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compat-libgfortran-48/gcc48-libgomp-20160715.patch
Marek Polacek ab223e416b Initial version. 
Resolves: #1916228
2021-01-20 19:56:15 -05:00

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--- libgomp/config/linux/wait.h.jj 2013-01-31 20:29:10.091548989 +0100
+++ libgomp/config/linux/wait.h 2016-07-13 16:57:18.902355979 +0200
@@ -34,13 +34,13 @@
#define FUTEX_WAIT 0
#define FUTEX_WAKE 1
-#define FUTEX_PRIVATE_FLAG 128L
+#define FUTEX_PRIVATE_FLAG 128
#ifdef HAVE_ATTRIBUTE_VISIBILITY
# pragma GCC visibility push(hidden)
#endif
-extern long int gomp_futex_wait, gomp_futex_wake;
+extern int gomp_futex_wait, gomp_futex_wake;
#include <futex.h>
@@ -48,7 +48,9 @@ static inline int do_spin (int *addr, in
{
unsigned long long i, count = gomp_spin_count_var;
- if (__builtin_expect (gomp_managed_threads > gomp_available_cpus, 0))
+ if (__builtin_expect (__atomic_load_n (&gomp_managed_threads,
+ MEMMODEL_RELAXED)
+ > gomp_available_cpus, 0))
count = gomp_throttled_spin_count_var;
for (i = 0; i < count; i++)
if (__builtin_expect (__atomic_load_n (addr, MEMMODEL_RELAXED) != val, 0))
--- libgomp/config/linux/affinity.c.jj 2014-05-15 10:56:37.499502573 +0200
+++ libgomp/config/linux/affinity.c 2016-07-13 16:57:18.902355979 +0200
@@ -352,6 +352,45 @@ gomp_affinity_print_place (void *p)
fprintf (stderr, ":%lu", len);
}
+int
+omp_get_place_num_procs (int place_num)
+{
+ if (place_num < 0 || place_num >= gomp_places_list_len)
+ return 0;
+
+ cpu_set_t *cpusetp = (cpu_set_t *) gomp_places_list[place_num];
+ return gomp_cpuset_popcount (gomp_cpuset_size, cpusetp);
+}
+
+void
+omp_get_place_proc_ids (int place_num, int *ids)
+{
+ if (place_num < 0 || place_num >= gomp_places_list_len)
+ return;
+
+ cpu_set_t *cpusetp = (cpu_set_t *) gomp_places_list[place_num];
+ unsigned long i, max = 8 * gomp_cpuset_size;
+ for (i = 0; i < max; i++)
+ if (CPU_ISSET_S (i, gomp_cpuset_size, cpusetp))
+ *ids++ = i;
+}
+
+void
+gomp_get_place_proc_ids_8 (int place_num, int64_t *ids)
+{
+ if (place_num < 0 || place_num >= gomp_places_list_len)
+ return;
+
+ cpu_set_t *cpusetp = (cpu_set_t *) gomp_places_list[place_num];
+ unsigned long i, max = 8 * gomp_cpuset_size;
+ for (i = 0; i < max; i++)
+ if (CPU_ISSET_S (i, gomp_cpuset_size, cpusetp))
+ *ids++ = i;
+}
+
+ialias(omp_get_place_num_procs)
+ialias(omp_get_place_proc_ids)
+
#else
#include "../posix/affinity.c"
--- libgomp/config/linux/mutex.c.jj 2013-01-21 16:00:38.220917670 +0100
+++ libgomp/config/linux/mutex.c 2016-07-13 16:57:18.870356375 +0200
@@ -28,8 +28,8 @@
#include "wait.h"
-long int gomp_futex_wake = FUTEX_WAKE | FUTEX_PRIVATE_FLAG;
-long int gomp_futex_wait = FUTEX_WAIT | FUTEX_PRIVATE_FLAG;
+int gomp_futex_wake = FUTEX_WAKE | FUTEX_PRIVATE_FLAG;
+int gomp_futex_wait = FUTEX_WAIT | FUTEX_PRIVATE_FLAG;
void
gomp_mutex_lock_slow (gomp_mutex_t *mutex, int oldval)
--- libgomp/config/posix/affinity.c.jj 2014-05-15 10:56:37.987498844 +0200
+++ libgomp/config/posix/affinity.c 2016-07-15 12:08:28.410015743 +0200
@@ -113,3 +113,27 @@ gomp_affinity_print_place (void *p)
{
(void) p;
}
+
+int
+omp_get_place_num_procs (int place_num)
+{
+ (void) place_num;
+ return 0;
+}
+
+void
+omp_get_place_proc_ids (int place_num, int *ids)
+{
+ (void) place_num;
+ (void) ids;
+}
+
+void
+gomp_get_place_proc_ids_8 (int place_num, int64_t *ids)
+{
+ (void) place_num;
+ (void) ids;
+}
+
+ialias(omp_get_place_num_procs)
+ialias(omp_get_place_proc_ids)
--- libgomp/loop_ull.c.jj 2013-01-21 16:00:46.477871806 +0100
+++ libgomp/loop_ull.c 2016-07-13 16:57:18.918355780 +0200
@@ -174,15 +174,15 @@ GOMP_loop_ull_runtime_start (bool up, go
{
case GFS_STATIC:
return gomp_loop_ull_static_start (up, start, end, incr,
- icv->run_sched_modifier,
+ icv->run_sched_chunk_size,
istart, iend);
case GFS_DYNAMIC:
return gomp_loop_ull_dynamic_start (up, start, end, incr,
- icv->run_sched_modifier,
+ icv->run_sched_chunk_size,
istart, iend);
case GFS_GUIDED:
return gomp_loop_ull_guided_start (up, start, end, incr,
- icv->run_sched_modifier,
+ icv->run_sched_chunk_size,
istart, iend);
case GFS_AUTO:
/* For now map to schedule(static), later on we could play with feedback
@@ -278,15 +278,15 @@ GOMP_loop_ull_ordered_runtime_start (boo
{
case GFS_STATIC:
return gomp_loop_ull_ordered_static_start (up, start, end, incr,
- icv->run_sched_modifier,
+ icv->run_sched_chunk_size,
istart, iend);
case GFS_DYNAMIC:
return gomp_loop_ull_ordered_dynamic_start (up, start, end, incr,
- icv->run_sched_modifier,
+ icv->run_sched_chunk_size,
istart, iend);
case GFS_GUIDED:
return gomp_loop_ull_ordered_guided_start (up, start, end, incr,
- icv->run_sched_modifier,
+ icv->run_sched_chunk_size,
istart, iend);
case GFS_AUTO:
/* For now map to schedule(static), later on we could play with feedback
@@ -298,6 +298,114 @@ GOMP_loop_ull_ordered_runtime_start (boo
}
}
+/* The *_doacross_*_start routines are similar. The only difference is that
+ this work-share construct is initialized to expect an ORDERED(N) - DOACROSS
+ section, and the worksharing loop iterates always from 0 to COUNTS[0] - 1
+ and other COUNTS array elements tell the library number of iterations
+ in the ordered inner loops. */
+
+static bool
+gomp_loop_ull_doacross_static_start (unsigned ncounts, gomp_ull *counts,
+ gomp_ull chunk_size, gomp_ull *istart,
+ gomp_ull *iend)
+{
+ struct gomp_thread *thr = gomp_thread ();
+
+ thr->ts.static_trip = 0;
+ if (gomp_work_share_start (false))
+ {
+ gomp_loop_ull_init (thr->ts.work_share, true, 0, counts[0], 1,
+ GFS_STATIC, chunk_size);
+ gomp_doacross_ull_init (ncounts, counts, chunk_size);
+ gomp_work_share_init_done ();
+ }
+
+ return !gomp_iter_ull_static_next (istart, iend);
+}
+
+static bool
+gomp_loop_ull_doacross_dynamic_start (unsigned ncounts, gomp_ull *counts,
+ gomp_ull chunk_size, gomp_ull *istart,
+ gomp_ull *iend)
+{
+ struct gomp_thread *thr = gomp_thread ();
+ bool ret;
+
+ if (gomp_work_share_start (false))
+ {
+ gomp_loop_ull_init (thr->ts.work_share, true, 0, counts[0], 1,
+ GFS_DYNAMIC, chunk_size);
+ gomp_doacross_ull_init (ncounts, counts, chunk_size);
+ gomp_work_share_init_done ();
+ }
+
+#if defined HAVE_SYNC_BUILTINS && defined __LP64__
+ ret = gomp_iter_ull_dynamic_next (istart, iend);
+#else
+ gomp_mutex_lock (&thr->ts.work_share->lock);
+ ret = gomp_iter_ull_dynamic_next_locked (istart, iend);
+ gomp_mutex_unlock (&thr->ts.work_share->lock);
+#endif
+
+ return ret;
+}
+
+static bool
+gomp_loop_ull_doacross_guided_start (unsigned ncounts, gomp_ull *counts,
+ gomp_ull chunk_size, gomp_ull *istart,
+ gomp_ull *iend)
+{
+ struct gomp_thread *thr = gomp_thread ();
+ bool ret;
+
+ if (gomp_work_share_start (false))
+ {
+ gomp_loop_ull_init (thr->ts.work_share, true, 0, counts[0], 1,
+ GFS_GUIDED, chunk_size);
+ gomp_doacross_ull_init (ncounts, counts, chunk_size);
+ gomp_work_share_init_done ();
+ }
+
+#if defined HAVE_SYNC_BUILTINS && defined __LP64__
+ ret = gomp_iter_ull_guided_next (istart, iend);
+#else
+ gomp_mutex_lock (&thr->ts.work_share->lock);
+ ret = gomp_iter_ull_guided_next_locked (istart, iend);
+ gomp_mutex_unlock (&thr->ts.work_share->lock);
+#endif
+
+ return ret;
+}
+
+bool
+GOMP_loop_ull_doacross_runtime_start (unsigned ncounts, gomp_ull *counts,
+ gomp_ull *istart, gomp_ull *iend)
+{
+ struct gomp_task_icv *icv = gomp_icv (false);
+ switch (icv->run_sched_var)
+ {
+ case GFS_STATIC:
+ return gomp_loop_ull_doacross_static_start (ncounts, counts,
+ icv->run_sched_chunk_size,
+ istart, iend);
+ case GFS_DYNAMIC:
+ return gomp_loop_ull_doacross_dynamic_start (ncounts, counts,
+ icv->run_sched_chunk_size,
+ istart, iend);
+ case GFS_GUIDED:
+ return gomp_loop_ull_doacross_guided_start (ncounts, counts,
+ icv->run_sched_chunk_size,
+ istart, iend);
+ case GFS_AUTO:
+ /* For now map to schedule(static), later on we could play with feedback
+ driven choice. */
+ return gomp_loop_ull_doacross_static_start (ncounts, counts,
+ 0, istart, iend);
+ default:
+ abort ();
+ }
+}
+
/* The *_next routines are called when the thread completes processing of
the iteration block currently assigned to it. If the work-share
construct is bound directly to a parallel construct, then the iteration
@@ -457,6 +565,10 @@ extern __typeof(gomp_loop_ull_dynamic_st
__attribute__((alias ("gomp_loop_ull_dynamic_start")));
extern __typeof(gomp_loop_ull_guided_start) GOMP_loop_ull_guided_start
__attribute__((alias ("gomp_loop_ull_guided_start")));
+extern __typeof(gomp_loop_ull_dynamic_start) GOMP_loop_ull_nonmonotonic_dynamic_start
+ __attribute__((alias ("gomp_loop_ull_dynamic_start")));
+extern __typeof(gomp_loop_ull_guided_start) GOMP_loop_ull_nonmonotonic_guided_start
+ __attribute__((alias ("gomp_loop_ull_guided_start")));
extern __typeof(gomp_loop_ull_ordered_static_start) GOMP_loop_ull_ordered_static_start
__attribute__((alias ("gomp_loop_ull_ordered_static_start")));
@@ -465,12 +577,23 @@ extern __typeof(gomp_loop_ull_ordered_dy
extern __typeof(gomp_loop_ull_ordered_guided_start) GOMP_loop_ull_ordered_guided_start
__attribute__((alias ("gomp_loop_ull_ordered_guided_start")));
+extern __typeof(gomp_loop_ull_doacross_static_start) GOMP_loop_ull_doacross_static_start
+ __attribute__((alias ("gomp_loop_ull_doacross_static_start")));
+extern __typeof(gomp_loop_ull_doacross_dynamic_start) GOMP_loop_ull_doacross_dynamic_start
+ __attribute__((alias ("gomp_loop_ull_doacross_dynamic_start")));
+extern __typeof(gomp_loop_ull_doacross_guided_start) GOMP_loop_ull_doacross_guided_start
+ __attribute__((alias ("gomp_loop_ull_doacross_guided_start")));
+
extern __typeof(gomp_loop_ull_static_next) GOMP_loop_ull_static_next
__attribute__((alias ("gomp_loop_ull_static_next")));
extern __typeof(gomp_loop_ull_dynamic_next) GOMP_loop_ull_dynamic_next
__attribute__((alias ("gomp_loop_ull_dynamic_next")));
extern __typeof(gomp_loop_ull_guided_next) GOMP_loop_ull_guided_next
__attribute__((alias ("gomp_loop_ull_guided_next")));
+extern __typeof(gomp_loop_ull_dynamic_next) GOMP_loop_ull_nonmonotonic_dynamic_next
+ __attribute__((alias ("gomp_loop_ull_dynamic_next")));
+extern __typeof(gomp_loop_ull_guided_next) GOMP_loop_ull_nonmonotonic_guided_next
+ __attribute__((alias ("gomp_loop_ull_guided_next")));
extern __typeof(gomp_loop_ull_ordered_static_next) GOMP_loop_ull_ordered_static_next
__attribute__((alias ("gomp_loop_ull_ordered_static_next")));
@@ -507,6 +630,25 @@ GOMP_loop_ull_guided_start (bool up, gom
}
bool
+GOMP_loop_ull_nonmonotonic_dynamic_start (bool up, gomp_ull start,
+ gomp_ull end, gomp_ull incr,
+ gomp_ull chunk_size,
+ gomp_ull *istart, gomp_ull *iend)
+{
+ return gomp_loop_ull_dynamic_start (up, start, end, incr, chunk_size, istart,
+ iend);
+}
+
+bool
+GOMP_loop_ull_nonmonotonic_guided_start (bool up, gomp_ull start, gomp_ull end,
+ gomp_ull incr, gomp_ull chunk_size,
+ gomp_ull *istart, gomp_ull *iend)
+{
+ return gomp_loop_ull_guided_start (up, start, end, incr, chunk_size, istart,
+ iend);
+}
+
+bool
GOMP_loop_ull_ordered_static_start (bool up, gomp_ull start, gomp_ull end,
gomp_ull incr, gomp_ull chunk_size,
gomp_ull *istart, gomp_ull *iend)
@@ -534,6 +676,33 @@ GOMP_loop_ull_ordered_guided_start (bool
}
bool
+GOMP_loop_ull_doacross_static_start (unsigned ncounts, gomp_ull *counts,
+ gomp_ull chunk_size, gomp_ull *istart,
+ gomp_ull *iend)
+{
+ return gomp_loop_ull_doacross_static_start (ncounts, counts, chunk_size,
+ istart, iend);
+}
+
+bool
+GOMP_loop_ull_doacross_dynamic_start (unsigned ncounts, gomp_ull *counts,
+ gomp_ull chunk_size, gomp_ull *istart,
+ gomp_ull *iend)
+{
+ return gomp_loop_ull_doacross_dynamic_start (ncounts, counts, chunk_size,
+ istart, iend);
+}
+
+bool
+GOMP_loop_ull_doacross_guided_start (unsigned ncounts, gomp_ull *counts,
+ gomp_ull chunk_size, gomp_ull *istart,
+ gomp_ull *iend)
+{
+ return gomp_loop_ull_doacross_guided_start (ncounts, counts, chunk_size,
+ istart, iend);
+}
+
+bool
GOMP_loop_ull_static_next (gomp_ull *istart, gomp_ull *iend)
{
return gomp_loop_ull_static_next (istart, iend);
@@ -550,6 +719,18 @@ GOMP_loop_ull_guided_next (gomp_ull *ist
{
return gomp_loop_ull_guided_next (istart, iend);
}
+
+bool
+GOMP_loop_ull_nonmonotonic_dynamic_next (gomp_ull *istart, gomp_ull *iend)
+{
+ return gomp_loop_ull_dynamic_next (istart, iend);
+}
+
+bool
+GOMP_loop_ull_nonmonotonic_guided_next (gomp_ull *istart, gomp_ull *iend)
+{
+ return gomp_loop_ull_guided_next (istart, iend);
+}
bool
GOMP_loop_ull_ordered_static_next (gomp_ull *istart, gomp_ull *iend)
--- libgomp/team.c.jj 2014-05-15 10:56:32.092524669 +0200
+++ libgomp/team.c 2016-07-13 17:58:01.907291111 +0200
@@ -133,6 +133,25 @@ gomp_thread_start (void *xdata)
return NULL;
}
+static inline struct gomp_team *
+get_last_team (unsigned nthreads)
+{
+ struct gomp_thread *thr = gomp_thread ();
+ if (thr->ts.team == NULL)
+ {
+ struct gomp_thread_pool *pool = thr->thread_pool;
+ if (pool != NULL)
+ {
+ struct gomp_team *last_team = pool->last_team;
+ if (last_team != NULL && last_team->nthreads == nthreads)
+ {
+ pool->last_team = NULL;
+ return last_team;
+ }
+ }
+ }
+ return NULL;
+}
/* Create a new team data structure. */
@@ -140,18 +159,27 @@ struct gomp_team *
gomp_new_team (unsigned nthreads)
{
struct gomp_team *team;
- size_t size;
int i;
- size = sizeof (*team) + nthreads * (sizeof (team->ordered_release[0])
- + sizeof (team->implicit_task[0]));
- team = gomp_malloc (size);
+ team = get_last_team (nthreads);
+ if (team == NULL)
+ {
+ size_t extra = sizeof (team->ordered_release[0])
+ + sizeof (team->implicit_task[0]);
+ team = gomp_malloc (sizeof (*team) + nthreads * extra);
+
+#ifndef HAVE_SYNC_BUILTINS
+ gomp_mutex_init (&team->work_share_list_free_lock);
+#endif
+ gomp_barrier_init (&team->barrier, nthreads);
+ gomp_mutex_init (&team->task_lock);
+
+ team->nthreads = nthreads;
+ }
team->work_share_chunk = 8;
#ifdef HAVE_SYNC_BUILTINS
team->single_count = 0;
-#else
- gomp_mutex_init (&team->work_share_list_free_lock);
#endif
team->work_shares_to_free = &team->work_shares[0];
gomp_init_work_share (&team->work_shares[0], false, nthreads);
@@ -162,15 +190,11 @@ gomp_new_team (unsigned nthreads)
team->work_shares[i].next_free = &team->work_shares[i + 1];
team->work_shares[i].next_free = NULL;
- team->nthreads = nthreads;
- gomp_barrier_init (&team->barrier, nthreads);
-
gomp_sem_init (&team->master_release, 0);
team->ordered_release = (void *) &team->implicit_task[nthreads];
team->ordered_release[0] = &team->master_release;
- gomp_mutex_init (&team->task_lock);
- team->task_queue = NULL;
+ priority_queue_init (&team->task_queue);
team->task_count = 0;
team->task_queued_count = 0;
team->task_running_count = 0;
@@ -186,8 +210,12 @@ gomp_new_team (unsigned nthreads)
static void
free_team (struct gomp_team *team)
{
+#ifndef HAVE_SYNC_BUILTINS
+ gomp_mutex_destroy (&team->work_share_list_free_lock);
+#endif
gomp_barrier_destroy (&team->barrier);
gomp_mutex_destroy (&team->task_lock);
+ priority_queue_free (&team->task_queue);
free (team);
}
@@ -258,6 +286,8 @@ gomp_free_thread (void *arg __attribute_
free (pool);
thr->thread_pool = NULL;
}
+ if (thr->ts.level == 0 && __builtin_expect (thr->ts.team != NULL, 0))
+ gomp_team_end ();
if (thr->task != NULL)
{
struct gomp_task *task = thr->task;
@@ -287,7 +317,7 @@ gomp_team_start (void (*fn) (void *), vo
struct gomp_thread **affinity_thr = NULL;
thr = gomp_thread ();
- nested = thr->ts.team != NULL;
+ nested = thr->ts.level;
if (__builtin_expect (thr->thread_pool == NULL, 0))
{
thr->thread_pool = gomp_new_thread_pool ();
@@ -894,9 +924,6 @@ gomp_team_end (void)
while (ws != NULL);
}
gomp_sem_destroy (&team->master_release);
-#ifndef HAVE_SYNC_BUILTINS
- gomp_mutex_destroy (&team->work_share_list_free_lock);
-#endif
if (__builtin_expect (thr->ts.team != NULL, 0)
|| __builtin_expect (team->nthreads == 1, 0))
--- libgomp/target.c.jj 2014-05-15 10:56:38.313498020 +0200
+++ libgomp/target.c 2016-07-15 16:58:29.249328861 +0200
@@ -22,14 +22,22 @@
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
-/* This file handles the maintainence of threads in response to team
- creation and termination. */
+/* This file contains the support of offloading. */
+#include "config.h"
#include "libgomp.h"
+#include "oacc-plugin.h"
+#include "oacc-int.h"
+#include "gomp-constants.h"
#include <limits.h>
#include <stdbool.h>
#include <stdlib.h>
+#ifdef HAVE_INTTYPES_H
+# include <inttypes.h> /* For PRIu64. */
+#endif
#include <string.h>
+#include <assert.h>
+#include <errno.h>
attribute_hidden int
gomp_get_num_devices (void)
@@ -37,22 +45,87 @@ gomp_get_num_devices (void)
return 0;
}
-/* Called when encountering a target directive. If DEVICE
- is -1, it means use device-var ICV. If it is -2 (or any other value
- larger than last available hw device, use host fallback.
- FN is address of host code, OPENMP_TARGET contains value of the
- __OPENMP_TARGET__ symbol in the shared library or binary that invokes
- GOMP_target. HOSTADDRS, SIZES and KINDS are arrays
- with MAPNUM entries, with addresses of the host objects,
- sizes of the host objects (resp. for pointer kind pointer bias
- and assumed sizeof (void *) size) and kinds. */
+/* This function should be called from every offload image while loading.
+ It gets the descriptor of the host func and var tables HOST_TABLE, TYPE of
+ the target, and TARGET_DATA needed by target plugin. */
void
-GOMP_target (int device, void (*fn) (void *), const void *openmp_target,
- size_t mapnum, void **hostaddrs, size_t *sizes,
- unsigned char *kinds)
+GOMP_offload_register_ver (unsigned version, const void *host_table,
+ int target_type, const void *target_data)
+{
+ (void) version;
+ (void) host_table;
+ (void) target_type;
+ (void) target_data;
+}
+
+void
+GOMP_offload_register (const void *host_table, int target_type,
+ const void *target_data)
+{
+ (void) host_table;
+ (void) target_type;
+ (void) target_data;
+}
+
+/* This function should be called from every offload image while unloading.
+ It gets the descriptor of the host func and var tables HOST_TABLE, TYPE of
+ the target, and TARGET_DATA needed by target plugin. */
+
+void
+GOMP_offload_unregister_ver (unsigned version, const void *host_table,
+ int target_type, const void *target_data)
+{
+ (void) version;
+ (void) host_table;
+ (void) target_type;
+ (void) target_data;
+}
+
+void
+GOMP_offload_unregister (const void *host_table, int target_type,
+ const void *target_data)
+{
+ (void) host_table;
+ (void) target_type;
+ (void) target_data;
+}
+
+/* This function initializes the target device, specified by DEVICEP. DEVICEP
+ must be locked on entry, and remains locked on return. */
+
+attribute_hidden void
+gomp_init_device (struct gomp_device_descr *devicep)
+{
+ devicep->state = GOMP_DEVICE_INITIALIZED;
+}
+
+attribute_hidden void
+gomp_unload_device (struct gomp_device_descr *devicep)
+{
+}
+
+/* Free address mapping tables. MM must be locked on entry, and remains locked
+ on return. */
+
+attribute_hidden void
+gomp_free_memmap (struct splay_tree_s *mem_map)
+{
+ while (mem_map->root)
+ {
+ struct target_mem_desc *tgt = mem_map->root->key.tgt;
+
+ splay_tree_remove (mem_map, &mem_map->root->key);
+ free (tgt->array);
+ free (tgt);
+ }
+}
+
+/* Host fallback for GOMP_target{,_ext} routines. */
+
+static void
+gomp_target_fallback (void (*fn) (void *), void **hostaddrs)
{
- /* Host fallback. */
struct gomp_thread old_thr, *thr = gomp_thread ();
old_thr = *thr;
memset (thr, '\0', sizeof (*thr));
@@ -66,10 +139,167 @@ GOMP_target (int device, void (*fn) (voi
*thr = old_thr;
}
+/* Calculate alignment and size requirements of a private copy of data shared
+ as GOMP_MAP_FIRSTPRIVATE and store them to TGT_ALIGN and TGT_SIZE. */
+
+static inline void
+calculate_firstprivate_requirements (size_t mapnum, size_t *sizes,
+ unsigned short *kinds, size_t *tgt_align,
+ size_t *tgt_size)
+{
+ size_t i;
+ for (i = 0; i < mapnum; i++)
+ if ((kinds[i] & 0xff) == GOMP_MAP_FIRSTPRIVATE)
+ {
+ size_t align = (size_t) 1 << (kinds[i] >> 8);
+ if (*tgt_align < align)
+ *tgt_align = align;
+ *tgt_size = (*tgt_size + align - 1) & ~(align - 1);
+ *tgt_size += sizes[i];
+ }
+}
+
+/* Copy data shared as GOMP_MAP_FIRSTPRIVATE to DST. */
+
+static inline void
+copy_firstprivate_data (char *tgt, size_t mapnum, void **hostaddrs,
+ size_t *sizes, unsigned short *kinds, size_t tgt_align,
+ size_t tgt_size)
+{
+ uintptr_t al = (uintptr_t) tgt & (tgt_align - 1);
+ if (al)
+ tgt += tgt_align - al;
+ tgt_size = 0;
+ size_t i;
+ for (i = 0; i < mapnum; i++)
+ if ((kinds[i] & 0xff) == GOMP_MAP_FIRSTPRIVATE)
+ {
+ size_t align = (size_t) 1 << (kinds[i] >> 8);
+ tgt_size = (tgt_size + align - 1) & ~(align - 1);
+ memcpy (tgt + tgt_size, hostaddrs[i], sizes[i]);
+ hostaddrs[i] = tgt + tgt_size;
+ tgt_size = tgt_size + sizes[i];
+ }
+}
+
+/* Called when encountering a target directive. If DEVICE
+ is GOMP_DEVICE_ICV, it means use device-var ICV. If it is
+ GOMP_DEVICE_HOST_FALLBACK (or any value
+ larger than last available hw device), use host fallback.
+ FN is address of host code, UNUSED is part of the current ABI, but
+ we're not actually using it. HOSTADDRS, SIZES and KINDS are arrays
+ with MAPNUM entries, with addresses of the host objects,
+ sizes of the host objects (resp. for pointer kind pointer bias
+ and assumed sizeof (void *) size) and kinds. */
+
+void
+GOMP_target (int device, void (*fn) (void *), const void *unused,
+ size_t mapnum, void **hostaddrs, size_t *sizes,
+ unsigned char *kinds)
+{
+ return gomp_target_fallback (fn, hostaddrs);
+}
+
+/* Like GOMP_target, but KINDS is 16-bit, UNUSED is no longer present,
+ and several arguments have been added:
+ FLAGS is a bitmask, see GOMP_TARGET_FLAG_* in gomp-constants.h.
+ DEPEND is array of dependencies, see GOMP_task for details.
+
+ ARGS is a pointer to an array consisting of a variable number of both
+ device-independent and device-specific arguments, which can take one two
+ elements where the first specifies for which device it is intended, the type
+ and optionally also the value. If the value is not present in the first
+ one, the whole second element the actual value. The last element of the
+ array is a single NULL. Among the device independent can be for example
+ NUM_TEAMS and THREAD_LIMIT.
+
+ NUM_TEAMS is positive if GOMP_teams will be called in the body with
+ that value, or 1 if teams construct is not present, or 0, if
+ teams construct does not have num_teams clause and so the choice is
+ implementation defined, and -1 if it can't be determined on the host
+ what value will GOMP_teams have on the device.
+ THREAD_LIMIT similarly is positive if GOMP_teams will be called in the
+ body with that value, or 0, if teams construct does not have thread_limit
+ clause or the teams construct is not present, or -1 if it can't be
+ determined on the host what value will GOMP_teams have on the device. */
+
+void
+GOMP_target_ext (int device, void (*fn) (void *), size_t mapnum,
+ void **hostaddrs, size_t *sizes, unsigned short *kinds,
+ unsigned int flags, void **depend, void **args)
+{
+ size_t tgt_align = 0, tgt_size = 0;
+ bool fpc_done = false;
+
+ if (flags & GOMP_TARGET_FLAG_NOWAIT)
+ {
+ struct gomp_thread *thr = gomp_thread ();
+ if (thr->ts.team
+ && !thr->task->final_task)
+ {
+ gomp_create_target_task (NULL, fn, mapnum, hostaddrs,
+ sizes, kinds, flags, depend, args,
+ GOMP_TARGET_TASK_BEFORE_MAP);
+ return;
+ }
+ }
+
+ /* If there are depend clauses, but nowait is not present
+ (or we are in a final task), block the parent task until the
+ dependencies are resolved and then just continue with the rest
+ of the function as if it is a merged task. */
+ if (depend != NULL)
+ {
+ struct gomp_thread *thr = gomp_thread ();
+ if (thr->task && thr->task->depend_hash)
+ {
+ /* If we might need to wait, copy firstprivate now. */
+ calculate_firstprivate_requirements (mapnum, sizes, kinds,
+ &tgt_align, &tgt_size);
+ if (tgt_align)
+ {
+ char *tgt = gomp_alloca (tgt_size + tgt_align - 1);
+ copy_firstprivate_data (tgt, mapnum, hostaddrs, sizes, kinds,
+ tgt_align, tgt_size);
+ }
+ fpc_done = true;
+ gomp_task_maybe_wait_for_dependencies (depend);
+ }
+ }
+
+ if (!fpc_done)
+ {
+ calculate_firstprivate_requirements (mapnum, sizes, kinds,
+ &tgt_align, &tgt_size);
+ if (tgt_align)
+ {
+ char *tgt = gomp_alloca (tgt_size + tgt_align - 1);
+ copy_firstprivate_data (tgt, mapnum, hostaddrs, sizes, kinds,
+ tgt_align, tgt_size);
+ }
+ }
+ gomp_target_fallback (fn, hostaddrs);
+}
+
+/* Host fallback for GOMP_target_data{,_ext} routines. */
+
+static void
+gomp_target_data_fallback (void)
+{
+}
+
void
-GOMP_target_data (int device, const void *openmp_target, size_t mapnum,
+GOMP_target_data (int device, const void *unused, size_t mapnum,
void **hostaddrs, size_t *sizes, unsigned char *kinds)
{
+ return gomp_target_data_fallback ();
+}
+
+void
+GOMP_target_data_ext (int device, size_t mapnum, void **hostaddrs,
+ size_t *sizes, unsigned short *kinds)
+{
+ return gomp_target_data_fallback ();
}
void
@@ -78,12 +308,112 @@ GOMP_target_end_data (void)
}
void
-GOMP_target_update (int device, const void *openmp_target, size_t mapnum,
+GOMP_target_update (int device, const void *unused, size_t mapnum,
void **hostaddrs, size_t *sizes, unsigned char *kinds)
{
}
void
+GOMP_target_update_ext (int device, size_t mapnum, void **hostaddrs,
+ size_t *sizes, unsigned short *kinds,
+ unsigned int flags, void **depend)
+{
+ /* If there are depend clauses, but nowait is not present,
+ block the parent task until the dependencies are resolved
+ and then just continue with the rest of the function as if it
+ is a merged task. Until we are able to schedule task during
+ variable mapping or unmapping, ignore nowait if depend clauses
+ are not present. */
+ if (depend != NULL)
+ {
+ struct gomp_thread *thr = gomp_thread ();
+ if (thr->task && thr->task->depend_hash)
+ {
+ if ((flags & GOMP_TARGET_FLAG_NOWAIT)
+ && thr->ts.team
+ && !thr->task->final_task)
+ {
+ if (gomp_create_target_task (NULL, (void (*) (void *)) NULL,
+ mapnum, hostaddrs, sizes, kinds,
+ flags | GOMP_TARGET_FLAG_UPDATE,
+ depend, NULL, GOMP_TARGET_TASK_DATA))
+ return;
+ }
+ else
+ {
+ struct gomp_team *team = thr->ts.team;
+ /* If parallel or taskgroup has been cancelled, don't start new
+ tasks. */
+ if (team
+ && (gomp_team_barrier_cancelled (&team->barrier)
+ || (thr->task->taskgroup
+ && thr->task->taskgroup->cancelled)))
+ return;
+
+ gomp_task_maybe_wait_for_dependencies (depend);
+ }
+ }
+ }
+}
+
+void
+GOMP_target_enter_exit_data (int device, size_t mapnum, void **hostaddrs,
+ size_t *sizes, unsigned short *kinds,
+ unsigned int flags, void **depend)
+{
+ /* If there are depend clauses, but nowait is not present,
+ block the parent task until the dependencies are resolved
+ and then just continue with the rest of the function as if it
+ is a merged task. Until we are able to schedule task during
+ variable mapping or unmapping, ignore nowait if depend clauses
+ are not present. */
+ if (depend != NULL)
+ {
+ struct gomp_thread *thr = gomp_thread ();
+ if (thr->task && thr->task->depend_hash)
+ {
+ if ((flags & GOMP_TARGET_FLAG_NOWAIT)
+ && thr->ts.team
+ && !thr->task->final_task)
+ {
+ if (gomp_create_target_task (NULL, (void (*) (void *)) NULL,
+ mapnum, hostaddrs, sizes, kinds,
+ flags, depend, NULL,
+ GOMP_TARGET_TASK_DATA))
+ return;
+ }
+ else
+ {
+ struct gomp_team *team = thr->ts.team;
+ /* If parallel or taskgroup has been cancelled, don't start new
+ tasks. */
+ if (team
+ && (gomp_team_barrier_cancelled (&team->barrier)
+ || (thr->task->taskgroup
+ && thr->task->taskgroup->cancelled)))
+ return;
+
+ gomp_task_maybe_wait_for_dependencies (depend);
+ }
+ }
+ }
+}
+
+bool
+gomp_target_task_fn (void *data)
+{
+ struct gomp_target_task *ttask = (struct gomp_target_task *) data;
+
+ if (ttask->fn != NULL)
+ {
+ ttask->state = GOMP_TARGET_TASK_FALLBACK;
+ gomp_target_fallback (ttask->fn, ttask->hostaddrs);
+ return false;
+ }
+ return false;
+}
+
+void
GOMP_teams (unsigned int num_teams, unsigned int thread_limit)
{
if (thread_limit)
@@ -94,3 +424,153 @@ GOMP_teams (unsigned int num_teams, unsi
}
(void) num_teams;
}
+
+void *
+omp_target_alloc (size_t size, int device_num)
+{
+ if (device_num == GOMP_DEVICE_HOST_FALLBACK)
+ return malloc (size);
+
+ return NULL;
+}
+
+void
+omp_target_free (void *device_ptr, int device_num)
+{
+ if (device_ptr == NULL)
+ return;
+
+ if (device_num == GOMP_DEVICE_HOST_FALLBACK)
+ {
+ free (device_ptr);
+ return;
+ }
+}
+
+int
+omp_target_is_present (void *ptr, int device_num)
+{
+ if (ptr == NULL)
+ return 1;
+
+ if (device_num == GOMP_DEVICE_HOST_FALLBACK)
+ return 1;
+
+ return 0;
+}
+
+int
+omp_target_memcpy (void *dst, void *src, size_t length, size_t dst_offset,
+ size_t src_offset, int dst_device_num, int src_device_num)
+{
+ if (dst_device_num != GOMP_DEVICE_HOST_FALLBACK)
+ return EINVAL;
+ if (src_device_num != GOMP_DEVICE_HOST_FALLBACK)
+ return EINVAL;
+ memcpy ((char *) dst + dst_offset, (char *) src + src_offset, length);
+ return 0;
+}
+
+#define HALF_SIZE_T (((size_t) 1) << (8 * sizeof (size_t) / 2))
+
+#define __builtin_mul_overflow(x, y, z) \
+ ({ bool retval = false; \
+ size_t xval = (x); \
+ size_t yval = (y); \
+ size_t zval = xval * yval; \
+ if (__builtin_expect ((xval | yval) >= HALF_SIZE_T, 0)) \
+ { \
+ if (xval && zval / xval != yval) \
+ retval = true; \
+ } \
+ *(z) = zval; \
+ retval; })
+
+static int
+omp_target_memcpy_rect_worker (void *dst, void *src, size_t element_size,
+ int num_dims, const size_t *volume,
+ const size_t *dst_offsets,
+ const size_t *src_offsets,
+ const size_t *dst_dimensions,
+ const size_t *src_dimensions)
+{
+ size_t dst_slice = element_size;
+ size_t src_slice = element_size;
+ size_t j, dst_off, src_off, length;
+ int i, ret;
+
+
+ if (num_dims == 1)
+ {
+ if (__builtin_mul_overflow (element_size, volume[0], &length)
+ || __builtin_mul_overflow (element_size, dst_offsets[0], &dst_off)
+ || __builtin_mul_overflow (element_size, src_offsets[0], &src_off))
+ return EINVAL;
+ memcpy ((char *) dst + dst_off, (char *) src + src_off, length);
+ ret = 1;
+ return ret ? 0 : EINVAL;
+ }
+
+ /* FIXME: it would be nice to have some plugin function to handle
+ num_dims == 2 and num_dims == 3 more efficiently. Larger ones can
+ be handled in the generic recursion below, and for host-host it
+ should be used even for any num_dims >= 2. */
+
+ for (i = 1; i < num_dims; i++)
+ if (__builtin_mul_overflow (dst_slice, dst_dimensions[i], &dst_slice)
+ || __builtin_mul_overflow (src_slice, src_dimensions[i], &src_slice))
+ return EINVAL;
+ if (__builtin_mul_overflow (dst_slice, dst_offsets[0], &dst_off)
+ || __builtin_mul_overflow (src_slice, src_offsets[0], &src_off))
+ return EINVAL;
+ for (j = 0; j < volume[0]; j++)
+ {
+ ret = omp_target_memcpy_rect_worker ((char *) dst + dst_off,
+ (char *) src + src_off,
+ element_size, num_dims - 1,
+ volume + 1, dst_offsets + 1,
+ src_offsets + 1, dst_dimensions + 1,
+ src_dimensions + 1);
+ if (ret)
+ return ret;
+ dst_off += dst_slice;
+ src_off += src_slice;
+ }
+ return 0;
+}
+
+int
+omp_target_memcpy_rect (void *dst, void *src, size_t element_size,
+ int num_dims, const size_t *volume,
+ const size_t *dst_offsets,
+ const size_t *src_offsets,
+ const size_t *dst_dimensions,
+ const size_t *src_dimensions,
+ int dst_device_num, int src_device_num)
+{
+ if (!dst && !src)
+ return INT_MAX;
+
+ if (dst_device_num != GOMP_DEVICE_HOST_FALLBACK)
+ return EINVAL;
+ if (src_device_num != GOMP_DEVICE_HOST_FALLBACK)
+ return EINVAL;
+
+ int ret = omp_target_memcpy_rect_worker (dst, src, element_size, num_dims,
+ volume, dst_offsets, src_offsets,
+ dst_dimensions, src_dimensions);
+ return ret;
+}
+
+int
+omp_target_associate_ptr (void *host_ptr, void *device_ptr, size_t size,
+ size_t device_offset, int device_num)
+{
+ return EINVAL;
+}
+
+int
+omp_target_disassociate_ptr (void *ptr, int device_num)
+{
+ return EINVAL;
+}
--- libgomp/fortran.c.jj 2014-05-15 10:56:31.593531223 +0200
+++ libgomp/fortran.c 2016-07-13 16:57:04.432535397 +0200
@@ -67,12 +67,20 @@ ialias_redirect (omp_get_active_level)
ialias_redirect (omp_in_final)
ialias_redirect (omp_get_cancellation)
ialias_redirect (omp_get_proc_bind)
+ialias_redirect (omp_get_num_places)
+ialias_redirect (omp_get_place_num_procs)
+ialias_redirect (omp_get_place_proc_ids)
+ialias_redirect (omp_get_place_num)
+ialias_redirect (omp_get_partition_num_places)
+ialias_redirect (omp_get_partition_place_nums)
ialias_redirect (omp_set_default_device)
ialias_redirect (omp_get_default_device)
ialias_redirect (omp_get_num_devices)
ialias_redirect (omp_get_num_teams)
ialias_redirect (omp_get_team_num)
ialias_redirect (omp_is_initial_device)
+ialias_redirect (omp_get_initial_device)
+ialias_redirect (omp_get_max_task_priority)
#endif
#ifndef LIBGOMP_GNU_SYMBOL_VERSIONING
@@ -342,35 +350,35 @@ omp_get_wtime_ (void)
}
void
-omp_set_schedule_ (const int32_t *kind, const int32_t *modifier)
+omp_set_schedule_ (const int32_t *kind, const int32_t *chunk_size)
{
- omp_set_schedule (*kind, *modifier);
+ omp_set_schedule (*kind, *chunk_size);
}
void
-omp_set_schedule_8_ (const int32_t *kind, const int64_t *modifier)
+omp_set_schedule_8_ (const int32_t *kind, const int64_t *chunk_size)
{
- omp_set_schedule (*kind, TO_INT (*modifier));
+ omp_set_schedule (*kind, TO_INT (*chunk_size));
}
void
-omp_get_schedule_ (int32_t *kind, int32_t *modifier)
+omp_get_schedule_ (int32_t *kind, int32_t *chunk_size)
{
omp_sched_t k;
- int m;
- omp_get_schedule (&k, &m);
+ int cs;
+ omp_get_schedule (&k, &cs);
*kind = k;
- *modifier = m;
+ *chunk_size = cs;
}
void
-omp_get_schedule_8_ (int32_t *kind, int64_t *modifier)
+omp_get_schedule_8_ (int32_t *kind, int64_t *chunk_size)
{
omp_sched_t k;
- int m;
- omp_get_schedule (&k, &m);
+ int cs;
+ omp_get_schedule (&k, &cs);
*kind = k;
- *modifier = m;
+ *chunk_size = cs;
}
int32_t
@@ -451,6 +459,69 @@ omp_get_proc_bind_ (void)
return omp_get_proc_bind ();
}
+int32_t
+omp_get_num_places_ (void)
+{
+ return omp_get_num_places ();
+}
+
+int32_t
+omp_get_place_num_procs_ (const int32_t *place_num)
+{
+ return omp_get_place_num_procs (*place_num);
+}
+
+int32_t
+omp_get_place_num_procs_8_ (const int64_t *place_num)
+{
+ return omp_get_place_num_procs (TO_INT (*place_num));
+}
+
+void
+omp_get_place_proc_ids_ (const int32_t *place_num, int32_t *ids)
+{
+ omp_get_place_proc_ids (*place_num, (int *) ids);
+}
+
+void
+omp_get_place_proc_ids_8_ (const int64_t *place_num, int64_t *ids)
+{
+ gomp_get_place_proc_ids_8 (TO_INT (*place_num), ids);
+}
+
+int32_t
+omp_get_place_num_ (void)
+{
+ return omp_get_place_num ();
+}
+
+int32_t
+omp_get_partition_num_places_ (void)
+{
+ return omp_get_partition_num_places ();
+}
+
+void
+omp_get_partition_place_nums_ (int32_t *place_nums)
+{
+ omp_get_partition_place_nums ((int *) place_nums);
+}
+
+void
+omp_get_partition_place_nums_8_ (int64_t *place_nums)
+{
+ if (gomp_places_list == NULL)
+ return;
+
+ struct gomp_thread *thr = gomp_thread ();
+ if (thr->place == 0)
+ gomp_init_affinity ();
+
+ unsigned int i;
+ for (i = 0; i < thr->ts.place_partition_len; i++)
+ *place_nums++ = (int64_t) thr->ts.place_partition_off + i;
+}
+
void
omp_set_default_device_ (const int32_t *device_num)
{
@@ -492,3 +563,15 @@ omp_is_initial_device_ (void)
{
return omp_is_initial_device ();
}
+
+int32_t
+omp_get_initial_device_ (void)
+{
+ return omp_get_initial_device ();
+}
+
+int32_t
+omp_get_max_task_priority_ (void)
+{
+ return omp_get_max_task_priority ();
+}
--- libgomp/libgomp.map.jj 2014-05-15 10:56:31.927533549 +0200
+++ libgomp/libgomp.map 2016-07-13 16:57:04.434535373 +0200
@@ -134,6 +134,36 @@ OMP_4.0 {
omp_is_initial_device_;
} OMP_3.1;
+OMP_4.5 {
+ global:
+ omp_get_max_task_priority;
+ omp_get_max_task_priority_;
+ omp_get_num_places;
+ omp_get_num_places_;
+ omp_get_place_num_procs;
+ omp_get_place_num_procs_;
+ omp_get_place_num_procs_8_;
+ omp_get_place_proc_ids;
+ omp_get_place_proc_ids_;
+ omp_get_place_proc_ids_8_;
+ omp_get_place_num;
+ omp_get_place_num_;
+ omp_get_partition_num_places;
+ omp_get_partition_num_places_;
+ omp_get_partition_place_nums;
+ omp_get_partition_place_nums_;
+ omp_get_partition_place_nums_8_;
+ omp_get_initial_device;
+ omp_get_initial_device_;
+ omp_target_alloc;
+ omp_target_free;
+ omp_target_is_present;
+ omp_target_memcpy;
+ omp_target_memcpy_rect;
+ omp_target_associate_ptr;
+ omp_target_disassociate_ptr;
+} OMP_4.0;
+
GOMP_1.0 {
global:
GOMP_atomic_end;
@@ -227,3 +257,158 @@ GOMP_4.0 {
GOMP_target_update;
GOMP_teams;
} GOMP_3.0;
+
+GOMP_4.0.1 {
+ global:
+ GOMP_offload_register;
+ GOMP_offload_unregister;
+} GOMP_4.0;
+
+GOMP_4.5 {
+ global:
+ GOMP_target_ext;
+ GOMP_target_data_ext;
+ GOMP_target_update_ext;
+ GOMP_target_enter_exit_data;
+ GOMP_taskloop;
+ GOMP_taskloop_ull;
+ GOMP_offload_register_ver;
+ GOMP_offload_unregister_ver;
+ GOMP_loop_doacross_dynamic_start;
+ GOMP_loop_doacross_guided_start;
+ GOMP_loop_doacross_runtime_start;
+ GOMP_loop_doacross_static_start;
+ GOMP_doacross_post;
+ GOMP_doacross_wait;
+ GOMP_loop_ull_doacross_dynamic_start;
+ GOMP_loop_ull_doacross_guided_start;
+ GOMP_loop_ull_doacross_runtime_start;
+ GOMP_loop_ull_doacross_static_start;
+ GOMP_doacross_ull_post;
+ GOMP_doacross_ull_wait;
+ GOMP_loop_nonmonotonic_dynamic_next;
+ GOMP_loop_nonmonotonic_dynamic_start;
+ GOMP_loop_nonmonotonic_guided_next;
+ GOMP_loop_nonmonotonic_guided_start;
+ GOMP_loop_ull_nonmonotonic_dynamic_next;
+ GOMP_loop_ull_nonmonotonic_dynamic_start;
+ GOMP_loop_ull_nonmonotonic_guided_next;
+ GOMP_loop_ull_nonmonotonic_guided_start;
+ GOMP_parallel_loop_nonmonotonic_dynamic;
+ GOMP_parallel_loop_nonmonotonic_guided;
+} GOMP_4.0.1;
+
+OACC_2.0 {
+ global:
+ acc_get_num_devices;
+ acc_get_num_devices_h_;
+ acc_set_device_type;
+ acc_set_device_type_h_;
+ acc_get_device_type;
+ acc_get_device_type_h_;
+ acc_set_device_num;
+ acc_set_device_num_h_;
+ acc_get_device_num;
+ acc_get_device_num_h_;
+ acc_async_test;
+ acc_async_test_h_;
+ acc_async_test_all;
+ acc_async_test_all_h_;
+ acc_wait;
+ acc_wait_h_;
+ acc_wait_async;
+ acc_wait_async_h_;
+ acc_wait_all;
+ acc_wait_all_h_;
+ acc_wait_all_async;
+ acc_wait_all_async_h_;
+ acc_init;
+ acc_init_h_;
+ acc_shutdown;
+ acc_shutdown_h_;
+ acc_on_device;
+ acc_on_device_h_;
+ acc_malloc;
+ acc_free;
+ acc_copyin;
+ acc_copyin_32_h_;
+ acc_copyin_64_h_;
+ acc_copyin_array_h_;
+ acc_present_or_copyin;
+ acc_present_or_copyin_32_h_;
+ acc_present_or_copyin_64_h_;
+ acc_present_or_copyin_array_h_;
+ acc_create;
+ acc_create_32_h_;
+ acc_create_64_h_;
+ acc_create_array_h_;
+ acc_present_or_create;
+ acc_present_or_create_32_h_;
+ acc_present_or_create_64_h_;
+ acc_present_or_create_array_h_;
+ acc_copyout;
+ acc_copyout_32_h_;
+ acc_copyout_64_h_;
+ acc_copyout_array_h_;
+ acc_delete;
+ acc_delete_32_h_;
+ acc_delete_64_h_;
+ acc_delete_array_h_;
+ acc_update_device;
+ acc_update_device_32_h_;
+ acc_update_device_64_h_;
+ acc_update_device_array_h_;
+ acc_update_self;
+ acc_update_self_32_h_;
+ acc_update_self_64_h_;
+ acc_update_self_array_h_;
+ acc_map_data;
+ acc_unmap_data;
+ acc_deviceptr;
+ acc_hostptr;
+ acc_is_present;
+ acc_is_present_32_h_;
+ acc_is_present_64_h_;
+ acc_is_present_array_h_;
+ acc_memcpy_to_device;
+ acc_memcpy_from_device;
+ acc_get_current_cuda_device;
+ acc_get_current_cuda_context;
+ acc_get_cuda_stream;
+ acc_set_cuda_stream;
+};
+
+GOACC_2.0 {
+ global:
+ GOACC_data_end;
+ GOACC_data_start;
+ GOACC_enter_exit_data;
+ GOACC_parallel;
+ GOACC_update;
+ GOACC_wait;
+ GOACC_get_thread_num;
+ GOACC_get_num_threads;
+};
+
+GOACC_2.0.1 {
+ global:
+ GOACC_declare;
+ GOACC_parallel_keyed;
+} GOACC_2.0;
+
+GOMP_PLUGIN_1.0 {
+ global:
+ GOMP_PLUGIN_malloc;
+ GOMP_PLUGIN_malloc_cleared;
+ GOMP_PLUGIN_realloc;
+ GOMP_PLUGIN_debug;
+ GOMP_PLUGIN_error;
+ GOMP_PLUGIN_fatal;
+ GOMP_PLUGIN_async_unmap_vars;
+ GOMP_PLUGIN_acc_thread;
+};
+
+GOMP_PLUGIN_1.1 {
+ global:
+ GOMP_PLUGIN_target_task_completion;
+} GOMP_PLUGIN_1.0;
--- libgomp/ordered.c.jj 2013-01-21 16:00:46.137873657 +0100
+++ libgomp/ordered.c 2016-07-13 16:57:18.918355780 +0200
@@ -25,6 +25,9 @@
/* This file handles the ORDERED construct. */
#include "libgomp.h"
+#include <stdarg.h>
+#include <string.h>
+#include "doacross.h"
/* This function is called when first allocating an iteration block. That
@@ -249,3 +252,533 @@ void
GOMP_ordered_end (void)
{
}
+
+/* DOACROSS initialization. */
+
+#define MAX_COLLAPSED_BITS (__SIZEOF_LONG__ * __CHAR_BIT__)
+
+void
+gomp_doacross_init (unsigned ncounts, long *counts, long chunk_size)
+{
+ struct gomp_thread *thr = gomp_thread ();
+ struct gomp_team *team = thr->ts.team;
+ struct gomp_work_share *ws = thr->ts.work_share;
+ unsigned int i, bits[MAX_COLLAPSED_BITS], num_bits = 0;
+ unsigned long ent, num_ents, elt_sz, shift_sz;
+ struct gomp_doacross_work_share *doacross;
+
+ if (team == NULL || team->nthreads == 1)
+ return;
+
+ for (i = 0; i < ncounts; i++)
+ {
+ /* If any count is 0, GOMP_doacross_{post,wait} can't be called. */
+ if (counts[i] == 0)
+ return;
+
+ if (num_bits <= MAX_COLLAPSED_BITS)
+ {
+ unsigned int this_bits;
+ if (counts[i] == 1)
+ this_bits = 1;
+ else
+ this_bits = __SIZEOF_LONG__ * __CHAR_BIT__
+ - __builtin_clzl (counts[i] - 1);
+ if (num_bits + this_bits <= MAX_COLLAPSED_BITS)
+ {
+ bits[i] = this_bits;
+ num_bits += this_bits;
+ }
+ else
+ num_bits = MAX_COLLAPSED_BITS + 1;
+ }
+ }
+
+ if (ws->sched == GFS_STATIC)
+ num_ents = team->nthreads;
+ else if (ws->sched == GFS_GUIDED)
+ num_ents = counts[0];
+ else
+ num_ents = (counts[0] - 1) / chunk_size + 1;
+ if (num_bits <= MAX_COLLAPSED_BITS)
+ {
+ elt_sz = sizeof (unsigned long);
+ shift_sz = ncounts * sizeof (unsigned int);
+ }
+ else
+ {
+ elt_sz = sizeof (unsigned long) * ncounts;
+ shift_sz = 0;
+ }
+ elt_sz = (elt_sz + 63) & ~63UL;
+
+ doacross = gomp_malloc (sizeof (*doacross) + 63 + num_ents * elt_sz
+ + shift_sz);
+ doacross->chunk_size = chunk_size;
+ doacross->elt_sz = elt_sz;
+ doacross->ncounts = ncounts;
+ doacross->flattened = false;
+ doacross->array = (unsigned char *)
+ ((((uintptr_t) (doacross + 1)) + 63 + shift_sz)
+ & ~(uintptr_t) 63);
+ if (num_bits <= MAX_COLLAPSED_BITS)
+ {
+ unsigned int shift_count = 0;
+ doacross->flattened = true;
+ for (i = ncounts; i > 0; i--)
+ {
+ doacross->shift_counts[i - 1] = shift_count;
+ shift_count += bits[i - 1];
+ }
+ for (ent = 0; ent < num_ents; ent++)
+ *(unsigned long *) (doacross->array + ent * elt_sz) = 0;
+ }
+ else
+ for (ent = 0; ent < num_ents; ent++)
+ memset (doacross->array + ent * elt_sz, '\0',
+ sizeof (unsigned long) * ncounts);
+ if (ws->sched == GFS_STATIC && chunk_size == 0)
+ {
+ unsigned long q = counts[0] / num_ents;
+ unsigned long t = counts[0] % num_ents;
+ doacross->boundary = t * (q + 1);
+ doacross->q = q;
+ doacross->t = t;
+ }
+ ws->doacross = doacross;
+}
+
+/* DOACROSS POST operation. */
+
+void
+GOMP_doacross_post (long *counts)
+{
+ struct gomp_thread *thr = gomp_thread ();
+ struct gomp_work_share *ws = thr->ts.work_share;
+ struct gomp_doacross_work_share *doacross = ws->doacross;
+ unsigned long ent;
+ unsigned int i;
+
+ if (__builtin_expect (doacross == NULL, 0))
+ {
+ __sync_synchronize ();
+ return;
+ }
+
+ if (__builtin_expect (ws->sched == GFS_STATIC, 1))
+ ent = thr->ts.team_id;
+ else if (ws->sched == GFS_GUIDED)
+ ent = counts[0];
+ else
+ ent = counts[0] / doacross->chunk_size;
+ unsigned long *array = (unsigned long *) (doacross->array
+ + ent * doacross->elt_sz);
+
+ if (__builtin_expect (doacross->flattened, 1))
+ {
+ unsigned long flattened
+ = (unsigned long) counts[0] << doacross->shift_counts[0];
+
+ for (i = 1; i < doacross->ncounts; i++)
+ flattened |= (unsigned long) counts[i]
+ << doacross->shift_counts[i];
+ flattened++;
+ if (flattened == __atomic_load_n (array, MEMMODEL_ACQUIRE))
+ __atomic_thread_fence (MEMMODEL_RELEASE);
+ else
+ __atomic_store_n (array, flattened, MEMMODEL_RELEASE);
+ return;
+ }
+
+ __atomic_thread_fence (MEMMODEL_ACQUIRE);
+ for (i = doacross->ncounts; i-- > 0; )
+ {
+ if (counts[i] + 1UL != __atomic_load_n (&array[i], MEMMODEL_RELAXED))
+ __atomic_store_n (&array[i], counts[i] + 1UL, MEMMODEL_RELEASE);
+ }
+}
+
+/* DOACROSS WAIT operation. */
+
+void
+GOMP_doacross_wait (long first, ...)
+{
+ struct gomp_thread *thr = gomp_thread ();
+ struct gomp_work_share *ws = thr->ts.work_share;
+ struct gomp_doacross_work_share *doacross = ws->doacross;
+ va_list ap;
+ unsigned long ent;
+ unsigned int i;
+
+ if (__builtin_expect (doacross == NULL, 0))
+ {
+ __sync_synchronize ();
+ return;
+ }
+
+ if (__builtin_expect (ws->sched == GFS_STATIC, 1))
+ {
+ if (ws->chunk_size == 0)
+ {
+ if (first < doacross->boundary)
+ ent = first / (doacross->q + 1);
+ else
+ ent = (first - doacross->boundary) / doacross->q
+ + doacross->t;
+ }
+ else
+ ent = first / ws->chunk_size % thr->ts.team->nthreads;
+ }
+ else if (ws->sched == GFS_GUIDED)
+ ent = first;
+ else
+ ent = first / doacross->chunk_size;
+ unsigned long *array = (unsigned long *) (doacross->array
+ + ent * doacross->elt_sz);
+
+ if (__builtin_expect (doacross->flattened, 1))
+ {
+ unsigned long flattened
+ = (unsigned long) first << doacross->shift_counts[0];
+ unsigned long cur;
+
+ va_start (ap, first);
+ for (i = 1; i < doacross->ncounts; i++)
+ flattened |= (unsigned long) va_arg (ap, long)
+ << doacross->shift_counts[i];
+ cur = __atomic_load_n (array, MEMMODEL_ACQUIRE);
+ if (flattened < cur)
+ {
+ __atomic_thread_fence (MEMMODEL_RELEASE);
+ va_end (ap);
+ return;
+ }
+ doacross_spin (array, flattened, cur);
+ __atomic_thread_fence (MEMMODEL_RELEASE);
+ va_end (ap);
+ return;
+ }
+
+ do
+ {
+ va_start (ap, first);
+ for (i = 0; i < doacross->ncounts; i++)
+ {
+ unsigned long thisv
+ = (unsigned long) (i ? va_arg (ap, long) : first) + 1;
+ unsigned long cur = __atomic_load_n (&array[i], MEMMODEL_RELAXED);
+ if (thisv < cur)
+ {
+ i = doacross->ncounts;
+ break;
+ }
+ if (thisv > cur)
+ break;
+ }
+ va_end (ap);
+ if (i == doacross->ncounts)
+ break;
+ cpu_relax ();
+ }
+ while (1);
+ __sync_synchronize ();
+}
+
+typedef unsigned long long gomp_ull;
+
+void
+gomp_doacross_ull_init (unsigned ncounts, gomp_ull *counts, gomp_ull chunk_size)
+{
+ struct gomp_thread *thr = gomp_thread ();
+ struct gomp_team *team = thr->ts.team;
+ struct gomp_work_share *ws = thr->ts.work_share;
+ unsigned int i, bits[MAX_COLLAPSED_BITS], num_bits = 0;
+ unsigned long ent, num_ents, elt_sz, shift_sz;
+ struct gomp_doacross_work_share *doacross;
+
+ if (team == NULL || team->nthreads == 1)
+ return;
+
+ for (i = 0; i < ncounts; i++)
+ {
+ /* If any count is 0, GOMP_doacross_{post,wait} can't be called. */
+ if (counts[i] == 0)
+ return;
+
+ if (num_bits <= MAX_COLLAPSED_BITS)
+ {
+ unsigned int this_bits;
+ if (counts[i] == 1)
+ this_bits = 1;
+ else
+ this_bits = __SIZEOF_LONG_LONG__ * __CHAR_BIT__
+ - __builtin_clzll (counts[i] - 1);
+ if (num_bits + this_bits <= MAX_COLLAPSED_BITS)
+ {
+ bits[i] = this_bits;
+ num_bits += this_bits;
+ }
+ else
+ num_bits = MAX_COLLAPSED_BITS + 1;
+ }
+ }
+
+ if (ws->sched == GFS_STATIC)
+ num_ents = team->nthreads;
+ else if (ws->sched == GFS_GUIDED)
+ num_ents = counts[0];
+ else
+ num_ents = (counts[0] - 1) / chunk_size + 1;
+ if (num_bits <= MAX_COLLAPSED_BITS)
+ {
+ elt_sz = sizeof (unsigned long);
+ shift_sz = ncounts * sizeof (unsigned int);
+ }
+ else
+ {
+ if (sizeof (gomp_ull) == sizeof (unsigned long))
+ elt_sz = sizeof (gomp_ull) * ncounts;
+ else if (sizeof (gomp_ull) == 2 * sizeof (unsigned long))
+ elt_sz = sizeof (unsigned long) * 2 * ncounts;
+ else
+ abort ();
+ shift_sz = 0;
+ }
+ elt_sz = (elt_sz + 63) & ~63UL;
+
+ doacross = gomp_malloc (sizeof (*doacross) + 63 + num_ents * elt_sz
+ + shift_sz);
+ doacross->chunk_size_ull = chunk_size;
+ doacross->elt_sz = elt_sz;
+ doacross->ncounts = ncounts;
+ doacross->flattened = false;
+ doacross->boundary = 0;
+ doacross->array = (unsigned char *)
+ ((((uintptr_t) (doacross + 1)) + 63 + shift_sz)
+ & ~(uintptr_t) 63);
+ if (num_bits <= MAX_COLLAPSED_BITS)
+ {
+ unsigned int shift_count = 0;
+ doacross->flattened = true;
+ for (i = ncounts; i > 0; i--)
+ {
+ doacross->shift_counts[i - 1] = shift_count;
+ shift_count += bits[i - 1];
+ }
+ for (ent = 0; ent < num_ents; ent++)
+ *(unsigned long *) (doacross->array + ent * elt_sz) = 0;
+ }
+ else
+ for (ent = 0; ent < num_ents; ent++)
+ memset (doacross->array + ent * elt_sz, '\0',
+ sizeof (unsigned long) * ncounts);
+ if (ws->sched == GFS_STATIC && chunk_size == 0)
+ {
+ gomp_ull q = counts[0] / num_ents;
+ gomp_ull t = counts[0] % num_ents;
+ doacross->boundary_ull = t * (q + 1);
+ doacross->q_ull = q;
+ doacross->t = t;
+ }
+ ws->doacross = doacross;
+}
+
+/* DOACROSS POST operation. */
+
+void
+GOMP_doacross_ull_post (gomp_ull *counts)
+{
+ struct gomp_thread *thr = gomp_thread ();
+ struct gomp_work_share *ws = thr->ts.work_share;
+ struct gomp_doacross_work_share *doacross = ws->doacross;
+ unsigned long ent;
+ unsigned int i;
+
+ if (__builtin_expect (doacross == NULL, 0))
+ {
+ __sync_synchronize ();
+ return;
+ }
+
+ if (__builtin_expect (ws->sched == GFS_STATIC, 1))
+ ent = thr->ts.team_id;
+ else if (ws->sched == GFS_GUIDED)
+ ent = counts[0];
+ else
+ ent = counts[0] / doacross->chunk_size_ull;
+
+ if (__builtin_expect (doacross->flattened, 1))
+ {
+ unsigned long *array = (unsigned long *) (doacross->array
+ + ent * doacross->elt_sz);
+ gomp_ull flattened
+ = counts[0] << doacross->shift_counts[0];
+
+ for (i = 1; i < doacross->ncounts; i++)
+ flattened |= counts[i] << doacross->shift_counts[i];
+ flattened++;
+ if (flattened == __atomic_load_n (array, MEMMODEL_ACQUIRE))
+ __atomic_thread_fence (MEMMODEL_RELEASE);
+ else
+ __atomic_store_n (array, flattened, MEMMODEL_RELEASE);
+ return;
+ }
+
+ __atomic_thread_fence (MEMMODEL_ACQUIRE);
+ if (sizeof (gomp_ull) == sizeof (unsigned long))
+ {
+ gomp_ull *array = (gomp_ull *) (doacross->array
+ + ent * doacross->elt_sz);
+
+ for (i = doacross->ncounts; i-- > 0; )
+ {
+ if (counts[i] + 1UL != __atomic_load_n (&array[i], MEMMODEL_RELAXED))
+ __atomic_store_n (&array[i], counts[i] + 1UL, MEMMODEL_RELEASE);
+ }
+ }
+ else
+ {
+ unsigned long *array = (unsigned long *) (doacross->array
+ + ent * doacross->elt_sz);
+
+ for (i = doacross->ncounts; i-- > 0; )
+ {
+ gomp_ull cull = counts[i] + 1UL;
+ unsigned long c = (unsigned long) cull;
+ if (c != __atomic_load_n (&array[2 * i + 1], MEMMODEL_RELAXED))
+ __atomic_store_n (&array[2 * i + 1], c, MEMMODEL_RELEASE);
+ c = cull >> (__SIZEOF_LONG_LONG__ * __CHAR_BIT__ / 2);
+ if (c != __atomic_load_n (&array[2 * i], MEMMODEL_RELAXED))
+ __atomic_store_n (&array[2 * i], c, MEMMODEL_RELEASE);
+ }
+ }
+}
+
+/* DOACROSS WAIT operation. */
+
+void
+GOMP_doacross_ull_wait (gomp_ull first, ...)
+{
+ struct gomp_thread *thr = gomp_thread ();
+ struct gomp_work_share *ws = thr->ts.work_share;
+ struct gomp_doacross_work_share *doacross = ws->doacross;
+ va_list ap;
+ unsigned long ent;
+ unsigned int i;
+
+ if (__builtin_expect (doacross == NULL, 0))
+ {
+ __sync_synchronize ();
+ return;
+ }
+
+ if (__builtin_expect (ws->sched == GFS_STATIC, 1))
+ {
+ if (ws->chunk_size_ull == 0)
+ {
+ if (first < doacross->boundary_ull)
+ ent = first / (doacross->q_ull + 1);
+ else
+ ent = (first - doacross->boundary_ull) / doacross->q_ull
+ + doacross->t;
+ }
+ else
+ ent = first / ws->chunk_size_ull % thr->ts.team->nthreads;
+ }
+ else if (ws->sched == GFS_GUIDED)
+ ent = first;
+ else
+ ent = first / doacross->chunk_size_ull;
+
+ if (__builtin_expect (doacross->flattened, 1))
+ {
+ unsigned long *array = (unsigned long *) (doacross->array
+ + ent * doacross->elt_sz);
+ gomp_ull flattened = first << doacross->shift_counts[0];
+ unsigned long cur;
+
+ va_start (ap, first);
+ for (i = 1; i < doacross->ncounts; i++)
+ flattened |= va_arg (ap, gomp_ull)
+ << doacross->shift_counts[i];
+ cur = __atomic_load_n (array, MEMMODEL_ACQUIRE);
+ if (flattened < cur)
+ {
+ __atomic_thread_fence (MEMMODEL_RELEASE);
+ va_end (ap);
+ return;
+ }
+ doacross_spin (array, flattened, cur);
+ __atomic_thread_fence (MEMMODEL_RELEASE);
+ va_end (ap);
+ return;
+ }
+
+ if (sizeof (gomp_ull) == sizeof (unsigned long))
+ {
+ gomp_ull *array = (gomp_ull *) (doacross->array
+ + ent * doacross->elt_sz);
+ do
+ {
+ va_start (ap, first);
+ for (i = 0; i < doacross->ncounts; i++)
+ {
+ gomp_ull thisv
+ = (i ? va_arg (ap, gomp_ull) : first) + 1;
+ gomp_ull cur = __atomic_load_n (&array[i], MEMMODEL_RELAXED);
+ if (thisv < cur)
+ {
+ i = doacross->ncounts;
+ break;
+ }
+ if (thisv > cur)
+ break;
+ }
+ va_end (ap);
+ if (i == doacross->ncounts)
+ break;
+ cpu_relax ();
+ }
+ while (1);
+ }
+ else
+ {
+ unsigned long *array = (unsigned long *) (doacross->array
+ + ent * doacross->elt_sz);
+ do
+ {
+ va_start (ap, first);
+ for (i = 0; i < doacross->ncounts; i++)
+ {
+ gomp_ull thisv
+ = (i ? va_arg (ap, gomp_ull) : first) + 1;
+ unsigned long t
+ = thisv >> (__SIZEOF_LONG_LONG__ * __CHAR_BIT__ / 2);
+ unsigned long cur
+ = __atomic_load_n (&array[2 * i], MEMMODEL_RELAXED);
+ if (t < cur)
+ {
+ i = doacross->ncounts;
+ break;
+ }
+ if (t > cur)
+ break;
+ t = thisv;
+ cur = __atomic_load_n (&array[2 * i + 1], MEMMODEL_RELAXED);
+ if (t < cur)
+ {
+ i = doacross->ncounts;
+ break;
+ }
+ if (t > cur)
+ break;
+ }
+ va_end (ap);
+ if (i == doacross->ncounts)
+ break;
+ cpu_relax ();
+ }
+ while (1);
+ }
+ __sync_synchronize ();
+}
--- libgomp/loop.c.jj 2014-05-15 10:56:36.487505570 +0200
+++ libgomp/loop.c 2016-07-13 16:57:13.488423109 +0200
@@ -110,6 +110,11 @@ gomp_loop_static_start (long start, long
return !gomp_iter_static_next (istart, iend);
}
+/* The current dynamic implementation is always monotonic. The
+ entrypoints without nonmonotonic in them have to be always monotonic,
+ but the nonmonotonic ones could be changed to use work-stealing for
+ improved scalability. */
+
static bool
gomp_loop_dynamic_start (long start, long end, long incr, long chunk_size,
long *istart, long *iend)
@@ -135,6 +140,9 @@ gomp_loop_dynamic_start (long start, lon
return ret;
}
+/* Similarly as for dynamic, though the question is how can the chunk sizes
+ be decreased without a central locking or atomics. */
+
static bool
gomp_loop_guided_start (long start, long end, long incr, long chunk_size,
long *istart, long *iend)
@@ -168,13 +176,16 @@ GOMP_loop_runtime_start (long start, lon
switch (icv->run_sched_var)
{
case GFS_STATIC:
- return gomp_loop_static_start (start, end, incr, icv->run_sched_modifier,
+ return gomp_loop_static_start (start, end, incr,
+ icv->run_sched_chunk_size,
istart, iend);
case GFS_DYNAMIC:
- return gomp_loop_dynamic_start (start, end, incr, icv->run_sched_modifier,
+ return gomp_loop_dynamic_start (start, end, incr,
+ icv->run_sched_chunk_size,
istart, iend);
case GFS_GUIDED:
- return gomp_loop_guided_start (start, end, incr, icv->run_sched_modifier,
+ return gomp_loop_guided_start (start, end, incr,
+ icv->run_sched_chunk_size,
istart, iend);
case GFS_AUTO:
/* For now map to schedule(static), later on we could play with feedback
@@ -265,15 +276,15 @@ GOMP_loop_ordered_runtime_start (long st
{
case GFS_STATIC:
return gomp_loop_ordered_static_start (start, end, incr,
- icv->run_sched_modifier,
+ icv->run_sched_chunk_size,
istart, iend);
case GFS_DYNAMIC:
return gomp_loop_ordered_dynamic_start (start, end, incr,
- icv->run_sched_modifier,
+ icv->run_sched_chunk_size,
istart, iend);
case GFS_GUIDED:
return gomp_loop_ordered_guided_start (start, end, incr,
- icv->run_sched_modifier,
+ icv->run_sched_chunk_size,
istart, iend);
case GFS_AUTO:
/* For now map to schedule(static), later on we could play with feedback
@@ -285,6 +296,111 @@ GOMP_loop_ordered_runtime_start (long st
}
}
+/* The *_doacross_*_start routines are similar. The only difference is that
+ this work-share construct is initialized to expect an ORDERED(N) - DOACROSS
+ section, and the worksharing loop iterates always from 0 to COUNTS[0] - 1
+ and other COUNTS array elements tell the library number of iterations
+ in the ordered inner loops. */
+
+static bool
+gomp_loop_doacross_static_start (unsigned ncounts, long *counts,
+ long chunk_size, long *istart, long *iend)
+{
+ struct gomp_thread *thr = gomp_thread ();
+
+ thr->ts.static_trip = 0;
+ if (gomp_work_share_start (false))
+ {
+ gomp_loop_init (thr->ts.work_share, 0, counts[0], 1,
+ GFS_STATIC, chunk_size);
+ gomp_doacross_init (ncounts, counts, chunk_size);
+ gomp_work_share_init_done ();
+ }
+
+ return !gomp_iter_static_next (istart, iend);
+}
+
+static bool
+gomp_loop_doacross_dynamic_start (unsigned ncounts, long *counts,
+ long chunk_size, long *istart, long *iend)
+{
+ struct gomp_thread *thr = gomp_thread ();
+ bool ret;
+
+ if (gomp_work_share_start (false))
+ {
+ gomp_loop_init (thr->ts.work_share, 0, counts[0], 1,
+ GFS_DYNAMIC, chunk_size);
+ gomp_doacross_init (ncounts, counts, chunk_size);
+ gomp_work_share_init_done ();
+ }
+
+#ifdef HAVE_SYNC_BUILTINS
+ ret = gomp_iter_dynamic_next (istart, iend);
+#else
+ gomp_mutex_lock (&thr->ts.work_share->lock);
+ ret = gomp_iter_dynamic_next_locked (istart, iend);
+ gomp_mutex_unlock (&thr->ts.work_share->lock);
+#endif
+
+ return ret;
+}
+
+static bool
+gomp_loop_doacross_guided_start (unsigned ncounts, long *counts,
+ long chunk_size, long *istart, long *iend)
+{
+ struct gomp_thread *thr = gomp_thread ();
+ bool ret;
+
+ if (gomp_work_share_start (false))
+ {
+ gomp_loop_init (thr->ts.work_share, 0, counts[0], 1,
+ GFS_GUIDED, chunk_size);
+ gomp_doacross_init (ncounts, counts, chunk_size);
+ gomp_work_share_init_done ();
+ }
+
+#ifdef HAVE_SYNC_BUILTINS
+ ret = gomp_iter_guided_next (istart, iend);
+#else
+ gomp_mutex_lock (&thr->ts.work_share->lock);
+ ret = gomp_iter_guided_next_locked (istart, iend);
+ gomp_mutex_unlock (&thr->ts.work_share->lock);
+#endif
+
+ return ret;
+}
+
+bool
+GOMP_loop_doacross_runtime_start (unsigned ncounts, long *counts,
+ long *istart, long *iend)
+{
+ struct gomp_task_icv *icv = gomp_icv (false);
+ switch (icv->run_sched_var)
+ {
+ case GFS_STATIC:
+ return gomp_loop_doacross_static_start (ncounts, counts,
+ icv->run_sched_chunk_size,
+ istart, iend);
+ case GFS_DYNAMIC:
+ return gomp_loop_doacross_dynamic_start (ncounts, counts,
+ icv->run_sched_chunk_size,
+ istart, iend);
+ case GFS_GUIDED:
+ return gomp_loop_doacross_guided_start (ncounts, counts,
+ icv->run_sched_chunk_size,
+ istart, iend);
+ case GFS_AUTO:
+ /* For now map to schedule(static), later on we could play with feedback
+ driven choice. */
+ return gomp_loop_doacross_static_start (ncounts, counts,
+ 0, istart, iend);
+ default:
+ abort ();
+ }
+}
+
/* The *_next routines are called when the thread completes processing of
the iteration block currently assigned to it. If the work-share
construct is bound directly to a parallel construct, then the iteration
@@ -483,7 +599,7 @@ GOMP_parallel_loop_runtime_start (void (
{
struct gomp_task_icv *icv = gomp_icv (false);
gomp_parallel_loop_start (fn, data, num_threads, start, end, incr,
- icv->run_sched_var, icv->run_sched_modifier, 0);
+ icv->run_sched_var, icv->run_sched_chunk_size, 0);
}
ialias_redirect (GOMP_parallel_end)
@@ -521,6 +637,37 @@ GOMP_parallel_loop_guided (void (*fn) (v
GOMP_parallel_end ();
}
+#ifdef HAVE_ATTRIBUTE_ALIAS
+extern __typeof(GOMP_parallel_loop_dynamic) GOMP_parallel_loop_nonmonotonic_dynamic
+ __attribute__((alias ("GOMP_parallel_loop_dynamic")));
+extern __typeof(GOMP_parallel_loop_guided) GOMP_parallel_loop_nonmonotonic_guided
+ __attribute__((alias ("GOMP_parallel_loop_guided")));
+#else
+void
+GOMP_parallel_loop_nonmonotonic_dynamic (void (*fn) (void *), void *data,
+ unsigned num_threads, long start,
+ long end, long incr, long chunk_size,
+ unsigned flags)
+{
+ gomp_parallel_loop_start (fn, data, num_threads, start, end, incr,
+ GFS_DYNAMIC, chunk_size, flags);
+ fn (data);
+ GOMP_parallel_end ();
+}
+
+void
+GOMP_parallel_loop_nonmonotonic_guided (void (*fn) (void *), void *data,
+ unsigned num_threads, long start,
+ long end, long incr, long chunk_size,
+ unsigned flags)
+{
+ gomp_parallel_loop_start (fn, data, num_threads, start, end, incr,
+ GFS_GUIDED, chunk_size, flags);
+ fn (data);
+ GOMP_parallel_end ();
+}
+#endif
+
void
GOMP_parallel_loop_runtime (void (*fn) (void *), void *data,
unsigned num_threads, long start, long end,
@@ -528,7 +675,7 @@ GOMP_parallel_loop_runtime (void (*fn) (
{
struct gomp_task_icv *icv = gomp_icv (false);
gomp_parallel_loop_start (fn, data, num_threads, start, end, incr,
- icv->run_sched_var, icv->run_sched_modifier,
+ icv->run_sched_var, icv->run_sched_chunk_size,
flags);
fn (data);
GOMP_parallel_end ();
@@ -569,6 +716,10 @@ extern __typeof(gomp_loop_dynamic_start)
__attribute__((alias ("gomp_loop_dynamic_start")));
extern __typeof(gomp_loop_guided_start) GOMP_loop_guided_start
__attribute__((alias ("gomp_loop_guided_start")));
+extern __typeof(gomp_loop_dynamic_start) GOMP_loop_nonmonotonic_dynamic_start
+ __attribute__((alias ("gomp_loop_dynamic_start")));
+extern __typeof(gomp_loop_guided_start) GOMP_loop_nonmonotonic_guided_start
+ __attribute__((alias ("gomp_loop_guided_start")));
extern __typeof(gomp_loop_ordered_static_start) GOMP_loop_ordered_static_start
__attribute__((alias ("gomp_loop_ordered_static_start")));
@@ -577,12 +728,23 @@ extern __typeof(gomp_loop_ordered_dynami
extern __typeof(gomp_loop_ordered_guided_start) GOMP_loop_ordered_guided_start
__attribute__((alias ("gomp_loop_ordered_guided_start")));
+extern __typeof(gomp_loop_doacross_static_start) GOMP_loop_doacross_static_start
+ __attribute__((alias ("gomp_loop_doacross_static_start")));
+extern __typeof(gomp_loop_doacross_dynamic_start) GOMP_loop_doacross_dynamic_start
+ __attribute__((alias ("gomp_loop_doacross_dynamic_start")));
+extern __typeof(gomp_loop_doacross_guided_start) GOMP_loop_doacross_guided_start
+ __attribute__((alias ("gomp_loop_doacross_guided_start")));
+
extern __typeof(gomp_loop_static_next) GOMP_loop_static_next
__attribute__((alias ("gomp_loop_static_next")));
extern __typeof(gomp_loop_dynamic_next) GOMP_loop_dynamic_next
__attribute__((alias ("gomp_loop_dynamic_next")));
extern __typeof(gomp_loop_guided_next) GOMP_loop_guided_next
__attribute__((alias ("gomp_loop_guided_next")));
+extern __typeof(gomp_loop_dynamic_next) GOMP_loop_nonmonotonic_dynamic_next
+ __attribute__((alias ("gomp_loop_dynamic_next")));
+extern __typeof(gomp_loop_guided_next) GOMP_loop_nonmonotonic_guided_next
+ __attribute__((alias ("gomp_loop_guided_next")));
extern __typeof(gomp_loop_ordered_static_next) GOMP_loop_ordered_static_next
__attribute__((alias ("gomp_loop_ordered_static_next")));
@@ -613,6 +775,21 @@ GOMP_loop_guided_start (long start, long
}
bool
+GOMP_loop_nonmonotonic_dynamic_start (long start, long end, long incr,
+ long chunk_size, long *istart,
+ long *iend)
+{
+ return gomp_loop_dynamic_start (start, end, incr, chunk_size, istart, iend);
+}
+
+bool
+GOMP_loop_nonmonotonic_guided_start (long start, long end, long incr,
+ long chunk_size, long *istart, long *iend)
+{
+ return gomp_loop_guided_start (start, end, incr, chunk_size, istart, iend);
+}
+
+bool
GOMP_loop_ordered_static_start (long start, long end, long incr,
long chunk_size, long *istart, long *iend)
{
@@ -637,6 +814,30 @@ GOMP_loop_ordered_guided_start (long sta
}
bool
+GOMP_loop_doacross_static_start (unsigned ncounts, long *counts,
+ long chunk_size, long *istart, long *iend)
+{
+ return gomp_loop_doacross_static_start (ncounts, counts, chunk_size,
+ istart, iend);
+}
+
+bool
+GOMP_loop_doacross_dynamic_start (unsigned ncounts, long *counts,
+ long chunk_size, long *istart, long *iend)
+{
+ return gomp_loop_doacross_dynamic_start (ncounts, counts, chunk_size,
+ istart, iend);
+}
+
+bool
+GOMP_loop_doacross_guided_start (unsigned ncounts, long *counts,
+ long chunk_size, long *istart, long *iend)
+{
+ return gomp_loop_doacross_guided_start (ncounts, counts, chunk_size,
+ istart, iend);
+}
+
+bool
GOMP_loop_static_next (long *istart, long *iend)
{
return gomp_loop_static_next (istart, iend);
@@ -653,6 +854,18 @@ GOMP_loop_guided_next (long *istart, lon
{
return gomp_loop_guided_next (istart, iend);
}
+
+bool
+GOMP_loop_nonmonotonic_dynamic_next (long *istart, long *iend)
+{
+ return gomp_loop_dynamic_next (istart, iend);
+}
+
+bool
+GOMP_loop_nonmonotonic_guided_next (long *istart, long *iend)
+{
+ return gomp_loop_guided_next (istart, iend);
+}
bool
GOMP_loop_ordered_static_next (long *istart, long *iend)
--- libgomp/error.c.jj 2013-01-21 16:00:31.834953566 +0100
+++ libgomp/error.c 2016-07-13 16:57:04.437535335 +0200
@@ -35,7 +35,26 @@
#include <stdlib.h>
-static void
+#undef gomp_vdebug
+void
+gomp_vdebug (int kind __attribute__ ((unused)), const char *msg, va_list list)
+{
+ if (gomp_debug_var)
+ vfprintf (stderr, msg, list);
+}
+
+#undef gomp_debug
+void
+gomp_debug (int kind, const char *msg, ...)
+{
+ va_list list;
+
+ va_start (list, msg);
+ gomp_vdebug (kind, msg, list);
+ va_end (list);
+}
+
+void
gomp_verror (const char *fmt, va_list list)
{
fputs ("\nlibgomp: ", stderr);
@@ -54,13 +73,18 @@ gomp_error (const char *fmt, ...)
}
void
+gomp_vfatal (const char *fmt, va_list list)
+{
+ gomp_verror (fmt, list);
+ exit (EXIT_FAILURE);
+}
+
+void
gomp_fatal (const char *fmt, ...)
{
va_list list;
va_start (list, fmt);
- gomp_verror (fmt, list);
+ gomp_vfatal (fmt, list);
va_end (list);
-
- exit (EXIT_FAILURE);
}
--- libgomp/Makefile.am.jj 2014-05-15 11:12:10.000000000 +0200
+++ libgomp/Makefile.am 2016-07-14 16:10:51.968202878 +0200
@@ -60,7 +60,13 @@ libgomp_la_LINK = $(LINK) $(libgomp_la_L
libgomp_la_SOURCES = alloc.c barrier.c critical.c env.c error.c iter.c \
iter_ull.c loop.c loop_ull.c ordered.c parallel.c sections.c single.c \
task.c team.c work.c lock.c mutex.c proc.c sem.c bar.c ptrlock.c \
- time.c fortran.c affinity.c target.c
+ time.c fortran.c affinity.c target.c splay-tree.c libgomp-plugin.c \
+ oacc-parallel.c oacc-host.c oacc-init.c oacc-mem.c oacc-async.c \
+ oacc-plugin.c oacc-cuda.c priority_queue.c
+
+if USE_FORTRAN
+libgomp_la_SOURCES += openacc.f90
+endif
nodist_noinst_HEADERS = libgomp_f.h
nodist_libsubinclude_HEADERS = omp.h
--- libgomp/Makefile.in.jj 2014-05-15 11:12:10.000000000 +0200
+++ libgomp/Makefile.in 2016-07-14 16:11:10.981954087 +0200
@@ -36,6 +36,7 @@ POST_UNINSTALL = :
build_triplet = @build@
host_triplet = @host@
target_triplet = @target@
+@USE_FORTRAN_TRUE@am__append_1 = openacc.f90
subdir = .
DIST_COMMON = ChangeLog $(srcdir)/Makefile.in $(srcdir)/Makefile.am \
$(top_srcdir)/configure $(am__configure_deps) \
@@ -92,11 +93,15 @@ am__installdirs = "$(DESTDIR)$(toolexecl
"$(DESTDIR)$(toolexeclibdir)"
LTLIBRARIES = $(toolexeclib_LTLIBRARIES)
libgomp_la_LIBADD =
+@USE_FORTRAN_TRUE@am__objects_1 = openacc.lo
am_libgomp_la_OBJECTS = alloc.lo barrier.lo critical.lo env.lo \
error.lo iter.lo iter_ull.lo loop.lo loop_ull.lo ordered.lo \
parallel.lo sections.lo single.lo task.lo team.lo work.lo \
lock.lo mutex.lo proc.lo sem.lo bar.lo ptrlock.lo time.lo \
- fortran.lo affinity.lo target.lo
+ fortran.lo affinity.lo target.lo splay-tree.lo \
+ libgomp-plugin.lo oacc-parallel.lo oacc-host.lo oacc-init.lo \
+ oacc-mem.lo oacc-async.lo oacc-plugin.lo oacc-cuda.lo \
+ priority_queue.lo $(am__objects_1)
libgomp_la_OBJECTS = $(am_libgomp_la_OBJECTS)
DEFAULT_INCLUDES = -I.@am__isrc@
depcomp = $(SHELL) $(top_srcdir)/../depcomp
@@ -108,6 +113,13 @@ LTCOMPILE = $(LIBTOOL) --tag=CC $(AM_LIB
--mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) \
$(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
CCLD = $(CC)
+FCCOMPILE = $(FC) $(AM_FCFLAGS) $(FCFLAGS)
+LTFCCOMPILE = $(LIBTOOL) --tag=FC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
+ --mode=compile $(FC) $(AM_FCFLAGS) $(FCFLAGS)
+FCLD = $(FC)
+FCLINK = $(LIBTOOL) --tag=FC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
+ --mode=link $(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) \
+ $(LDFLAGS) -o $@
SOURCES = $(libgomp_la_SOURCES)
MULTISRCTOP =
MULTIBUILDTOP =
@@ -315,10 +327,12 @@ libgomp_la_LDFLAGS = $(libgomp_version_i
libgomp_la_DEPENDENCIES = $(libgomp_version_dep)
libgomp_la_LINK = $(LINK) $(libgomp_la_LDFLAGS)
libgomp_la_SOURCES = alloc.c barrier.c critical.c env.c error.c iter.c \
- iter_ull.c loop.c loop_ull.c ordered.c parallel.c sections.c single.c \
- task.c team.c work.c lock.c mutex.c proc.c sem.c bar.c ptrlock.c \
- time.c fortran.c affinity.c target.c
-
+ iter_ull.c loop.c loop_ull.c ordered.c parallel.c sections.c \
+ single.c task.c team.c work.c lock.c mutex.c proc.c sem.c \
+ bar.c ptrlock.c time.c fortran.c affinity.c target.c \
+ splay-tree.c libgomp-plugin.c oacc-parallel.c oacc-host.c \
+ oacc-init.c oacc-mem.c oacc-async.c oacc-plugin.c oacc-cuda.c \
+ priority_queue.c $(am__append_1)
nodist_noinst_HEADERS = libgomp_f.h
nodist_libsubinclude_HEADERS = omp.h
@USE_FORTRAN_TRUE@nodist_finclude_HEADERS = omp_lib.h omp_lib.f90 omp_lib.mod omp_lib_kinds.mod
@@ -351,7 +365,7 @@ all: config.h
$(MAKE) $(AM_MAKEFLAGS) all-recursive
.SUFFIXES:
-.SUFFIXES: .c .dvi .lo .o .obj .ps
+.SUFFIXES: .c .dvi .f90 .lo .o .obj .ps
am--refresh:
@:
$(srcdir)/Makefile.in: @MAINTAINER_MODE_TRUE@ $(srcdir)/Makefile.am $(am__configure_deps)
@@ -463,17 +477,27 @@ distclean-compile:
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/fortran.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/iter.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/iter_ull.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libgomp-plugin.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/lock.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/loop.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/loop_ull.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/mutex.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/oacc-async.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/oacc-cuda.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/oacc-host.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/oacc-init.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/oacc-mem.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/oacc-parallel.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/oacc-plugin.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/ordered.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/parallel.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/priority_queue.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/proc.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/ptrlock.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/sections.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/sem.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/single.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/splay-tree.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/target.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/task.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/team.Plo@am__quote@
@@ -501,6 +525,15 @@ distclean-compile:
@AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
@am__fastdepCC_FALSE@ $(LTCOMPILE) -c -o $@ $<
+.f90.o:
+ $(FCCOMPILE) -c -o $@ $<
+
+.f90.obj:
+ $(FCCOMPILE) -c -o $@ `$(CYGPATH_W) '$<'`
+
+.f90.lo:
+ $(LTFCCOMPILE) -c -o $@ $<
+
mostlyclean-libtool:
-rm -f *.lo
--- libgomp/task.c.jj 2014-08-06 16:25:16.575091658 +0200
+++ libgomp/task.c 2016-07-13 17:47:58.722758497 +0200
@@ -28,6 +28,7 @@
#include "libgomp.h"
#include <stdlib.h>
#include <string.h>
+#include "gomp-constants.h"
typedef struct gomp_task_depend_entry *hash_entry_type;
@@ -63,6 +64,14 @@ void
gomp_init_task (struct gomp_task *task, struct gomp_task *parent_task,
struct gomp_task_icv *prev_icv)
{
+ /* It would seem that using memset here would be a win, but it turns
+ out that partially filling gomp_task allows us to keep the
+ overhead of task creation low. In the nqueens-1.c test, for a
+ sufficiently large N, we drop the overhead from 5-6% to 1%.
+
+ Note, the nqueens-1.c test in serial mode is a good test to
+ benchmark the overhead of creating tasks as there are millions of
+ tiny tasks created that all run undeferred. */
task->parent = parent_task;
task->icv = *prev_icv;
task->kind = GOMP_TASK_IMPLICIT;
@@ -71,7 +80,7 @@ gomp_init_task (struct gomp_task *task,
task->final_task = false;
task->copy_ctors_done = false;
task->parent_depends_on = false;
- task->children = NULL;
+ priority_queue_init (&task->children_queue);
task->taskgroup = NULL;
task->dependers = NULL;
task->depend_hash = NULL;
@@ -90,30 +99,194 @@ gomp_end_task (void)
thr->task = task->parent;
}
+/* Clear the parent field of every task in LIST. */
+
static inline void
-gomp_clear_parent (struct gomp_task *children)
+gomp_clear_parent_in_list (struct priority_list *list)
{
- struct gomp_task *task = children;
-
- if (task)
+ struct priority_node *p = list->tasks;
+ if (p)
do
{
- task->parent = NULL;
- task = task->next_child;
+ priority_node_to_task (PQ_CHILDREN, p)->parent = NULL;
+ p = p->next;
}
- while (task != children);
+ while (p != list->tasks);
+}
+
+/* Splay tree version of gomp_clear_parent_in_list.
+
+ Clear the parent field of every task in NODE within SP, and free
+ the node when done. */
+
+static void
+gomp_clear_parent_in_tree (prio_splay_tree sp, prio_splay_tree_node node)
+{
+ if (!node)
+ return;
+ prio_splay_tree_node left = node->left, right = node->right;
+ gomp_clear_parent_in_list (&node->key.l);
+#if _LIBGOMP_CHECKING_
+ memset (node, 0xaf, sizeof (*node));
+#endif
+ /* No need to remove the node from the tree. We're nuking
+ everything, so just free the nodes and our caller can clear the
+ entire splay tree. */
+ free (node);
+ gomp_clear_parent_in_tree (sp, left);
+ gomp_clear_parent_in_tree (sp, right);
+}
+
+/* Clear the parent field of every task in Q and remove every task
+ from Q. */
+
+static inline void
+gomp_clear_parent (struct priority_queue *q)
+{
+ if (priority_queue_multi_p (q))
+ {
+ gomp_clear_parent_in_tree (&q->t, q->t.root);
+ /* All the nodes have been cleared in gomp_clear_parent_in_tree.
+ No need to remove anything. We can just nuke everything. */
+ q->t.root = NULL;
+ }
+ else
+ gomp_clear_parent_in_list (&q->l);
}
-static void gomp_task_maybe_wait_for_dependencies (void **depend);
+/* Helper function for GOMP_task and gomp_create_target_task.
+
+ For a TASK with in/out dependencies, fill in the various dependency
+ queues. PARENT is the parent of said task. DEPEND is as in
+ GOMP_task. */
+
+static void
+gomp_task_handle_depend (struct gomp_task *task, struct gomp_task *parent,
+ void **depend)
+{
+ size_t ndepend = (uintptr_t) depend[0];
+ size_t nout = (uintptr_t) depend[1];
+ size_t i;
+ hash_entry_type ent;
+
+ task->depend_count = ndepend;
+ task->num_dependees = 0;
+ if (parent->depend_hash == NULL)
+ parent->depend_hash = htab_create (2 * ndepend > 12 ? 2 * ndepend : 12);
+ for (i = 0; i < ndepend; i++)
+ {
+ task->depend[i].addr = depend[2 + i];
+ task->depend[i].next = NULL;
+ task->depend[i].prev = NULL;
+ task->depend[i].task = task;
+ task->depend[i].is_in = i >= nout;
+ task->depend[i].redundant = false;
+ task->depend[i].redundant_out = false;
+
+ hash_entry_type *slot = htab_find_slot (&parent->depend_hash,
+ &task->depend[i], INSERT);
+ hash_entry_type out = NULL, last = NULL;
+ if (*slot)
+ {
+ /* If multiple depends on the same task are the same, all but the
+ first one are redundant. As inout/out come first, if any of them
+ is inout/out, it will win, which is the right semantics. */
+ if ((*slot)->task == task)
+ {
+ task->depend[i].redundant = true;
+ continue;
+ }
+ for (ent = *slot; ent; ent = ent->next)
+ {
+ if (ent->redundant_out)
+ break;
+
+ last = ent;
+
+ /* depend(in:...) doesn't depend on earlier depend(in:...). */
+ if (i >= nout && ent->is_in)
+ continue;
+
+ if (!ent->is_in)
+ out = ent;
+
+ struct gomp_task *tsk = ent->task;
+ if (tsk->dependers == NULL)
+ {
+ tsk->dependers
+ = gomp_malloc (sizeof (struct gomp_dependers_vec)
+ + 6 * sizeof (struct gomp_task *));
+ tsk->dependers->n_elem = 1;
+ tsk->dependers->allocated = 6;
+ tsk->dependers->elem[0] = task;
+ task->num_dependees++;
+ continue;
+ }
+ /* We already have some other dependency on tsk from earlier
+ depend clause. */
+ else if (tsk->dependers->n_elem
+ && (tsk->dependers->elem[tsk->dependers->n_elem - 1]
+ == task))
+ continue;
+ else if (tsk->dependers->n_elem == tsk->dependers->allocated)
+ {
+ tsk->dependers->allocated
+ = tsk->dependers->allocated * 2 + 2;
+ tsk->dependers
+ = gomp_realloc (tsk->dependers,
+ sizeof (struct gomp_dependers_vec)
+ + (tsk->dependers->allocated
+ * sizeof (struct gomp_task *)));
+ }
+ tsk->dependers->elem[tsk->dependers->n_elem++] = task;
+ task->num_dependees++;
+ }
+ task->depend[i].next = *slot;
+ (*slot)->prev = &task->depend[i];
+ }
+ *slot = &task->depend[i];
+
+ /* There is no need to store more than one depend({,in}out:) task per
+ address in the hash table chain for the purpose of creation of
+ deferred tasks, because each out depends on all earlier outs, thus it
+ is enough to record just the last depend({,in}out:). For depend(in:),
+ we need to keep all of the previous ones not terminated yet, because
+ a later depend({,in}out:) might need to depend on all of them. So, if
+ the new task's clause is depend({,in}out:), we know there is at most
+ one other depend({,in}out:) clause in the list (out). For
+ non-deferred tasks we want to see all outs, so they are moved to the
+ end of the chain, after first redundant_out entry all following
+ entries should be redundant_out. */
+ if (!task->depend[i].is_in && out)
+ {
+ if (out != last)
+ {
+ out->next->prev = out->prev;
+ out->prev->next = out->next;
+ out->next = last->next;
+ out->prev = last;
+ last->next = out;
+ if (out->next)
+ out->next->prev = out;
+ }
+ out->redundant_out = true;
+ }
+ }
+}
/* Called when encountering an explicit task directive. If IF_CLAUSE is
false, then we must not delay in executing the task. If UNTIED is true,
- then the task may be executed by any member of the team. */
+ then the task may be executed by any member of the team.
+
+ DEPEND is an array containing:
+ depend[0]: number of depend elements.
+ depend[1]: number of depend elements of type "out".
+ depend[2..N+1]: address of [1..N]th depend element. */
void
GOMP_task (void (*fn) (void *), void *data, void (*cpyfn) (void *, void *),
long arg_size, long arg_align, bool if_clause, unsigned flags,
- void **depend)
+ void **depend, int priority)
{
struct gomp_thread *thr = gomp_thread ();
struct gomp_team *team = thr->ts.team;
@@ -125,8 +298,7 @@ GOMP_task (void (*fn) (void *), void *da
might be running on different thread than FN. */
if (cpyfn)
if_clause = false;
- if (flags & 1)
- flags &= ~1;
+ flags &= ~GOMP_TASK_FLAG_UNTIED;
#endif
/* If parallel or taskgroup has been cancelled, don't start new tasks. */
@@ -135,6 +307,11 @@ GOMP_task (void (*fn) (void *), void *da
|| (thr->task->taskgroup && thr->task->taskgroup->cancelled)))
return;
+ if ((flags & GOMP_TASK_FLAG_PRIORITY) == 0)
+ priority = 0;
+ else if (priority > gomp_max_task_priority_var)
+ priority = gomp_max_task_priority_var;
+
if (!if_clause || team == NULL
|| (thr->task && thr->task->final_task)
|| team->task_count > 64 * team->nthreads)
@@ -147,12 +324,15 @@ GOMP_task (void (*fn) (void *), void *da
depend clauses for non-deferred tasks other than this, because
the parent task is suspended until the child task finishes and thus
it can't start further child tasks. */
- if ((flags & 8) && thr->task && thr->task->depend_hash)
+ if ((flags & GOMP_TASK_FLAG_DEPEND)
+ && thr->task && thr->task->depend_hash)
gomp_task_maybe_wait_for_dependencies (depend);
gomp_init_task (&task, thr->task, gomp_icv (false));
- task.kind = GOMP_TASK_IFFALSE;
- task.final_task = (thr->task && thr->task->final_task) || (flags & 2);
+ task.kind = GOMP_TASK_UNDEFERRED;
+ task.final_task = (thr->task && thr->task->final_task)
+ || (flags & GOMP_TASK_FLAG_FINAL);
+ task.priority = priority;
if (thr->task)
{
task.in_tied_task = thr->task->in_tied_task;
@@ -178,10 +358,10 @@ GOMP_task (void (*fn) (void *), void *da
child thread, but seeing a stale non-NULL value is not a
problem. Once past the task_lock acquisition, this thread
will see the real value of task.children. */
- if (task.children != NULL)
+ if (!priority_queue_empty_p (&task.children_queue, MEMMODEL_RELAXED))
{
gomp_mutex_lock (&team->task_lock);
- gomp_clear_parent (task.children);
+ gomp_clear_parent (&task.children_queue);
gomp_mutex_unlock (&team->task_lock);
}
gomp_end_task ();
@@ -195,7 +375,7 @@ GOMP_task (void (*fn) (void *), void *da
bool do_wake;
size_t depend_size = 0;
- if (flags & 8)
+ if (flags & GOMP_TASK_FLAG_DEPEND)
depend_size = ((uintptr_t) depend[0]
* sizeof (struct gomp_task_depend_entry));
task = gomp_malloc (sizeof (*task) + depend_size
@@ -203,7 +383,8 @@ GOMP_task (void (*fn) (void *), void *da
arg = (char *) (((uintptr_t) (task + 1) + depend_size + arg_align - 1)
& ~(uintptr_t) (arg_align - 1));
gomp_init_task (task, parent, gomp_icv (false));
- task->kind = GOMP_TASK_IFFALSE;
+ task->priority = priority;
+ task->kind = GOMP_TASK_UNDEFERRED;
task->in_tied_task = parent->in_tied_task;
task->taskgroup = taskgroup;
thr->task = task;
@@ -218,7 +399,7 @@ GOMP_task (void (*fn) (void *), void *da
task->kind = GOMP_TASK_WAITING;
task->fn = fn;
task->fn_data = arg;
- task->final_task = (flags & 2) >> 1;
+ task->final_task = (flags & GOMP_TASK_FLAG_FINAL) >> 1;
gomp_mutex_lock (&team->task_lock);
/* If parallel or taskgroup has been cancelled, don't start new
tasks. */
@@ -235,171 +416,39 @@ GOMP_task (void (*fn) (void *), void *da
taskgroup->num_children++;
if (depend_size)
{
- size_t ndepend = (uintptr_t) depend[0];
- size_t nout = (uintptr_t) depend[1];
- size_t i;
- hash_entry_type ent;
-
- task->depend_count = ndepend;
- task->num_dependees = 0;
- if (parent->depend_hash == NULL)
- parent->depend_hash
- = htab_create (2 * ndepend > 12 ? 2 * ndepend : 12);
- for (i = 0; i < ndepend; i++)
- {
- task->depend[i].addr = depend[2 + i];
- task->depend[i].next = NULL;
- task->depend[i].prev = NULL;
- task->depend[i].task = task;
- task->depend[i].is_in = i >= nout;
- task->depend[i].redundant = false;
- task->depend[i].redundant_out = false;
-
- hash_entry_type *slot
- = htab_find_slot (&parent->depend_hash, &task->depend[i],
- INSERT);
- hash_entry_type out = NULL, last = NULL;
- if (*slot)
- {
- /* If multiple depends on the same task are the
- same, all but the first one are redundant.
- As inout/out come first, if any of them is
- inout/out, it will win, which is the right
- semantics. */
- if ((*slot)->task == task)
- {
- task->depend[i].redundant = true;
- continue;
- }
- for (ent = *slot; ent; ent = ent->next)
- {
- if (ent->redundant_out)
- break;
-
- last = ent;
-
- /* depend(in:...) doesn't depend on earlier
- depend(in:...). */
- if (i >= nout && ent->is_in)
- continue;
-
- if (!ent->is_in)
- out = ent;
-
- struct gomp_task *tsk = ent->task;
- if (tsk->dependers == NULL)
- {
- tsk->dependers
- = gomp_malloc (sizeof (struct gomp_dependers_vec)
- + 6 * sizeof (struct gomp_task *));
- tsk->dependers->n_elem = 1;
- tsk->dependers->allocated = 6;
- tsk->dependers->elem[0] = task;
- task->num_dependees++;
- continue;
- }
- /* We already have some other dependency on tsk
- from earlier depend clause. */
- else if (tsk->dependers->n_elem
- && (tsk->dependers->elem[tsk->dependers->n_elem
- - 1]
- == task))
- continue;
- else if (tsk->dependers->n_elem
- == tsk->dependers->allocated)
- {
- tsk->dependers->allocated
- = tsk->dependers->allocated * 2 + 2;
- tsk->dependers
- = gomp_realloc (tsk->dependers,
- sizeof (struct gomp_dependers_vec)
- + (tsk->dependers->allocated
- * sizeof (struct gomp_task *)));
- }
- tsk->dependers->elem[tsk->dependers->n_elem++] = task;
- task->num_dependees++;
- }
- task->depend[i].next = *slot;
- (*slot)->prev = &task->depend[i];
- }
- *slot = &task->depend[i];
-
- /* There is no need to store more than one depend({,in}out:)
- task per address in the hash table chain for the purpose
- of creation of deferred tasks, because each out
- depends on all earlier outs, thus it is enough to record
- just the last depend({,in}out:). For depend(in:), we need
- to keep all of the previous ones not terminated yet, because
- a later depend({,in}out:) might need to depend on all of
- them. So, if the new task's clause is depend({,in}out:),
- we know there is at most one other depend({,in}out:) clause
- in the list (out). For non-deferred tasks we want to see
- all outs, so they are moved to the end of the chain,
- after first redundant_out entry all following entries
- should be redundant_out. */
- if (!task->depend[i].is_in && out)
- {
- if (out != last)
- {
- out->next->prev = out->prev;
- out->prev->next = out->next;
- out->next = last->next;
- out->prev = last;
- last->next = out;
- if (out->next)
- out->next->prev = out;
- }
- out->redundant_out = true;
- }
- }
+ gomp_task_handle_depend (task, parent, depend);
if (task->num_dependees)
{
+ /* Tasks that depend on other tasks are not put into the
+ various waiting queues, so we are done for now. Said
+ tasks are instead put into the queues via
+ gomp_task_run_post_handle_dependers() after their
+ dependencies have been satisfied. After which, they
+ can be picked up by the various scheduling
+ points. */
gomp_mutex_unlock (&team->task_lock);
return;
}
}
- if (parent->children)
- {
- task->next_child = parent->children;
- task->prev_child = parent->children->prev_child;
- task->next_child->prev_child = task;
- task->prev_child->next_child = task;
- }
- else
- {
- task->next_child = task;
- task->prev_child = task;
- }
- parent->children = task;
+
+ priority_queue_insert (PQ_CHILDREN, &parent->children_queue,
+ task, priority,
+ PRIORITY_INSERT_BEGIN,
+ /*adjust_parent_depends_on=*/false,
+ task->parent_depends_on);
if (taskgroup)
- {
- if (taskgroup->children)
- {
- task->next_taskgroup = taskgroup->children;
- task->prev_taskgroup = taskgroup->children->prev_taskgroup;
- task->next_taskgroup->prev_taskgroup = task;
- task->prev_taskgroup->next_taskgroup = task;
- }
- else
- {
- task->next_taskgroup = task;
- task->prev_taskgroup = task;
- }
- taskgroup->children = task;
- }
- if (team->task_queue)
- {
- task->next_queue = team->task_queue;
- task->prev_queue = team->task_queue->prev_queue;
- task->next_queue->prev_queue = task;
- task->prev_queue->next_queue = task;
- }
- else
- {
- task->next_queue = task;
- task->prev_queue = task;
- team->task_queue = task;
- }
+ priority_queue_insert (PQ_TASKGROUP, &taskgroup->taskgroup_queue,
+ task, priority,
+ PRIORITY_INSERT_BEGIN,
+ /*adjust_parent_depends_on=*/false,
+ task->parent_depends_on);
+
+ priority_queue_insert (PQ_TEAM, &team->task_queue,
+ task, priority,
+ PRIORITY_INSERT_END,
+ /*adjust_parent_depends_on=*/false,
+ task->parent_depends_on);
+
++team->task_count;
++team->task_queued_count;
gomp_team_barrier_set_task_pending (&team->barrier);
@@ -411,36 +460,529 @@ GOMP_task (void (*fn) (void *), void *da
}
}
-static inline bool
-gomp_task_run_pre (struct gomp_task *child_task, struct gomp_task *parent,
- struct gomp_taskgroup *taskgroup, struct gomp_team *team)
+ialias (GOMP_taskgroup_start)
+ialias (GOMP_taskgroup_end)
+
+#define TYPE long
+#define UTYPE unsigned long
+#define TYPE_is_long 1
+#include "taskloop.c"
+#undef TYPE
+#undef UTYPE
+#undef TYPE_is_long
+
+#define TYPE unsigned long long
+#define UTYPE TYPE
+#define GOMP_taskloop GOMP_taskloop_ull
+#include "taskloop.c"
+#undef TYPE
+#undef UTYPE
+#undef GOMP_taskloop
+
+static void inline
+priority_queue_move_task_first (enum priority_queue_type type,
+ struct priority_queue *head,
+ struct gomp_task *task)
{
+#if _LIBGOMP_CHECKING_
+ if (!priority_queue_task_in_queue_p (type, head, task))
+ gomp_fatal ("Attempt to move first missing task %p", task);
+#endif
+ struct priority_list *list;
+ if (priority_queue_multi_p (head))
+ {
+ list = priority_queue_lookup_priority (head, task->priority);
+#if _LIBGOMP_CHECKING_
+ if (!list)
+ gomp_fatal ("Unable to find priority %d", task->priority);
+#endif
+ }
+ else
+ list = &head->l;
+ priority_list_remove (list, task_to_priority_node (type, task), 0);
+ priority_list_insert (type, list, task, task->priority,
+ PRIORITY_INSERT_BEGIN, type == PQ_CHILDREN,
+ task->parent_depends_on);
+}
+
+/* Actual body of GOMP_PLUGIN_target_task_completion that is executed
+ with team->task_lock held, or is executed in the thread that called
+ gomp_target_task_fn if GOMP_PLUGIN_target_task_completion has been
+ run before it acquires team->task_lock. */
+
+static void
+gomp_target_task_completion (struct gomp_team *team, struct gomp_task *task)
+{
+ struct gomp_task *parent = task->parent;
if (parent)
+ priority_queue_move_task_first (PQ_CHILDREN, &parent->children_queue,
+ task);
+
+ struct gomp_taskgroup *taskgroup = task->taskgroup;
+ if (taskgroup)
+ priority_queue_move_task_first (PQ_TASKGROUP, &taskgroup->taskgroup_queue,
+ task);
+
+ priority_queue_insert (PQ_TEAM, &team->task_queue, task, task->priority,
+ PRIORITY_INSERT_BEGIN, false,
+ task->parent_depends_on);
+ task->kind = GOMP_TASK_WAITING;
+ if (parent && parent->taskwait)
{
- if (parent->children == child_task)
- parent->children = child_task->next_child;
- if (__builtin_expect (child_task->parent_depends_on, 0)
- && parent->taskwait->last_parent_depends_on == child_task)
- {
- if (child_task->prev_child->kind == GOMP_TASK_WAITING
- && child_task->prev_child->parent_depends_on)
- parent->taskwait->last_parent_depends_on = child_task->prev_child;
- else
- parent->taskwait->last_parent_depends_on = NULL;
+ if (parent->taskwait->in_taskwait)
+ {
+ /* One more task has had its dependencies met.
+ Inform any waiters. */
+ parent->taskwait->in_taskwait = false;
+ gomp_sem_post (&parent->taskwait->taskwait_sem);
}
+ else if (parent->taskwait->in_depend_wait)
+ {
+ /* One more task has had its dependencies met.
+ Inform any waiters. */
+ parent->taskwait->in_depend_wait = false;
+ gomp_sem_post (&parent->taskwait->taskwait_sem);
+ }
+ }
+ if (taskgroup && taskgroup->in_taskgroup_wait)
+ {
+ /* One more task has had its dependencies met.
+ Inform any waiters. */
+ taskgroup->in_taskgroup_wait = false;
+ gomp_sem_post (&taskgroup->taskgroup_sem);
}
- if (taskgroup && taskgroup->children == child_task)
- taskgroup->children = child_task->next_taskgroup;
- child_task->prev_queue->next_queue = child_task->next_queue;
- child_task->next_queue->prev_queue = child_task->prev_queue;
- if (team->task_queue == child_task)
+
+ ++team->task_queued_count;
+ gomp_team_barrier_set_task_pending (&team->barrier);
+ /* I'm afraid this can't be done after releasing team->task_lock,
+ as gomp_target_task_completion is run from unrelated thread and
+ therefore in between gomp_mutex_unlock and gomp_team_barrier_wake
+ the team could be gone already. */
+ if (team->nthreads > team->task_running_count)
+ gomp_team_barrier_wake (&team->barrier, 1);
+}
+
+/* Signal that a target task TTASK has completed the asynchronously
+ running phase and should be requeued as a task to handle the
+ variable unmapping. */
+
+void
+GOMP_PLUGIN_target_task_completion (void *data)
+{
+ struct gomp_target_task *ttask = (struct gomp_target_task *) data;
+ struct gomp_task *task = ttask->task;
+ struct gomp_team *team = ttask->team;
+
+ gomp_mutex_lock (&team->task_lock);
+ if (ttask->state == GOMP_TARGET_TASK_READY_TO_RUN)
{
- if (child_task->next_queue != child_task)
- team->task_queue = child_task->next_queue;
+ ttask->state = GOMP_TARGET_TASK_FINISHED;
+ gomp_mutex_unlock (&team->task_lock);
+ return;
+ }
+ ttask->state = GOMP_TARGET_TASK_FINISHED;
+ gomp_target_task_completion (team, task);
+ gomp_mutex_unlock (&team->task_lock);
+}
+
+static void gomp_task_run_post_handle_depend_hash (struct gomp_task *);
+
+/* Called for nowait target tasks. */
+
+bool
+gomp_create_target_task (struct gomp_device_descr *devicep,
+ void (*fn) (void *), size_t mapnum, void **hostaddrs,
+ size_t *sizes, unsigned short *kinds,
+ unsigned int flags, void **depend, void **args,
+ enum gomp_target_task_state state)
+{
+ struct gomp_thread *thr = gomp_thread ();
+ struct gomp_team *team = thr->ts.team;
+
+ /* If parallel or taskgroup has been cancelled, don't start new tasks. */
+ if (team
+ && (gomp_team_barrier_cancelled (&team->barrier)
+ || (thr->task->taskgroup && thr->task->taskgroup->cancelled)))
+ return true;
+
+ struct gomp_target_task *ttask;
+ struct gomp_task *task;
+ struct gomp_task *parent = thr->task;
+ struct gomp_taskgroup *taskgroup = parent->taskgroup;
+ bool do_wake;
+ size_t depend_size = 0;
+ uintptr_t depend_cnt = 0;
+ size_t tgt_align = 0, tgt_size = 0;
+
+ if (depend != NULL)
+ {
+ depend_cnt = (uintptr_t) depend[0];
+ depend_size = depend_cnt * sizeof (struct gomp_task_depend_entry);
+ }
+ if (fn)
+ {
+ /* GOMP_MAP_FIRSTPRIVATE need to be copied first, as they are
+ firstprivate on the target task. */
+ size_t i;
+ for (i = 0; i < mapnum; i++)
+ if ((kinds[i] & 0xff) == GOMP_MAP_FIRSTPRIVATE)
+ {
+ size_t align = (size_t) 1 << (kinds[i] >> 8);
+ if (tgt_align < align)
+ tgt_align = align;
+ tgt_size = (tgt_size + align - 1) & ~(align - 1);
+ tgt_size += sizes[i];
+ }
+ if (tgt_align)
+ tgt_size += tgt_align - 1;
else
- team->task_queue = NULL;
+ tgt_size = 0;
}
+
+ task = gomp_malloc (sizeof (*task) + depend_size
+ + sizeof (*ttask)
+ + mapnum * (sizeof (void *) + sizeof (size_t)
+ + sizeof (unsigned short))
+ + tgt_size);
+ gomp_init_task (task, parent, gomp_icv (false));
+ task->priority = 0;
+ task->kind = GOMP_TASK_WAITING;
+ task->in_tied_task = parent->in_tied_task;
+ task->taskgroup = taskgroup;
+ ttask = (struct gomp_target_task *) &task->depend[depend_cnt];
+ ttask->devicep = devicep;
+ ttask->fn = fn;
+ ttask->mapnum = mapnum;
+ ttask->args = args;
+ memcpy (ttask->hostaddrs, hostaddrs, mapnum * sizeof (void *));
+ ttask->sizes = (size_t *) &ttask->hostaddrs[mapnum];
+ memcpy (ttask->sizes, sizes, mapnum * sizeof (size_t));
+ ttask->kinds = (unsigned short *) &ttask->sizes[mapnum];
+ memcpy (ttask->kinds, kinds, mapnum * sizeof (unsigned short));
+ if (tgt_align)
+ {
+ char *tgt = (char *) &ttask->kinds[mapnum];
+ size_t i;
+ uintptr_t al = (uintptr_t) tgt & (tgt_align - 1);
+ if (al)
+ tgt += tgt_align - al;
+ tgt_size = 0;
+ for (i = 0; i < mapnum; i++)
+ if ((kinds[i] & 0xff) == GOMP_MAP_FIRSTPRIVATE)
+ {
+ size_t align = (size_t) 1 << (kinds[i] >> 8);
+ tgt_size = (tgt_size + align - 1) & ~(align - 1);
+ memcpy (tgt + tgt_size, hostaddrs[i], sizes[i]);
+ ttask->hostaddrs[i] = tgt + tgt_size;
+ tgt_size = tgt_size + sizes[i];
+ }
+ }
+ ttask->flags = flags;
+ ttask->state = state;
+ ttask->task = task;
+ ttask->team = team;
+ task->fn = NULL;
+ task->fn_data = ttask;
+ task->final_task = 0;
+ gomp_mutex_lock (&team->task_lock);
+ /* If parallel or taskgroup has been cancelled, don't start new tasks. */
+ if (__builtin_expect (gomp_team_barrier_cancelled (&team->barrier)
+ || (taskgroup && taskgroup->cancelled), 0))
+ {
+ gomp_mutex_unlock (&team->task_lock);
+ gomp_finish_task (task);
+ free (task);
+ return true;
+ }
+ if (depend_size)
+ {
+ gomp_task_handle_depend (task, parent, depend);
+ if (task->num_dependees)
+ {
+ if (taskgroup)
+ taskgroup->num_children++;
+ gomp_mutex_unlock (&team->task_lock);
+ return true;
+ }
+ }
+ if (state == GOMP_TARGET_TASK_DATA)
+ {
+ gomp_task_run_post_handle_depend_hash (task);
+ gomp_mutex_unlock (&team->task_lock);
+ gomp_finish_task (task);
+ free (task);
+ return false;
+ }
+ if (taskgroup)
+ taskgroup->num_children++;
+ /* For async offloading, if we don't need to wait for dependencies,
+ run the gomp_target_task_fn right away, essentially schedule the
+ mapping part of the task in the current thread. */
+ if (devicep != NULL
+ && (devicep->capabilities & GOMP_OFFLOAD_CAP_OPENMP_400))
+ {
+ priority_queue_insert (PQ_CHILDREN, &parent->children_queue, task, 0,
+ PRIORITY_INSERT_END,
+ /*adjust_parent_depends_on=*/false,
+ task->parent_depends_on);
+ if (taskgroup)
+ priority_queue_insert (PQ_TASKGROUP, &taskgroup->taskgroup_queue,
+ task, 0, PRIORITY_INSERT_END,
+ /*adjust_parent_depends_on=*/false,
+ task->parent_depends_on);
+ task->pnode[PQ_TEAM].next = NULL;
+ task->pnode[PQ_TEAM].prev = NULL;
+ task->kind = GOMP_TASK_TIED;
+ ++team->task_count;
+ gomp_mutex_unlock (&team->task_lock);
+
+ thr->task = task;
+ gomp_target_task_fn (task->fn_data);
+ thr->task = parent;
+
+ gomp_mutex_lock (&team->task_lock);
+ task->kind = GOMP_TASK_ASYNC_RUNNING;
+ /* If GOMP_PLUGIN_target_task_completion has run already
+ in between gomp_target_task_fn and the mutex lock,
+ perform the requeuing here. */
+ if (ttask->state == GOMP_TARGET_TASK_FINISHED)
+ gomp_target_task_completion (team, task);
+ else
+ ttask->state = GOMP_TARGET_TASK_RUNNING;
+ gomp_mutex_unlock (&team->task_lock);
+ return true;
+ }
+ priority_queue_insert (PQ_CHILDREN, &parent->children_queue, task, 0,
+ PRIORITY_INSERT_BEGIN,
+ /*adjust_parent_depends_on=*/false,
+ task->parent_depends_on);
+ if (taskgroup)
+ priority_queue_insert (PQ_TASKGROUP, &taskgroup->taskgroup_queue, task, 0,
+ PRIORITY_INSERT_BEGIN,
+ /*adjust_parent_depends_on=*/false,
+ task->parent_depends_on);
+ priority_queue_insert (PQ_TEAM, &team->task_queue, task, 0,
+ PRIORITY_INSERT_END,
+ /*adjust_parent_depends_on=*/false,
+ task->parent_depends_on);
+ ++team->task_count;
+ ++team->task_queued_count;
+ gomp_team_barrier_set_task_pending (&team->barrier);
+ do_wake = team->task_running_count + !parent->in_tied_task
+ < team->nthreads;
+ gomp_mutex_unlock (&team->task_lock);
+ if (do_wake)
+ gomp_team_barrier_wake (&team->barrier, 1);
+ return true;
+}
+
+/* Given a parent_depends_on task in LIST, move it to the front of its
+ priority so it is run as soon as possible.
+
+ Care is taken to update the list's LAST_PARENT_DEPENDS_ON field.
+
+ We rearrange the queue such that all parent_depends_on tasks are
+ first, and last_parent_depends_on points to the last such task we
+ rearranged. For example, given the following tasks in a queue
+ where PD[123] are the parent_depends_on tasks:
+
+ task->children
+ |
+ V
+ C1 -> C2 -> C3 -> PD1 -> PD2 -> PD3 -> C4
+
+ We rearrange such that:
+
+ task->children
+ | +--- last_parent_depends_on
+ | |
+ V V
+ PD1 -> PD2 -> PD3 -> C1 -> C2 -> C3 -> C4. */
+
+static void inline
+priority_list_upgrade_task (struct priority_list *list,
+ struct priority_node *node)
+{
+ struct priority_node *last_parent_depends_on
+ = list->last_parent_depends_on;
+ if (last_parent_depends_on)
+ {
+ node->prev->next = node->next;
+ node->next->prev = node->prev;
+ node->prev = last_parent_depends_on;
+ node->next = last_parent_depends_on->next;
+ node->prev->next = node;
+ node->next->prev = node;
+ }
+ else if (node != list->tasks)
+ {
+ node->prev->next = node->next;
+ node->next->prev = node->prev;
+ node->prev = list->tasks->prev;
+ node->next = list->tasks;
+ list->tasks = node;
+ node->prev->next = node;
+ node->next->prev = node;
+ }
+ list->last_parent_depends_on = node;
+}
+
+/* Given a parent_depends_on TASK in its parent's children_queue, move
+ it to the front of its priority so it is run as soon as possible.
+
+ PARENT is passed as an optimization.
+
+ (This function could be defined in priority_queue.c, but we want it
+ inlined, and putting it in priority_queue.h is not an option, given
+ that gomp_task has not been properly defined at that point). */
+
+static void inline
+priority_queue_upgrade_task (struct gomp_task *task,
+ struct gomp_task *parent)
+{
+ struct priority_queue *head = &parent->children_queue;
+ struct priority_node *node = &task->pnode[PQ_CHILDREN];
+#if _LIBGOMP_CHECKING_
+ if (!task->parent_depends_on)
+ gomp_fatal ("priority_queue_upgrade_task: task must be a "
+ "parent_depends_on task");
+ if (!priority_queue_task_in_queue_p (PQ_CHILDREN, head, task))
+ gomp_fatal ("priority_queue_upgrade_task: cannot find task=%p", task);
+#endif
+ if (priority_queue_multi_p (head))
+ {
+ struct priority_list *list
+ = priority_queue_lookup_priority (head, task->priority);
+ priority_list_upgrade_task (list, node);
+ }
+ else
+ priority_list_upgrade_task (&head->l, node);
+}
+
+/* Given a CHILD_TASK in LIST that is about to be executed, move it out of
+ the way in LIST so that other tasks can be considered for
+ execution. LIST contains tasks of type TYPE.
+
+ Care is taken to update the queue's LAST_PARENT_DEPENDS_ON field
+ if applicable. */
+
+static void inline
+priority_list_downgrade_task (enum priority_queue_type type,
+ struct priority_list *list,
+ struct gomp_task *child_task)
+{
+ struct priority_node *node = task_to_priority_node (type, child_task);
+ if (list->tasks == node)
+ list->tasks = node->next;
+ else if (node->next != list->tasks)
+ {
+ /* The task in NODE is about to become TIED and TIED tasks
+ cannot come before WAITING tasks. If we're about to
+ leave the queue in such an indeterminate state, rewire
+ things appropriately. However, a TIED task at the end is
+ perfectly fine. */
+ struct gomp_task *next_task = priority_node_to_task (type, node->next);
+ if (next_task->kind == GOMP_TASK_WAITING)
+ {
+ /* Remove from list. */
+ node->prev->next = node->next;
+ node->next->prev = node->prev;
+ /* Rewire at the end. */
+ node->next = list->tasks;
+ node->prev = list->tasks->prev;
+ list->tasks->prev->next = node;
+ list->tasks->prev = node;
+ }
+ }
+
+ /* If the current task is the last_parent_depends_on for its
+ priority, adjust last_parent_depends_on appropriately. */
+ if (__builtin_expect (child_task->parent_depends_on, 0)
+ && list->last_parent_depends_on == node)
+ {
+ struct gomp_task *prev_child = priority_node_to_task (type, node->prev);
+ if (node->prev != node
+ && prev_child->kind == GOMP_TASK_WAITING
+ && prev_child->parent_depends_on)
+ list->last_parent_depends_on = node->prev;
+ else
+ {
+ /* There are no more parent_depends_on entries waiting
+ to run, clear the list. */
+ list->last_parent_depends_on = NULL;
+ }
+ }
+}
+
+/* Given a TASK in HEAD that is about to be executed, move it out of
+ the way so that other tasks can be considered for execution. HEAD
+ contains tasks of type TYPE.
+
+ Care is taken to update the queue's LAST_PARENT_DEPENDS_ON field
+ if applicable.
+
+ (This function could be defined in priority_queue.c, but we want it
+ inlined, and putting it in priority_queue.h is not an option, given
+ that gomp_task has not been properly defined at that point). */
+
+static void inline
+priority_queue_downgrade_task (enum priority_queue_type type,
+ struct priority_queue *head,
+ struct gomp_task *task)
+{
+#if _LIBGOMP_CHECKING_
+ if (!priority_queue_task_in_queue_p (type, head, task))
+ gomp_fatal ("Attempt to downgrade missing task %p", task);
+#endif
+ if (priority_queue_multi_p (head))
+ {
+ struct priority_list *list
+ = priority_queue_lookup_priority (head, task->priority);
+ priority_list_downgrade_task (type, list, task);
+ }
+ else
+ priority_list_downgrade_task (type, &head->l, task);
+}
+
+/* Setup CHILD_TASK to execute. This is done by setting the task to
+ TIED, and updating all relevant queues so that CHILD_TASK is no
+ longer chosen for scheduling. Also, remove CHILD_TASK from the
+ overall team task queue entirely.
+
+ Return TRUE if task or its containing taskgroup has been
+ cancelled. */
+
+static inline bool
+gomp_task_run_pre (struct gomp_task *child_task, struct gomp_task *parent,
+ struct gomp_team *team)
+{
+#if _LIBGOMP_CHECKING_
+ if (child_task->parent)
+ priority_queue_verify (PQ_CHILDREN,
+ &child_task->parent->children_queue, true);
+ if (child_task->taskgroup)
+ priority_queue_verify (PQ_TASKGROUP,
+ &child_task->taskgroup->taskgroup_queue, false);
+ priority_queue_verify (PQ_TEAM, &team->task_queue, false);
+#endif
+
+ /* Task is about to go tied, move it out of the way. */
+ if (parent)
+ priority_queue_downgrade_task (PQ_CHILDREN, &parent->children_queue,
+ child_task);
+
+ /* Task is about to go tied, move it out of the way. */
+ struct gomp_taskgroup *taskgroup = child_task->taskgroup;
+ if (taskgroup)
+ priority_queue_downgrade_task (PQ_TASKGROUP, &taskgroup->taskgroup_queue,
+ child_task);
+
+ priority_queue_remove (PQ_TEAM, &team->task_queue, child_task,
+ MEMMODEL_RELAXED);
+ child_task->pnode[PQ_TEAM].next = NULL;
+ child_task->pnode[PQ_TEAM].prev = NULL;
child_task->kind = GOMP_TASK_TIED;
+
if (--team->task_queued_count == 0)
gomp_team_barrier_clear_task_pending (&team->barrier);
if ((gomp_team_barrier_cancelled (&team->barrier)
@@ -478,6 +1020,14 @@ gomp_task_run_post_handle_depend_hash (s
}
}
+/* After a CHILD_TASK has been run, adjust the dependency queue for
+ each task that depends on CHILD_TASK, to record the fact that there
+ is one less dependency to worry about. If a task that depended on
+ CHILD_TASK now has no dependencies, place it in the various queues
+ so it gets scheduled to run.
+
+ TEAM is the team to which CHILD_TASK belongs to. */
+
static size_t
gomp_task_run_post_handle_dependers (struct gomp_task *child_task,
struct gomp_team *team)
@@ -487,91 +1037,60 @@ gomp_task_run_post_handle_dependers (str
for (i = 0; i < count; i++)
{
struct gomp_task *task = child_task->dependers->elem[i];
+
+ /* CHILD_TASK satisfies a dependency for TASK. Keep track of
+ TASK's remaining dependencies. Once TASK has no other
+ depenencies, put it into the various queues so it will get
+ scheduled for execution. */
if (--task->num_dependees != 0)
continue;
struct gomp_taskgroup *taskgroup = task->taskgroup;
if (parent)
{
- if (parent->children)
- {
- /* If parent is in gomp_task_maybe_wait_for_dependencies
- and it doesn't need to wait for this task, put it after
- all ready to run tasks it needs to wait for. */
- if (parent->taskwait && parent->taskwait->last_parent_depends_on
- && !task->parent_depends_on)
- {
- struct gomp_task *last_parent_depends_on
- = parent->taskwait->last_parent_depends_on;
- task->next_child = last_parent_depends_on->next_child;
- task->prev_child = last_parent_depends_on;
- }
- else
- {
- task->next_child = parent->children;
- task->prev_child = parent->children->prev_child;
- parent->children = task;
- }
- task->next_child->prev_child = task;
- task->prev_child->next_child = task;
- }
- else
- {
- task->next_child = task;
- task->prev_child = task;
- parent->children = task;
- }
+ priority_queue_insert (PQ_CHILDREN, &parent->children_queue,
+ task, task->priority,
+ PRIORITY_INSERT_BEGIN,
+ /*adjust_parent_depends_on=*/true,
+ task->parent_depends_on);
if (parent->taskwait)
{
if (parent->taskwait->in_taskwait)
{
+ /* One more task has had its dependencies met.
+ Inform any waiters. */
parent->taskwait->in_taskwait = false;
gomp_sem_post (&parent->taskwait->taskwait_sem);
}
else if (parent->taskwait->in_depend_wait)
{
+ /* One more task has had its dependencies met.
+ Inform any waiters. */
parent->taskwait->in_depend_wait = false;
gomp_sem_post (&parent->taskwait->taskwait_sem);
}
- if (parent->taskwait->last_parent_depends_on == NULL
- && task->parent_depends_on)
- parent->taskwait->last_parent_depends_on = task;
}
}
if (taskgroup)
{
- if (taskgroup->children)
- {
- task->next_taskgroup = taskgroup->children;
- task->prev_taskgroup = taskgroup->children->prev_taskgroup;
- task->next_taskgroup->prev_taskgroup = task;
- task->prev_taskgroup->next_taskgroup = task;
- }
- else
- {
- task->next_taskgroup = task;
- task->prev_taskgroup = task;
- }
- taskgroup->children = task;
+ priority_queue_insert (PQ_TASKGROUP, &taskgroup->taskgroup_queue,
+ task, task->priority,
+ PRIORITY_INSERT_BEGIN,
+ /*adjust_parent_depends_on=*/false,
+ task->parent_depends_on);
if (taskgroup->in_taskgroup_wait)
{
+ /* One more task has had its dependencies met.
+ Inform any waiters. */
taskgroup->in_taskgroup_wait = false;
gomp_sem_post (&taskgroup->taskgroup_sem);
}
}
- if (team->task_queue)
- {
- task->next_queue = team->task_queue;
- task->prev_queue = team->task_queue->prev_queue;
- task->next_queue->prev_queue = task;
- task->prev_queue->next_queue = task;
- }
- else
- {
- task->next_queue = task;
- task->prev_queue = task;
- team->task_queue = task;
- }
+ priority_queue_insert (PQ_TEAM, &team->task_queue,
+ task, task->priority,
+ PRIORITY_INSERT_END,
+ /*adjust_parent_depends_on=*/false,
+ task->parent_depends_on);
++team->task_count;
++team->task_queued_count;
++ret;
@@ -601,12 +1120,18 @@ gomp_task_run_post_handle_depend (struct
return gomp_task_run_post_handle_dependers (child_task, team);
}
+/* Remove CHILD_TASK from its parent. */
+
static inline void
gomp_task_run_post_remove_parent (struct gomp_task *child_task)
{
struct gomp_task *parent = child_task->parent;
if (parent == NULL)
return;
+
+ /* If this was the last task the parent was depending on,
+ synchronize with gomp_task_maybe_wait_for_dependencies so it can
+ clean up and return. */
if (__builtin_expect (child_task->parent_depends_on, 0)
&& --parent->taskwait->n_depend == 0
&& parent->taskwait->in_depend_wait)
@@ -614,36 +1139,31 @@ gomp_task_run_post_remove_parent (struct
parent->taskwait->in_depend_wait = false;
gomp_sem_post (&parent->taskwait->taskwait_sem);
}
- child_task->prev_child->next_child = child_task->next_child;
- child_task->next_child->prev_child = child_task->prev_child;
- if (parent->children != child_task)
- return;
- if (child_task->next_child != child_task)
- parent->children = child_task->next_child;
- else
+
+ if (priority_queue_remove (PQ_CHILDREN, &parent->children_queue,
+ child_task, MEMMODEL_RELEASE)
+ && parent->taskwait && parent->taskwait->in_taskwait)
{
- /* We access task->children in GOMP_taskwait
- outside of the task lock mutex region, so
- need a release barrier here to ensure memory
- written by child_task->fn above is flushed
- before the NULL is written. */
- __atomic_store_n (&parent->children, NULL, MEMMODEL_RELEASE);
- if (parent->taskwait && parent->taskwait->in_taskwait)
- {
- parent->taskwait->in_taskwait = false;
- gomp_sem_post (&parent->taskwait->taskwait_sem);
- }
+ parent->taskwait->in_taskwait = false;
+ gomp_sem_post (&parent->taskwait->taskwait_sem);
}
+ child_task->pnode[PQ_CHILDREN].next = NULL;
+ child_task->pnode[PQ_CHILDREN].prev = NULL;
}
+/* Remove CHILD_TASK from its taskgroup. */
+
static inline void
gomp_task_run_post_remove_taskgroup (struct gomp_task *child_task)
{
struct gomp_taskgroup *taskgroup = child_task->taskgroup;
if (taskgroup == NULL)
return;
- child_task->prev_taskgroup->next_taskgroup = child_task->next_taskgroup;
- child_task->next_taskgroup->prev_taskgroup = child_task->prev_taskgroup;
+ bool empty = priority_queue_remove (PQ_TASKGROUP,
+ &taskgroup->taskgroup_queue,
+ child_task, MEMMODEL_RELAXED);
+ child_task->pnode[PQ_TASKGROUP].next = NULL;
+ child_task->pnode[PQ_TASKGROUP].prev = NULL;
if (taskgroup->num_children > 1)
--taskgroup->num_children;
else
@@ -655,18 +1175,10 @@ gomp_task_run_post_remove_taskgroup (str
before the NULL is written. */
__atomic_store_n (&taskgroup->num_children, 0, MEMMODEL_RELEASE);
}
- if (taskgroup->children != child_task)
- return;
- if (child_task->next_taskgroup != child_task)
- taskgroup->children = child_task->next_taskgroup;
- else
+ if (empty && taskgroup->in_taskgroup_wait)
{
- taskgroup->children = NULL;
- if (taskgroup->in_taskgroup_wait)
- {
- taskgroup->in_taskgroup_wait = false;
- gomp_sem_post (&taskgroup->taskgroup_sem);
- }
+ taskgroup->in_taskgroup_wait = false;
+ gomp_sem_post (&taskgroup->taskgroup_sem);
}
}
@@ -696,11 +1208,15 @@ gomp_barrier_handle_tasks (gomp_barrier_
while (1)
{
bool cancelled = false;
- if (team->task_queue != NULL)
+ if (!priority_queue_empty_p (&team->task_queue, MEMMODEL_RELAXED))
{
- child_task = team->task_queue;
+ bool ignored;
+ child_task
+ = priority_queue_next_task (PQ_TEAM, &team->task_queue,
+ PQ_IGNORED, NULL,
+ &ignored);
cancelled = gomp_task_run_pre (child_task, child_task->parent,
- child_task->taskgroup, team);
+ team);
if (__builtin_expect (cancelled, 0))
{
if (to_free)
@@ -729,7 +1245,29 @@ gomp_barrier_handle_tasks (gomp_barrier_
if (child_task)
{
thr->task = child_task;
- child_task->fn (child_task->fn_data);
+ if (__builtin_expect (child_task->fn == NULL, 0))
+ {
+ if (gomp_target_task_fn (child_task->fn_data))
+ {
+ thr->task = task;
+ gomp_mutex_lock (&team->task_lock);
+ child_task->kind = GOMP_TASK_ASYNC_RUNNING;
+ team->task_running_count--;
+ struct gomp_target_task *ttask
+ = (struct gomp_target_task *) child_task->fn_data;
+ /* If GOMP_PLUGIN_target_task_completion has run already
+ in between gomp_target_task_fn and the mutex lock,
+ perform the requeuing here. */
+ if (ttask->state == GOMP_TARGET_TASK_FINISHED)
+ gomp_target_task_completion (team, child_task);
+ else
+ ttask->state = GOMP_TARGET_TASK_RUNNING;
+ child_task = NULL;
+ continue;
+ }
+ }
+ else
+ child_task->fn (child_task->fn_data);
thr->task = task;
}
else
@@ -741,7 +1279,7 @@ gomp_barrier_handle_tasks (gomp_barrier_
size_t new_tasks
= gomp_task_run_post_handle_depend (child_task, team);
gomp_task_run_post_remove_parent (child_task);
- gomp_clear_parent (child_task->children);
+ gomp_clear_parent (&child_task->children_queue);
gomp_task_run_post_remove_taskgroup (child_task);
to_free = child_task;
child_task = NULL;
@@ -765,7 +1303,9 @@ gomp_barrier_handle_tasks (gomp_barrier_
}
}
-/* Called when encountering a taskwait directive. */
+/* Called when encountering a taskwait directive.
+
+ Wait for all children of the current task. */
void
GOMP_taskwait (void)
@@ -785,15 +1325,16 @@ GOMP_taskwait (void)
child thread task work function are seen before we exit from
GOMP_taskwait. */
if (task == NULL
- || __atomic_load_n (&task->children, MEMMODEL_ACQUIRE) == NULL)
+ || priority_queue_empty_p (&task->children_queue, MEMMODEL_ACQUIRE))
return;
memset (&taskwait, 0, sizeof (taskwait));
+ bool child_q = false;
gomp_mutex_lock (&team->task_lock);
while (1)
{
bool cancelled = false;
- if (task->children == NULL)
+ if (priority_queue_empty_p (&task->children_queue, MEMMODEL_RELAXED))
{
bool destroy_taskwait = task->taskwait != NULL;
task->taskwait = NULL;
@@ -807,12 +1348,14 @@ GOMP_taskwait (void)
gomp_sem_destroy (&taskwait.taskwait_sem);
return;
}
- if (task->children->kind == GOMP_TASK_WAITING)
+ struct gomp_task *next_task
+ = priority_queue_next_task (PQ_CHILDREN, &task->children_queue,
+ PQ_TEAM, &team->task_queue, &child_q);
+ if (next_task->kind == GOMP_TASK_WAITING)
{
- child_task = task->children;
+ child_task = next_task;
cancelled
- = gomp_task_run_pre (child_task, task, child_task->taskgroup,
- team);
+ = gomp_task_run_pre (child_task, task, team);
if (__builtin_expect (cancelled, 0))
{
if (to_free)
@@ -826,8 +1369,10 @@ GOMP_taskwait (void)
}
else
{
- /* All tasks we are waiting for are already running
- in other threads. Wait for them. */
+ /* All tasks we are waiting for are either running in other
+ threads, or they are tasks that have not had their
+ dependencies met (so they're not even in the queue). Wait
+ for them. */
if (task->taskwait == NULL)
{
taskwait.in_depend_wait = false;
@@ -851,7 +1396,28 @@ GOMP_taskwait (void)
if (child_task)
{
thr->task = child_task;
- child_task->fn (child_task->fn_data);
+ if (__builtin_expect (child_task->fn == NULL, 0))
+ {
+ if (gomp_target_task_fn (child_task->fn_data))
+ {
+ thr->task = task;
+ gomp_mutex_lock (&team->task_lock);
+ child_task->kind = GOMP_TASK_ASYNC_RUNNING;
+ struct gomp_target_task *ttask
+ = (struct gomp_target_task *) child_task->fn_data;
+ /* If GOMP_PLUGIN_target_task_completion has run already
+ in between gomp_target_task_fn and the mutex lock,
+ perform the requeuing here. */
+ if (ttask->state == GOMP_TARGET_TASK_FINISHED)
+ gomp_target_task_completion (team, child_task);
+ else
+ ttask->state = GOMP_TARGET_TASK_RUNNING;
+ child_task = NULL;
+ continue;
+ }
+ }
+ else
+ child_task->fn (child_task->fn_data);
thr->task = task;
}
else
@@ -862,17 +1428,19 @@ GOMP_taskwait (void)
finish_cancelled:;
size_t new_tasks
= gomp_task_run_post_handle_depend (child_task, team);
- child_task->prev_child->next_child = child_task->next_child;
- child_task->next_child->prev_child = child_task->prev_child;
- if (task->children == child_task)
- {
- if (child_task->next_child != child_task)
- task->children = child_task->next_child;
- else
- task->children = NULL;
+
+ if (child_q)
+ {
+ priority_queue_remove (PQ_CHILDREN, &task->children_queue,
+ child_task, MEMMODEL_RELAXED);
+ child_task->pnode[PQ_CHILDREN].next = NULL;
+ child_task->pnode[PQ_CHILDREN].prev = NULL;
}
- gomp_clear_parent (child_task->children);
+
+ gomp_clear_parent (&child_task->children_queue);
+
gomp_task_run_post_remove_taskgroup (child_task);
+
to_free = child_task;
child_task = NULL;
team->task_count--;
@@ -887,10 +1455,20 @@ GOMP_taskwait (void)
}
}
-/* This is like GOMP_taskwait, but we only wait for tasks that the
- upcoming task depends on. */
+/* An undeferred task is about to run. Wait for all tasks that this
+ undeferred task depends on.
-static void
+ This is done by first putting all known ready dependencies
+ (dependencies that have their own dependencies met) at the top of
+ the scheduling queues. Then we iterate through these imminently
+ ready tasks (and possibly other high priority tasks), and run them.
+ If we run out of ready dependencies to execute, we either wait for
+ the reamining dependencies to finish, or wait for them to get
+ scheduled so we can run them.
+
+ DEPEND is as in GOMP_task. */
+
+void
gomp_task_maybe_wait_for_dependencies (void **depend)
{
struct gomp_thread *thr = gomp_thread ();
@@ -898,7 +1476,6 @@ gomp_task_maybe_wait_for_dependencies (v
struct gomp_team *team = thr->ts.team;
struct gomp_task_depend_entry elem, *ent = NULL;
struct gomp_taskwait taskwait;
- struct gomp_task *last_parent_depends_on = NULL;
size_t ndepend = (uintptr_t) depend[0];
size_t nout = (uintptr_t) depend[1];
size_t i;
@@ -922,32 +1499,11 @@ gomp_task_maybe_wait_for_dependencies (v
{
tsk->parent_depends_on = true;
++num_awaited;
+ /* If depenency TSK itself has no dependencies and is
+ ready to run, move it up front so that we run it as
+ soon as possible. */
if (tsk->num_dependees == 0 && tsk->kind == GOMP_TASK_WAITING)
- {
- /* If a task we need to wait for is not already
- running and is ready to be scheduled, move it
- to front, so that we run it as soon as possible. */
- if (last_parent_depends_on)
- {
- tsk->prev_child->next_child = tsk->next_child;
- tsk->next_child->prev_child = tsk->prev_child;
- tsk->prev_child = last_parent_depends_on;
- tsk->next_child = last_parent_depends_on->next_child;
- tsk->prev_child->next_child = tsk;
- tsk->next_child->prev_child = tsk;
- }
- else if (tsk != task->children)
- {
- tsk->prev_child->next_child = tsk->next_child;
- tsk->next_child->prev_child = tsk->prev_child;
- tsk->prev_child = task->children;
- tsk->next_child = task->children->next_child;
- task->children = tsk;
- tsk->prev_child->next_child = tsk;
- tsk->next_child->prev_child = tsk;
- }
- last_parent_depends_on = tsk;
- }
+ priority_queue_upgrade_task (tsk, task);
}
}
}
@@ -959,7 +1515,6 @@ gomp_task_maybe_wait_for_dependencies (v
memset (&taskwait, 0, sizeof (taskwait));
taskwait.n_depend = num_awaited;
- taskwait.last_parent_depends_on = last_parent_depends_on;
gomp_sem_init (&taskwait.taskwait_sem, 0);
task->taskwait = &taskwait;
@@ -978,12 +1533,30 @@ gomp_task_maybe_wait_for_dependencies (v
gomp_sem_destroy (&taskwait.taskwait_sem);
return;
}
- if (task->children->kind == GOMP_TASK_WAITING)
+
+ /* Theoretically when we have multiple priorities, we should
+ chose between the highest priority item in
+ task->children_queue and team->task_queue here, so we should
+ use priority_queue_next_task(). However, since we are
+ running an undeferred task, perhaps that makes all tasks it
+ depends on undeferred, thus a priority of INF? This would
+ make it unnecessary to take anything into account here,
+ but the dependencies.
+
+ On the other hand, if we want to use priority_queue_next_task(),
+ care should be taken to only use priority_queue_remove()
+ below if the task was actually removed from the children
+ queue. */
+ bool ignored;
+ struct gomp_task *next_task
+ = priority_queue_next_task (PQ_CHILDREN, &task->children_queue,
+ PQ_IGNORED, NULL, &ignored);
+
+ if (next_task->kind == GOMP_TASK_WAITING)
{
- child_task = task->children;
+ child_task = next_task;
cancelled
- = gomp_task_run_pre (child_task, task, child_task->taskgroup,
- team);
+ = gomp_task_run_pre (child_task, task, team);
if (__builtin_expect (cancelled, 0))
{
if (to_free)
@@ -996,8 +1569,10 @@ gomp_task_maybe_wait_for_dependencies (v
}
}
else
- /* All tasks we are waiting for are already running
- in other threads. Wait for them. */
+ /* All tasks we are waiting for are either running in other
+ threads, or they are tasks that have not had their
+ dependencies met (so they're not even in the queue). Wait
+ for them. */
taskwait.in_depend_wait = true;
gomp_mutex_unlock (&team->task_lock);
if (do_wake)
@@ -1014,7 +1589,28 @@ gomp_task_maybe_wait_for_dependencies (v
if (child_task)
{
thr->task = child_task;
- child_task->fn (child_task->fn_data);
+ if (__builtin_expect (child_task->fn == NULL, 0))
+ {
+ if (gomp_target_task_fn (child_task->fn_data))
+ {
+ thr->task = task;
+ gomp_mutex_lock (&team->task_lock);
+ child_task->kind = GOMP_TASK_ASYNC_RUNNING;
+ struct gomp_target_task *ttask
+ = (struct gomp_target_task *) child_task->fn_data;
+ /* If GOMP_PLUGIN_target_task_completion has run already
+ in between gomp_target_task_fn and the mutex lock,
+ perform the requeuing here. */
+ if (ttask->state == GOMP_TARGET_TASK_FINISHED)
+ gomp_target_task_completion (team, child_task);
+ else
+ ttask->state = GOMP_TARGET_TASK_RUNNING;
+ child_task = NULL;
+ continue;
+ }
+ }
+ else
+ child_task->fn (child_task->fn_data);
thr->task = task;
}
else
@@ -1027,16 +1623,13 @@ gomp_task_maybe_wait_for_dependencies (v
= gomp_task_run_post_handle_depend (child_task, team);
if (child_task->parent_depends_on)
--taskwait.n_depend;
- child_task->prev_child->next_child = child_task->next_child;
- child_task->next_child->prev_child = child_task->prev_child;
- if (task->children == child_task)
- {
- if (child_task->next_child != child_task)
- task->children = child_task->next_child;
- else
- task->children = NULL;
- }
- gomp_clear_parent (child_task->children);
+
+ priority_queue_remove (PQ_CHILDREN, &task->children_queue,
+ child_task, MEMMODEL_RELAXED);
+ child_task->pnode[PQ_CHILDREN].next = NULL;
+ child_task->pnode[PQ_CHILDREN].prev = NULL;
+
+ gomp_clear_parent (&child_task->children_queue);
gomp_task_run_post_remove_taskgroup (child_task);
to_free = child_task;
child_task = NULL;
@@ -1069,14 +1662,14 @@ GOMP_taskgroup_start (void)
struct gomp_taskgroup *taskgroup;
/* If team is NULL, all tasks are executed as
- GOMP_TASK_IFFALSE tasks and thus all children tasks of
+ GOMP_TASK_UNDEFERRED tasks and thus all children tasks of
taskgroup and their descendant tasks will be finished
by the time GOMP_taskgroup_end is called. */
if (team == NULL)
return;
taskgroup = gomp_malloc (sizeof (struct gomp_taskgroup));
taskgroup->prev = task->taskgroup;
- taskgroup->children = NULL;
+ priority_queue_init (&taskgroup->taskgroup_queue);
taskgroup->in_taskgroup_wait = false;
taskgroup->cancelled = false;
taskgroup->num_children = 0;
@@ -1098,6 +1691,17 @@ GOMP_taskgroup_end (void)
if (team == NULL)
return;
taskgroup = task->taskgroup;
+ if (__builtin_expect (taskgroup == NULL, 0)
+ && thr->ts.level == 0)
+ {
+ /* This can happen if GOMP_taskgroup_start is called when
+ thr->ts.team == NULL, but inside of the taskgroup there
+ is #pragma omp target nowait that creates an implicit
+ team with a single thread. In this case, we want to wait
+ for all outstanding tasks in this team. */
+ gomp_team_barrier_wait (&team->barrier);
+ return;
+ }
/* The acquire barrier on load of taskgroup->num_children here
synchronizes with the write of 0 in gomp_task_run_post_remove_taskgroup.
@@ -1108,19 +1712,25 @@ GOMP_taskgroup_end (void)
if (__atomic_load_n (&taskgroup->num_children, MEMMODEL_ACQUIRE) == 0)
goto finish;
+ bool unused;
gomp_mutex_lock (&team->task_lock);
while (1)
{
bool cancelled = false;
- if (taskgroup->children == NULL)
+ if (priority_queue_empty_p (&taskgroup->taskgroup_queue,
+ MEMMODEL_RELAXED))
{
if (taskgroup->num_children)
{
- if (task->children == NULL)
+ if (priority_queue_empty_p (&task->children_queue,
+ MEMMODEL_RELAXED))
goto do_wait;
- child_task = task->children;
- }
- else
+ child_task
+ = priority_queue_next_task (PQ_CHILDREN, &task->children_queue,
+ PQ_TEAM, &team->task_queue,
+ &unused);
+ }
+ else
{
gomp_mutex_unlock (&team->task_lock);
if (to_free)
@@ -1132,12 +1742,13 @@ GOMP_taskgroup_end (void)
}
}
else
- child_task = taskgroup->children;
+ child_task
+ = priority_queue_next_task (PQ_TASKGROUP, &taskgroup->taskgroup_queue,
+ PQ_TEAM, &team->task_queue, &unused);
if (child_task->kind == GOMP_TASK_WAITING)
{
cancelled
- = gomp_task_run_pre (child_task, child_task->parent, taskgroup,
- team);
+ = gomp_task_run_pre (child_task, child_task->parent, team);
if (__builtin_expect (cancelled, 0))
{
if (to_free)
@@ -1153,8 +1764,10 @@ GOMP_taskgroup_end (void)
{
child_task = NULL;
do_wait:
- /* All tasks we are waiting for are already running
- in other threads. Wait for them. */
+ /* All tasks we are waiting for are either running in other
+ threads, or they are tasks that have not had their
+ dependencies met (so they're not even in the queue). Wait
+ for them. */
taskgroup->in_taskgroup_wait = true;
}
gomp_mutex_unlock (&team->task_lock);
@@ -1172,7 +1785,28 @@ GOMP_taskgroup_end (void)
if (child_task)
{
thr->task = child_task;
- child_task->fn (child_task->fn_data);
+ if (__builtin_expect (child_task->fn == NULL, 0))
+ {
+ if (gomp_target_task_fn (child_task->fn_data))
+ {
+ thr->task = task;
+ gomp_mutex_lock (&team->task_lock);
+ child_task->kind = GOMP_TASK_ASYNC_RUNNING;
+ struct gomp_target_task *ttask
+ = (struct gomp_target_task *) child_task->fn_data;
+ /* If GOMP_PLUGIN_target_task_completion has run already
+ in between gomp_target_task_fn and the mutex lock,
+ perform the requeuing here. */
+ if (ttask->state == GOMP_TARGET_TASK_FINISHED)
+ gomp_target_task_completion (team, child_task);
+ else
+ ttask->state = GOMP_TARGET_TASK_RUNNING;
+ child_task = NULL;
+ continue;
+ }
+ }
+ else
+ child_task->fn (child_task->fn_data);
thr->task = task;
}
else
@@ -1184,7 +1818,7 @@ GOMP_taskgroup_end (void)
size_t new_tasks
= gomp_task_run_post_handle_depend (child_task, team);
gomp_task_run_post_remove_parent (child_task);
- gomp_clear_parent (child_task->children);
+ gomp_clear_parent (&child_task->children_queue);
gomp_task_run_post_remove_taskgroup (child_task);
to_free = child_task;
child_task = NULL;
--- libgomp/libgomp_g.h.jj 2014-05-15 10:56:31.429532978 +0200
+++ libgomp/libgomp_g.h 2016-07-13 16:57:04.422535521 +0200
@@ -29,6 +29,7 @@
#define LIBGOMP_G_H 1
#include <stdbool.h>
+#include <stddef.h>
/* barrier.c */
@@ -50,6 +51,10 @@ extern bool GOMP_loop_static_start (long
extern bool GOMP_loop_dynamic_start (long, long, long, long, long *, long *);
extern bool GOMP_loop_guided_start (long, long, long, long, long *, long *);
extern bool GOMP_loop_runtime_start (long, long, long, long *, long *);
+extern bool GOMP_loop_nonmonotonic_dynamic_start (long, long, long, long,
+ long *, long *);
+extern bool GOMP_loop_nonmonotonic_guided_start (long, long, long, long,
+ long *, long *);
extern bool GOMP_loop_ordered_static_start (long, long, long, long,
long *, long *);
@@ -63,12 +68,23 @@ extern bool GOMP_loop_static_next (long
extern bool GOMP_loop_dynamic_next (long *, long *);
extern bool GOMP_loop_guided_next (long *, long *);
extern bool GOMP_loop_runtime_next (long *, long *);
+extern bool GOMP_loop_nonmonotonic_dynamic_next (long *, long *);
+extern bool GOMP_loop_nonmonotonic_guided_next (long *, long *);
extern bool GOMP_loop_ordered_static_next (long *, long *);
extern bool GOMP_loop_ordered_dynamic_next (long *, long *);
extern bool GOMP_loop_ordered_guided_next (long *, long *);
extern bool GOMP_loop_ordered_runtime_next (long *, long *);
+extern bool GOMP_loop_doacross_static_start (unsigned, long *, long, long *,
+ long *);
+extern bool GOMP_loop_doacross_dynamic_start (unsigned, long *, long, long *,
+ long *);
+extern bool GOMP_loop_doacross_guided_start (unsigned, long *, long, long *,
+ long *);
+extern bool GOMP_loop_doacross_runtime_start (unsigned, long *, long *,
+ long *);
+
extern void GOMP_parallel_loop_static_start (void (*)(void *), void *,
unsigned, long, long, long, long);
extern void GOMP_parallel_loop_dynamic_start (void (*)(void *), void *,
@@ -89,6 +105,12 @@ extern void GOMP_parallel_loop_guided (v
extern void GOMP_parallel_loop_runtime (void (*)(void *), void *,
unsigned, long, long, long,
unsigned);
+extern void GOMP_parallel_loop_nonmonotonic_dynamic (void (*)(void *), void *,
+ unsigned, long, long,
+ long, long, unsigned);
+extern void GOMP_parallel_loop_nonmonotonic_guided (void (*)(void *), void *,
+ unsigned, long, long,
+ long, long, unsigned);
extern void GOMP_loop_end (void);
extern void GOMP_loop_end_nowait (void);
@@ -119,6 +141,18 @@ extern bool GOMP_loop_ull_runtime_start
unsigned long long,
unsigned long long *,
unsigned long long *);
+extern bool GOMP_loop_ull_nonmonotonic_dynamic_start (bool, unsigned long long,
+ unsigned long long,
+ unsigned long long,
+ unsigned long long,
+ unsigned long long *,
+ unsigned long long *);
+extern bool GOMP_loop_ull_nonmonotonic_guided_start (bool, unsigned long long,
+ unsigned long long,
+ unsigned long long,
+ unsigned long long,
+ unsigned long long *,
+ unsigned long long *);
extern bool GOMP_loop_ull_ordered_static_start (bool, unsigned long long,
unsigned long long,
@@ -152,6 +186,10 @@ extern bool GOMP_loop_ull_guided_next (u
unsigned long long *);
extern bool GOMP_loop_ull_runtime_next (unsigned long long *,
unsigned long long *);
+extern bool GOMP_loop_ull_nonmonotonic_dynamic_next (unsigned long long *,
+ unsigned long long *);
+extern bool GOMP_loop_ull_nonmonotonic_guided_next (unsigned long long *,
+ unsigned long long *);
extern bool GOMP_loop_ull_ordered_static_next (unsigned long long *,
unsigned long long *);
@@ -162,10 +200,34 @@ extern bool GOMP_loop_ull_ordered_guided
extern bool GOMP_loop_ull_ordered_runtime_next (unsigned long long *,
unsigned long long *);
+extern bool GOMP_loop_ull_doacross_static_start (unsigned,
+ unsigned long long *,
+ unsigned long long,
+ unsigned long long *,
+ unsigned long long *);
+extern bool GOMP_loop_ull_doacross_dynamic_start (unsigned,
+ unsigned long long *,
+ unsigned long long,
+ unsigned long long *,
+ unsigned long long *);
+extern bool GOMP_loop_ull_doacross_guided_start (unsigned,
+ unsigned long long *,
+ unsigned long long,
+ unsigned long long *,
+ unsigned long long *);
+extern bool GOMP_loop_ull_doacross_runtime_start (unsigned,
+ unsigned long long *,
+ unsigned long long *,
+ unsigned long long *);
+
/* ordered.c */
extern void GOMP_ordered_start (void);
extern void GOMP_ordered_end (void);
+extern void GOMP_doacross_post (long *);
+extern void GOMP_doacross_wait (long, ...);
+extern void GOMP_doacross_ull_post (unsigned long long *);
+extern void GOMP_doacross_ull_wait (unsigned long long, ...);
/* parallel.c */
@@ -178,7 +240,15 @@ extern bool GOMP_cancellation_point (int
/* task.c */
extern void GOMP_task (void (*) (void *), void *, void (*) (void *, void *),
- long, long, bool, unsigned, void **);
+ long, long, bool, unsigned, void **, int);
+extern void GOMP_taskloop (void (*) (void *), void *,
+ void (*) (void *, void *), long, long, unsigned,
+ unsigned long, int, long, long, long);
+extern void GOMP_taskloop_ull (void (*) (void *), void *,
+ void (*) (void *, void *), long, long,
+ unsigned, unsigned long, int,
+ unsigned long long, unsigned long long,
+ unsigned long long);
extern void GOMP_taskwait (void);
extern void GOMP_taskyield (void);
extern void GOMP_taskgroup_start (void);
@@ -206,11 +276,38 @@ extern void GOMP_single_copy_end (void *
extern void GOMP_target (int, void (*) (void *), const void *,
size_t, void **, size_t *, unsigned char *);
+extern void GOMP_target_ext (int, void (*) (void *), size_t, void **, size_t *,
+ unsigned short *, unsigned int, void **, void **);
extern void GOMP_target_data (int, const void *,
size_t, void **, size_t *, unsigned char *);
+extern void GOMP_target_data_ext (int, size_t, void **, size_t *,
+ unsigned short *);
extern void GOMP_target_end_data (void);
extern void GOMP_target_update (int, const void *,
size_t, void **, size_t *, unsigned char *);
+extern void GOMP_target_update_ext (int, size_t, void **, size_t *,
+ unsigned short *, unsigned int, void **);
+extern void GOMP_target_enter_exit_data (int, size_t, void **, size_t *,
+ unsigned short *, unsigned int,
+ void **);
extern void GOMP_teams (unsigned int, unsigned int);
+/* oacc-parallel.c */
+
+extern void GOACC_parallel_keyed (int, void (*) (void *), size_t,
+ void **, size_t *, unsigned short *, ...);
+extern void GOACC_parallel (int, void (*) (void *), size_t, void **, size_t *,
+ unsigned short *, int, int, int, int, int, ...);
+extern void GOACC_data_start (int, size_t, void **, size_t *,
+ unsigned short *);
+extern void GOACC_data_end (void);
+extern void GOACC_enter_exit_data (int, size_t, void **,
+ size_t *, unsigned short *, int, int, ...);
+extern void GOACC_update (int, size_t, void **, size_t *,
+ unsigned short *, int, int, ...);
+extern void GOACC_wait (int, int, ...);
+extern int GOACC_get_num_threads (void);
+extern int GOACC_get_thread_num (void);
+extern void GOACC_declare (int, size_t, void **, size_t *, unsigned short *);
+
#endif /* LIBGOMP_G_H */
--- libgomp/libgomp.h.jj 2014-08-01 15:59:49.145188127 +0200
+++ libgomp/libgomp.h 2016-07-14 17:40:24.038243456 +0200
@@ -34,12 +34,35 @@
#ifndef LIBGOMP_H
#define LIBGOMP_H 1
+#ifndef _LIBGOMP_CHECKING_
+/* Define to 1 to perform internal sanity checks. */
+#define _LIBGOMP_CHECKING_ 0
+#endif
+
#include "config.h"
#include "gstdint.h"
+#include "libgomp-plugin.h"
#include <pthread.h>
#include <stdbool.h>
#include <stdlib.h>
+#include <stdarg.h>
+
+/* Needed for memset in priority_queue.c. */
+#if _LIBGOMP_CHECKING_
+# ifdef STRING_WITH_STRINGS
+# include <string.h>
+# include <strings.h>
+# else
+# ifdef HAVE_STRING_H
+# include <string.h>
+# else
+# ifdef HAVE_STRINGS_H
+# include <strings.h>
+# endif
+# endif
+# endif
+#endif
#ifdef HAVE_ATTRIBUTE_VISIBILITY
# pragma GCC visibility push(hidden)
@@ -56,6 +79,44 @@ enum memmodel
MEMMODEL_SEQ_CST = 5
};
+/* alloc.c */
+
+extern void *gomp_malloc (size_t) __attribute__((malloc));
+extern void *gomp_malloc_cleared (size_t) __attribute__((malloc));
+extern void *gomp_realloc (void *, size_t);
+
+/* Avoid conflicting prototypes of alloca() in system headers by using
+ GCC's builtin alloca(). */
+#define gomp_alloca(x) __builtin_alloca(x)
+
+/* error.c */
+
+extern void gomp_vdebug (int, const char *, va_list);
+extern void gomp_debug (int, const char *, ...)
+ __attribute__ ((format (printf, 2, 3)));
+#define gomp_vdebug(KIND, FMT, VALIST) \
+ do { \
+ if (__builtin_expect (gomp_debug_var, 0)) \
+ (gomp_vdebug) ((KIND), (FMT), (VALIST)); \
+ } while (0)
+#define gomp_debug(KIND, ...) \
+ do { \
+ if (__builtin_expect (gomp_debug_var, 0)) \
+ (gomp_debug) ((KIND), __VA_ARGS__); \
+ } while (0)
+extern void gomp_verror (const char *, va_list);
+extern void gomp_error (const char *, ...)
+ __attribute__ ((format (printf, 1, 2)));
+extern void gomp_vfatal (const char *, va_list)
+ __attribute__ ((noreturn));
+extern void gomp_fatal (const char *, ...)
+ __attribute__ ((noreturn, format (printf, 1, 2)));
+
+struct gomp_task;
+struct gomp_taskgroup;
+struct htab;
+
+#include "priority_queue.h"
#include "sem.h"
#include "mutex.h"
#include "bar.h"
@@ -74,6 +135,44 @@ enum gomp_schedule_type
GFS_AUTO
};
+struct gomp_doacross_work_share
+{
+ union {
+ /* chunk_size copy, as ws->chunk_size is multiplied by incr for
+ GFS_DYNAMIC. */
+ long chunk_size;
+ /* Likewise, but for ull implementation. */
+ unsigned long long chunk_size_ull;
+ /* For schedule(static,0) this is the number
+ of iterations assigned to the last thread, i.e. number of
+ iterations / number of threads. */
+ long q;
+ /* Likewise, but for ull implementation. */
+ unsigned long long q_ull;
+ };
+ /* Size of each array entry (padded to cache line size). */
+ unsigned long elt_sz;
+ /* Number of dimensions in sink vectors. */
+ unsigned int ncounts;
+ /* True if the iterations can be flattened. */
+ bool flattened;
+ /* Actual array (of elt_sz sized units), aligned to cache line size.
+ This is indexed by team_id for GFS_STATIC and outermost iteration
+ / chunk_size for other schedules. */
+ unsigned char *array;
+ /* These two are only used for schedule(static,0). */
+ /* This one is number of iterations % number of threads. */
+ long t;
+ union {
+ /* And this one is cached t * (q + 1). */
+ long boundary;
+ /* Likewise, but for the ull implementation. */
+ unsigned long long boundary_ull;
+ };
+ /* Array of shift counts for each dimension if they can be flattened. */
+ unsigned int shift_counts[];
+};
+
struct gomp_work_share
{
/* This member records the SCHEDULE clause to be used for this construct.
@@ -105,13 +204,18 @@ struct gomp_work_share
};
};
- /* This is a circular queue that details which threads will be allowed
- into the ordered region and in which order. When a thread allocates
- iterations on which it is going to work, it also registers itself at
- the end of the array. When a thread reaches the ordered region, it
- checks to see if it is the one at the head of the queue. If not, it
- blocks on its RELEASE semaphore. */
- unsigned *ordered_team_ids;
+ union {
+ /* This is a circular queue that details which threads will be allowed
+ into the ordered region and in which order. When a thread allocates
+ iterations on which it is going to work, it also registers itself at
+ the end of the array. When a thread reaches the ordered region, it
+ checks to see if it is the one at the head of the queue. If not, it
+ blocks on its RELEASE semaphore. */
+ unsigned *ordered_team_ids;
+
+ /* This is a pointer to DOACROSS work share data. */
+ struct gomp_doacross_work_share *doacross;
+ };
/* This is the number of threads that have registered themselves in
the circular queue ordered_team_ids. */
@@ -230,7 +334,7 @@ struct gomp_task_icv
{
unsigned long nthreads_var;
enum gomp_schedule_type run_sched_var;
- int run_sched_modifier;
+ int run_sched_chunk_size;
int default_device_var;
unsigned int thread_limit_var;
bool dyn_var;
@@ -246,6 +350,7 @@ extern gomp_mutex_t gomp_managed_threads
#endif
extern unsigned long gomp_max_active_levels_var;
extern bool gomp_cancel_var;
+extern int gomp_max_task_priority_var;
extern unsigned long long gomp_spin_count_var, gomp_throttled_spin_count_var;
extern unsigned long gomp_available_cpus, gomp_managed_threads;
extern unsigned long *gomp_nthreads_var_list, gomp_nthreads_var_list_len;
@@ -253,25 +358,36 @@ extern char *gomp_bind_var_list;
extern unsigned long gomp_bind_var_list_len;
extern void **gomp_places_list;
extern unsigned long gomp_places_list_len;
+extern int gomp_debug_var;
+extern int goacc_device_num;
+extern char *goacc_device_type;
enum gomp_task_kind
{
+ /* Implicit task. */
GOMP_TASK_IMPLICIT,
- GOMP_TASK_IFFALSE,
+ /* Undeferred task. */
+ GOMP_TASK_UNDEFERRED,
+ /* Task created by GOMP_task and waiting to be run. */
GOMP_TASK_WAITING,
- GOMP_TASK_TIED
+ /* Task currently executing or scheduled and about to execute. */
+ GOMP_TASK_TIED,
+ /* Used for target tasks that have vars mapped and async run started,
+ but not yet completed. Once that completes, they will be readded
+ into the queues as GOMP_TASK_WAITING in order to perform the var
+ unmapping. */
+ GOMP_TASK_ASYNC_RUNNING
};
-struct gomp_task;
-struct gomp_taskgroup;
-struct htab;
-
struct gomp_task_depend_entry
{
+ /* Address of dependency. */
void *addr;
struct gomp_task_depend_entry *next;
struct gomp_task_depend_entry *prev;
+ /* Task that provides the dependency in ADDR. */
struct gomp_task *task;
+ /* Depend entry is of type "IN". */
bool is_in;
bool redundant;
bool redundant_out;
@@ -290,8 +406,8 @@ struct gomp_taskwait
{
bool in_taskwait;
bool in_depend_wait;
+ /* Number of tasks we are waiting for. */
size_t n_depend;
- struct gomp_task *last_parent_depends_on;
gomp_sem_t taskwait_sem;
};
@@ -299,20 +415,31 @@ struct gomp_taskwait
struct gomp_task
{
+ /* Parent of this task. */
struct gomp_task *parent;
- struct gomp_task *children;
- struct gomp_task *next_child;
- struct gomp_task *prev_child;
- struct gomp_task *next_queue;
- struct gomp_task *prev_queue;
- struct gomp_task *next_taskgroup;
- struct gomp_task *prev_taskgroup;
+ /* Children of this task. */
+ struct priority_queue children_queue;
+ /* Taskgroup this task belongs in. */
struct gomp_taskgroup *taskgroup;
+ /* Tasks that depend on this task. */
struct gomp_dependers_vec *dependers;
struct htab *depend_hash;
struct gomp_taskwait *taskwait;
+ /* Number of items in DEPEND. */
size_t depend_count;
+ /* Number of tasks this task depends on. Once this counter reaches
+ 0, we have no unsatisfied dependencies, and this task can be put
+ into the various queues to be scheduled. */
size_t num_dependees;
+
+ /* Priority of this task. */
+ int priority;
+ /* The priority node for this task in each of the different queues.
+ We put this here to avoid allocating space for each priority
+ node. Then we play offsetof() games to convert between pnode[]
+ entries and the gomp_task in which they reside. */
+ struct priority_node pnode[3];
+
struct gomp_task_icv icv;
void (*fn) (void *);
void *fn_data;
@@ -320,20 +447,58 @@ struct gomp_task
bool in_tied_task;
bool final_task;
bool copy_ctors_done;
+ /* Set for undeferred tasks with unsatisfied dependencies which
+ block further execution of their parent until the dependencies
+ are satisfied. */
bool parent_depends_on;
+ /* Dependencies provided and/or needed for this task. DEPEND_COUNT
+ is the number of items available. */
struct gomp_task_depend_entry depend[];
};
+/* This structure describes a single #pragma omp taskgroup. */
+
struct gomp_taskgroup
{
struct gomp_taskgroup *prev;
- struct gomp_task *children;
+ /* Queue of tasks that belong in this taskgroup. */
+ struct priority_queue taskgroup_queue;
bool in_taskgroup_wait;
bool cancelled;
gomp_sem_t taskgroup_sem;
size_t num_children;
};
+/* Various state of OpenMP async offloading tasks. */
+enum gomp_target_task_state
+{
+ GOMP_TARGET_TASK_DATA,
+ GOMP_TARGET_TASK_BEFORE_MAP,
+ GOMP_TARGET_TASK_FALLBACK,
+ GOMP_TARGET_TASK_READY_TO_RUN,
+ GOMP_TARGET_TASK_RUNNING,
+ GOMP_TARGET_TASK_FINISHED
+};
+
+/* This structure describes a target task. */
+
+struct gomp_target_task
+{
+ struct gomp_device_descr *devicep;
+ void (*fn) (void *);
+ size_t mapnum;
+ size_t *sizes;
+ unsigned short *kinds;
+ unsigned int flags;
+ enum gomp_target_task_state state;
+ struct target_mem_desc *tgt;
+ struct gomp_task *task;
+ struct gomp_team *team;
+ /* Device-specific target arguments. */
+ void **args;
+ void *hostaddrs[];
+};
+
/* This structure describes a "team" of threads. These are the threads
that are spawned by a PARALLEL constructs, as well as the work sharing
constructs that the team encounters. */
@@ -396,7 +561,8 @@ struct gomp_team
struct gomp_work_share work_shares[8];
gomp_mutex_t task_lock;
- struct gomp_task *task_queue;
+ /* Scheduled tasks. */
+ struct priority_queue task_queue;
/* Number of all GOMP_TASK_{WAITING,TIED} tasks in the team. */
unsigned int task_count;
/* Number of GOMP_TASK_WAITING tasks currently waiting to be scheduled. */
@@ -451,6 +617,9 @@ struct gomp_thread_pool
struct gomp_thread **threads;
unsigned threads_size;
unsigned threads_used;
+ /* The last team is used for non-nested teams to delay their destruction to
+ make sure all the threads in the team move on to the pool's barrier before
+ the team's barrier is destroyed. */
struct gomp_team *last_team;
/* Number of threads running in this contention group. */
unsigned long threads_busy;
@@ -519,23 +688,7 @@ extern bool gomp_affinity_same_place (vo
extern bool gomp_affinity_finalize_place_list (bool);
extern bool gomp_affinity_init_level (int, unsigned long, bool);
extern void gomp_affinity_print_place (void *);
-
-/* alloc.c */
-
-extern void *gomp_malloc (size_t) __attribute__((malloc));
-extern void *gomp_malloc_cleared (size_t) __attribute__((malloc));
-extern void *gomp_realloc (void *, size_t);
-
-/* Avoid conflicting prototypes of alloca() in system headers by using
- GCC's builtin alloca(). */
-#define gomp_alloca(x) __builtin_alloca(x)
-
-/* error.c */
-
-extern void gomp_error (const char *, ...)
- __attribute__((format (printf, 1, 2)));
-extern void gomp_fatal (const char *, ...)
- __attribute__((noreturn, format (printf, 1, 2)));
+extern void gomp_get_place_proc_ids_8 (int, int64_t *);
/* iter.c */
@@ -572,6 +725,9 @@ extern void gomp_ordered_next (void);
extern void gomp_ordered_static_init (void);
extern void gomp_ordered_static_next (void);
extern void gomp_ordered_sync (void);
+extern void gomp_doacross_init (unsigned, long *, long);
+extern void gomp_doacross_ull_init (unsigned, unsigned long long *,
+ unsigned long long);
/* parallel.c */
@@ -588,6 +744,12 @@ extern void gomp_init_task (struct gomp_
struct gomp_task_icv *);
extern void gomp_end_task (void);
extern void gomp_barrier_handle_tasks (gomp_barrier_state_t);
+extern void gomp_task_maybe_wait_for_dependencies (void **);
+extern bool gomp_create_target_task (struct gomp_device_descr *,
+ void (*) (void *), size_t, void **,
+ size_t *, unsigned short *, unsigned int,
+ void **, void **,
+ enum gomp_target_task_state);
static void inline
gomp_finish_task (struct gomp_task *task)
@@ -606,7 +768,213 @@ extern void gomp_free_thread (void *);
/* target.c */
+extern void gomp_init_targets_once (void);
extern int gomp_get_num_devices (void);
+extern bool gomp_target_task_fn (void *);
+
+/* Splay tree definitions. */
+typedef struct splay_tree_node_s *splay_tree_node;
+typedef struct splay_tree_s *splay_tree;
+typedef struct splay_tree_key_s *splay_tree_key;
+
+struct target_var_desc {
+ /* Splay key. */
+ splay_tree_key key;
+ /* True if data should be copied from device to host at the end. */
+ bool copy_from;
+ /* True if data always should be copied from device to host at the end. */
+ bool always_copy_from;
+ /* Relative offset against key host_start. */
+ uintptr_t offset;
+ /* Actual length. */
+ uintptr_t length;
+};
+
+struct target_mem_desc {
+ /* Reference count. */
+ uintptr_t refcount;
+ /* All the splay nodes allocated together. */
+ splay_tree_node array;
+ /* Start of the target region. */
+ uintptr_t tgt_start;
+ /* End of the targer region. */
+ uintptr_t tgt_end;
+ /* Handle to free. */
+ void *to_free;
+ /* Previous target_mem_desc. */
+ struct target_mem_desc *prev;
+ /* Number of items in following list. */
+ size_t list_count;
+
+ /* Corresponding target device descriptor. */
+ struct gomp_device_descr *device_descr;
+
+ /* List of target items to remove (or decrease refcount)
+ at the end of region. */
+ struct target_var_desc list[];
+};
+
+/* Special value for refcount - infinity. */
+#define REFCOUNT_INFINITY (~(uintptr_t) 0)
+/* Special value for refcount - tgt_offset contains target address of the
+ artificial pointer to "omp declare target link" object. */
+#define REFCOUNT_LINK (~(uintptr_t) 1)
+
+struct splay_tree_key_s {
+ /* Address of the host object. */
+ uintptr_t host_start;
+ /* Address immediately after the host object. */
+ uintptr_t host_end;
+ /* Descriptor of the target memory. */
+ struct target_mem_desc *tgt;
+ /* Offset from tgt->tgt_start to the start of the target object. */
+ uintptr_t tgt_offset;
+ /* Reference count. */
+ uintptr_t refcount;
+ /* Pointer to the original mapping of "omp declare target link" object. */
+ splay_tree_key link_key;
+};
+
+/* The comparison function. */
+
+static inline int
+splay_compare (splay_tree_key x, splay_tree_key y)
+{
+ if (x->host_start == x->host_end
+ && y->host_start == y->host_end)
+ return 0;
+ if (x->host_end <= y->host_start)
+ return -1;
+ if (x->host_start >= y->host_end)
+ return 1;
+ return 0;
+}
+
+#include "splay-tree.h"
+
+typedef struct acc_dispatch_t
+{
+ /* This is a linked list of data mapped using the
+ acc_map_data/acc_unmap_data or "acc enter data"/"acc exit data" pragmas.
+ Unlike mapped_data in the goacc_thread struct, unmapping can
+ happen out-of-order with respect to mapping. */
+ /* This is guarded by the lock in the "outer" struct gomp_device_descr. */
+ struct target_mem_desc *data_environ;
+
+ /* Execute. */
+ void (*exec_func) (void (*) (void *), size_t, void **, void **, int,
+ unsigned *, void *);
+
+ /* Async cleanup callback registration. */
+ void (*register_async_cleanup_func) (void *, int);
+
+ /* Asynchronous routines. */
+ int (*async_test_func) (int);
+ int (*async_test_all_func) (void);
+ void (*async_wait_func) (int);
+ void (*async_wait_async_func) (int, int);
+ void (*async_wait_all_func) (void);
+ void (*async_wait_all_async_func) (int);
+ void (*async_set_async_func) (int);
+
+ /* Create/destroy TLS data. */
+ void *(*create_thread_data_func) (int);
+ void (*destroy_thread_data_func) (void *);
+
+ /* NVIDIA target specific routines. */
+ struct {
+ void *(*get_current_device_func) (void);
+ void *(*get_current_context_func) (void);
+ void *(*get_stream_func) (int);
+ int (*set_stream_func) (int, void *);
+ } cuda;
+} acc_dispatch_t;
+
+/* Various state of the accelerator device. */
+enum gomp_device_state
+{
+ GOMP_DEVICE_UNINITIALIZED,
+ GOMP_DEVICE_INITIALIZED,
+ GOMP_DEVICE_FINALIZED
+};
+
+/* This structure describes accelerator device.
+ It contains name of the corresponding libgomp plugin, function handlers for
+ interaction with the device, ID-number of the device, and information about
+ mapped memory. */
+struct gomp_device_descr
+{
+ /* Immutable data, which is only set during initialization, and which is not
+ guarded by the lock. */
+
+ /* The name of the device. */
+ const char *name;
+
+ /* Capabilities of device (supports OpenACC, OpenMP). */
+ unsigned int capabilities;
+
+ /* This is the ID number of device among devices of the same type. */
+ int target_id;
+
+ /* This is the TYPE of device. */
+ enum offload_target_type type;
+
+ /* Function handlers. */
+ const char *(*get_name_func) (void);
+ unsigned int (*get_caps_func) (void);
+ int (*get_type_func) (void);
+ int (*get_num_devices_func) (void);
+ bool (*init_device_func) (int);
+ bool (*fini_device_func) (int);
+ unsigned (*version_func) (void);
+ int (*load_image_func) (int, unsigned, const void *, struct addr_pair **);
+ bool (*unload_image_func) (int, unsigned, const void *);
+ void *(*alloc_func) (int, size_t);
+ bool (*free_func) (int, void *);
+ bool (*dev2host_func) (int, void *, const void *, size_t);
+ bool (*host2dev_func) (int, void *, const void *, size_t);
+ bool (*dev2dev_func) (int, void *, const void *, size_t);
+ bool (*can_run_func) (void *);
+ void (*run_func) (int, void *, void *, void **);
+ void (*async_run_func) (int, void *, void *, void **, void *);
+
+ /* Splay tree containing information about mapped memory regions. */
+ struct splay_tree_s mem_map;
+
+ /* Mutex for the mutable data. */
+ gomp_mutex_t lock;
+
+ /* Current state of the device. OpenACC allows to move from INITIALIZED state
+ back to UNINITIALIZED state. OpenMP allows only to move from INITIALIZED
+ to FINALIZED state (at program shutdown). */
+ enum gomp_device_state state;
+
+ /* OpenACC-specific data and functions. */
+ /* This is mutable because of its mutable data_environ and target_data
+ members. */
+ acc_dispatch_t openacc;
+};
+
+/* Kind of the pragma, for which gomp_map_vars () is called. */
+enum gomp_map_vars_kind
+{
+ GOMP_MAP_VARS_OPENACC,
+ GOMP_MAP_VARS_TARGET,
+ GOMP_MAP_VARS_DATA,
+ GOMP_MAP_VARS_ENTER_DATA
+};
+
+extern void gomp_acc_insert_pointer (size_t, void **, size_t *, void *);
+extern void gomp_acc_remove_pointer (void *, bool, int, int);
+
+extern struct target_mem_desc *gomp_map_vars (struct gomp_device_descr *,
+ size_t, void **, void **,
+ size_t *, void *, bool,
+ enum gomp_map_vars_kind);
+extern void gomp_unmap_vars (struct target_mem_desc *, bool);
+extern void gomp_init_device (struct gomp_device_descr *);
+extern void gomp_free_memmap (struct splay_tree_s *);
+extern void gomp_unload_device (struct gomp_device_descr *);
/* work.c */
@@ -646,8 +1014,28 @@ typedef enum omp_proc_bind_t
omp_proc_bind_spread = 4
} omp_proc_bind_t;
+typedef enum omp_lock_hint_t
+{
+ omp_lock_hint_none = 0,
+ omp_lock_hint_uncontended = 1,
+ omp_lock_hint_contended = 2,
+ omp_lock_hint_nonspeculative = 4,
+ omp_lock_hint_speculative = 8,
+} omp_lock_hint_t;
+
+extern void omp_init_lock_with_hint (omp_lock_t *, omp_lock_hint_t)
+ __GOMP_NOTHROW;
+extern void omp_init_nest_lock_with_hint (omp_lock_t *, omp_lock_hint_t)
+ __GOMP_NOTHROW;
+
extern int omp_get_cancellation (void) __GOMP_NOTHROW;
extern omp_proc_bind_t omp_get_proc_bind (void) __GOMP_NOTHROW;
+extern int omp_get_num_places (void) __GOMP_NOTHROW;
+extern int omp_get_place_num_procs (int) __GOMP_NOTHROW;
+extern void omp_get_place_proc_ids (int, int *) __GOMP_NOTHROW;
+extern int omp_get_place_num (void) __GOMP_NOTHROW;
+extern int omp_get_partition_num_places (void) __GOMP_NOTHROW;
+extern void omp_get_partition_place_nums (int *) __GOMP_NOTHROW;
extern void omp_set_default_device (int) __GOMP_NOTHROW;
extern int omp_get_default_device (void) __GOMP_NOTHROW;
@@ -656,6 +1044,24 @@ extern int omp_get_num_teams (void) __GO
extern int omp_get_team_num (void) __GOMP_NOTHROW;
extern int omp_is_initial_device (void) __GOMP_NOTHROW;
+extern int omp_get_initial_device (void) __GOMP_NOTHROW;
+extern int omp_get_max_task_priority (void) __GOMP_NOTHROW;
+
+extern void *omp_target_alloc (__SIZE_TYPE__, int) __GOMP_NOTHROW;
+extern void omp_target_free (void *, int) __GOMP_NOTHROW;
+extern int omp_target_is_present (void *, int) __GOMP_NOTHROW;
+extern int omp_target_memcpy (void *, void *, __SIZE_TYPE__, __SIZE_TYPE__,
+ __SIZE_TYPE__, int, int) __GOMP_NOTHROW;
+extern int omp_target_memcpy_rect (void *, void *, __SIZE_TYPE__, int,
+ const __SIZE_TYPE__ *,
+ const __SIZE_TYPE__ *,
+ const __SIZE_TYPE__ *,
+ const __SIZE_TYPE__ *,
+ const __SIZE_TYPE__ *, int, int)
+ __GOMP_NOTHROW;
+extern int omp_target_associate_ptr (void *, void *, __SIZE_TYPE__,
+ __SIZE_TYPE__, int) __GOMP_NOTHROW;
+extern int omp_target_disassociate_ptr (void *, int) __GOMP_NOTHROW;
#if !defined (HAVE_ATTRIBUTE_VISIBILITY) \
|| !defined (HAVE_ATTRIBUTE_ALIAS) \
@@ -728,4 +1134,34 @@ extern int gomp_test_nest_lock_25 (omp_n
# define ialias_call(fn) fn
#endif
+/* Helper function for priority_node_to_task() and
+ task_to_priority_node().
+
+ Return the offset from a task to its priority_node entry. The
+ priority_node entry is has a type of TYPE. */
+
+static inline size_t
+priority_queue_offset (enum priority_queue_type type)
+{
+ return offsetof (struct gomp_task, pnode[(int) type]);
+}
+
+/* Return the task associated with a priority NODE of type TYPE. */
+
+static inline struct gomp_task *
+priority_node_to_task (enum priority_queue_type type,
+ struct priority_node *node)
+{
+ return (struct gomp_task *) ((char *) node - priority_queue_offset (type));
+}
+
+/* Return the priority node of type TYPE for a given TASK. */
+
+static inline struct priority_node *
+task_to_priority_node (enum priority_queue_type type,
+ struct gomp_task *task)
+{
+ return (struct priority_node *) ((char *) task
+ + priority_queue_offset (type));
+}
#endif /* LIBGOMP_H */
--- libgomp/env.c.jj 2014-05-15 10:56:32.420522486 +0200
+++ libgomp/env.c 2016-07-13 16:57:04.437535335 +0200
@@ -27,6 +27,8 @@
#include "libgomp.h"
#include "libgomp_f.h"
+#include "oacc-int.h"
+#include "gomp-constants.h"
#include <ctype.h>
#include <stdlib.h>
#include <stdio.h>
@@ -56,7 +58,7 @@ struct gomp_task_icv gomp_global_icv = {
.nthreads_var = 1,
.thread_limit_var = UINT_MAX,
.run_sched_var = GFS_DYNAMIC,
- .run_sched_modifier = 1,
+ .run_sched_chunk_size = 1,
.default_device_var = 0,
.dyn_var = false,
.nest_var = false,
@@ -66,6 +68,7 @@ struct gomp_task_icv gomp_global_icv = {
unsigned long gomp_max_active_levels_var = INT_MAX;
bool gomp_cancel_var = false;
+int gomp_max_task_priority_var = 0;
#ifndef HAVE_SYNC_BUILTINS
gomp_mutex_t gomp_managed_threads_lock;
#endif
@@ -76,6 +79,9 @@ char *gomp_bind_var_list;
unsigned long gomp_bind_var_list_len;
void **gomp_places_list;
unsigned long gomp_places_list_len;
+int gomp_debug_var;
+char *goacc_device_type;
+int goacc_device_num;
/* Parse the OMP_SCHEDULE environment variable. */
@@ -118,7 +124,7 @@ parse_schedule (void)
++env;
if (*env == '\0')
{
- gomp_global_icv.run_sched_modifier
+ gomp_global_icv.run_sched_chunk_size
= gomp_global_icv.run_sched_var != GFS_STATIC;
return;
}
@@ -144,7 +150,7 @@ parse_schedule (void)
if (value == 0 && gomp_global_icv.run_sched_var != GFS_STATIC)
value = 1;
- gomp_global_icv.run_sched_modifier = value;
+ gomp_global_icv.run_sched_chunk_size = value;
return;
unknown:
@@ -1011,6 +1017,16 @@ parse_affinity (bool ignore)
return false;
}
+static void
+parse_acc_device_type (void)
+{
+ const char *env = getenv ("ACC_DEVICE_TYPE");
+
+ if (env && *env != '\0')
+ goacc_device_type = strdup (env);
+ else
+ goacc_device_type = NULL;
+}
static void
handle_omp_display_env (unsigned long stacksize, int wait_policy)
@@ -1054,7 +1070,7 @@ handle_omp_display_env (unsigned long st
fputs ("\nOPENMP DISPLAY ENVIRONMENT BEGIN\n", stderr);
- fputs (" _OPENMP = '201307'\n", stderr);
+ fputs (" _OPENMP = '201511'\n", stderr);
fprintf (stderr, " OMP_DYNAMIC = '%s'\n",
gomp_global_icv.dyn_var ? "TRUE" : "FALSE");
fprintf (stderr, " OMP_NESTED = '%s'\n",
@@ -1142,6 +1158,8 @@ handle_omp_display_env (unsigned long st
gomp_cancel_var ? "TRUE" : "FALSE");
fprintf (stderr, " OMP_DEFAULT_DEVICE = '%d'\n",
gomp_global_icv.default_device_var);
+ fprintf (stderr, " OMP_MAX_TASK_PRIORITY = '%d'\n",
+ gomp_max_task_priority_var);
if (verbose)
{
@@ -1174,6 +1192,7 @@ initialize_env (void)
parse_boolean ("OMP_NESTED", &gomp_global_icv.nest_var);
parse_boolean ("OMP_CANCELLATION", &gomp_cancel_var);
parse_int ("OMP_DEFAULT_DEVICE", &gomp_global_icv.default_device_var, true);
+ parse_int ("OMP_MAX_TASK_PRIORITY", &gomp_max_task_priority_var, true);
parse_unsigned_long ("OMP_MAX_ACTIVE_LEVELS", &gomp_max_active_levels_var,
true);
if (parse_unsigned_long ("OMP_THREAD_LIMIT", &thread_limit_var, false))
@@ -1181,6 +1200,7 @@ initialize_env (void)
gomp_global_icv.thread_limit_var
= thread_limit_var > INT_MAX ? UINT_MAX : thread_limit_var;
}
+ parse_int ("GOMP_DEBUG", &gomp_debug_var, true);
#ifndef HAVE_SYNC_BUILTINS
gomp_mutex_init (&gomp_managed_threads_lock);
#endif
@@ -1271,6 +1291,15 @@ initialize_env (void)
}
handle_omp_display_env (stacksize, wait_policy);
+
+ /* OpenACC. */
+
+ if (!parse_int ("ACC_DEVICE_NUM", &goacc_device_num, true))
+ goacc_device_num = 0;
+
+ parse_acc_device_type ();
+
+ goacc_runtime_initialize ();
}
@@ -1312,21 +1341,21 @@ omp_get_nested (void)
}
void
-omp_set_schedule (omp_sched_t kind, int modifier)
+omp_set_schedule (omp_sched_t kind, int chunk_size)
{
struct gomp_task_icv *icv = gomp_icv (true);
switch (kind)
{
case omp_sched_static:
- if (modifier < 1)
- modifier = 0;
- icv->run_sched_modifier = modifier;
+ if (chunk_size < 1)
+ chunk_size = 0;
+ icv->run_sched_chunk_size = chunk_size;
break;
case omp_sched_dynamic:
case omp_sched_guided:
- if (modifier < 1)
- modifier = 1;
- icv->run_sched_modifier = modifier;
+ if (chunk_size < 1)
+ chunk_size = 1;
+ icv->run_sched_chunk_size = chunk_size;
break;
case omp_sched_auto:
break;
@@ -1337,11 +1366,11 @@ omp_set_schedule (omp_sched_t kind, int
}
void
-omp_get_schedule (omp_sched_t *kind, int *modifier)
+omp_get_schedule (omp_sched_t *kind, int *chunk_size)
{
struct gomp_task_icv *icv = gomp_icv (false);
*kind = icv->run_sched_var;
- *modifier = icv->run_sched_modifier;
+ *chunk_size = icv->run_sched_chunk_size;
}
int
@@ -1377,6 +1406,12 @@ omp_get_cancellation (void)
return gomp_cancel_var;
}
+int
+omp_get_max_task_priority (void)
+{
+ return gomp_max_task_priority_var;
+}
+
omp_proc_bind_t
omp_get_proc_bind (void)
{
@@ -1425,6 +1460,59 @@ omp_is_initial_device (void)
return 1;
}
+int
+omp_get_initial_device (void)
+{
+ return GOMP_DEVICE_HOST_FALLBACK;
+}
+
+int
+omp_get_num_places (void)
+{
+ return gomp_places_list_len;
+}
+
+int
+omp_get_place_num (void)
+{
+ if (gomp_places_list == NULL)
+ return -1;
+
+ struct gomp_thread *thr = gomp_thread ();
+ if (thr->place == 0)
+ gomp_init_affinity ();
+
+ return (int) thr->place - 1;
+}
+
+int
+omp_get_partition_num_places (void)
+{
+ if (gomp_places_list == NULL)
+ return 0;
+
+ struct gomp_thread *thr = gomp_thread ();
+ if (thr->place == 0)
+ gomp_init_affinity ();
+
+ return thr->ts.place_partition_len;
+}
+
+void
+omp_get_partition_place_nums (int *place_nums)
+{
+ if (gomp_places_list == NULL)
+ return;
+
+ struct gomp_thread *thr = gomp_thread ();
+ if (thr->place == 0)
+ gomp_init_affinity ();
+
+ unsigned int i;
+ for (i = 0; i < thr->ts.place_partition_len; i++)
+ *place_nums++ = thr->ts.place_partition_off + i;
+}
+
ialias (omp_set_dynamic)
ialias (omp_set_nested)
ialias (omp_set_num_threads)
@@ -1444,3 +1532,9 @@ ialias (omp_get_num_devices)
ialias (omp_get_num_teams)
ialias (omp_get_team_num)
ialias (omp_is_initial_device)
+ialias (omp_get_initial_device)
+ialias (omp_get_max_task_priority)
+ialias (omp_get_num_places)
+ialias (omp_get_place_num)
+ialias (omp_get_partition_num_places)
+ialias (omp_get_partition_place_nums)
--- libgomp/openacc.h.jj 2016-07-13 16:57:04.432535397 +0200
+++ libgomp/openacc.h 2016-07-13 16:57:04.432535397 +0200
@@ -0,0 +1,131 @@
+/* OpenACC Runtime Library User-facing Declarations
+
+ Copyright (C) 2013-2016 Free Software Foundation, Inc.
+
+ Contributed by Mentor Embedded.
+
+ This file is part of the GNU Offloading and Multi Processing Library
+ (libgomp).
+
+ Libgomp is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3, or (at your option)
+ any later version.
+
+ Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY
+ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ more details.
+
+ Under Section 7 of GPL version 3, you are granted additional
+ permissions described in the GCC Runtime Library Exception, version
+ 3.1, as published by the Free Software Foundation.
+
+ You should have received a copy of the GNU General Public License and
+ a copy of the GCC Runtime Library Exception along with this program;
+ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _OPENACC_H
+#define _OPENACC_H 1
+
+/* The OpenACC standard is silent on whether or not including <openacc.h>
+ might or must not include other header files. We chose to include
+ some. */
+#include <stddef.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if __cplusplus >= 201103
+# define __GOACC_NOTHROW noexcept
+#elif __cplusplus
+# define __GOACC_NOTHROW throw ()
+#else /* Not C++ */
+# define __GOACC_NOTHROW __attribute__ ((__nothrow__))
+#endif
+
+/* Types */
+typedef enum acc_device_t {
+ /* Keep in sync with include/gomp-constants.h. */
+ acc_device_none = 0,
+ acc_device_default = 1,
+ acc_device_host = 2,
+ /* acc_device_host_nonshm = 3 removed. */
+ acc_device_not_host = 4,
+ acc_device_nvidia = 5,
+ _ACC_device_hwm,
+ /* Ensure enumeration is layout compatible with int. */
+ _ACC_highest = __INT_MAX__,
+ _ACC_neg = -1
+} acc_device_t;
+
+typedef enum acc_async_t {
+ /* Keep in sync with include/gomp-constants.h. */
+ acc_async_noval = -1,
+ acc_async_sync = -2
+} acc_async_t;
+
+int acc_get_num_devices (acc_device_t) __GOACC_NOTHROW;
+void acc_set_device_type (acc_device_t) __GOACC_NOTHROW;
+acc_device_t acc_get_device_type (void) __GOACC_NOTHROW;
+void acc_set_device_num (int, acc_device_t) __GOACC_NOTHROW;
+int acc_get_device_num (acc_device_t) __GOACC_NOTHROW;
+int acc_async_test (int) __GOACC_NOTHROW;
+int acc_async_test_all (void) __GOACC_NOTHROW;
+void acc_wait (int) __GOACC_NOTHROW;
+void acc_wait_async (int, int) __GOACC_NOTHROW;
+void acc_wait_all (void) __GOACC_NOTHROW;
+void acc_wait_all_async (int) __GOACC_NOTHROW;
+void acc_init (acc_device_t) __GOACC_NOTHROW;
+void acc_shutdown (acc_device_t) __GOACC_NOTHROW;
+#ifdef __cplusplus
+int acc_on_device (int __arg) __GOACC_NOTHROW;
+#else
+int acc_on_device (acc_device_t __arg) __GOACC_NOTHROW;
+#endif
+void *acc_malloc (size_t) __GOACC_NOTHROW;
+void acc_free (void *) __GOACC_NOTHROW;
+/* Some of these would be more correct with const qualifiers, but
+ the standard specifies otherwise. */
+void *acc_copyin (void *, size_t) __GOACC_NOTHROW;
+void *acc_present_or_copyin (void *, size_t) __GOACC_NOTHROW;
+void *acc_create (void *, size_t) __GOACC_NOTHROW;
+void *acc_present_or_create (void *, size_t) __GOACC_NOTHROW;
+void acc_copyout (void *, size_t) __GOACC_NOTHROW;
+void acc_delete (void *, size_t) __GOACC_NOTHROW;
+void acc_update_device (void *, size_t) __GOACC_NOTHROW;
+void acc_update_self (void *, size_t) __GOACC_NOTHROW;
+void acc_map_data (void *, void *, size_t) __GOACC_NOTHROW;
+void acc_unmap_data (void *) __GOACC_NOTHROW;
+void *acc_deviceptr (void *) __GOACC_NOTHROW;
+void *acc_hostptr (void *) __GOACC_NOTHROW;
+int acc_is_present (void *, size_t) __GOACC_NOTHROW;
+void acc_memcpy_to_device (void *, void *, size_t) __GOACC_NOTHROW;
+void acc_memcpy_from_device (void *, void *, size_t) __GOACC_NOTHROW;
+
+/* Old names. OpenACC does not specify whether these can or must
+ not be macros, inlines or aliases for the new names. */
+#define acc_pcreate acc_present_or_create
+#define acc_pcopyin acc_present_or_copyin
+
+/* CUDA-specific routines. */
+void *acc_get_current_cuda_device (void) __GOACC_NOTHROW;
+void *acc_get_current_cuda_context (void) __GOACC_NOTHROW;
+void *acc_get_cuda_stream (int) __GOACC_NOTHROW;
+int acc_set_cuda_stream (int, void *) __GOACC_NOTHROW;
+
+#ifdef __cplusplus
+}
+
+/* Forwarding function with correctly typed arg. */
+
+#pragma acc routine seq
+inline int acc_on_device (acc_device_t __arg) __GOACC_NOTHROW
+{
+ return acc_on_device ((int) __arg);
+}
+#endif
+
+#endif /* _OPENACC_H */
--- libgomp/config/linux/doacross.h.jj 2016-07-13 16:57:18.902355979 +0200
+++ libgomp/config/linux/doacross.h 2016-07-13 16:57:18.902355979 +0200
@@ -0,0 +1,57 @@
+/* Copyright (C) 2015-2016 Free Software Foundation, Inc.
+ Contributed by Jakub Jelinek <jakub@redhat.com>.
+
+ This file is part of the GNU Offloading and Multi Processing Library
+ (libgomp).
+
+ Libgomp is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3, or (at your option)
+ any later version.
+
+ Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY
+ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ more details.
+
+ Under Section 7 of GPL version 3, you are granted additional
+ permissions described in the GCC Runtime Library Exception, version
+ 3.1, as published by the Free Software Foundation.
+
+ You should have received a copy of the GNU General Public License and
+ a copy of the GCC Runtime Library Exception along with this program;
+ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+/* This is a Linux specific implementation of doacross spinning. */
+
+#ifndef GOMP_DOACROSS_H
+#define GOMP_DOACROSS_H 1
+
+#include "libgomp.h"
+#include <errno.h>
+#include "wait.h"
+
+#ifdef HAVE_ATTRIBUTE_VISIBILITY
+# pragma GCC visibility push(hidden)
+#endif
+
+static inline void doacross_spin (unsigned long *addr, unsigned long expected,
+ unsigned long cur)
+{
+ /* FIXME: back off depending on how large expected - cur is. */
+ do
+ {
+ cpu_relax ();
+ cur = __atomic_load_n (addr, MEMMODEL_RELAXED);
+ if (expected < cur)
+ return;
+ }
+ while (1);
+}
+
+#ifdef HAVE_ATTRIBUTE_VISIBILITY
+# pragma GCC visibility pop
+#endif
+
+#endif /* GOMP_DOACROSS_H */
--- libgomp/config/posix/doacross.h.jj 2016-07-13 16:57:18.903355966 +0200
+++ libgomp/config/posix/doacross.h 2016-07-13 16:57:18.903355966 +0200
@@ -0,0 +1,62 @@
+/* Copyright (C) 2015-2016 Free Software Foundation, Inc.
+ Contributed by Jakub Jelinek <jakub@redhat.com>.
+
+ This file is part of the GNU Offloading and Multi Processing Library
+ (libgomp).
+
+ Libgomp is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3, or (at your option)
+ any later version.
+
+ Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY
+ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ more details.
+
+ Under Section 7 of GPL version 3, you are granted additional
+ permissions described in the GCC Runtime Library Exception, version
+ 3.1, as published by the Free Software Foundation.
+
+ You should have received a copy of the GNU General Public License and
+ a copy of the GCC Runtime Library Exception along with this program;
+ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+/* This is a generic implementation of doacross spinning. */
+
+#ifndef GOMP_DOACROSS_H
+#define GOMP_DOACROSS_H 1
+
+#include "libgomp.h"
+#include <errno.h>
+
+#ifdef HAVE_ATTRIBUTE_VISIBILITY
+# pragma GCC visibility push(hidden)
+#endif
+
+static inline void
+cpu_relax (void)
+{
+ __asm volatile ("" : : : "memory");
+}
+
+static inline void doacross_spin (unsigned long *addr, unsigned long expected,
+ unsigned long cur)
+{
+ /* FIXME: back off depending on how large expected - cur is. */
+ do
+ {
+ cpu_relax ();
+ cur = __atomic_load_n (addr, MEMMODEL_RELAXED);
+ if (expected < cur)
+ return;
+ }
+ while (1);
+}
+
+#ifdef HAVE_ATTRIBUTE_VISIBILITY
+# pragma GCC visibility pop
+#endif
+
+#endif /* GOMP_DOACROSS_H */
--- libgomp/splay-tree.c.jj 2016-07-13 16:57:18.919355768 +0200
+++ libgomp/splay-tree.c 2016-07-13 16:57:18.919355768 +0200
@@ -0,0 +1,238 @@
+/* A splay-tree datatype.
+ Copyright (C) 1998-2016 Free Software Foundation, Inc.
+ Contributed by Mark Mitchell (mark@markmitchell.com).
+
+ This file is part of the GNU Offloading and Multi Processing Library
+ (libgomp).
+
+ Libgomp is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3, or (at your option)
+ any later version.
+
+ Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY
+ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ more details.
+
+ Under Section 7 of GPL version 3, you are granted additional
+ permissions described in the GCC Runtime Library Exception, version
+ 3.1, as published by the Free Software Foundation.
+
+ You should have received a copy of the GNU General Public License and
+ a copy of the GCC Runtime Library Exception along with this program;
+ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+/* The splay tree code copied from include/splay-tree.h and adjusted,
+ so that all the data lives directly in splay_tree_node_s structure
+ and no extra allocations are needed. */
+
+/* For an easily readable description of splay-trees, see:
+
+ Lewis, Harry R. and Denenberg, Larry. Data Structures and Their
+ Algorithms. Harper-Collins, Inc. 1991.
+
+ The major feature of splay trees is that all basic tree operations
+ are amortized O(log n) time for a tree with n nodes. */
+
+#include "libgomp.h"
+
+/* Rotate the edge joining the left child N with its parent P. PP is the
+ grandparents' pointer to P. */
+
+static inline void
+rotate_left (splay_tree_node *pp, splay_tree_node p, splay_tree_node n)
+{
+ splay_tree_node tmp;
+ tmp = n->right;
+ n->right = p;
+ p->left = tmp;
+ *pp = n;
+}
+
+/* Rotate the edge joining the right child N with its parent P. PP is the
+ grandparents' pointer to P. */
+
+static inline void
+rotate_right (splay_tree_node *pp, splay_tree_node p, splay_tree_node n)
+{
+ splay_tree_node tmp;
+ tmp = n->left;
+ n->left = p;
+ p->right = tmp;
+ *pp = n;
+}
+
+/* Bottom up splay of KEY. */
+
+static void
+splay_tree_splay (splay_tree sp, splay_tree_key key)
+{
+ if (sp->root == NULL)
+ return;
+
+ do {
+ int cmp1, cmp2;
+ splay_tree_node n, c;
+
+ n = sp->root;
+ cmp1 = splay_compare (key, &n->key);
+
+ /* Found. */
+ if (cmp1 == 0)
+ return;
+
+ /* Left or right? If no child, then we're done. */
+ if (cmp1 < 0)
+ c = n->left;
+ else
+ c = n->right;
+ if (!c)
+ return;
+
+ /* Next one left or right? If found or no child, we're done
+ after one rotation. */
+ cmp2 = splay_compare (key, &c->key);
+ if (cmp2 == 0
+ || (cmp2 < 0 && !c->left)
+ || (cmp2 > 0 && !c->right))
+ {
+ if (cmp1 < 0)
+ rotate_left (&sp->root, n, c);
+ else
+ rotate_right (&sp->root, n, c);
+ return;
+ }
+
+ /* Now we have the four cases of double-rotation. */
+ if (cmp1 < 0 && cmp2 < 0)
+ {
+ rotate_left (&n->left, c, c->left);
+ rotate_left (&sp->root, n, n->left);
+ }
+ else if (cmp1 > 0 && cmp2 > 0)
+ {
+ rotate_right (&n->right, c, c->right);
+ rotate_right (&sp->root, n, n->right);
+ }
+ else if (cmp1 < 0 && cmp2 > 0)
+ {
+ rotate_right (&n->left, c, c->right);
+ rotate_left (&sp->root, n, n->left);
+ }
+ else if (cmp1 > 0 && cmp2 < 0)
+ {
+ rotate_left (&n->right, c, c->left);
+ rotate_right (&sp->root, n, n->right);
+ }
+ } while (1);
+}
+
+/* Insert a new NODE into SP. The NODE shouldn't exist in the tree. */
+
+attribute_hidden void
+splay_tree_insert (splay_tree sp, splay_tree_node node)
+{
+ int comparison = 0;
+
+ splay_tree_splay (sp, &node->key);
+
+ if (sp->root)
+ comparison = splay_compare (&sp->root->key, &node->key);
+
+ if (sp->root && comparison == 0)
+ gomp_fatal ("Duplicate node");
+ else
+ {
+ /* Insert it at the root. */
+ if (sp->root == NULL)
+ node->left = node->right = NULL;
+ else if (comparison < 0)
+ {
+ node->left = sp->root;
+ node->right = node->left->right;
+ node->left->right = NULL;
+ }
+ else
+ {
+ node->right = sp->root;
+ node->left = node->right->left;
+ node->right->left = NULL;
+ }
+
+ sp->root = node;
+ }
+}
+
+/* Remove node with KEY from SP. It is not an error if it did not exist. */
+
+attribute_hidden void
+splay_tree_remove (splay_tree sp, splay_tree_key key)
+{
+ splay_tree_splay (sp, key);
+
+ if (sp->root && splay_compare (&sp->root->key, key) == 0)
+ {
+ splay_tree_node left, right;
+
+ left = sp->root->left;
+ right = sp->root->right;
+
+ /* One of the children is now the root. Doesn't matter much
+ which, so long as we preserve the properties of the tree. */
+ if (left)
+ {
+ sp->root = left;
+
+ /* If there was a right child as well, hang it off the
+ right-most leaf of the left child. */
+ if (right)
+ {
+ while (left->right)
+ left = left->right;
+ left->right = right;
+ }
+ }
+ else
+ sp->root = right;
+ }
+}
+
+/* Lookup KEY in SP, returning NODE if present, and NULL
+ otherwise. */
+
+attribute_hidden splay_tree_key
+splay_tree_lookup (splay_tree sp, splay_tree_key key)
+{
+ splay_tree_splay (sp, key);
+
+ if (sp->root && splay_compare (&sp->root->key, key) == 0)
+ return &sp->root->key;
+ else
+ return NULL;
+}
+
+/* Helper function for splay_tree_foreach.
+
+ Run FUNC on every node in KEY. */
+
+static void
+splay_tree_foreach_internal (splay_tree_node node, splay_tree_callback func,
+ void *data)
+{
+ if (!node)
+ return;
+ func (&node->key, data);
+ splay_tree_foreach_internal (node->left, func, data);
+ /* Yeah, whatever. GCC can fix my tail recursion. */
+ splay_tree_foreach_internal (node->right, func, data);
+}
+
+/* Run FUNC on each of the nodes in SP. */
+
+attribute_hidden void
+splay_tree_foreach (splay_tree sp, splay_tree_callback func, void *data)
+{
+ splay_tree_foreach_internal (sp->root, func, data);
+}
--- libgomp/libgomp-plugin.c.jj 2016-07-13 16:57:04.435535360 +0200
+++ libgomp/libgomp-plugin.c 2016-07-13 16:57:04.435535360 +0200
@@ -0,0 +1,80 @@
+/* Copyright (C) 2014-2016 Free Software Foundation, Inc.
+
+ Contributed by Mentor Embedded.
+
+ This file is part of the GNU Offloading and Multi Processing Library
+ (libgomp).
+
+ Libgomp is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3, or (at your option)
+ any later version.
+
+ Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY
+ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ more details.
+
+ Under Section 7 of GPL version 3, you are granted additional
+ permissions described in the GCC Runtime Library Exception, version
+ 3.1, as published by the Free Software Foundation.
+
+ You should have received a copy of the GNU General Public License and
+ a copy of the GCC Runtime Library Exception along with this program;
+ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+/* Exported (non-hidden) functions exposing libgomp interface for plugins. */
+
+#include <stdlib.h>
+
+#include "libgomp.h"
+#include "libgomp-plugin.h"
+
+void *
+GOMP_PLUGIN_malloc (size_t size)
+{
+ return gomp_malloc (size);
+}
+
+void *
+GOMP_PLUGIN_malloc_cleared (size_t size)
+{
+ return gomp_malloc_cleared (size);
+}
+
+void *
+GOMP_PLUGIN_realloc (void *ptr, size_t size)
+{
+ return gomp_realloc (ptr, size);
+}
+
+void
+GOMP_PLUGIN_debug (int kind, const char *msg, ...)
+{
+ va_list ap;
+
+ va_start (ap, msg);
+ gomp_vdebug (kind, msg, ap);
+ va_end (ap);
+}
+
+void
+GOMP_PLUGIN_error (const char *msg, ...)
+{
+ va_list ap;
+
+ va_start (ap, msg);
+ gomp_verror (msg, ap);
+ va_end (ap);
+}
+
+void
+GOMP_PLUGIN_fatal (const char *msg, ...)
+{
+ va_list ap;
+
+ va_start (ap, msg);
+ gomp_vfatal (msg, ap);
+ va_end (ap);
+}
--- libgomp/libgomp-plugin.h.jj 2016-07-13 16:57:04.438535323 +0200
+++ libgomp/libgomp-plugin.h 2016-07-13 16:57:04.438535323 +0200
@@ -0,0 +1,80 @@
+/* Copyright (C) 2014-2016 Free Software Foundation, Inc.
+
+ Contributed by Mentor Embedded.
+
+ This file is part of the GNU Offloading and Multi Processing Library
+ (libgomp).
+
+ Libgomp is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3, or (at your option)
+ any later version.
+
+ Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY
+ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ more details.
+
+ Under Section 7 of GPL version 3, you are granted additional
+ permissions described in the GCC Runtime Library Exception, version
+ 3.1, as published by the Free Software Foundation.
+
+ You should have received a copy of the GNU General Public License and
+ a copy of the GCC Runtime Library Exception along with this program;
+ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+/* An interface to various libgomp-internal functions for use by plugins. */
+
+#ifndef LIBGOMP_PLUGIN_H
+#define LIBGOMP_PLUGIN_H 1
+
+#include <stddef.h>
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Capabilities of offloading devices. */
+#define GOMP_OFFLOAD_CAP_SHARED_MEM (1 << 0)
+#define GOMP_OFFLOAD_CAP_NATIVE_EXEC (1 << 1)
+#define GOMP_OFFLOAD_CAP_OPENMP_400 (1 << 2)
+#define GOMP_OFFLOAD_CAP_OPENACC_200 (1 << 3)
+
+/* Type of offload target device. Keep in sync with include/gomp-constants.h. */
+enum offload_target_type
+{
+ OFFLOAD_TARGET_TYPE_HOST = 2,
+ /* OFFLOAD_TARGET_TYPE_HOST_NONSHM = 3 removed. */
+ OFFLOAD_TARGET_TYPE_NVIDIA_PTX = 5,
+ OFFLOAD_TARGET_TYPE_INTEL_MIC = 6,
+ OFFLOAD_TARGET_TYPE_HSA = 7
+};
+
+/* Auxiliary struct, used for transferring pairs of addresses from plugin
+ to libgomp. */
+struct addr_pair
+{
+ uintptr_t start;
+ uintptr_t end;
+};
+
+/* Miscellaneous functions. */
+extern void *GOMP_PLUGIN_malloc (size_t) __attribute__ ((malloc));
+extern void *GOMP_PLUGIN_malloc_cleared (size_t) __attribute__ ((malloc));
+extern void *GOMP_PLUGIN_realloc (void *, size_t);
+void GOMP_PLUGIN_target_task_completion (void *);
+
+extern void GOMP_PLUGIN_debug (int, const char *, ...)
+ __attribute__ ((format (printf, 2, 3)));
+extern void GOMP_PLUGIN_error (const char *, ...)
+ __attribute__ ((format (printf, 1, 2)));
+extern void GOMP_PLUGIN_fatal (const char *, ...)
+ __attribute__ ((noreturn, format (printf, 1, 2)));
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
--- libgomp/oacc-async.c.jj 2016-07-13 16:57:13.488423109 +0200
+++ libgomp/oacc-async.c 2016-07-13 16:57:13.488423109 +0200
@@ -0,0 +1,107 @@
+/* OpenACC Runtime Library Definitions.
+
+ Copyright (C) 2013-2016 Free Software Foundation, Inc.
+
+ Contributed by Mentor Embedded.
+
+ This file is part of the GNU Offloading and Multi Processing Library
+ (libgomp).
+
+ Libgomp is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3, or (at your option)
+ any later version.
+
+ Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY
+ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ more details.
+
+ Under Section 7 of GPL version 3, you are granted additional
+ permissions described in the GCC Runtime Library Exception, version
+ 3.1, as published by the Free Software Foundation.
+
+ You should have received a copy of the GNU General Public License and
+ a copy of the GCC Runtime Library Exception along with this program;
+ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <assert.h>
+#include "openacc.h"
+#include "libgomp.h"
+#include "oacc-int.h"
+
+int
+acc_async_test (int async)
+{
+ if (async < acc_async_sync)
+ gomp_fatal ("invalid async argument: %d", async);
+
+ struct goacc_thread *thr = goacc_thread ();
+
+ if (!thr || !thr->dev)
+ gomp_fatal ("no device active");
+
+ return thr->dev->openacc.async_test_func (async);
+}
+
+int
+acc_async_test_all (void)
+{
+ struct goacc_thread *thr = goacc_thread ();
+
+ if (!thr || !thr->dev)
+ gomp_fatal ("no device active");
+
+ return thr->dev->openacc.async_test_all_func ();
+}
+
+void
+acc_wait (int async)
+{
+ if (async < acc_async_sync)
+ gomp_fatal ("invalid async argument: %d", async);
+
+ struct goacc_thread *thr = goacc_thread ();
+
+ if (!thr || !thr->dev)
+ gomp_fatal ("no device active");
+
+ thr->dev->openacc.async_wait_func (async);
+}
+
+void
+acc_wait_async (int async1, int async2)
+{
+ struct goacc_thread *thr = goacc_thread ();
+
+ if (!thr || !thr->dev)
+ gomp_fatal ("no device active");
+
+ thr->dev->openacc.async_wait_async_func (async1, async2);
+}
+
+void
+acc_wait_all (void)
+{
+ struct goacc_thread *thr = goacc_thread ();
+
+ if (!thr || !thr->dev)
+ gomp_fatal ("no device active");
+
+ thr->dev->openacc.async_wait_all_func ();
+}
+
+void
+acc_wait_all_async (int async)
+{
+ if (async < acc_async_sync)
+ gomp_fatal ("invalid async argument: %d", async);
+
+ struct goacc_thread *thr = goacc_thread ();
+
+ if (!thr || !thr->dev)
+ gomp_fatal ("no device active");
+
+ thr->dev->openacc.async_wait_all_async_func (async);
+}
--- libgomp/splay-tree.h.jj 2016-07-13 16:57:18.934355582 +0200
+++ libgomp/splay-tree.h 2016-07-13 16:57:18.934355582 +0200
@@ -0,0 +1,130 @@
+/* A splay-tree datatype.
+ Copyright (C) 1998-2016 Free Software Foundation, Inc.
+ Contributed by Mark Mitchell (mark@markmitchell.com).
+
+ This file is part of the GNU Offloading and Multi Processing Library
+ (libgomp).
+
+ Libgomp is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3, or (at your option)
+ any later version.
+
+ Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY
+ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ more details.
+
+ Under Section 7 of GPL version 3, you are granted additional
+ permissions described in the GCC Runtime Library Exception, version
+ 3.1, as published by the Free Software Foundation.
+
+ You should have received a copy of the GNU General Public License and
+ a copy of the GCC Runtime Library Exception along with this program;
+ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+/* The splay tree code copied from include/splay-tree.h and adjusted,
+ so that all the data lives directly in splay_tree_node_s structure
+ and no extra allocations are needed.
+
+ Files including this header should before including it add:
+typedef struct splay_tree_node_s *splay_tree_node;
+typedef struct splay_tree_s *splay_tree;
+typedef struct splay_tree_key_s *splay_tree_key;
+ define splay_tree_key_s structure, and define
+ splay_compare inline function.
+
+ Alternatively, they can define splay_tree_prefix macro before
+ including this header and then all the above types, the
+ splay_compare function and the splay_tree_{lookup,insert_remove}
+ function will be prefixed by that prefix. If splay_tree_prefix
+ macro is defined, this header must be included twice: once where
+ you need the header file definitions, and once where you need the
+ .c implementation routines. In the latter case, you must also
+ define the macro splay_tree_c. See the include of splay-tree.h in
+ priority_queue.[hc] for an example. */
+
+/* For an easily readable description of splay-trees, see:
+
+ Lewis, Harry R. and Denenberg, Larry. Data Structures and Their
+ Algorithms. Harper-Collins, Inc. 1991.
+
+ The major feature of splay trees is that all basic tree operations
+ are amortized O(log n) time for a tree with n nodes. */
+
+#ifdef splay_tree_prefix
+# define splay_tree_name_1(prefix, name) prefix ## _ ## name
+# define splay_tree_name(prefix, name) splay_tree_name_1 (prefix, name)
+# define splay_tree_node_s \
+ splay_tree_name (splay_tree_prefix, splay_tree_node_s)
+# define splay_tree_s \
+ splay_tree_name (splay_tree_prefix, splay_tree_s)
+# define splay_tree_key_s \
+ splay_tree_name (splay_tree_prefix, splay_tree_key_s)
+# define splay_tree_node \
+ splay_tree_name (splay_tree_prefix, splay_tree_node)
+# define splay_tree \
+ splay_tree_name (splay_tree_prefix, splay_tree)
+# define splay_tree_key \
+ splay_tree_name (splay_tree_prefix, splay_tree_key)
+# define splay_compare \
+ splay_tree_name (splay_tree_prefix, splay_compare)
+# define splay_tree_lookup \
+ splay_tree_name (splay_tree_prefix, splay_tree_lookup)
+# define splay_tree_insert \
+ splay_tree_name (splay_tree_prefix, splay_tree_insert)
+# define splay_tree_remove \
+ splay_tree_name (splay_tree_prefix, splay_tree_remove)
+# define splay_tree_foreach \
+ splay_tree_name (splay_tree_prefix, splay_tree_foreach)
+# define splay_tree_callback \
+ splay_tree_name (splay_tree_prefix, splay_tree_callback)
+#endif
+
+#ifndef splay_tree_c
+/* Header file definitions and prototypes. */
+
+/* The nodes in the splay tree. */
+struct splay_tree_node_s {
+ struct splay_tree_key_s key;
+ /* The left and right children, respectively. */
+ splay_tree_node left;
+ splay_tree_node right;
+};
+
+/* The splay tree. */
+struct splay_tree_s {
+ splay_tree_node root;
+};
+
+typedef void (*splay_tree_callback) (splay_tree_key, void *);
+
+extern splay_tree_key splay_tree_lookup (splay_tree, splay_tree_key);
+extern void splay_tree_insert (splay_tree, splay_tree_node);
+extern void splay_tree_remove (splay_tree, splay_tree_key);
+extern void splay_tree_foreach (splay_tree, splay_tree_callback, void *);
+#else /* splay_tree_c */
+# ifdef splay_tree_prefix
+# include "splay-tree.c"
+# undef splay_tree_name_1
+# undef splay_tree_name
+# undef splay_tree_node_s
+# undef splay_tree_s
+# undef splay_tree_key_s
+# undef splay_tree_node
+# undef splay_tree
+# undef splay_tree_key
+# undef splay_compare
+# undef splay_tree_lookup
+# undef splay_tree_insert
+# undef splay_tree_remove
+# undef splay_tree_foreach
+# undef splay_tree_callback
+# undef splay_tree_c
+# endif
+#endif /* #ifndef splay_tree_c */
+
+#ifdef splay_tree_prefix
+# undef splay_tree_prefix
+#endif
--- libgomp/oacc-plugin.c.jj 2016-07-13 16:57:13.481423196 +0200
+++ libgomp/oacc-plugin.c 2016-07-14 15:40:21.653151873 +0200
@@ -0,0 +1,44 @@
+/* Copyright (C) 2014-2016 Free Software Foundation, Inc.
+
+ Contributed by Mentor Embedded.
+
+ This file is part of the GNU Offloading and Multi Processing Library
+ (libgomp).
+
+ Libgomp is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3, or (at your option)
+ any later version.
+
+ Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY
+ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ more details.
+
+ Under Section 7 of GPL version 3, you are granted additional
+ permissions described in the GCC Runtime Library Exception, version
+ 3.1, as published by the Free Software Foundation.
+
+ You should have received a copy of the GNU General Public License and
+ a copy of the GCC Runtime Library Exception along with this program;
+ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+/* Initialize and register OpenACC dispatch table from libgomp plugin. */
+
+#include "libgomp.h"
+#include "oacc-plugin.h"
+#include "oacc-int.h"
+
+void
+GOMP_PLUGIN_async_unmap_vars (void *ptr, int async)
+{
+}
+
+/* Return the target-specific part of the TLS data for the current thread. */
+
+void *
+GOMP_PLUGIN_acc_thread (void)
+{
+ return NULL;
+}
--- libgomp/oacc-init.c.jj 2016-07-13 16:57:04.423535509 +0200
+++ libgomp/oacc-init.c 2016-07-14 19:06:41.679575688 +0200
@@ -0,0 +1,640 @@
+/* OpenACC Runtime initialization routines
+
+ Copyright (C) 2013-2016 Free Software Foundation, Inc.
+
+ Contributed by Mentor Embedded.
+
+ This file is part of the GNU Offloading and Multi Processing Library
+ (libgomp).
+
+ Libgomp is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3, or (at your option)
+ any later version.
+
+ Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY
+ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ more details.
+
+ Under Section 7 of GPL version 3, you are granted additional
+ permissions described in the GCC Runtime Library Exception, version
+ 3.1, as published by the Free Software Foundation.
+
+ You should have received a copy of the GNU General Public License and
+ a copy of the GCC Runtime Library Exception along with this program;
+ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include "libgomp.h"
+#include "oacc-int.h"
+#include "openacc.h"
+#include <assert.h>
+#include <stdlib.h>
+#include <strings.h>
+#include <stdbool.h>
+#include <string.h>
+
+/* This lock is used to protect access to cached_base_dev, dispatchers and
+ the (abstract) initialisation state of attached offloading devices. */
+
+static gomp_mutex_t acc_device_lock;
+
+/* A cached version of the dispatcher for the global "current" accelerator type,
+ e.g. used as the default when creating new host threads. This is the
+ device-type equivalent of goacc_device_num (which specifies which device to
+ use out of potentially several of the same type). If there are several
+ devices of a given type, this points at the first one. */
+
+static struct gomp_device_descr *cached_base_dev = NULL;
+
+#if defined HAVE_TLS || defined USE_EMUTLS
+__thread struct goacc_thread *goacc_tls_data;
+#else
+pthread_key_t goacc_tls_key;
+#endif
+static pthread_key_t goacc_cleanup_key;
+
+static struct goacc_thread *goacc_threads;
+static gomp_mutex_t goacc_thread_lock;
+
+/* An array of dispatchers for device types, indexed by the type. This array
+ only references "base" devices, and other instances of the same type are
+ found by simply indexing from each such device (which are stored linearly,
+ grouped by device in target.c:devices). */
+static struct gomp_device_descr *dispatchers[_ACC_device_hwm] = { 0 };
+
+attribute_hidden void
+goacc_register (struct gomp_device_descr *disp)
+{
+ /* Only register the 0th device here. */
+ if (disp->target_id != 0)
+ return;
+
+ gomp_mutex_lock (&acc_device_lock);
+
+ assert (acc_device_type (disp->type) != acc_device_none
+ && acc_device_type (disp->type) != acc_device_default
+ && acc_device_type (disp->type) != acc_device_not_host);
+ assert (!dispatchers[disp->type]);
+ dispatchers[disp->type] = disp;
+
+ gomp_mutex_unlock (&acc_device_lock);
+}
+
+static const char *
+name_of_acc_device_t (enum acc_device_t type)
+{
+ switch (type)
+ {
+ case acc_device_none: return "none";
+ case acc_device_default: return "default";
+ case acc_device_host: return "host";
+ case acc_device_not_host: return "not_host";
+ case acc_device_nvidia: return "nvidia";
+ default: gomp_fatal ("unknown device type %u", (unsigned) type);
+ }
+}
+
+/* ACC_DEVICE_LOCK must be held before calling this function. If FAIL_IS_ERROR
+ is true, this function raises an error if there are no devices of type D,
+ otherwise it returns NULL in that case. */
+
+static struct gomp_device_descr *
+resolve_device (acc_device_t d, bool fail_is_error)
+{
+ acc_device_t d_arg = d;
+
+ switch (d)
+ {
+ case acc_device_default:
+ {
+ if (goacc_device_type)
+ {
+ /* Lookup the named device. */
+ if (!strcasecmp (goacc_device_type, "host"))
+ {
+ d = acc_device_host;
+ goto found;
+ }
+
+ if (fail_is_error)
+ {
+ gomp_mutex_unlock (&acc_device_lock);
+ gomp_fatal ("device type %s not supported", goacc_device_type);
+ }
+ else
+ return NULL;
+ }
+
+ /* No default device specified, so start scanning for any non-host
+ device that is available. */
+ d = acc_device_not_host;
+ }
+ /* FALLTHROUGH */
+
+ case acc_device_not_host:
+ if (d_arg == acc_device_default)
+ {
+ d = acc_device_host;
+ goto found;
+ }
+ if (fail_is_error)
+ {
+ gomp_mutex_unlock (&acc_device_lock);
+ gomp_fatal ("no device found");
+ }
+ else
+ return NULL;
+ break;
+
+ case acc_device_host:
+ break;
+
+ default:
+ if (d > _ACC_device_hwm)
+ {
+ if (fail_is_error)
+ goto unsupported_device;
+ else
+ return NULL;
+ }
+ break;
+ }
+ found:
+
+ assert (d != acc_device_none
+ && d != acc_device_default
+ && d != acc_device_not_host);
+
+ if (dispatchers[d] == NULL && fail_is_error)
+ {
+ unsupported_device:
+ gomp_mutex_unlock (&acc_device_lock);
+ gomp_fatal ("device type %s not supported", name_of_acc_device_t (d));
+ }
+
+ return dispatchers[d];
+}
+
+/* Emit a suitable error if no device of a particular type is available, or
+ the given device number is out-of-range. */
+static void
+acc_dev_num_out_of_range (acc_device_t d, int ord, int ndevs)
+{
+ if (ndevs == 0)
+ gomp_fatal ("no devices of type %s available", name_of_acc_device_t (d));
+ else
+ gomp_fatal ("device %u out of range", ord);
+}
+
+/* This is called when plugins have been initialized, and serves to call
+ (indirectly) the target's device_init hook. Calling multiple times without
+ an intervening acc_shutdown_1 call is an error. ACC_DEVICE_LOCK must be
+ held before calling this function. */
+
+static struct gomp_device_descr *
+acc_init_1 (acc_device_t d)
+{
+ struct gomp_device_descr *base_dev, *acc_dev;
+ int ndevs;
+
+ base_dev = resolve_device (d, true);
+
+ ndevs = base_dev->get_num_devices_func ();
+
+ if (ndevs <= 0 || goacc_device_num >= ndevs)
+ acc_dev_num_out_of_range (d, goacc_device_num, ndevs);
+
+ acc_dev = &base_dev[goacc_device_num];
+
+ gomp_mutex_lock (&acc_dev->lock);
+ if (acc_dev->state == GOMP_DEVICE_INITIALIZED)
+ {
+ gomp_mutex_unlock (&acc_dev->lock);
+ gomp_fatal ("device already active");
+ }
+
+ gomp_init_device (acc_dev);
+ gomp_mutex_unlock (&acc_dev->lock);
+
+ return base_dev;
+}
+
+/* ACC_DEVICE_LOCK must be held before calling this function. */
+
+static void
+acc_shutdown_1 (acc_device_t d)
+{
+ struct gomp_device_descr *base_dev;
+ struct goacc_thread *walk;
+ int ndevs, i;
+ bool devices_active = false;
+
+ /* Get the base device for this device type. */
+ base_dev = resolve_device (d, true);
+
+ ndevs = base_dev->get_num_devices_func ();
+
+ gomp_mutex_lock (&goacc_thread_lock);
+
+ /* Free target-specific TLS data and close all devices. */
+ for (walk = goacc_threads; walk != NULL; walk = walk->next)
+ {
+ if (walk->target_tls)
+ base_dev->openacc.destroy_thread_data_func (walk->target_tls);
+
+ walk->target_tls = NULL;
+
+ /* Similarly, if this happens then user code has done something weird. */
+ if (walk->saved_bound_dev)
+ {
+ gomp_mutex_unlock (&goacc_thread_lock);
+ gomp_fatal ("shutdown during host fallback");
+ }
+
+ if (walk->dev)
+ {
+ gomp_mutex_lock (&walk->dev->lock);
+ gomp_free_memmap (&walk->dev->mem_map);
+ gomp_mutex_unlock (&walk->dev->lock);
+
+ walk->dev = NULL;
+ walk->base_dev = NULL;
+ }
+ }
+
+ gomp_mutex_unlock (&goacc_thread_lock);
+
+ /* Close all the devices of this type that have been opened. */
+ bool ret = true;
+ for (i = 0; i < ndevs; i++)
+ {
+ struct gomp_device_descr *acc_dev = &base_dev[i];
+ gomp_mutex_lock (&acc_dev->lock);
+ if (acc_dev->state == GOMP_DEVICE_INITIALIZED)
+ {
+ devices_active = true;
+ ret &= acc_dev->fini_device_func (acc_dev->target_id);
+ acc_dev->state = GOMP_DEVICE_UNINITIALIZED;
+ }
+ gomp_mutex_unlock (&acc_dev->lock);
+ }
+
+ if (!ret)
+ gomp_fatal ("device finalization failed");
+
+ if (!devices_active)
+ gomp_fatal ("no device initialized");
+}
+
+static struct goacc_thread *
+goacc_new_thread (void)
+{
+ struct goacc_thread *thr = gomp_malloc (sizeof (struct gomp_thread));
+
+#if defined HAVE_TLS || defined USE_EMUTLS
+ goacc_tls_data = thr;
+#else
+ pthread_setspecific (goacc_tls_key, thr);
+#endif
+
+ pthread_setspecific (goacc_cleanup_key, thr);
+
+ gomp_mutex_lock (&goacc_thread_lock);
+ thr->next = goacc_threads;
+ goacc_threads = thr;
+ gomp_mutex_unlock (&goacc_thread_lock);
+
+ return thr;
+}
+
+static void
+goacc_destroy_thread (void *data)
+{
+ struct goacc_thread *thr = data, *walk, *prev;
+
+ gomp_mutex_lock (&goacc_thread_lock);
+
+ if (thr)
+ {
+ struct gomp_device_descr *acc_dev = thr->dev;
+
+ if (acc_dev && thr->target_tls)
+ {
+ acc_dev->openacc.destroy_thread_data_func (thr->target_tls);
+ thr->target_tls = NULL;
+ }
+
+ assert (!thr->mapped_data);
+
+ /* Remove from thread list. */
+ for (prev = NULL, walk = goacc_threads; walk;
+ prev = walk, walk = walk->next)
+ if (walk == thr)
+ {
+ if (prev == NULL)
+ goacc_threads = walk->next;
+ else
+ prev->next = walk->next;
+
+ free (thr);
+
+ break;
+ }
+
+ assert (walk);
+ }
+
+ gomp_mutex_unlock (&goacc_thread_lock);
+}
+
+/* Use the ORD'th device instance for the current host thread (or -1 for the
+ current global default). The device (and the runtime) must be initialised
+ before calling this function. */
+
+void
+goacc_attach_host_thread_to_device (int ord)
+{
+ struct goacc_thread *thr = goacc_thread ();
+ struct gomp_device_descr *acc_dev = NULL, *base_dev = NULL;
+ int num_devices;
+
+ if (thr && thr->dev && (thr->dev->target_id == ord || ord < 0))
+ return;
+
+ if (ord < 0)
+ ord = goacc_device_num;
+
+ /* Decide which type of device to use. If the current thread has a device
+ type already (e.g. set by acc_set_device_type), use that, else use the
+ global default. */
+ if (thr && thr->base_dev)
+ base_dev = thr->base_dev;
+ else
+ {
+ assert (cached_base_dev);
+ base_dev = cached_base_dev;
+ }
+
+ num_devices = base_dev->get_num_devices_func ();
+ if (num_devices <= 0 || ord >= num_devices)
+ acc_dev_num_out_of_range (acc_device_type (base_dev->type), ord,
+ num_devices);
+
+ if (!thr)
+ thr = goacc_new_thread ();
+
+ thr->base_dev = base_dev;
+ thr->dev = acc_dev = &base_dev[ord];
+ thr->saved_bound_dev = NULL;
+
+ thr->target_tls
+ = acc_dev->openacc.create_thread_data_func (ord);
+
+ acc_dev->openacc.async_set_async_func (acc_async_sync);
+}
+
+/* OpenACC 2.0a (3.2.12, 3.2.13) doesn't specify whether the serialization of
+ init/shutdown is per-process or per-thread. We choose per-process. */
+
+void
+acc_init (acc_device_t d)
+{
+ gomp_mutex_lock (&acc_device_lock);
+
+ cached_base_dev = acc_init_1 (d);
+
+ gomp_mutex_unlock (&acc_device_lock);
+
+ goacc_attach_host_thread_to_device (-1);
+}
+
+ialias (acc_init)
+
+void
+acc_shutdown (acc_device_t d)
+{
+ gomp_mutex_lock (&acc_device_lock);
+
+ acc_shutdown_1 (d);
+
+ gomp_mutex_unlock (&acc_device_lock);
+}
+
+ialias (acc_shutdown)
+
+int
+acc_get_num_devices (acc_device_t d)
+{
+ int n = 0;
+ struct gomp_device_descr *acc_dev;
+
+ if (d == acc_device_none)
+ return 0;
+
+ gomp_mutex_lock (&acc_device_lock);
+ acc_dev = resolve_device (d, false);
+ gomp_mutex_unlock (&acc_device_lock);
+
+ if (!acc_dev)
+ return 0;
+
+ n = acc_dev->get_num_devices_func ();
+ if (n < 0)
+ n = 0;
+
+ return n;
+}
+
+ialias (acc_get_num_devices)
+
+/* Set the device type for the current thread only (using the current global
+ default device number), initialising that device if necessary. Also set the
+ default device type for new threads to D. */
+
+void
+acc_set_device_type (acc_device_t d)
+{
+ struct gomp_device_descr *base_dev, *acc_dev;
+ struct goacc_thread *thr = goacc_thread ();
+
+ gomp_mutex_lock (&acc_device_lock);
+
+ cached_base_dev = base_dev = resolve_device (d, true);
+ acc_dev = &base_dev[goacc_device_num];
+
+ gomp_mutex_lock (&acc_dev->lock);
+ if (acc_dev->state == GOMP_DEVICE_UNINITIALIZED)
+ gomp_init_device (acc_dev);
+ gomp_mutex_unlock (&acc_dev->lock);
+
+ gomp_mutex_unlock (&acc_device_lock);
+
+ /* We're changing device type: invalidate the current thread's dev and
+ base_dev pointers. */
+ if (thr && thr->base_dev != base_dev)
+ {
+ thr->base_dev = thr->dev = NULL;
+ }
+
+ goacc_attach_host_thread_to_device (-1);
+}
+
+ialias (acc_set_device_type)
+
+acc_device_t
+acc_get_device_type (void)
+{
+ acc_device_t res = acc_device_none;
+ struct gomp_device_descr *dev;
+ struct goacc_thread *thr = goacc_thread ();
+
+ if (thr && thr->base_dev)
+ res = acc_device_type (thr->base_dev->type);
+ else
+ {
+ gomp_mutex_lock (&acc_device_lock);
+ dev = resolve_device (acc_device_default, true);
+ gomp_mutex_unlock (&acc_device_lock);
+ res = acc_device_type (dev->type);
+ }
+
+ assert (res != acc_device_default
+ && res != acc_device_not_host);
+
+ return res;
+}
+
+ialias (acc_get_device_type)
+
+int
+acc_get_device_num (acc_device_t d)
+{
+ const struct gomp_device_descr *dev;
+ struct goacc_thread *thr = goacc_thread ();
+
+ if (d >= _ACC_device_hwm)
+ gomp_fatal ("unknown device type %u", (unsigned) d);
+
+ gomp_mutex_lock (&acc_device_lock);
+ dev = resolve_device (d, true);
+ gomp_mutex_unlock (&acc_device_lock);
+
+ if (thr && thr->base_dev == dev && thr->dev)
+ return thr->dev->target_id;
+
+ return goacc_device_num;
+}
+
+ialias (acc_get_device_num)
+
+void
+acc_set_device_num (int ord, acc_device_t d)
+{
+ struct gomp_device_descr *base_dev, *acc_dev;
+ int num_devices;
+
+ if (ord < 0)
+ ord = goacc_device_num;
+
+ if ((int) d == 0)
+ /* Set whatever device is being used by the current host thread to use
+ device instance ORD. It's unclear if this is supposed to affect other
+ host threads too (OpenACC 2.0 (3.2.4) acc_set_device_num). */
+ goacc_attach_host_thread_to_device (ord);
+ else
+ {
+ gomp_mutex_lock (&acc_device_lock);
+
+ cached_base_dev = base_dev = resolve_device (d, true);
+
+ num_devices = base_dev->get_num_devices_func ();
+
+ if (num_devices <= 0 || ord >= num_devices)
+ acc_dev_num_out_of_range (d, ord, num_devices);
+
+ acc_dev = &base_dev[ord];
+
+ gomp_mutex_lock (&acc_dev->lock);
+ if (acc_dev->state == GOMP_DEVICE_UNINITIALIZED)
+ gomp_init_device (acc_dev);
+ gomp_mutex_unlock (&acc_dev->lock);
+
+ gomp_mutex_unlock (&acc_device_lock);
+
+ goacc_attach_host_thread_to_device (ord);
+ }
+
+ goacc_device_num = ord;
+}
+
+ialias (acc_set_device_num)
+
+int
+acc_on_device (acc_device_t dev)
+{
+ return dev == acc_device_host || dev == acc_device_none;
+}
+
+ialias (acc_on_device)
+
+attribute_hidden void
+goacc_runtime_initialize (void)
+{
+ gomp_mutex_init (&acc_device_lock);
+
+#if !(defined HAVE_TLS || defined USE_EMUTLS)
+ pthread_key_create (&goacc_tls_key, NULL);
+#endif
+
+ pthread_key_create (&goacc_cleanup_key, goacc_destroy_thread);
+
+ cached_base_dev = NULL;
+
+ goacc_threads = NULL;
+ gomp_mutex_init (&goacc_thread_lock);
+
+ /* Initialize and register the 'host' device type. */
+ goacc_host_init ();
+}
+
+/* Compiler helper functions */
+
+attribute_hidden void
+goacc_save_and_set_bind (acc_device_t d)
+{
+ struct goacc_thread *thr = goacc_thread ();
+
+ assert (!thr->saved_bound_dev);
+
+ thr->saved_bound_dev = thr->dev;
+ thr->dev = dispatchers[d];
+}
+
+attribute_hidden void
+goacc_restore_bind (void)
+{
+ struct goacc_thread *thr = goacc_thread ();
+
+ thr->dev = thr->saved_bound_dev;
+ thr->saved_bound_dev = NULL;
+}
+
+/* This is called from any OpenACC support function that may need to implicitly
+ initialize the libgomp runtime, either globally or from a new host thread.
+ On exit "goacc_thread" will return a valid & populated thread block. */
+
+attribute_hidden void
+goacc_lazy_initialize (void)
+{
+ struct goacc_thread *thr = goacc_thread ();
+
+ if (thr && thr->dev)
+ return;
+
+ if (!cached_base_dev)
+ acc_init (acc_device_default);
+ else
+ goacc_attach_host_thread_to_device (-1);
+}
--- libgomp/oacc-int.h.jj 2016-07-13 16:57:04.400535794 +0200
+++ libgomp/oacc-int.h 2016-07-13 16:57:04.400535794 +0200
@@ -0,0 +1,106 @@
+/* OpenACC Runtime - internal declarations
+
+ Copyright (C) 2013-2016 Free Software Foundation, Inc.
+
+ Contributed by Mentor Embedded.
+
+ This file is part of the GNU Offloading and Multi Processing Library
+ (libgomp).
+
+ Libgomp is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3, or (at your option)
+ any later version.
+
+ Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY
+ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ more details.
+
+ Under Section 7 of GPL version 3, you are granted additional
+ permissions described in the GCC Runtime Library Exception, version
+ 3.1, as published by the Free Software Foundation.
+
+ You should have received a copy of the GNU General Public License and
+ a copy of the GCC Runtime Library Exception along with this program;
+ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+/* This file contains data types and function declarations that are not
+ part of the official OpenACC user interface. There are declarations
+ in here that are part of the GNU OpenACC ABI, in that the compiler is
+ required to know about them and use them.
+
+ The convention is that the all caps prefix "GOACC" is used group items
+ that are part of the external ABI, and the lower case prefix "goacc"
+ is used group items that are completely private to the library. */
+
+#ifndef OACC_INT_H
+#define OACC_INT_H 1
+
+#include "openacc.h"
+#include "config.h"
+#include <stddef.h>
+#include <stdbool.h>
+#include <stdarg.h>
+
+#ifdef HAVE_ATTRIBUTE_VISIBILITY
+# pragma GCC visibility push(hidden)
+#endif
+
+static inline enum acc_device_t
+acc_device_type (enum offload_target_type type)
+{
+ return (enum acc_device_t) type;
+}
+
+struct goacc_thread
+{
+ /* The base device for the current thread. */
+ struct gomp_device_descr *base_dev;
+
+ /* The device for the current thread. */
+ struct gomp_device_descr *dev;
+
+ struct gomp_device_descr *saved_bound_dev;
+
+ /* This is a linked list of data mapped by the "acc data" pragma, following
+ strictly push/pop semantics according to lexical scope. */
+ struct target_mem_desc *mapped_data;
+
+ /* These structures form a list: this is the next thread in that list. */
+ struct goacc_thread *next;
+
+ /* Target-specific data (used by plugin). */
+ void *target_tls;
+};
+
+#if defined HAVE_TLS || defined USE_EMUTLS
+extern __thread struct goacc_thread *goacc_tls_data;
+static inline struct goacc_thread *
+goacc_thread (void)
+{
+ return goacc_tls_data;
+}
+#else
+extern pthread_key_t goacc_tls_key;
+static inline struct goacc_thread *
+goacc_thread (void)
+{
+ return pthread_getspecific (goacc_tls_key);
+}
+#endif
+
+void goacc_register (struct gomp_device_descr *) __GOACC_NOTHROW;
+void goacc_attach_host_thread_to_device (int);
+void goacc_runtime_initialize (void);
+void goacc_save_and_set_bind (acc_device_t);
+void goacc_restore_bind (void);
+void goacc_lazy_initialize (void);
+void goacc_host_init (void);
+
+#ifdef HAVE_ATTRIBUTE_VISIBILITY
+# pragma GCC visibility pop
+#endif
+
+#endif
--- libgomp/oacc-host.c.jj 2016-07-13 16:57:13.489423096 +0200
+++ libgomp/oacc-host.c 2016-07-13 16:57:13.489423096 +0200
@@ -0,0 +1,266 @@
+/* OpenACC Runtime Library: acc_device_host.
+
+ Copyright (C) 2013-2016 Free Software Foundation, Inc.
+
+ Contributed by Mentor Embedded.
+
+ This file is part of the GNU Offloading and Multi Processing Library
+ (libgomp).
+
+ Libgomp is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3, or (at your option)
+ any later version.
+
+ Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY
+ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ more details.
+
+ Under Section 7 of GPL version 3, you are granted additional
+ permissions described in the GCC Runtime Library Exception, version
+ 3.1, as published by the Free Software Foundation.
+
+ You should have received a copy of the GNU General Public License and
+ a copy of the GCC Runtime Library Exception along with this program;
+ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include "libgomp.h"
+#include "oacc-int.h"
+#include "gomp-constants.h"
+
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdint.h>
+
+static struct gomp_device_descr host_dispatch;
+
+static const char *
+host_get_name (void)
+{
+ return host_dispatch.name;
+}
+
+static unsigned int
+host_get_caps (void)
+{
+ return host_dispatch.capabilities;
+}
+
+static int
+host_get_type (void)
+{
+ return host_dispatch.type;
+}
+
+static int
+host_get_num_devices (void)
+{
+ return 1;
+}
+
+static bool
+host_init_device (int n __attribute__ ((unused)))
+{
+ return true;
+}
+
+static bool
+host_fini_device (int n __attribute__ ((unused)))
+{
+ return true;
+}
+
+static unsigned
+host_version (void)
+{
+ return GOMP_VERSION;
+}
+
+static int
+host_load_image (int n __attribute__ ((unused)),
+ unsigned v __attribute__ ((unused)),
+ const void *t __attribute__ ((unused)),
+ struct addr_pair **r __attribute__ ((unused)))
+{
+ return 0;
+}
+
+static bool
+host_unload_image (int n __attribute__ ((unused)),
+ unsigned v __attribute__ ((unused)),
+ const void *t __attribute__ ((unused)))
+{
+ return true;
+}
+
+static void *
+host_alloc (int n __attribute__ ((unused)), size_t s)
+{
+ return gomp_malloc (s);
+}
+
+static bool
+host_free (int n __attribute__ ((unused)), void *p)
+{
+ free (p);
+ return true;
+}
+
+static bool
+host_dev2host (int n __attribute__ ((unused)),
+ void *h __attribute__ ((unused)),
+ const void *d __attribute__ ((unused)),
+ size_t s __attribute__ ((unused)))
+{
+ return true;
+}
+
+static bool
+host_host2dev (int n __attribute__ ((unused)),
+ void *d __attribute__ ((unused)),
+ const void *h __attribute__ ((unused)),
+ size_t s __attribute__ ((unused)))
+{
+ return true;
+}
+
+static void
+host_run (int n __attribute__ ((unused)), void *fn_ptr, void *vars,
+ void **args __attribute__((unused)))
+{
+ void (*fn)(void *) = (void (*)(void *)) fn_ptr;
+
+ fn (vars);
+}
+
+static void
+host_openacc_exec (void (*fn) (void *),
+ size_t mapnum __attribute__ ((unused)),
+ void **hostaddrs,
+ void **devaddrs __attribute__ ((unused)),
+ int async __attribute__ ((unused)),
+ unsigned *dims __attribute ((unused)),
+ void *targ_mem_desc __attribute__ ((unused)))
+{
+ fn (hostaddrs);
+}
+
+static void
+host_openacc_register_async_cleanup (void *targ_mem_desc __attribute__ ((unused)),
+ int async __attribute__ ((unused)))
+{
+}
+
+static int
+host_openacc_async_test (int async __attribute__ ((unused)))
+{
+ return 1;
+}
+
+static int
+host_openacc_async_test_all (void)
+{
+ return 1;
+}
+
+static void
+host_openacc_async_wait (int async __attribute__ ((unused)))
+{
+}
+
+static void
+host_openacc_async_wait_async (int async1 __attribute__ ((unused)),
+ int async2 __attribute__ ((unused)))
+{
+}
+
+static void
+host_openacc_async_wait_all (void)
+{
+}
+
+static void
+host_openacc_async_wait_all_async (int async __attribute__ ((unused)))
+{
+}
+
+static void
+host_openacc_async_set_async (int async __attribute__ ((unused)))
+{
+}
+
+static void *
+host_openacc_create_thread_data (int ord __attribute__ ((unused)))
+{
+ return NULL;
+}
+
+static void
+host_openacc_destroy_thread_data (void *tls_data __attribute__ ((unused)))
+{
+}
+
+static struct gomp_device_descr host_dispatch =
+ {
+ .name = "host",
+ .capabilities = (GOMP_OFFLOAD_CAP_SHARED_MEM
+ | GOMP_OFFLOAD_CAP_NATIVE_EXEC
+ | GOMP_OFFLOAD_CAP_OPENACC_200),
+ .target_id = 0,
+ .type = OFFLOAD_TARGET_TYPE_HOST,
+
+ .get_name_func = host_get_name,
+ .get_caps_func = host_get_caps,
+ .get_type_func = host_get_type,
+ .get_num_devices_func = host_get_num_devices,
+ .init_device_func = host_init_device,
+ .fini_device_func = host_fini_device,
+ .version_func = host_version,
+ .load_image_func = host_load_image,
+ .unload_image_func = host_unload_image,
+ .alloc_func = host_alloc,
+ .free_func = host_free,
+ .dev2host_func = host_dev2host,
+ .host2dev_func = host_host2dev,
+ .run_func = host_run,
+
+ .mem_map = { NULL },
+ /* .lock initilized in goacc_host_init. */
+ .state = GOMP_DEVICE_UNINITIALIZED,
+
+ .openacc = {
+ .data_environ = NULL,
+
+ .exec_func = host_openacc_exec,
+
+ .register_async_cleanup_func = host_openacc_register_async_cleanup,
+
+ .async_test_func = host_openacc_async_test,
+ .async_test_all_func = host_openacc_async_test_all,
+ .async_wait_func = host_openacc_async_wait,
+ .async_wait_async_func = host_openacc_async_wait_async,
+ .async_wait_all_func = host_openacc_async_wait_all,
+ .async_wait_all_async_func = host_openacc_async_wait_all_async,
+ .async_set_async_func = host_openacc_async_set_async,
+
+ .create_thread_data_func = host_openacc_create_thread_data,
+ .destroy_thread_data_func = host_openacc_destroy_thread_data,
+
+ .cuda = {
+ .get_current_device_func = NULL,
+ .get_current_context_func = NULL,
+ .get_stream_func = NULL,
+ .set_stream_func = NULL,
+ }
+ }
+ };
+
+/* Initialize and register this device type. */
+void
+goacc_host_init (void)
+{
+ gomp_mutex_init (&host_dispatch.lock);
+ goacc_register (&host_dispatch);
+}
--- libgomp/oacc-parallel.c.jj 2016-07-13 16:57:04.399535807 +0200
+++ libgomp/oacc-parallel.c 2016-07-14 18:53:06.694996381 +0200
@@ -0,0 +1,241 @@
+/* Copyright (C) 2013-2016 Free Software Foundation, Inc.
+
+ Contributed by Mentor Embedded.
+
+ This file is part of the GNU Offloading and Multi Processing Library
+ (libgomp).
+
+ Libgomp is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3, or (at your option)
+ any later version.
+
+ Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY
+ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ more details.
+
+ Under Section 7 of GPL version 3, you are granted additional
+ permissions described in the GCC Runtime Library Exception, version
+ 3.1, as published by the Free Software Foundation.
+
+ You should have received a copy of the GNU General Public License and
+ a copy of the GCC Runtime Library Exception along with this program;
+ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+/* This file handles OpenACC constructs. */
+
+#include "openacc.h"
+#include "libgomp.h"
+#include "libgomp_g.h"
+#include "gomp-constants.h"
+#include "oacc-int.h"
+#ifdef HAVE_INTTYPES_H
+# include <inttypes.h> /* For PRIu64. */
+#endif
+#include <string.h>
+#include <stdarg.h>
+#include <assert.h>
+
+static void goacc_wait (int async, int num_waits, va_list *ap);
+
+
+/* Launch a possibly offloaded function on DEVICE. FN is the host fn
+ address. MAPNUM, HOSTADDRS, SIZES & KINDS describe the memory
+ blocks to be copied to/from the device. Varadic arguments are
+ keyed optional parameters terminated with a zero. */
+
+void
+GOACC_parallel_keyed (int device, void (*fn) (void *),
+ size_t mapnum, void **hostaddrs, size_t *sizes,
+ unsigned short *kinds, ...)
+{
+ bool host_fallback = device == GOMP_DEVICE_HOST_FALLBACK;
+ struct goacc_thread *thr;
+ struct gomp_device_descr *acc_dev;
+
+#ifdef HAVE_INTTYPES_H
+ gomp_debug (0, "%s: mapnum=%"PRIu64", hostaddrs=%p, size=%p, kinds=%p\n",
+ __FUNCTION__, (uint64_t) mapnum, hostaddrs, sizes, kinds);
+#else
+ gomp_debug (0, "%s: mapnum=%lu, hostaddrs=%p, sizes=%p, kinds=%p\n",
+ __FUNCTION__, (unsigned long) mapnum, hostaddrs, sizes, kinds);
+#endif
+ goacc_lazy_initialize ();
+
+ thr = goacc_thread ();
+ acc_dev = thr->dev;
+
+ /* Host fallback if "if" clause is false or if the current device is set to
+ the host. */
+ if (host_fallback)
+ {
+ goacc_save_and_set_bind (acc_device_host);
+ fn (hostaddrs);
+ goacc_restore_bind ();
+ return;
+ }
+ else if (acc_device_type (acc_dev->type) == acc_device_host)
+ {
+ fn (hostaddrs);
+ return;
+ }
+
+ /* acc_device_host is the only supported device type. */
+}
+
+/* Legacy entry point, only provide host execution. */
+
+void
+GOACC_parallel (int device, void (*fn) (void *),
+ size_t mapnum, void **hostaddrs, size_t *sizes,
+ unsigned short *kinds,
+ int num_gangs, int num_workers, int vector_length,
+ int async, int num_waits, ...)
+{
+ goacc_save_and_set_bind (acc_device_host);
+ fn (hostaddrs);
+ goacc_restore_bind ();
+}
+
+void
+GOACC_data_start (int device, size_t mapnum,
+ void **hostaddrs, size_t *sizes, unsigned short *kinds)
+{
+ goacc_lazy_initialize ();
+}
+
+void
+GOACC_data_end (void)
+{
+ gomp_debug (0, " %s: restore mappings\n", __FUNCTION__);
+ gomp_debug (0, " %s: mappings restored\n", __FUNCTION__);
+}
+
+void
+GOACC_enter_exit_data (int device, size_t mapnum,
+ void **hostaddrs, size_t *sizes, unsigned short *kinds,
+ int async, int num_waits, ...)
+{
+ goacc_lazy_initialize ();
+}
+
+static void
+goacc_wait (int async, int num_waits, va_list *ap)
+{
+ struct goacc_thread *thr = goacc_thread ();
+ struct gomp_device_descr *acc_dev = thr->dev;
+
+ while (num_waits--)
+ {
+ int qid = va_arg (*ap, int);
+
+ if (acc_async_test (qid))
+ continue;
+
+ if (async == acc_async_sync)
+ acc_wait (qid);
+ else if (qid == async)
+ ;/* If we're waiting on the same asynchronous queue as we're
+ launching on, the queue itself will order work as
+ required, so there's no need to wait explicitly. */
+ else
+ acc_dev->openacc.async_wait_async_func (qid, async);
+ }
+}
+
+void
+GOACC_update (int device, size_t mapnum,
+ void **hostaddrs, size_t *sizes, unsigned short *kinds,
+ int async, int num_waits, ...)
+{
+ goacc_lazy_initialize ();
+}
+
+void
+GOACC_wait (int async, int num_waits, ...)
+{
+ if (num_waits)
+ {
+ va_list ap;
+
+ va_start (ap, num_waits);
+ goacc_wait (async, num_waits, &ap);
+ va_end (ap);
+ }
+ else if (async == acc_async_sync)
+ acc_wait_all ();
+ else if (async == acc_async_noval)
+ goacc_thread ()->dev->openacc.async_wait_all_async_func (acc_async_noval);
+}
+
+int
+GOACC_get_num_threads (void)
+{
+ return 1;
+}
+
+int
+GOACC_get_thread_num (void)
+{
+ return 0;
+}
+
+void
+GOACC_declare (int device, size_t mapnum,
+ void **hostaddrs, size_t *sizes, unsigned short *kinds)
+{
+ int i;
+
+ for (i = 0; i < mapnum; i++)
+ {
+ unsigned char kind = kinds[i] & 0xff;
+
+ if (kind == GOMP_MAP_POINTER || kind == GOMP_MAP_TO_PSET)
+ continue;
+
+ switch (kind)
+ {
+ case GOMP_MAP_FORCE_ALLOC:
+ case GOMP_MAP_FORCE_FROM:
+ case GOMP_MAP_FORCE_TO:
+ case GOMP_MAP_POINTER:
+ case GOMP_MAP_DELETE:
+ GOACC_enter_exit_data (device, 1, &hostaddrs[i], &sizes[i],
+ &kinds[i], 0, 0);
+ break;
+
+ case GOMP_MAP_FORCE_DEVICEPTR:
+ break;
+
+ case GOMP_MAP_ALLOC:
+ if (!acc_is_present (hostaddrs[i], sizes[i]))
+ GOACC_enter_exit_data (device, 1, &hostaddrs[i], &sizes[i],
+ &kinds[i], 0, 0);
+ break;
+
+ case GOMP_MAP_TO:
+ GOACC_enter_exit_data (device, 1, &hostaddrs[i], &sizes[i],
+ &kinds[i], 0, 0);
+
+ break;
+
+ case GOMP_MAP_FROM:
+ kinds[i] = GOMP_MAP_FORCE_FROM;
+ GOACC_enter_exit_data (device, 1, &hostaddrs[i], &sizes[i],
+ &kinds[i], 0, 0);
+ break;
+
+ case GOMP_MAP_FORCE_PRESENT:
+ if (!acc_is_present (hostaddrs[i], sizes[i]))
+ gomp_fatal ("[%p,%ld] is not mapped", hostaddrs[i],
+ (unsigned long) sizes[i]);
+ break;
+
+ default:
+ assert (0);
+ break;
+ }
+ }
+}
--- libgomp/oacc-cuda.c.jj 2016-07-13 16:57:04.432535397 +0200
+++ libgomp/oacc-cuda.c 2016-07-13 16:57:04.432535397 +0200
@@ -0,0 +1,86 @@
+/* OpenACC Runtime Library: CUDA support glue.
+
+ Copyright (C) 2014-2016 Free Software Foundation, Inc.
+
+ Contributed by Mentor Embedded.
+
+ This file is part of the GNU Offloading and Multi Processing Library
+ (libgomp).
+
+ Libgomp is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3, or (at your option)
+ any later version.
+
+ Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY
+ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ more details.
+
+ Under Section 7 of GPL version 3, you are granted additional
+ permissions described in the GCC Runtime Library Exception, version
+ 3.1, as published by the Free Software Foundation.
+
+ You should have received a copy of the GNU General Public License and
+ a copy of the GCC Runtime Library Exception along with this program;
+ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include "openacc.h"
+#include "config.h"
+#include "libgomp.h"
+#include "oacc-int.h"
+
+void *
+acc_get_current_cuda_device (void)
+{
+ struct goacc_thread *thr = goacc_thread ();
+
+ if (thr && thr->dev && thr->dev->openacc.cuda.get_current_device_func)
+ return thr->dev->openacc.cuda.get_current_device_func ();
+
+ return NULL;
+}
+
+void *
+acc_get_current_cuda_context (void)
+{
+ struct goacc_thread *thr = goacc_thread ();
+
+ if (thr && thr->dev && thr->dev->openacc.cuda.get_current_context_func)
+ return thr->dev->openacc.cuda.get_current_context_func ();
+
+ return NULL;
+}
+
+void *
+acc_get_cuda_stream (int async)
+{
+ struct goacc_thread *thr = goacc_thread ();
+
+ if (async < 0)
+ return NULL;
+
+ if (thr && thr->dev && thr->dev->openacc.cuda.get_stream_func)
+ return thr->dev->openacc.cuda.get_stream_func (async);
+
+ return NULL;
+}
+
+int
+acc_set_cuda_stream (int async, void *stream)
+{
+ struct goacc_thread *thr;
+
+ if (async < 0 || stream == NULL)
+ return 0;
+
+ goacc_lazy_initialize ();
+
+ thr = goacc_thread ();
+
+ if (thr && thr->dev && thr->dev->openacc.cuda.set_stream_func)
+ return thr->dev->openacc.cuda.set_stream_func (async, stream);
+
+ return -1;
+}
--- libgomp/openacc_lib.h.jj 2016-07-13 16:57:13.486423134 +0200
+++ libgomp/openacc_lib.h 2016-07-13 16:57:13.486423134 +0200
@@ -0,0 +1,382 @@
+! OpenACC Runtime Library Definitions. -*- mode: fortran -*-
+
+! Copyright (C) 2014-2016 Free Software Foundation, Inc.
+
+! Contributed by Tobias Burnus <burnus@net-b.de>
+! and Mentor Embedded.
+
+! This file is part of the GNU Offloading and Multi Processing Library
+! (libgomp).
+
+! Libgomp is free software; you can redistribute it and/or modify it
+! under the terms of the GNU General Public License as published by
+! the Free Software Foundation; either version 3, or (at your option)
+! any later version.
+
+! Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY
+! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+! FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+! more details.
+
+! Under Section 7 of GPL version 3, you are granted additional
+! permissions described in the GCC Runtime Library Exception, version
+! 3.1, as published by the Free Software Foundation.
+
+! You should have received a copy of the GNU General Public License and
+! a copy of the GCC Runtime Library Exception along with this program;
+! see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+! <http://www.gnu.org/licenses/>.
+
+! NOTE: Due to the use of dimension (..), the code only works when compiled
+! with -std=f2008ts/gnu/legacy but not with other standard settings.
+! Alternatively, the user can use the module version, which permits
+! compilation with -std=f95.
+
+ integer, parameter :: acc_device_kind = 4
+
+! Keep in sync with include/gomp-constants.h.
+ integer (acc_device_kind), parameter :: acc_device_none = 0
+ integer (acc_device_kind), parameter :: acc_device_default = 1
+ integer (acc_device_kind), parameter :: acc_device_host = 2
+! integer (acc_device_kind), parameter :: acc_device_host_nonshm = 3
+! removed.
+ integer (acc_device_kind), parameter :: acc_device_not_host = 4
+ integer (acc_device_kind), parameter :: acc_device_nvidia = 5
+
+ integer, parameter :: acc_handle_kind = 4
+
+! Keep in sync with include/gomp-constants.h.
+ integer (acc_handle_kind), parameter :: acc_async_noval = -1
+ integer (acc_handle_kind), parameter :: acc_async_sync = -2
+
+ integer, parameter :: openacc_version = 201306
+
+ interface acc_get_num_devices
+ function acc_get_num_devices_h (d)
+ import acc_device_kind
+ integer acc_get_num_devices_h
+ integer (acc_device_kind) d
+ end function
+ end interface
+
+ interface acc_set_device_type
+ subroutine acc_set_device_type_h (d)
+ import acc_device_kind
+ integer (acc_device_kind) d
+ end subroutine
+ end interface
+
+ interface acc_get_device_type
+ function acc_get_device_type_h ()
+ import acc_device_kind
+ integer (acc_device_kind) acc_get_device_type_h
+ end function
+ end interface
+
+ interface acc_set_device_num
+ subroutine acc_set_device_num_h (n, d)
+ import acc_device_kind
+ integer n
+ integer (acc_device_kind) d
+ end subroutine
+ end interface
+
+ interface acc_get_device_num
+ function acc_get_device_num_h (d)
+ import acc_device_kind
+ integer acc_get_device_num_h
+ integer (acc_device_kind) d
+ end function
+ end interface
+
+ interface acc_async_test
+ function acc_async_test_h (a)
+ logical acc_async_test_h
+ integer a
+ end function
+ end interface
+
+ interface acc_async_test_all
+ function acc_async_test_all_h ()
+ logical acc_async_test_all_h
+ end function
+ end interface
+
+ interface acc_wait
+ subroutine acc_wait_h (a)
+ integer a
+ end subroutine
+ end interface
+
+ interface acc_wait_async
+ subroutine acc_wait_async_h (a1, a2)
+ integer a1, a2
+ end subroutine
+ end interface
+
+ interface acc_wait_all
+ subroutine acc_wait_all_h ()
+ end subroutine
+ end interface
+
+ interface acc_wait_all_async
+ subroutine acc_wait_all_async_h (a)
+ integer a
+ end subroutine
+ end interface
+
+ interface acc_init
+ subroutine acc_init_h (devicetype)
+ import acc_device_kind
+ integer (acc_device_kind) devicetype
+ end subroutine
+ end interface
+
+ interface acc_shutdown
+ subroutine acc_shutdown_h (devicetype)
+ import acc_device_kind
+ integer (acc_device_kind) devicetype
+ end subroutine
+ end interface
+
+ interface acc_on_device
+ function acc_on_device_h (devicetype)
+ import acc_device_kind
+ logical acc_on_device_h
+ integer (acc_device_kind) devicetype
+ end function
+ end interface
+
+ ! acc_malloc: Only available in C/C++
+ ! acc_free: Only available in C/C++
+
+ interface acc_copyin
+ subroutine acc_copyin_32_h (a, len)
+ use iso_c_binding, only: c_int32_t
+ !GCC$ ATTRIBUTES NO_ARG_CHECK :: a
+ type (*), dimension (*) :: a
+ integer (c_int32_t) len
+ end subroutine
+
+ subroutine acc_copyin_64_h (a, len)
+ use iso_c_binding, only: c_int64_t
+ !GCC$ ATTRIBUTES NO_ARG_CHECK :: a
+ type (*), dimension (*) :: a
+ integer (c_int64_t) len
+ end subroutine
+
+ subroutine acc_copyin_array_h (a)
+ type (*), dimension (..), contiguous :: a
+ end subroutine
+ end interface
+
+ interface acc_present_or_copyin
+ subroutine acc_present_or_copyin_32_h (a, len)
+ use iso_c_binding, only: c_int32_t
+ !GCC$ ATTRIBUTES NO_ARG_CHECK :: a
+ type (*), dimension (*) :: a
+ integer (c_int32_t) len
+ end subroutine
+
+ subroutine acc_present_or_copyin_64_h (a, len)
+ use iso_c_binding, only: c_int64_t
+ !GCC$ ATTRIBUTES NO_ARG_CHECK :: a
+ type (*), dimension (*) :: a
+ integer (c_int64_t) len
+ end subroutine
+
+ subroutine acc_present_or_copyin_array_h (a)
+ type (*), dimension (..), contiguous :: a
+ end subroutine
+ end interface
+
+ interface acc_pcopyin
+ subroutine acc_pcopyin_32_h (a, len)
+ use iso_c_binding, only: c_int32_t
+ !GCC$ ATTRIBUTES NO_ARG_CHECK :: a
+ type (*), dimension (*) :: a
+ integer (c_int32_t) len
+ end subroutine
+
+ subroutine acc_pcopyin_64_h (a, len)
+ use iso_c_binding, only: c_int64_t
+ !GCC$ ATTRIBUTES NO_ARG_CHECK :: a
+ type (*), dimension (*) :: a
+ integer (c_int64_t) len
+ end subroutine
+
+ subroutine acc_pcopyin_array_h (a)
+ type (*), dimension (..), contiguous :: a
+ end subroutine
+ end interface
+
+ interface acc_create
+ subroutine acc_create_32_h (a, len)
+ use iso_c_binding, only: c_int32_t
+ !GCC$ ATTRIBUTES NO_ARG_CHECK :: a
+ type (*), dimension (*) :: a
+ integer (c_int32_t) len
+ end subroutine
+
+ subroutine acc_create_64_h (a, len)
+ use iso_c_binding, only: c_int64_t
+ !GCC$ ATTRIBUTES NO_ARG_CHECK :: a
+ type (*), dimension (*) :: a
+ integer (c_int64_t) len
+ end subroutine
+
+ subroutine acc_create_array_h (a)
+ type (*), dimension (..), contiguous :: a
+ end subroutine
+ end interface
+
+ interface acc_present_or_create
+ subroutine acc_present_or_create_32_h (a, len)
+ use iso_c_binding, only: c_int32_t
+ !GCC$ ATTRIBUTES NO_ARG_CHECK :: a
+ type (*), dimension (*) :: a
+ integer (c_int32_t) len
+ end subroutine
+
+ subroutine acc_present_or_create_64_h (a, len)
+ use iso_c_binding, only: c_int64_t
+ !GCC$ ATTRIBUTES NO_ARG_CHECK :: a
+ type (*), dimension (*) :: a
+ integer (c_int64_t) len
+ end subroutine
+
+ subroutine acc_present_or_create_array_h (a)
+ type (*), dimension (..), contiguous :: a
+ end subroutine
+ end interface
+
+ interface acc_pcreate
+ subroutine acc_pcreate_32_h (a, len)
+ use iso_c_binding, only: c_int32_t
+ !GCC$ ATTRIBUTES NO_ARG_CHECK :: a
+ type (*), dimension (*) :: a
+ integer (c_int32_t) len
+ end subroutine
+
+ subroutine acc_pcreate_64_h (a, len)
+ use iso_c_binding, only: c_int64_t
+ !GCC$ ATTRIBUTES NO_ARG_CHECK :: a
+ type (*), dimension (*) :: a
+ integer (c_int64_t) len
+ end subroutine
+
+ subroutine acc_pcreate_array_h (a)
+ type (*), dimension (..), contiguous :: a
+ end subroutine
+ end interface
+
+ interface acc_copyout
+ subroutine acc_copyout_32_h (a, len)
+ use iso_c_binding, only: c_int32_t
+ !GCC$ ATTRIBUTES NO_ARG_CHECK :: a
+ type (*), dimension (*) :: a
+ integer (c_int32_t) len
+ end subroutine
+
+ subroutine acc_copyout_64_h (a, len)
+ use iso_c_binding, only: c_int64_t
+ !GCC$ ATTRIBUTES NO_ARG_CHECK :: a
+ type (*), dimension (*) :: a
+ integer (c_int64_t) len
+ end subroutine
+
+ subroutine acc_copyout_array_h (a)
+ type (*), dimension (..), contiguous :: a
+ end subroutine
+ end interface
+
+ interface acc_delete
+ subroutine acc_delete_32_h (a, len)
+ use iso_c_binding, only: c_int32_t
+ !GCC$ ATTRIBUTES NO_ARG_CHECK :: a
+ type (*), dimension (*) :: a
+ integer (c_int32_t) len
+ end subroutine
+
+ subroutine acc_delete_64_h (a, len)
+ use iso_c_binding, only: c_int64_t
+ !GCC$ ATTRIBUTES NO_ARG_CHECK :: a
+ type (*), dimension (*) :: a
+ integer (c_int64_t) len
+ end subroutine
+
+ subroutine acc_delete_array_h (a)
+ type (*), dimension (..), contiguous :: a
+ end subroutine
+ end interface
+
+ interface acc_update_device
+ subroutine acc_update_device_32_h (a, len)
+ use iso_c_binding, only: c_int32_t
+ !GCC$ ATTRIBUTES NO_ARG_CHECK :: a
+ type (*), dimension (*) :: a
+ integer (c_int32_t) len
+ end subroutine
+
+ subroutine acc_update_device_64_h (a, len)
+ use iso_c_binding, only: c_int64_t
+ !GCC$ ATTRIBUTES NO_ARG_CHECK :: a
+ type (*), dimension (*) :: a
+ integer (c_int64_t) len
+ end subroutine
+
+ subroutine acc_update_device_array_h (a)
+ type (*), dimension (..), contiguous :: a
+ end subroutine
+ end interface
+
+ interface acc_update_self
+ subroutine acc_update_self_32_h (a, len)
+ use iso_c_binding, only: c_int32_t
+ !GCC$ ATTRIBUTES NO_ARG_CHECK :: a
+ type (*), dimension (*) :: a
+ integer (c_int32_t) len
+ end subroutine
+
+ subroutine acc_update_self_64_h (a, len)
+ use iso_c_binding, only: c_int64_t
+ !GCC$ ATTRIBUTES NO_ARG_CHECK :: a
+ type (*), dimension (*) :: a
+ integer (c_int64_t) len
+ end subroutine
+
+ subroutine acc_update_self_array_h (a)
+ type (*), dimension (..), contiguous :: a
+ end subroutine
+ end interface
+
+ ! acc_map_data: Only available in C/C++
+ ! acc_unmap_data: Only available in C/C++
+ ! acc_deviceptr: Only available in C/C++
+ ! acc_ostptr: Only available in C/C++
+
+ interface acc_is_present
+ function acc_is_present_32_h (a, len)
+ use iso_c_binding, only: c_int32_t
+ logical acc_is_present_32_h
+ !GCC$ ATTRIBUTES NO_ARG_CHECK :: a
+ type (*), dimension (*) :: a
+ integer (c_int32_t) len
+ end function
+
+ function acc_is_present_64_h (a, len)
+ use iso_c_binding, only: c_int64_t
+ logical acc_is_present_64_h
+ !GCC$ ATTRIBUTES NO_ARG_CHECK :: a
+ type (*), dimension (*) :: a
+ integer (c_int64_t) len
+ end function
+
+ function acc_is_present_array_h (a)
+ logical acc_is_present_array_h
+ type (*), dimension (..), contiguous :: a
+ end function
+ end interface
+
+ ! acc_memcpy_to_device: Only available in C/C++
+ ! acc_memcpy_from_device: Only available in C/C++
--- libgomp/gomp-constants.h.jj 2016-07-14 16:02:47.212545826 +0200
+++ libgomp/gomp-constants.h 2016-05-26 21:04:40.000000000 +0200
@@ -0,0 +1,259 @@
+/* Communication between GCC and libgomp.
+
+ Copyright (C) 2014-2015 Free Software Foundation, Inc.
+
+ Contributed by Mentor Embedded.
+
+ This file is part of the GNU Offloading and Multi Processing Library
+ (libgomp).
+
+ Libgomp is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3, or (at your option)
+ any later version.
+
+ Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY
+ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ more details.
+
+ Under Section 7 of GPL version 3, you are granted additional
+ permissions described in the GCC Runtime Library Exception, version
+ 3.1, as published by the Free Software Foundation.
+
+ You should have received a copy of the GNU General Public License and
+ a copy of the GCC Runtime Library Exception along with this program;
+ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef GOMP_CONSTANTS_H
+#define GOMP_CONSTANTS_H 1
+
+/* Memory mapping types. */
+
+/* One byte. */
+#define GOMP_MAP_LAST (1 << 8)
+
+#define GOMP_MAP_FLAG_TO (1 << 0)
+#define GOMP_MAP_FLAG_FROM (1 << 1)
+/* Special map kinds, enumerated starting here. */
+#define GOMP_MAP_FLAG_SPECIAL_0 (1 << 2)
+#define GOMP_MAP_FLAG_SPECIAL_1 (1 << 3)
+#define GOMP_MAP_FLAG_SPECIAL_2 (1 << 4)
+#define GOMP_MAP_FLAG_SPECIAL (GOMP_MAP_FLAG_SPECIAL_1 \
+ | GOMP_MAP_FLAG_SPECIAL_0)
+/* Flag to force a specific behavior (or else, trigger a run-time error). */
+#define GOMP_MAP_FLAG_FORCE (1 << 7)
+
+enum gomp_map_kind
+ {
+ /* If not already present, allocate. */
+ GOMP_MAP_ALLOC = 0,
+ /* ..., and copy to device. */
+ GOMP_MAP_TO = (GOMP_MAP_ALLOC | GOMP_MAP_FLAG_TO),
+ /* ..., and copy from device. */
+ GOMP_MAP_FROM = (GOMP_MAP_ALLOC | GOMP_MAP_FLAG_FROM),
+ /* ..., and copy to and from device. */
+ GOMP_MAP_TOFROM = (GOMP_MAP_TO | GOMP_MAP_FROM),
+ /* The following kind is an internal only map kind, used for pointer based
+ array sections. OMP_CLAUSE_SIZE for these is not the pointer size,
+ which is implicitly POINTER_SIZE_UNITS, but the bias. */
+ GOMP_MAP_POINTER = (GOMP_MAP_FLAG_SPECIAL_0 | 0),
+ /* Also internal, behaves like GOMP_MAP_TO, but additionally any
+ GOMP_MAP_POINTER records consecutive after it which have addresses
+ falling into that range will not be ignored if GOMP_MAP_TO_PSET wasn't
+ mapped already. */
+ GOMP_MAP_TO_PSET = (GOMP_MAP_FLAG_SPECIAL_0 | 1),
+ /* Must already be present. */
+ GOMP_MAP_FORCE_PRESENT = (GOMP_MAP_FLAG_SPECIAL_0 | 2),
+ /* Deallocate a mapping, without copying from device. */
+ GOMP_MAP_DELETE = (GOMP_MAP_FLAG_SPECIAL_0 | 3),
+ /* Is a device pointer. OMP_CLAUSE_SIZE for these is unused; is implicitly
+ POINTER_SIZE_UNITS. */
+ GOMP_MAP_FORCE_DEVICEPTR = (GOMP_MAP_FLAG_SPECIAL_1 | 0),
+ /* Do not map, copy bits for firstprivate instead. */
+ /* OpenACC device_resident. */
+ GOMP_MAP_DEVICE_RESIDENT = (GOMP_MAP_FLAG_SPECIAL_1 | 1),
+ /* OpenACC link. */
+ GOMP_MAP_LINK = (GOMP_MAP_FLAG_SPECIAL_1 | 2),
+ /* Allocate. */
+ GOMP_MAP_FIRSTPRIVATE = (GOMP_MAP_FLAG_SPECIAL | 0),
+ /* Similarly, but store the value in the pointer rather than
+ pointed by the pointer. */
+ GOMP_MAP_FIRSTPRIVATE_INT = (GOMP_MAP_FLAG_SPECIAL | 1),
+ /* Pointer translate host address into device address and copy that
+ back to host. */
+ GOMP_MAP_USE_DEVICE_PTR = (GOMP_MAP_FLAG_SPECIAL | 2),
+ /* Allocate a zero length array section. Prefer next non-zero length
+ mapping over previous non-zero length mapping over zero length mapping
+ at the address. If not already mapped, do nothing (and pointer translate
+ to NULL). */
+ GOMP_MAP_ZERO_LEN_ARRAY_SECTION = (GOMP_MAP_FLAG_SPECIAL | 3),
+ /* Allocate. */
+ GOMP_MAP_FORCE_ALLOC = (GOMP_MAP_FLAG_FORCE | GOMP_MAP_ALLOC),
+ /* ..., and copy to device. */
+ GOMP_MAP_FORCE_TO = (GOMP_MAP_FLAG_FORCE | GOMP_MAP_TO),
+ /* ..., and copy from device. */
+ GOMP_MAP_FORCE_FROM = (GOMP_MAP_FLAG_FORCE | GOMP_MAP_FROM),
+ /* ..., and copy to and from device. */
+ GOMP_MAP_FORCE_TOFROM = (GOMP_MAP_FLAG_FORCE | GOMP_MAP_TOFROM),
+ /* If not already present, allocate. And unconditionally copy to
+ device. */
+ GOMP_MAP_ALWAYS_TO = (GOMP_MAP_FLAG_SPECIAL_2 | GOMP_MAP_TO),
+ /* If not already present, allocate. And unconditionally copy from
+ device. */
+ GOMP_MAP_ALWAYS_FROM = (GOMP_MAP_FLAG_SPECIAL_2
+ | GOMP_MAP_FROM),
+ /* If not already present, allocate. And unconditionally copy to and from
+ device. */
+ GOMP_MAP_ALWAYS_TOFROM = (GOMP_MAP_FLAG_SPECIAL_2
+ | GOMP_MAP_TOFROM),
+ /* Map a sparse struct; the address is the base of the structure, alignment
+ it's required alignment, and size is the number of adjacent entries
+ that belong to the struct. The adjacent entries should be sorted by
+ increasing address, so it is easy to determine lowest needed address
+ (address of the first adjacent entry) and highest needed address
+ (address of the last adjacent entry plus its size). */
+ GOMP_MAP_STRUCT = (GOMP_MAP_FLAG_SPECIAL_2
+ | GOMP_MAP_FLAG_SPECIAL | 0),
+ /* On a location of a pointer/reference that is assumed to be already mapped
+ earlier, store the translated address of the preceeding mapping.
+ No refcount is bumped by this, and the store is done unconditionally. */
+ GOMP_MAP_ALWAYS_POINTER = (GOMP_MAP_FLAG_SPECIAL_2
+ | GOMP_MAP_FLAG_SPECIAL | 1),
+ /* Forced deallocation of zero length array section. */
+ GOMP_MAP_DELETE_ZERO_LEN_ARRAY_SECTION
+ = (GOMP_MAP_FLAG_SPECIAL_2
+ | GOMP_MAP_FLAG_SPECIAL | 3),
+ /* Decrement usage count and deallocate if zero. */
+ GOMP_MAP_RELEASE = (GOMP_MAP_FLAG_SPECIAL_2
+ | GOMP_MAP_DELETE),
+
+ /* Internal to GCC, not used in libgomp. */
+ /* Do not map, but pointer assign a pointer instead. */
+ GOMP_MAP_FIRSTPRIVATE_POINTER = (GOMP_MAP_LAST | 1),
+ /* Do not map, but pointer assign a reference instead. */
+ GOMP_MAP_FIRSTPRIVATE_REFERENCE = (GOMP_MAP_LAST | 2)
+ };
+
+#define GOMP_MAP_COPY_TO_P(X) \
+ (!((X) & GOMP_MAP_FLAG_SPECIAL) \
+ && ((X) & GOMP_MAP_FLAG_TO))
+
+#define GOMP_MAP_COPY_FROM_P(X) \
+ (!((X) & GOMP_MAP_FLAG_SPECIAL) \
+ && ((X) & GOMP_MAP_FLAG_FROM))
+
+#define GOMP_MAP_POINTER_P(X) \
+ ((X) == GOMP_MAP_POINTER)
+
+#define GOMP_MAP_ALWAYS_TO_P(X) \
+ (((X) == GOMP_MAP_ALWAYS_TO) || ((X) == GOMP_MAP_ALWAYS_TOFROM))
+
+#define GOMP_MAP_ALWAYS_FROM_P(X) \
+ (((X) == GOMP_MAP_ALWAYS_FROM) || ((X) == GOMP_MAP_ALWAYS_TOFROM))
+
+#define GOMP_MAP_ALWAYS_P(X) \
+ (GOMP_MAP_ALWAYS_TO_P (X) || ((X) == GOMP_MAP_ALWAYS_FROM))
+
+
+/* Asynchronous behavior. Keep in sync with
+ libgomp/{openacc.h,openacc.f90,openacc_lib.h}:acc_async_t. */
+
+#define GOMP_ASYNC_NOVAL -1
+#define GOMP_ASYNC_SYNC -2
+
+
+/* Device codes. Keep in sync with
+ libgomp/{openacc.h,openacc.f90,openacc_lib.h}:acc_device_t as well as
+ libgomp/libgomp-plugin.h. */
+#define GOMP_DEVICE_NONE 0
+#define GOMP_DEVICE_DEFAULT 1
+#define GOMP_DEVICE_HOST 2
+/* #define GOMP_DEVICE_HOST_NONSHM 3 removed. */
+#define GOMP_DEVICE_NOT_HOST 4
+#define GOMP_DEVICE_NVIDIA_PTX 5
+#define GOMP_DEVICE_INTEL_MIC 6
+#define GOMP_DEVICE_HSA 7
+
+#define GOMP_DEVICE_ICV -1
+#define GOMP_DEVICE_HOST_FALLBACK -2
+
+/* GOMP_task/GOMP_taskloop* flags argument. */
+#define GOMP_TASK_FLAG_UNTIED (1 << 0)
+#define GOMP_TASK_FLAG_FINAL (1 << 1)
+#define GOMP_TASK_FLAG_MERGEABLE (1 << 2)
+#define GOMP_TASK_FLAG_DEPEND (1 << 3)
+#define GOMP_TASK_FLAG_PRIORITY (1 << 4)
+#define GOMP_TASK_FLAG_UP (1 << 8)
+#define GOMP_TASK_FLAG_GRAINSIZE (1 << 9)
+#define GOMP_TASK_FLAG_IF (1 << 10)
+#define GOMP_TASK_FLAG_NOGROUP (1 << 11)
+
+/* GOMP_target{_ext,update_ext,enter_exit_data} flags argument. */
+#define GOMP_TARGET_FLAG_NOWAIT (1 << 0)
+#define GOMP_TARGET_FLAG_EXIT_DATA (1 << 1)
+/* Internal to libgomp. */
+#define GOMP_TARGET_FLAG_UPDATE (1U << 31)
+
+/* Versions of libgomp and device-specific plugins. GOMP_VERSION
+ should be incremented whenever an ABI-incompatible change is introduced
+ to the plugin interface defined in libgomp/libgomp.h. */
+#define GOMP_VERSION 1
+#define GOMP_VERSION_NVIDIA_PTX 1
+#define GOMP_VERSION_INTEL_MIC 0
+#define GOMP_VERSION_HSA 0
+
+#define GOMP_VERSION_PACK(LIB, DEV) (((LIB) << 16) | (DEV))
+#define GOMP_VERSION_LIB(PACK) (((PACK) >> 16) & 0xffff)
+#define GOMP_VERSION_DEV(PACK) ((PACK) & 0xffff)
+
+#define GOMP_DIM_GANG 0
+#define GOMP_DIM_WORKER 1
+#define GOMP_DIM_VECTOR 2
+#define GOMP_DIM_MAX 3
+#define GOMP_DIM_MASK(X) (1u << (X))
+
+/* Varadic launch arguments. End of list is marked by a zero. */
+#define GOMP_LAUNCH_DIM 1 /* Launch dimensions, op = mask */
+#define GOMP_LAUNCH_ASYNC 2 /* Async, op = cst val if not MAX */
+#define GOMP_LAUNCH_WAIT 3 /* Waits, op = num waits. */
+#define GOMP_LAUNCH_CODE_SHIFT 28
+#define GOMP_LAUNCH_DEVICE_SHIFT 16
+#define GOMP_LAUNCH_OP_SHIFT 0
+#define GOMP_LAUNCH_PACK(CODE,DEVICE,OP) \
+ (((CODE) << GOMP_LAUNCH_CODE_SHIFT) \
+ | ((DEVICE) << GOMP_LAUNCH_DEVICE_SHIFT) \
+ | ((OP) << GOMP_LAUNCH_OP_SHIFT))
+#define GOMP_LAUNCH_CODE(X) (((X) >> GOMP_LAUNCH_CODE_SHIFT) & 0xf)
+#define GOMP_LAUNCH_DEVICE(X) (((X) >> GOMP_LAUNCH_DEVICE_SHIFT) & 0xfff)
+#define GOMP_LAUNCH_OP(X) (((X) >> GOMP_LAUNCH_OP_SHIFT) & 0xffff)
+#define GOMP_LAUNCH_OP_MAX 0xffff
+
+/* Bitmask to apply in order to find out the intended device of a target
+ argument. */
+#define GOMP_TARGET_ARG_DEVICE_MASK ((1 << 7) - 1)
+/* The target argument is significant for all devices. */
+#define GOMP_TARGET_ARG_DEVICE_ALL 0
+
+/* Flag set when the subsequent element in the device-specific argument
+ values. */
+#define GOMP_TARGET_ARG_SUBSEQUENT_PARAM (1 << 7)
+
+/* Bitmask to apply to a target argument to find out the value identifier. */
+#define GOMP_TARGET_ARG_ID_MASK (((1 << 8) - 1) << 8)
+/* Target argument index of NUM_TEAMS. */
+#define GOMP_TARGET_ARG_NUM_TEAMS (1 << 8)
+/* Target argument index of THREAD_LIMIT. */
+#define GOMP_TARGET_ARG_THREAD_LIMIT (2 << 8)
+
+/* If the value is directly embeded in target argument, it should be a 16-bit
+ at most and shifted by this many bits. */
+#define GOMP_TARGET_ARG_VALUE_SHIFT 16
+
+/* HSA specific data structures. */
+
+/* Identifiers of device-specific target arguments. */
+#define GOMP_TARGET_ARG_HSA_KERNEL_ATTRIBUTES (1 << 8)
+
+#endif
--- libgomp/oacc-mem.c.jj 2016-07-13 16:57:04.433535385 +0200
+++ libgomp/oacc-mem.c 2016-07-14 15:39:44.644631308 +0200
@@ -0,0 +1,204 @@
+/* OpenACC Runtime initialization routines
+
+ Copyright (C) 2013-2016 Free Software Foundation, Inc.
+
+ Contributed by Mentor Embedded.
+
+ This file is part of the GNU Offloading and Multi Processing Library
+ (libgomp).
+
+ Libgomp is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3, or (at your option)
+ any later version.
+
+ Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY
+ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ more details.
+
+ Under Section 7 of GPL version 3, you are granted additional
+ permissions described in the GCC Runtime Library Exception, version
+ 3.1, as published by the Free Software Foundation.
+
+ You should have received a copy of the GNU General Public License and
+ a copy of the GCC Runtime Library Exception along with this program;
+ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include "openacc.h"
+#include "config.h"
+#include "libgomp.h"
+#include "gomp-constants.h"
+#include "oacc-int.h"
+#include <stdint.h>
+#include <string.h>
+#include <assert.h>
+
+/* OpenACC is silent on how memory exhaustion is indicated. We return
+ NULL. */
+
+void *
+acc_malloc (size_t s)
+{
+ if (!s)
+ return NULL;
+
+ goacc_lazy_initialize ();
+ return malloc (s);
+}
+
+/* OpenACC 2.0a (3.2.16) doesn't specify what to do in the event
+ the device address is mapped. We choose to check if it mapped,
+ and if it is, to unmap it. */
+void
+acc_free (void *d)
+{
+ return free (d);
+}
+
+void
+acc_memcpy_to_device (void *d, void *h, size_t s)
+{
+ memmove (d, h, s);
+}
+
+void
+acc_memcpy_from_device (void *h, void *d, size_t s)
+{
+ memmove (h, d, s);
+}
+
+/* Return the device pointer that corresponds to host data H. Or NULL
+ if no mapping. */
+
+void *
+acc_deviceptr (void *h)
+{
+ goacc_lazy_initialize ();
+ return h;
+}
+
+/* Return the host pointer that corresponds to device data D. Or NULL
+ if no mapping. */
+
+void *
+acc_hostptr (void *d)
+{
+ goacc_lazy_initialize ();
+ return d;
+}
+
+/* Return 1 if host data [H,+S] is present on the device. */
+
+int
+acc_is_present (void *h, size_t s)
+{
+ if (!s || !h)
+ return 0;
+
+ goacc_lazy_initialize ();
+ return h != NULL;
+}
+
+/* Create a mapping for host [H,+S] -> device [D,+S] */
+
+void
+acc_map_data (void *h, void *d, size_t s)
+{
+ goacc_lazy_initialize ();
+
+ if (d != h)
+ gomp_fatal ("cannot map data on shared-memory system");
+}
+
+void
+acc_unmap_data (void *h)
+{
+}
+
+#define FLAG_PRESENT (1 << 0)
+#define FLAG_CREATE (1 << 1)
+#define FLAG_COPY (1 << 2)
+
+static void *
+present_create_copy (unsigned f, void *h, size_t s)
+{
+ if (!h || !s)
+ gomp_fatal ("[%p,+%d] is a bad range", (void *)h, (int)s);
+
+ goacc_lazy_initialize ();
+ return h;
+}
+
+void *
+acc_create (void *h, size_t s)
+{
+ return present_create_copy (FLAG_CREATE, h, s);
+}
+
+void *
+acc_copyin (void *h, size_t s)
+{
+ return present_create_copy (FLAG_CREATE | FLAG_COPY, h, s);
+}
+
+void *
+acc_present_or_create (void *h, size_t s)
+{
+ return present_create_copy (FLAG_PRESENT | FLAG_CREATE, h, s);
+}
+
+void *
+acc_present_or_copyin (void *h, size_t s)
+{
+ return present_create_copy (FLAG_PRESENT | FLAG_CREATE | FLAG_COPY, h, s);
+}
+
+#define FLAG_COPYOUT (1 << 0)
+
+static void
+delete_copyout (unsigned f, void *h, size_t s, const char *libfnname)
+{
+}
+
+void
+acc_delete (void *h , size_t s)
+{
+ delete_copyout (0, h, s, __FUNCTION__);
+}
+
+void
+acc_copyout (void *h, size_t s)
+{
+ delete_copyout (FLAG_COPYOUT, h, s, __FUNCTION__);
+}
+
+static void
+update_dev_host (int is_dev, void *h, size_t s)
+{
+ goacc_lazy_initialize ();
+}
+
+void
+acc_update_device (void *h, size_t s)
+{
+ update_dev_host (1, h, s);
+}
+
+void
+acc_update_self (void *h, size_t s)
+{
+ update_dev_host (0, h, s);
+}
+
+void
+gomp_acc_insert_pointer (size_t mapnum, void **hostaddrs, size_t *sizes,
+ void *kinds)
+{
+}
+
+void
+gomp_acc_remove_pointer (void *h, bool force_copyfrom, int async, int mapnum)
+{
+}
--- libgomp/oacc-plugin.h.jj 2016-07-13 16:57:13.487423121 +0200
+++ libgomp/oacc-plugin.h 2016-07-13 16:57:13.487423121 +0200
@@ -0,0 +1,33 @@
+/* Copyright (C) 2014-2016 Free Software Foundation, Inc.
+
+ Contributed by Mentor Embedded.
+
+ This file is part of the GNU Offloading and Multi Processing Library
+ (libgomp).
+
+ Libgomp is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3, or (at your option)
+ any later version.
+
+ Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY
+ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ more details.
+
+ Under Section 7 of GPL version 3, you are granted additional
+ permissions described in the GCC Runtime Library Exception, version
+ 3.1, as published by the Free Software Foundation.
+
+ You should have received a copy of the GNU General Public License and
+ a copy of the GCC Runtime Library Exception along with this program;
+ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef OACC_PLUGIN_H
+#define OACC_PLUGIN_H 1
+
+extern void GOMP_PLUGIN_async_unmap_vars (void *, int);
+extern void *GOMP_PLUGIN_acc_thread (void);
+
+#endif
--- libgomp/taskloop.c.jj 2016-07-13 16:57:18.935355570 +0200
+++ libgomp/taskloop.c 2016-07-13 16:57:18.935355570 +0200
@@ -0,0 +1,340 @@
+/* Copyright (C) 2015-2016 Free Software Foundation, Inc.
+ Contributed by Jakub Jelinek <jakub@redhat.com>.
+
+ This file is part of the GNU Offloading and Multi Processing Library
+ (libgomp).
+
+ Libgomp is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3, or (at your option)
+ any later version.
+
+ Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY
+ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ more details.
+
+ Under Section 7 of GPL version 3, you are granted additional
+ permissions described in the GCC Runtime Library Exception, version
+ 3.1, as published by the Free Software Foundation.
+
+ You should have received a copy of the GNU General Public License and
+ a copy of the GCC Runtime Library Exception along with this program;
+ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+/* This file handles the taskloop construct. It is included twice, once
+ for the long and once for unsigned long long variant. */
+
+/* Called when encountering an explicit task directive. If IF_CLAUSE is
+ false, then we must not delay in executing the task. If UNTIED is true,
+ then the task may be executed by any member of the team. */
+
+void
+GOMP_taskloop (void (*fn) (void *), void *data, void (*cpyfn) (void *, void *),
+ long arg_size, long arg_align, unsigned flags,
+ unsigned long num_tasks, int priority,
+ TYPE start, TYPE end, TYPE step)
+{
+ struct gomp_thread *thr = gomp_thread ();
+ struct gomp_team *team = thr->ts.team;
+
+#ifdef HAVE_BROKEN_POSIX_SEMAPHORES
+ /* If pthread_mutex_* is used for omp_*lock*, then each task must be
+ tied to one thread all the time. This means UNTIED tasks must be
+ tied and if CPYFN is non-NULL IF(0) must be forced, as CPYFN
+ might be running on different thread than FN. */
+ if (cpyfn)
+ flags &= ~GOMP_TASK_FLAG_IF;
+ flags &= ~GOMP_TASK_FLAG_UNTIED;
+#endif
+
+ /* If parallel or taskgroup has been cancelled, don't start new tasks. */
+ if (team && gomp_team_barrier_cancelled (&team->barrier))
+ return;
+
+#ifdef TYPE_is_long
+ TYPE s = step;
+ if (step > 0)
+ {
+ if (start >= end)
+ return;
+ s--;
+ }
+ else
+ {
+ if (start <= end)
+ return;
+ s++;
+ }
+ UTYPE n = (end - start + s) / step;
+#else
+ UTYPE n;
+ if (flags & GOMP_TASK_FLAG_UP)
+ {
+ if (start >= end)
+ return;
+ n = (end - start + step - 1) / step;
+ }
+ else
+ {
+ if (start <= end)
+ return;
+ n = (start - end - step - 1) / -step;
+ }
+#endif
+
+ TYPE task_step = step;
+ unsigned long nfirst = n;
+ if (flags & GOMP_TASK_FLAG_GRAINSIZE)
+ {
+ unsigned long grainsize = num_tasks;
+#ifdef TYPE_is_long
+ num_tasks = n / grainsize;
+#else
+ UTYPE ndiv = n / grainsize;
+ num_tasks = ndiv;
+ if (num_tasks != ndiv)
+ num_tasks = ~0UL;
+#endif
+ if (num_tasks <= 1)
+ {
+ num_tasks = 1;
+ task_step = end - start;
+ }
+ else if (num_tasks >= grainsize
+#ifndef TYPE_is_long
+ && num_tasks != ~0UL
+#endif
+ )
+ {
+ UTYPE mul = num_tasks * grainsize;
+ task_step = (TYPE) grainsize * step;
+ if (mul != n)
+ {
+ task_step += step;
+ nfirst = n - mul - 1;
+ }
+ }
+ else
+ {
+ UTYPE div = n / num_tasks;
+ UTYPE mod = n % num_tasks;
+ task_step = (TYPE) div * step;
+ if (mod)
+ {
+ task_step += step;
+ nfirst = mod - 1;
+ }
+ }
+ }
+ else
+ {
+ if (num_tasks == 0)
+ num_tasks = team ? team->nthreads : 1;
+ if (num_tasks >= n)
+ num_tasks = n;
+ else
+ {
+ UTYPE div = n / num_tasks;
+ UTYPE mod = n % num_tasks;
+ task_step = (TYPE) div * step;
+ if (mod)
+ {
+ task_step += step;
+ nfirst = mod - 1;
+ }
+ }
+ }
+
+ if (flags & GOMP_TASK_FLAG_NOGROUP)
+ {
+ if (thr->task && thr->task->taskgroup && thr->task->taskgroup->cancelled)
+ return;
+ }
+ else
+ ialias_call (GOMP_taskgroup_start) ();
+
+ if (priority > gomp_max_task_priority_var)
+ priority = gomp_max_task_priority_var;
+
+ if ((flags & GOMP_TASK_FLAG_IF) == 0 || team == NULL
+ || (thr->task && thr->task->final_task)
+ || team->task_count + num_tasks > 64 * team->nthreads)
+ {
+ unsigned long i;
+ if (__builtin_expect (cpyfn != NULL, 0))
+ {
+ struct gomp_task task[num_tasks];
+ struct gomp_task *parent = thr->task;
+ arg_size = (arg_size + arg_align - 1) & ~(arg_align - 1);
+ char buf[num_tasks * arg_size + arg_align - 1];
+ char *arg = (char *) (((uintptr_t) buf + arg_align - 1)
+ & ~(uintptr_t) (arg_align - 1));
+ char *orig_arg = arg;
+ for (i = 0; i < num_tasks; i++)
+ {
+ gomp_init_task (&task[i], parent, gomp_icv (false));
+ task[i].priority = priority;
+ task[i].kind = GOMP_TASK_UNDEFERRED;
+ task[i].final_task = (thr->task && thr->task->final_task)
+ || (flags & GOMP_TASK_FLAG_FINAL);
+ if (thr->task)
+ {
+ task[i].in_tied_task = thr->task->in_tied_task;
+ task[i].taskgroup = thr->task->taskgroup;
+ }
+ thr->task = &task[i];
+ cpyfn (arg, data);
+ arg += arg_size;
+ }
+ arg = orig_arg;
+ for (i = 0; i < num_tasks; i++)
+ {
+ thr->task = &task[i];
+ ((TYPE *)arg)[0] = start;
+ start += task_step;
+ ((TYPE *)arg)[1] = start;
+ if (i == nfirst)
+ task_step -= step;
+ fn (arg);
+ arg += arg_size;
+ if (!priority_queue_empty_p (&task[i].children_queue,
+ MEMMODEL_RELAXED))
+ {
+ gomp_mutex_lock (&team->task_lock);
+ gomp_clear_parent (&task[i].children_queue);
+ gomp_mutex_unlock (&team->task_lock);
+ }
+ gomp_end_task ();
+ }
+ }
+ else
+ for (i = 0; i < num_tasks; i++)
+ {
+ struct gomp_task task;
+
+ gomp_init_task (&task, thr->task, gomp_icv (false));
+ task.priority = priority;
+ task.kind = GOMP_TASK_UNDEFERRED;
+ task.final_task = (thr->task && thr->task->final_task)
+ || (flags & GOMP_TASK_FLAG_FINAL);
+ if (thr->task)
+ {
+ task.in_tied_task = thr->task->in_tied_task;
+ task.taskgroup = thr->task->taskgroup;
+ }
+ thr->task = &task;
+ ((TYPE *)data)[0] = start;
+ start += task_step;
+ ((TYPE *)data)[1] = start;
+ if (i == nfirst)
+ task_step -= step;
+ fn (data);
+ if (!priority_queue_empty_p (&task.children_queue,
+ MEMMODEL_RELAXED))
+ {
+ gomp_mutex_lock (&team->task_lock);
+ gomp_clear_parent (&task.children_queue);
+ gomp_mutex_unlock (&team->task_lock);
+ }
+ gomp_end_task ();
+ }
+ }
+ else
+ {
+ struct gomp_task *tasks[num_tasks];
+ struct gomp_task *parent = thr->task;
+ struct gomp_taskgroup *taskgroup = parent->taskgroup;
+ char *arg;
+ int do_wake;
+ unsigned long i;
+
+ for (i = 0; i < num_tasks; i++)
+ {
+ struct gomp_task *task
+ = gomp_malloc (sizeof (*task) + arg_size + arg_align - 1);
+ tasks[i] = task;
+ arg = (char *) (((uintptr_t) (task + 1) + arg_align - 1)
+ & ~(uintptr_t) (arg_align - 1));
+ gomp_init_task (task, parent, gomp_icv (false));
+ task->priority = priority;
+ task->kind = GOMP_TASK_UNDEFERRED;
+ task->in_tied_task = parent->in_tied_task;
+ task->taskgroup = taskgroup;
+ thr->task = task;
+ if (cpyfn)
+ {
+ cpyfn (arg, data);
+ task->copy_ctors_done = true;
+ }
+ else
+ memcpy (arg, data, arg_size);
+ ((TYPE *)arg)[0] = start;
+ start += task_step;
+ ((TYPE *)arg)[1] = start;
+ if (i == nfirst)
+ task_step -= step;
+ thr->task = parent;
+ task->kind = GOMP_TASK_WAITING;
+ task->fn = fn;
+ task->fn_data = arg;
+ task->final_task = (flags & GOMP_TASK_FLAG_FINAL) >> 1;
+ }
+ gomp_mutex_lock (&team->task_lock);
+ /* If parallel or taskgroup has been cancelled, don't start new
+ tasks. */
+ if (__builtin_expect ((gomp_team_barrier_cancelled (&team->barrier)
+ || (taskgroup && taskgroup->cancelled))
+ && cpyfn == NULL, 0))
+ {
+ gomp_mutex_unlock (&team->task_lock);
+ for (i = 0; i < num_tasks; i++)
+ {
+ gomp_finish_task (tasks[i]);
+ free (tasks[i]);
+ }
+ if ((flags & GOMP_TASK_FLAG_NOGROUP) == 0)
+ ialias_call (GOMP_taskgroup_end) ();
+ return;
+ }
+ if (taskgroup)
+ taskgroup->num_children += num_tasks;
+ for (i = 0; i < num_tasks; i++)
+ {
+ struct gomp_task *task = tasks[i];
+ priority_queue_insert (PQ_CHILDREN, &parent->children_queue,
+ task, priority,
+ PRIORITY_INSERT_BEGIN,
+ /*last_parent_depends_on=*/false,
+ task->parent_depends_on);
+ if (taskgroup)
+ priority_queue_insert (PQ_TASKGROUP, &taskgroup->taskgroup_queue,
+ task, priority, PRIORITY_INSERT_BEGIN,
+ /*last_parent_depends_on=*/false,
+ task->parent_depends_on);
+ priority_queue_insert (PQ_TEAM, &team->task_queue, task, priority,
+ PRIORITY_INSERT_END,
+ /*last_parent_depends_on=*/false,
+ task->parent_depends_on);
+ ++team->task_count;
+ ++team->task_queued_count;
+ }
+ gomp_team_barrier_set_task_pending (&team->barrier);
+ if (team->task_running_count + !parent->in_tied_task
+ < team->nthreads)
+ {
+ do_wake = team->nthreads - team->task_running_count
+ - !parent->in_tied_task;
+ if ((unsigned long) do_wake > num_tasks)
+ do_wake = num_tasks;
+ }
+ else
+ do_wake = 0;
+ gomp_mutex_unlock (&team->task_lock);
+ if (do_wake)
+ gomp_team_barrier_wake (&team->barrier, do_wake);
+ }
+ if ((flags & GOMP_TASK_FLAG_NOGROUP) == 0)
+ ialias_call (GOMP_taskgroup_end) ();
+}
--- libgomp/priority_queue.h.jj 2016-07-13 16:57:04.438535323 +0200
+++ libgomp/priority_queue.h 2016-07-13 16:57:04.438535323 +0200
@@ -0,0 +1,485 @@
+/* Copyright (C) 2015-2016 Free Software Foundation, Inc.
+ Contributed by Aldy Hernandez <aldyh@redhat.com>.
+
+ This file is part of the GNU Offloading and Multi Processing Library
+ (libgomp).
+
+ Libgomp is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3, or (at your option)
+ any later version.
+
+ Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY
+ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ more details.
+
+ Under Section 7 of GPL version 3, you are granted additional
+ permissions described in the GCC Runtime Library Exception, version
+ 3.1, as published by the Free Software Foundation.
+
+ You should have received a copy of the GNU General Public License and
+ a copy of the GCC Runtime Library Exception along with this program;
+ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+/* Header file for a priority queue of GOMP tasks. */
+
+/* ?? Perhaps all the priority_tree_* functions are complex and rare
+ enough to go out-of-line and be moved to priority_queue.c. ?? */
+
+#ifndef _PRIORITY_QUEUE_H_
+#define _PRIORITY_QUEUE_H_
+
+/* One task. */
+
+struct priority_node
+{
+ /* Next and previous chains in a circular doubly linked list for
+ tasks within this task's priority. */
+ struct priority_node *next, *prev;
+};
+
+/* All tasks within the same priority. */
+
+struct priority_list
+{
+ /* Priority of the tasks in this set. */
+ int priority;
+
+ /* Tasks. */
+ struct priority_node *tasks;
+
+ /* This points to the last of the higher priority WAITING tasks.
+ Remember that for the children queue, we have:
+
+ parent_depends_on WAITING tasks.
+ !parent_depends_on WAITING tasks.
+ TIED tasks.
+
+ This is a pointer to the last of the parent_depends_on WAITING
+ tasks which are essentially, higher priority items within their
+ priority. */
+ struct priority_node *last_parent_depends_on;
+};
+
+/* Another splay tree instantiation, for priority_list's. */
+typedef struct prio_splay_tree_node_s *prio_splay_tree_node;
+typedef struct prio_splay_tree_s *prio_splay_tree;
+typedef struct prio_splay_tree_key_s *prio_splay_tree_key;
+struct prio_splay_tree_key_s {
+ /* This structure must only containing a priority_list, as we cast
+ prio_splay_tree_key to priority_list throughout. */
+ struct priority_list l;
+};
+#define splay_tree_prefix prio
+#include "splay-tree.h"
+
+/* The entry point into a priority queue of tasks.
+
+ There are two alternate implementations with which to store tasks:
+ as a balanced tree of sorts, or as a simple list of tasks. If
+ there are only priority-0 items (ROOT is NULL), we use the simple
+ list, otherwise (ROOT is non-NULL) we use the tree. */
+
+struct priority_queue
+{
+ /* If t.root != NULL, this is a splay tree of priority_lists to hold
+ all tasks. This is only used if multiple priorities are in play,
+ otherwise we use the priority_list `l' below to hold all
+ (priority-0) tasks. */
+ struct prio_splay_tree_s t;
+
+ /* If T above is NULL, only priority-0 items exist, so keep them
+ in a simple list. */
+ struct priority_list l;
+};
+
+enum priority_insert_type {
+ /* Insert at the beginning of a priority list. */
+ PRIORITY_INSERT_BEGIN,
+ /* Insert at the end of a priority list. */
+ PRIORITY_INSERT_END
+};
+
+/* Used to determine in which queue a given priority node belongs in.
+ See pnode field of gomp_task. */
+
+enum priority_queue_type
+{
+ PQ_TEAM, /* Node belongs in gomp_team's task_queue. */
+ PQ_CHILDREN, /* Node belongs in parent's children_queue. */
+ PQ_TASKGROUP, /* Node belongs in taskgroup->taskgroup_queue. */
+ PQ_IGNORED = 999
+};
+
+/* Priority queue implementation prototypes. */
+
+extern bool priority_queue_task_in_queue_p (enum priority_queue_type,
+ struct priority_queue *,
+ struct gomp_task *);
+extern void priority_queue_dump (enum priority_queue_type,
+ struct priority_queue *);
+extern void priority_queue_verify (enum priority_queue_type,
+ struct priority_queue *, bool);
+extern void priority_tree_remove (enum priority_queue_type,
+ struct priority_queue *,
+ struct priority_node *);
+extern struct gomp_task *priority_tree_next_task (enum priority_queue_type,
+ struct priority_queue *,
+ enum priority_queue_type,
+ struct priority_queue *,
+ bool *);
+
+/* Return TRUE if there is more than one priority in HEAD. This is
+ used throughout to to choose between the fast path (priority 0 only
+ items) and a world with multiple priorities. */
+
+static inline bool
+priority_queue_multi_p (struct priority_queue *head)
+{
+ return __builtin_expect (head->t.root != NULL, 0);
+}
+
+/* Initialize a priority queue. */
+
+static inline void
+priority_queue_init (struct priority_queue *head)
+{
+ head->t.root = NULL;
+ /* To save a few microseconds, we don't initialize head->l.priority
+ to 0 here. It is implied that priority will be 0 if head->t.root
+ == NULL.
+
+ priority_tree_insert() will fix this when we encounter multiple
+ priorities. */
+ head->l.tasks = NULL;
+ head->l.last_parent_depends_on = NULL;
+}
+
+static inline void
+priority_queue_free (struct priority_queue *head)
+{
+ /* There's nothing to do, as tasks were freed as they were removed
+ in priority_queue_remove. */
+}
+
+/* Forward declarations. */
+static inline size_t priority_queue_offset (enum priority_queue_type);
+static inline struct gomp_task *priority_node_to_task
+ (enum priority_queue_type,
+ struct priority_node *);
+static inline struct priority_node *task_to_priority_node
+ (enum priority_queue_type,
+ struct gomp_task *);
+
+/* Return TRUE if priority queue HEAD is empty.
+
+ MODEL IS MEMMODEL_ACQUIRE if we should use an acquire atomic to
+ read from the root of the queue, otherwise MEMMODEL_RELAXED if we
+ should use a plain load. */
+
+static inline _Bool
+priority_queue_empty_p (struct priority_queue *head, enum memmodel model)
+{
+ /* Note: The acquire barriers on the loads here synchronize with
+ the write of a NULL in gomp_task_run_post_remove_parent. It is
+ not necessary that we synchronize with other non-NULL writes at
+ this point, but we must ensure that all writes to memory by a
+ child thread task work function are seen before we exit from
+ GOMP_taskwait. */
+ if (priority_queue_multi_p (head))
+ {
+ if (model == MEMMODEL_ACQUIRE)
+ return __atomic_load_n (&head->t.root, MEMMODEL_ACQUIRE) == NULL;
+ return head->t.root == NULL;
+ }
+ if (model == MEMMODEL_ACQUIRE)
+ return __atomic_load_n (&head->l.tasks, MEMMODEL_ACQUIRE) == NULL;
+ return head->l.tasks == NULL;
+}
+
+/* Look for a given PRIORITY in HEAD. Return it if found, otherwise
+ return NULL. This only applies to the tree variant in HEAD. There
+ is no point in searching for priorities in HEAD->L. */
+
+static inline struct priority_list *
+priority_queue_lookup_priority (struct priority_queue *head, int priority)
+{
+ if (head->t.root == NULL)
+ return NULL;
+ struct prio_splay_tree_key_s k;
+ k.l.priority = priority;
+ return (struct priority_list *)
+ prio_splay_tree_lookup (&head->t, &k);
+}
+
+/* Insert task in DATA, with PRIORITY, in the priority list in LIST.
+ LIST contains items of type TYPE.
+
+ If POS is PRIORITY_INSERT_BEGIN, the new task is inserted at the
+ top of its respective priority. If POS is PRIORITY_INSERT_END, the
+ task is inserted at the end of its priority.
+
+ If ADJUST_PARENT_DEPENDS_ON is TRUE, LIST is a children queue, and
+ we must keep track of higher and lower priority WAITING tasks by
+ keeping the queue's last_parent_depends_on field accurate. This
+ only applies to the children queue, and the caller must ensure LIST
+ is a children queue in this case.
+
+ If ADJUST_PARENT_DEPENDS_ON is TRUE, TASK_IS_PARENT_DEPENDS_ON is
+ set to the task's parent_depends_on field. If
+ ADJUST_PARENT_DEPENDS_ON is FALSE, this field is irrelevant.
+
+ Return the new priority_node. */
+
+static inline void
+priority_list_insert (enum priority_queue_type type,
+ struct priority_list *list,
+ struct gomp_task *task,
+ int priority,
+ enum priority_insert_type pos,
+ bool adjust_parent_depends_on,
+ bool task_is_parent_depends_on)
+{
+ struct priority_node *node = task_to_priority_node (type, task);
+ if (list->tasks)
+ {
+ /* If we are keeping track of higher/lower priority items,
+ but this is a lower priority WAITING task
+ (parent_depends_on != NULL), put it after all ready to
+ run tasks. See the comment in
+ priority_queue_upgrade_task for a visual on how tasks
+ should be organized. */
+ if (adjust_parent_depends_on
+ && pos == PRIORITY_INSERT_BEGIN
+ && list->last_parent_depends_on
+ && !task_is_parent_depends_on)
+ {
+ struct priority_node *last_parent_depends_on
+ = list->last_parent_depends_on;
+ node->next = last_parent_depends_on->next;
+ node->prev = last_parent_depends_on;
+ }
+ /* Otherwise, put it at the top/bottom of the queue. */
+ else
+ {
+ node->next = list->tasks;
+ node->prev = list->tasks->prev;
+ if (pos == PRIORITY_INSERT_BEGIN)
+ list->tasks = node;
+ }
+ node->next->prev = node;
+ node->prev->next = node;
+ }
+ else
+ {
+ node->next = node;
+ node->prev = node;
+ list->tasks = node;
+ }
+ if (adjust_parent_depends_on
+ && list->last_parent_depends_on == NULL
+ && task_is_parent_depends_on)
+ list->last_parent_depends_on = node;
+}
+
+/* Tree version of priority_list_insert. */
+
+static inline void
+priority_tree_insert (enum priority_queue_type type,
+ struct priority_queue *head,
+ struct gomp_task *task,
+ int priority,
+ enum priority_insert_type pos,
+ bool adjust_parent_depends_on,
+ bool task_is_parent_depends_on)
+{
+ if (__builtin_expect (head->t.root == NULL, 0))
+ {
+ /* The first time around, transfer any priority 0 items to the
+ tree. */
+ if (head->l.tasks != NULL)
+ {
+ prio_splay_tree_node k = gomp_malloc (sizeof (*k));
+ k->left = NULL;
+ k->right = NULL;
+ k->key.l.priority = 0;
+ k->key.l.tasks = head->l.tasks;
+ k->key.l.last_parent_depends_on = head->l.last_parent_depends_on;
+ prio_splay_tree_insert (&head->t, k);
+ head->l.tasks = NULL;
+ }
+ }
+ struct priority_list *list
+ = priority_queue_lookup_priority (head, priority);
+ if (!list)
+ {
+ prio_splay_tree_node k = gomp_malloc (sizeof (*k));
+ k->left = NULL;
+ k->right = NULL;
+ k->key.l.priority = priority;
+ k->key.l.tasks = NULL;
+ k->key.l.last_parent_depends_on = NULL;
+ prio_splay_tree_insert (&head->t, k);
+ list = &k->key.l;
+ }
+ priority_list_insert (type, list, task, priority, pos,
+ adjust_parent_depends_on,
+ task_is_parent_depends_on);
+}
+
+/* Generic version of priority_*_insert. */
+
+static inline void
+priority_queue_insert (enum priority_queue_type type,
+ struct priority_queue *head,
+ struct gomp_task *task,
+ int priority,
+ enum priority_insert_type pos,
+ bool adjust_parent_depends_on,
+ bool task_is_parent_depends_on)
+{
+#if _LIBGOMP_CHECKING_
+ if (priority_queue_task_in_queue_p (type, head, task))
+ gomp_fatal ("Attempt to insert existing task %p", task);
+#endif
+ if (priority_queue_multi_p (head) || __builtin_expect (priority > 0, 0))
+ priority_tree_insert (type, head, task, priority, pos,
+ adjust_parent_depends_on,
+ task_is_parent_depends_on);
+ else
+ priority_list_insert (type, &head->l, task, priority, pos,
+ adjust_parent_depends_on,
+ task_is_parent_depends_on);
+}
+
+/* If multiple priorities are in play, return the highest priority
+ task from within Q1 and Q2, while giving preference to tasks from
+ Q1. If the returned task is chosen from Q1, *Q1_CHOSEN_P is set to
+ TRUE, otherwise it is set to FALSE.
+
+ If multiple priorities are not in play (only 0 priorities are
+ available), the next task is chosen exclusively from Q1.
+
+ As a special case, Q2 can be NULL, in which case, we just choose
+ the highest priority WAITING task in Q1. This is an optimization
+ to speed up looking through only one queue.
+
+ We assume Q1 has at least one item. */
+
+static inline struct gomp_task *
+priority_queue_next_task (enum priority_queue_type t1,
+ struct priority_queue *q1,
+ enum priority_queue_type t2,
+ struct priority_queue *q2,
+ bool *q1_chosen_p)
+{
+#if _LIBGOMP_CHECKING_
+ if (priority_queue_empty_p (q1, MEMMODEL_RELAXED))
+ gomp_fatal ("priority_queue_next_task: Q1 is empty");
+#endif
+ if (priority_queue_multi_p (q1))
+ {
+ struct gomp_task *t
+ = priority_tree_next_task (t1, q1, t2, q2, q1_chosen_p);
+ /* If T is NULL, there are no WAITING tasks in Q1. In which
+ case, return any old (non-waiting) task which will cause the
+ caller to do the right thing when checking T->KIND ==
+ GOMP_TASK_WAITING. */
+ if (!t)
+ {
+#if _LIBGOMP_CHECKING_
+ if (*q1_chosen_p == false)
+ gomp_fatal ("priority_queue_next_task inconsistency");
+#endif
+ return priority_node_to_task (t1, q1->t.root->key.l.tasks);
+ }
+ return t;
+ }
+ else
+ {
+ *q1_chosen_p = true;
+ return priority_node_to_task (t1, q1->l.tasks);
+ }
+}
+
+/* Remove NODE from LIST.
+
+ If we are removing the one and only item in the list, and MODEL is
+ MEMMODEL_RELEASE, use an atomic release to clear the list.
+
+ If the list becomes empty after the remove, return TRUE. */
+
+static inline bool
+priority_list_remove (struct priority_list *list,
+ struct priority_node *node,
+ enum memmodel model)
+{
+ bool empty = false;
+ node->prev->next = node->next;
+ node->next->prev = node->prev;
+ if (list->tasks == node)
+ {
+ if (node->next != node)
+ list->tasks = node->next;
+ else
+ {
+ /* We access task->children in GOMP_taskwait outside of
+ the task lock mutex region, so need a release barrier
+ here to ensure memory written by child_task->fn above
+ is flushed before the NULL is written. */
+ if (model == MEMMODEL_RELEASE)
+ __atomic_store_n (&list->tasks, NULL, MEMMODEL_RELEASE);
+ else
+ list->tasks = NULL;
+ empty = true;
+ goto remove_out;
+ }
+ }
+remove_out:
+#if _LIBGOMP_CHECKING_
+ memset (node, 0xaf, sizeof (*node));
+#endif
+ return empty;
+}
+
+/* This is the generic version of priority_list_remove.
+
+ Remove NODE from priority queue HEAD. HEAD contains tasks of type TYPE.
+
+ If we are removing the one and only item in the priority queue and
+ MODEL is MEMMODEL_RELEASE, use an atomic release to clear the queue.
+
+ If the queue becomes empty after the remove, return TRUE. */
+
+static inline bool
+priority_queue_remove (enum priority_queue_type type,
+ struct priority_queue *head,
+ struct gomp_task *task,
+ enum memmodel model)
+{
+#if _LIBGOMP_CHECKING_
+ if (!priority_queue_task_in_queue_p (type, head, task))
+ gomp_fatal ("Attempt to remove missing task %p", task);
+#endif
+ if (priority_queue_multi_p (head))
+ {
+ priority_tree_remove (type, head, task_to_priority_node (type, task));
+ if (head->t.root == NULL)
+ {
+ if (model == MEMMODEL_RELEASE)
+ /* Errr, we store NULL twice, the alternative would be to
+ use an atomic release directly in the splay tree
+ routines. Worth it? */
+ __atomic_store_n (&head->t.root, NULL, MEMMODEL_RELEASE);
+ return true;
+ }
+ return false;
+ }
+ else
+ return priority_list_remove (&head->l,
+ task_to_priority_node (type, task), model);
+}
+
+#endif /* _PRIORITY_QUEUE_H_ */
--- libgomp/priority_queue.c.jj 2016-07-13 16:57:04.435535360 +0200
+++ libgomp/priority_queue.c 2016-07-13 16:57:04.435535360 +0200
@@ -0,0 +1,300 @@
+/* Copyright (C) 2015-2016 Free Software Foundation, Inc.
+ Contributed by Aldy Hernandez <aldyh@redhat.com>.
+
+ This file is part of the GNU Offloading and Multi Processing Library
+ (libgomp).
+
+ Libgomp is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3, or (at your option)
+ any later version.
+
+ Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY
+ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ more details.
+
+ Under Section 7 of GPL version 3, you are granted additional
+ permissions described in the GCC Runtime Library Exception, version
+ 3.1, as published by the Free Software Foundation.
+
+ You should have received a copy of the GNU General Public License and
+ a copy of the GCC Runtime Library Exception along with this program;
+ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+/* Priority queue implementation of GOMP tasks. */
+
+#include "libgomp.h"
+
+#if _LIBGOMP_CHECKING_
+#include <stdio.h>
+
+/* Sanity check to verify whether a TASK is in LIST. Return TRUE if
+ found, FALSE otherwise.
+
+ TYPE is the type of priority queue this task resides in. */
+
+static inline bool
+priority_queue_task_in_list_p (enum priority_queue_type type,
+ struct priority_list *list,
+ struct gomp_task *task)
+{
+ struct priority_node *p = list->tasks;
+ do
+ {
+ if (priority_node_to_task (type, p) == task)
+ return true;
+ p = p->next;
+ }
+ while (p != list->tasks);
+ return false;
+}
+
+/* Tree version of priority_queue_task_in_list_p. */
+
+static inline bool
+priority_queue_task_in_tree_p (enum priority_queue_type type,
+ struct priority_queue *head,
+ struct gomp_task *task)
+{
+ struct priority_list *list
+ = priority_queue_lookup_priority (head, task->priority);
+ if (!list)
+ return false;
+ return priority_queue_task_in_list_p (type, list, task);
+}
+
+/* Generic version of priority_queue_task_in_list_p that works for
+ trees or lists. */
+
+bool
+priority_queue_task_in_queue_p (enum priority_queue_type type,
+ struct priority_queue *head,
+ struct gomp_task *task)
+{
+ if (priority_queue_empty_p (head, MEMMODEL_RELAXED))
+ return false;
+ if (priority_queue_multi_p (head))
+ return priority_queue_task_in_tree_p (type, head, task);
+ else
+ return priority_queue_task_in_list_p (type, &head->l, task);
+}
+
+/* Sanity check LIST to make sure the tasks therein are in the right
+ order. LIST is a priority list of type TYPE.
+
+ The expected order is that GOMP_TASK_WAITING tasks come before
+ GOMP_TASK_TIED/GOMP_TASK_ASYNC_RUNNING ones.
+
+ If CHECK_DEPS is TRUE, we also check that parent_depends_on WAITING
+ tasks come before !parent_depends_on WAITING tasks. This is only
+ applicable to the children queue, and the caller is expected to
+ ensure that we are verifying the children queue. */
+
+static void
+priority_list_verify (enum priority_queue_type type,
+ struct priority_list *list, bool check_deps)
+{
+ bool seen_tied = false;
+ bool seen_plain_waiting = false;
+ struct priority_node *p = list->tasks;
+ while (1)
+ {
+ struct gomp_task *t = priority_node_to_task (type, p);
+ if (seen_tied && t->kind == GOMP_TASK_WAITING)
+ gomp_fatal ("priority_queue_verify: WAITING task after TIED");
+ if (t->kind >= GOMP_TASK_TIED)
+ seen_tied = true;
+ else if (check_deps && t->kind == GOMP_TASK_WAITING)
+ {
+ if (t->parent_depends_on)
+ {
+ if (seen_plain_waiting)
+ gomp_fatal ("priority_queue_verify: "
+ "parent_depends_on after !parent_depends_on");
+ }
+ else
+ seen_plain_waiting = true;
+ }
+ p = p->next;
+ if (p == list->tasks)
+ break;
+ }
+}
+
+/* Callback type for priority_tree_verify_callback. */
+struct cbtype
+{
+ enum priority_queue_type type;
+ bool check_deps;
+};
+
+/* Verify every task in NODE.
+
+ Callback for splay_tree_foreach. */
+
+static void
+priority_tree_verify_callback (prio_splay_tree_key key, void *data)
+{
+ struct cbtype *cb = (struct cbtype *) data;
+ priority_list_verify (cb->type, &key->l, cb->check_deps);
+}
+
+/* Generic version of priority_list_verify.
+
+ Sanity check HEAD to make sure the tasks therein are in the right
+ order. The priority_queue holds tasks of type TYPE.
+
+ If CHECK_DEPS is TRUE, we also check that parent_depends_on WAITING
+ tasks come before !parent_depends_on WAITING tasks. This is only
+ applicable to the children queue, and the caller is expected to
+ ensure that we are verifying the children queue. */
+
+void
+priority_queue_verify (enum priority_queue_type type,
+ struct priority_queue *head, bool check_deps)
+{
+ if (priority_queue_empty_p (head, MEMMODEL_RELAXED))
+ return;
+ if (priority_queue_multi_p (head))
+ {
+ struct cbtype cb = { type, check_deps };
+ prio_splay_tree_foreach (&head->t,
+ priority_tree_verify_callback, &cb);
+ }
+ else
+ priority_list_verify (type, &head->l, check_deps);
+}
+#endif /* _LIBGOMP_CHECKING_ */
+
+/* Remove NODE from priority queue HEAD, wherever it may be inside the
+ tree. HEAD contains tasks of type TYPE. */
+
+void
+priority_tree_remove (enum priority_queue_type type,
+ struct priority_queue *head,
+ struct priority_node *node)
+{
+ /* ?? The only reason this function is not inlined is because we
+ need to find the priority within gomp_task (which has not been
+ completely defined in the header file). If the lack of inlining
+ is a concern, we could pass the priority number as a
+ parameter, or we could move this to libgomp.h. */
+ int priority = priority_node_to_task (type, node)->priority;
+
+ /* ?? We could avoid this lookup by keeping a pointer to the key in
+ the priority_node. */
+ struct priority_list *list
+ = priority_queue_lookup_priority (head, priority);
+#if _LIBGOMP_CHECKING_
+ if (!list)
+ gomp_fatal ("Unable to find priority %d", priority);
+#endif
+ /* If NODE was the last in its priority, clean up the priority. */
+ if (priority_list_remove (list, node, MEMMODEL_RELAXED))
+ {
+ prio_splay_tree_remove (&head->t, (prio_splay_tree_key) list);
+ list->tasks = NULL;
+#if _LIBGOMP_CHECKING_
+ memset (list, 0xaf, sizeof (*list));
+#endif
+ free (list);
+ }
+}
+
+/* Return the highest priority WAITING task in a splay tree NODE. If
+ there are no WAITING tasks available, return NULL.
+
+ NODE is a priority list containing tasks of type TYPE.
+
+ The right most node in a tree contains the highest priority.
+ Recurse down to find such a node. If the task at that max node is
+ not WAITING, bubble back up and look at the remaining tasks
+ in-order. */
+
+static struct gomp_task *
+priority_tree_next_task_1 (enum priority_queue_type type,
+ prio_splay_tree_node node)
+{
+ again:
+ if (!node)
+ return NULL;
+ struct gomp_task *ret = priority_tree_next_task_1 (type, node->right);
+ if (ret)
+ return ret;
+ ret = priority_node_to_task (type, node->key.l.tasks);
+ if (ret->kind == GOMP_TASK_WAITING)
+ return ret;
+ node = node->left;
+ goto again;
+}
+
+/* Return the highest priority WAITING task from within Q1 and Q2,
+ while giving preference to tasks from Q1. Q1 is a queue containing
+ items of type TYPE1. Q2 is a queue containing items of type TYPE2.
+
+ Since we are mostly interested in Q1, if there are no WAITING tasks
+ in Q1, we don't bother checking Q2, and just return NULL.
+
+ As a special case, Q2 can be NULL, in which case, we just choose
+ the highest priority WAITING task in Q1. This is an optimization
+ to speed up looking through only one queue.
+
+ If the returned task is chosen from Q1, *Q1_CHOSEN_P is set to
+ TRUE, otherwise it is set to FALSE. */
+
+struct gomp_task *
+priority_tree_next_task (enum priority_queue_type type1,
+ struct priority_queue *q1,
+ enum priority_queue_type type2,
+ struct priority_queue *q2,
+ bool *q1_chosen_p)
+{
+ struct gomp_task *t1 = priority_tree_next_task_1 (type1, q1->t.root);
+ if (!t1
+ /* Special optimization when only searching through one queue. */
+ || !q2)
+ {
+ *q1_chosen_p = true;
+ return t1;
+ }
+ struct gomp_task *t2 = priority_tree_next_task_1 (type2, q2->t.root);
+ if (!t2 || t1->priority > t2->priority)
+ {
+ *q1_chosen_p = true;
+ return t1;
+ }
+ if (t2->priority > t1->priority)
+ {
+ *q1_chosen_p = false;
+ return t2;
+ }
+ /* If we get here, the priorities are the same, so we must look at
+ parent_depends_on to make our decision. */
+#if _LIBGOMP_CHECKING_
+ if (t1 != t2)
+ gomp_fatal ("priority_tree_next_task: t1 != t2");
+#endif
+ if (t2->parent_depends_on && !t1->parent_depends_on)
+ {
+ *q1_chosen_p = false;
+ return t2;
+ }
+ *q1_chosen_p = true;
+ return t1;
+}
+
+/* Priority splay trees comparison function. */
+static inline int
+prio_splay_compare (prio_splay_tree_key x, prio_splay_tree_key y)
+{
+ if (x->l.priority == y->l.priority)
+ return 0;
+ return x->l.priority < y->l.priority ? -1 : 1;
+}
+
+/* Define another splay tree instantiation, for priority_list's. */
+#define splay_tree_prefix prio
+#define splay_tree_c
+#include "splay-tree.h"
--- libgomp/openacc.f90.jj 2016-07-13 16:57:04.434535373 +0200
+++ libgomp/openacc.f90 2016-07-14 19:01:54.901230875 +0200
@@ -0,0 +1,911 @@
+! OpenACC Runtime Library Definitions.
+
+! Copyright (C) 2014-2016 Free Software Foundation, Inc.
+
+! Contributed by Tobias Burnus <burnus@net-b.de>
+! and Mentor Embedded.
+
+! This file is part of the GNU Offloading and Multi Processing Library
+! (libgomp).
+
+! Libgomp is free software; you can redistribute it and/or modify it
+! under the terms of the GNU General Public License as published by
+! the Free Software Foundation; either version 3, or (at your option)
+! any later version.
+
+! Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY
+! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+! FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+! more details.
+
+! Under Section 7 of GPL version 3, you are granted additional
+! permissions described in the GCC Runtime Library Exception, version
+! 3.1, as published by the Free Software Foundation.
+
+! You should have received a copy of the GNU General Public License and
+! a copy of the GCC Runtime Library Exception along with this program;
+! see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+! <http://www.gnu.org/licenses/>.
+
+module openacc_kinds
+ use iso_fortran_env, only: int32
+ implicit none
+
+ private :: int32
+ public :: acc_device_kind
+
+ integer, parameter :: acc_device_kind = int32
+
+ public :: acc_device_none, acc_device_default, acc_device_host
+ public :: acc_device_not_host, acc_device_nvidia
+
+ ! Keep in sync with include/gomp-constants.h.
+ integer (acc_device_kind), parameter :: acc_device_none = 0
+ integer (acc_device_kind), parameter :: acc_device_default = 1
+ integer (acc_device_kind), parameter :: acc_device_host = 2
+ ! integer (acc_device_kind), parameter :: acc_device_host_nonshm = 3 removed.
+ integer (acc_device_kind), parameter :: acc_device_not_host = 4
+ integer (acc_device_kind), parameter :: acc_device_nvidia = 5
+
+ public :: acc_handle_kind
+
+ integer, parameter :: acc_handle_kind = int32
+
+ public :: acc_async_noval, acc_async_sync
+
+ ! Keep in sync with include/gomp-constants.h.
+ integer (acc_handle_kind), parameter :: acc_async_noval = -1
+ integer (acc_handle_kind), parameter :: acc_async_sync = -2
+
+end module
+
+module openacc_internal
+ use openacc_kinds
+ implicit none
+
+ interface
+ function acc_get_num_devices_h (d)
+ import
+ integer acc_get_num_devices_h
+ integer (acc_device_kind) d
+ end function
+
+ subroutine acc_set_device_type_h (d)
+ import
+ integer (acc_device_kind) d
+ end subroutine
+
+ function acc_get_device_type_h ()
+ import
+ integer (acc_device_kind) acc_get_device_type_h
+ end function
+
+ subroutine acc_set_device_num_h (n, d)
+ import
+ integer n
+ integer (acc_device_kind) d
+ end subroutine
+
+ function acc_get_device_num_h (d)
+ import
+ integer acc_get_device_num_h
+ integer (acc_device_kind) d
+ end function
+
+ function acc_async_test_h (a)
+ logical acc_async_test_h
+ integer a
+ end function
+
+ function acc_async_test_all_h ()
+ logical acc_async_test_all_h
+ end function
+
+ subroutine acc_wait_h (a)
+ integer a
+ end subroutine
+
+ subroutine acc_wait_async_h (a1, a2)
+ integer a1, a2
+ end subroutine
+
+ subroutine acc_wait_all_h ()
+ end subroutine
+
+ subroutine acc_wait_all_async_h (a)
+ integer a
+ end subroutine
+
+ subroutine acc_init_h (d)
+ import
+ integer (acc_device_kind) d
+ end subroutine
+
+ subroutine acc_shutdown_h (d)
+ import
+ integer (acc_device_kind) d
+ end subroutine
+
+ function acc_on_device_h (d)
+ import
+ integer (acc_device_kind) d
+ logical acc_on_device_h
+ end function
+
+ subroutine acc_copyin_32_h (a, len)
+ use iso_c_binding, only: c_int32_t
+ type (*), dimension (*) :: a
+ integer (c_int32_t) len
+ end subroutine
+
+ subroutine acc_copyin_64_h (a, len)
+ use iso_c_binding, only: c_int64_t
+ type (*), dimension (*) :: a
+ integer (c_int64_t) len
+ end subroutine
+
+ subroutine acc_copyin_array_h (a)
+ type (*), dimension (..), contiguous :: a
+ end subroutine
+
+ subroutine acc_present_or_copyin_32_h (a, len)
+ use iso_c_binding, only: c_int32_t
+ type (*), dimension (*) :: a
+ integer (c_int32_t) len
+ end subroutine
+
+ subroutine acc_present_or_copyin_64_h (a, len)
+ use iso_c_binding, only: c_int64_t
+ type (*), dimension (*) :: a
+ integer (c_int64_t) len
+ end subroutine
+
+ subroutine acc_present_or_copyin_array_h (a)
+ type (*), dimension (..), contiguous :: a
+ end subroutine
+
+ subroutine acc_create_32_h (a, len)
+ use iso_c_binding, only: c_int32_t
+ type (*), dimension (*) :: a
+ integer (c_int32_t) len
+ end subroutine
+
+ subroutine acc_create_64_h (a, len)
+ use iso_c_binding, only: c_int64_t
+ type (*), dimension (*) :: a
+ integer (c_int64_t) len
+ end subroutine
+
+ subroutine acc_create_array_h (a)
+ type (*), dimension (..), contiguous :: a
+ end subroutine
+
+ subroutine acc_present_or_create_32_h (a, len)
+ use iso_c_binding, only: c_int32_t
+ type (*), dimension (*) :: a
+ integer (c_int32_t) len
+ end subroutine
+
+ subroutine acc_present_or_create_64_h (a, len)
+ use iso_c_binding, only: c_int64_t
+ type (*), dimension (*) :: a
+ integer (c_int64_t) len
+ end subroutine
+
+ subroutine acc_present_or_create_array_h (a)
+ type (*), dimension (..), contiguous :: a
+ end subroutine
+
+ subroutine acc_copyout_32_h (a, len)
+ use iso_c_binding, only: c_int32_t
+ type (*), dimension (*) :: a
+ integer (c_int32_t) len
+ end subroutine
+
+ subroutine acc_copyout_64_h (a, len)
+ use iso_c_binding, only: c_int64_t
+ type (*), dimension (*) :: a
+ integer (c_int64_t) len
+ end subroutine
+
+ subroutine acc_copyout_array_h (a)
+ type (*), dimension (..), contiguous :: a
+ end subroutine
+
+ subroutine acc_delete_32_h (a, len)
+ use iso_c_binding, only: c_int32_t
+ type (*), dimension (*) :: a
+ integer (c_int32_t) len
+ end subroutine
+
+ subroutine acc_delete_64_h (a, len)
+ use iso_c_binding, only: c_int64_t
+ type (*), dimension (*) :: a
+ integer (c_int64_t) len
+ end subroutine
+
+ subroutine acc_delete_array_h (a)
+ type (*), dimension (..), contiguous :: a
+ end subroutine
+
+ subroutine acc_update_device_32_h (a, len)
+ use iso_c_binding, only: c_int32_t
+ type (*), dimension (*) :: a
+ integer (c_int32_t) len
+ end subroutine
+
+ subroutine acc_update_device_64_h (a, len)
+ use iso_c_binding, only: c_int64_t
+ type (*), dimension (*) :: a
+ integer (c_int64_t) len
+ end subroutine
+
+ subroutine acc_update_device_array_h (a)
+ type (*), dimension (..), contiguous :: a
+ end subroutine
+
+ subroutine acc_update_self_32_h (a, len)
+ use iso_c_binding, only: c_int32_t
+ type (*), dimension (*) :: a
+ integer (c_int32_t) len
+ end subroutine
+
+ subroutine acc_update_self_64_h (a, len)
+ use iso_c_binding, only: c_int64_t
+ type (*), dimension (*) :: a
+ integer (c_int64_t) len
+ end subroutine
+
+ subroutine acc_update_self_array_h (a)
+ type (*), dimension (..), contiguous :: a
+ end subroutine
+
+ function acc_is_present_32_h (a, len)
+ use iso_c_binding, only: c_int32_t
+ logical acc_is_present_32_h
+ type (*), dimension (*) :: a
+ integer (c_int32_t) len
+ end function
+
+ function acc_is_present_64_h (a, len)
+ use iso_c_binding, only: c_int64_t
+ logical acc_is_present_64_h
+ type (*), dimension (*) :: a
+ integer (c_int64_t) len
+ end function
+
+ function acc_is_present_array_h (a)
+ logical acc_is_present_array_h
+ type (*), dimension (..), contiguous :: a
+ end function
+ end interface
+
+ interface
+ function acc_get_num_devices_l (d) &
+ bind (C, name = "acc_get_num_devices")
+ use iso_c_binding, only: c_int
+ integer (c_int) :: acc_get_num_devices_l
+ integer (c_int), value :: d
+ end function
+
+ subroutine acc_set_device_type_l (d) &
+ bind (C, name = "acc_set_device_type")
+ use iso_c_binding, only: c_int
+ integer (c_int), value :: d
+ end subroutine
+
+ function acc_get_device_type_l () &
+ bind (C, name = "acc_get_device_type")
+ use iso_c_binding, only: c_int
+ integer (c_int) :: acc_get_device_type_l
+ end function
+
+ subroutine acc_set_device_num_l (n, d) &
+ bind (C, name = "acc_set_device_num")
+ use iso_c_binding, only: c_int
+ integer (c_int), value :: n, d
+ end subroutine
+
+ function acc_get_device_num_l (d) &
+ bind (C, name = "acc_get_device_num")
+ use iso_c_binding, only: c_int
+ integer (c_int) :: acc_get_device_num_l
+ integer (c_int), value :: d
+ end function
+
+ function acc_async_test_l (a) &
+ bind (C, name = "acc_async_test")
+ use iso_c_binding, only: c_int
+ integer (c_int) :: acc_async_test_l
+ integer (c_int), value :: a
+ end function
+
+ function acc_async_test_all_l () &
+ bind (C, name = "acc_async_test_all")
+ use iso_c_binding, only: c_int
+ integer (c_int) :: acc_async_test_all_l
+ end function
+
+ subroutine acc_wait_l (a) &
+ bind (C, name = "acc_wait")
+ use iso_c_binding, only: c_int
+ integer (c_int), value :: a
+ end subroutine
+
+ subroutine acc_wait_async_l (a1, a2) &
+ bind (C, name = "acc_wait_async")
+ use iso_c_binding, only: c_int
+ integer (c_int), value :: a1, a2
+ end subroutine
+
+ subroutine acc_wait_all_l () &
+ bind (C, name = "acc_wait_all")
+ use iso_c_binding, only: c_int
+ end subroutine
+
+ subroutine acc_wait_all_async_l (a) &
+ bind (C, name = "acc_wait_all_async")
+ use iso_c_binding, only: c_int
+ integer (c_int), value :: a
+ end subroutine
+
+ subroutine acc_init_l (d) &
+ bind (C, name = "acc_init")
+ use iso_c_binding, only: c_int
+ integer (c_int), value :: d
+ end subroutine
+
+ subroutine acc_shutdown_l (d) &
+ bind (C, name = "acc_shutdown")
+ use iso_c_binding, only: c_int
+ integer (c_int), value :: d
+ end subroutine
+
+ function acc_on_device_l (d) &
+ bind (C, name = "acc_on_device")
+ use iso_c_binding, only: c_int
+ integer (c_int) :: acc_on_device_l
+ integer (c_int), value :: d
+ end function
+
+ subroutine acc_copyin_l (a, len) &
+ bind (C, name = "acc_copyin")
+ use iso_c_binding, only: c_size_t
+ type (*), dimension (*) :: a
+ integer (c_size_t), value :: len
+ end subroutine
+
+ subroutine acc_present_or_copyin_l (a, len) &
+ bind (C, name = "acc_present_or_copyin")
+ use iso_c_binding, only: c_size_t
+ type (*), dimension (*) :: a
+ integer (c_size_t), value :: len
+ end subroutine
+
+ subroutine acc_create_l (a, len) &
+ bind (C, name = "acc_create")
+ use iso_c_binding, only: c_size_t
+ type (*), dimension (*) :: a
+ integer (c_size_t), value :: len
+ end subroutine
+
+ subroutine acc_present_or_create_l (a, len) &
+ bind (C, name = "acc_present_or_create")
+ use iso_c_binding, only: c_size_t
+ type (*), dimension (*) :: a
+ integer (c_size_t), value :: len
+ end subroutine
+
+ subroutine acc_copyout_l (a, len) &
+ bind (C, name = "acc_copyout")
+ use iso_c_binding, only: c_size_t
+ type (*), dimension (*) :: a
+ integer (c_size_t), value :: len
+ end subroutine
+
+ subroutine acc_delete_l (a, len) &
+ bind (C, name = "acc_delete")
+ use iso_c_binding, only: c_size_t
+ type (*), dimension (*) :: a
+ integer (c_size_t), value :: len
+ end subroutine
+
+ subroutine acc_update_device_l (a, len) &
+ bind (C, name = "acc_update_device")
+ use iso_c_binding, only: c_size_t
+ type (*), dimension (*) :: a
+ integer (c_size_t), value :: len
+ end subroutine
+
+ subroutine acc_update_self_l (a, len) &
+ bind (C, name = "acc_update_self")
+ use iso_c_binding, only: c_size_t
+ type (*), dimension (*) :: a
+ integer (c_size_t), value :: len
+ end subroutine
+
+ function acc_is_present_l (a, len) &
+ bind (C, name = "acc_is_present")
+ use iso_c_binding, only: c_int32_t, c_size_t
+ integer (c_int32_t) :: acc_is_present_l
+ type (*), dimension (*) :: a
+ integer (c_size_t), value :: len
+ end function
+ end interface
+end module
+
+module openacc
+ use openacc_kinds
+ use openacc_internal
+ implicit none
+
+ public :: openacc_version
+
+ public :: acc_get_num_devices, acc_set_device_type, acc_get_device_type
+ public :: acc_set_device_num, acc_get_device_num, acc_async_test
+ public :: acc_async_test_all, acc_wait, acc_wait_async, acc_wait_all
+ public :: acc_wait_all_async, acc_init, acc_shutdown, acc_on_device
+ public :: acc_copyin, acc_present_or_copyin, acc_pcopyin, acc_create
+ public :: acc_present_or_create, acc_pcreate, acc_copyout, acc_delete
+ public :: acc_update_device, acc_update_self, acc_is_present
+
+ integer, parameter :: openacc_version = 201306
+
+ interface acc_get_num_devices
+ procedure :: acc_get_num_devices_h
+ end interface
+
+ interface acc_set_device_type
+ procedure :: acc_set_device_type_h
+ end interface
+
+ interface acc_get_device_type
+ procedure :: acc_get_device_type_h
+ end interface
+
+ interface acc_set_device_num
+ procedure :: acc_set_device_num_h
+ end interface
+
+ interface acc_get_device_num
+ procedure :: acc_get_device_num_h
+ end interface
+
+ interface acc_async_test
+ procedure :: acc_async_test_h
+ end interface
+
+ interface acc_async_test_all
+ procedure :: acc_async_test_all_h
+ end interface
+
+ interface acc_wait
+ procedure :: acc_wait_h
+ end interface
+
+ interface acc_wait_async
+ procedure :: acc_wait_async_h
+ end interface
+
+ interface acc_wait_all
+ procedure :: acc_wait_all_h
+ end interface
+
+ interface acc_wait_all_async
+ procedure :: acc_wait_all_async_h
+ end interface
+
+ interface acc_init
+ procedure :: acc_init_h
+ end interface
+
+ interface acc_shutdown
+ procedure :: acc_shutdown_h
+ end interface
+
+ interface acc_on_device
+ procedure :: acc_on_device_h
+ end interface
+
+ ! acc_malloc: Only available in C/C++
+ ! acc_free: Only available in C/C++
+
+ ! As vendor extension, the following code supports both 32bit and 64bit
+ ! arguments for "size"; the OpenACC standard only permits default-kind
+ ! integers, which are of kind 4 (i.e. 32 bits).
+ ! Additionally, the two-argument version also takes arrays as argument.
+ ! and the one argument version also scalars. Note that the code assumes
+ ! that the arrays are contiguous.
+
+ interface acc_copyin
+ procedure :: acc_copyin_32_h
+ procedure :: acc_copyin_64_h
+ procedure :: acc_copyin_array_h
+ end interface
+
+ interface acc_present_or_copyin
+ procedure :: acc_present_or_copyin_32_h
+ procedure :: acc_present_or_copyin_64_h
+ procedure :: acc_present_or_copyin_array_h
+ end interface
+
+ interface acc_pcopyin
+ procedure :: acc_present_or_copyin_32_h
+ procedure :: acc_present_or_copyin_64_h
+ procedure :: acc_present_or_copyin_array_h
+ end interface
+
+ interface acc_create
+ procedure :: acc_create_32_h
+ procedure :: acc_create_64_h
+ procedure :: acc_create_array_h
+ end interface
+
+ interface acc_present_or_create
+ procedure :: acc_present_or_create_32_h
+ procedure :: acc_present_or_create_64_h
+ procedure :: acc_present_or_create_array_h
+ end interface
+
+ interface acc_pcreate
+ procedure :: acc_present_or_create_32_h
+ procedure :: acc_present_or_create_64_h
+ procedure :: acc_present_or_create_array_h
+ end interface
+
+ interface acc_copyout
+ procedure :: acc_copyout_32_h
+ procedure :: acc_copyout_64_h
+ procedure :: acc_copyout_array_h
+ end interface
+
+ interface acc_delete
+ procedure :: acc_delete_32_h
+ procedure :: acc_delete_64_h
+ procedure :: acc_delete_array_h
+ end interface
+
+ interface acc_update_device
+ procedure :: acc_update_device_32_h
+ procedure :: acc_update_device_64_h
+ procedure :: acc_update_device_array_h
+ end interface
+
+ interface acc_update_self
+ procedure :: acc_update_self_32_h
+ procedure :: acc_update_self_64_h
+ procedure :: acc_update_self_array_h
+ end interface
+
+ ! acc_map_data: Only available in C/C++
+ ! acc_unmap_data: Only available in C/C++
+ ! acc_deviceptr: Only available in C/C++
+ ! acc_hostptr: Only available in C/C++
+
+ interface acc_is_present
+ procedure :: acc_is_present_32_h
+ procedure :: acc_is_present_64_h
+ procedure :: acc_is_present_array_h
+ end interface
+
+ ! acc_memcpy_to_device: Only available in C/C++
+ ! acc_memcpy_from_device: Only available in C/C++
+
+end module
+
+function acc_get_num_devices_h (d)
+ use openacc_internal, only: acc_get_num_devices_l
+ use openacc_kinds
+ integer acc_get_num_devices_h
+ integer (acc_device_kind) d
+ acc_get_num_devices_h = acc_get_num_devices_l (d)
+end function
+
+subroutine acc_set_device_type_h (d)
+ use openacc_internal, only: acc_set_device_type_l
+ use openacc_kinds
+ integer (acc_device_kind) d
+ call acc_set_device_type_l (d)
+end subroutine
+
+function acc_get_device_type_h ()
+ use openacc_internal, only: acc_get_device_type_l
+ use openacc_kinds
+ integer (acc_device_kind) acc_get_device_type_h
+ acc_get_device_type_h = acc_get_device_type_l ()
+end function
+
+subroutine acc_set_device_num_h (n, d)
+ use openacc_internal, only: acc_set_device_num_l
+ use openacc_kinds
+ integer n
+ integer (acc_device_kind) d
+ call acc_set_device_num_l (n, d)
+end subroutine
+
+function acc_get_device_num_h (d)
+ use openacc_internal, only: acc_get_device_num_l
+ use openacc_kinds
+ integer acc_get_device_num_h
+ integer (acc_device_kind) d
+ acc_get_device_num_h = acc_get_device_num_l (d)
+end function
+
+function acc_async_test_h (a)
+ use openacc_internal, only: acc_async_test_l
+ logical acc_async_test_h
+ integer a
+ if (acc_async_test_l (a) .eq. 1) then
+ acc_async_test_h = .TRUE.
+ else
+ acc_async_test_h = .FALSE.
+ end if
+end function
+
+function acc_async_test_all_h ()
+ use openacc_internal, only: acc_async_test_all_l
+ logical acc_async_test_all_h
+ if (acc_async_test_all_l () .eq. 1) then
+ acc_async_test_all_h = .TRUE.
+ else
+ acc_async_test_all_h = .FALSE.
+ end if
+end function
+
+subroutine acc_wait_h (a)
+ use openacc_internal, only: acc_wait_l
+ integer a
+ call acc_wait_l (a)
+end subroutine
+
+subroutine acc_wait_async_h (a1, a2)
+ use openacc_internal, only: acc_wait_async_l
+ integer a1, a2
+ call acc_wait_async_l (a1, a2)
+end subroutine
+
+subroutine acc_wait_all_h ()
+ use openacc_internal, only: acc_wait_all_l
+ call acc_wait_all_l ()
+end subroutine
+
+subroutine acc_wait_all_async_h (a)
+ use openacc_internal, only: acc_wait_all_async_l
+ integer a
+ call acc_wait_all_async_l (a)
+end subroutine
+
+subroutine acc_init_h (d)
+ use openacc_internal, only: acc_init_l
+ use openacc_kinds
+ integer (acc_device_kind) d
+ call acc_init_l (d)
+end subroutine
+
+subroutine acc_shutdown_h (d)
+ use openacc_internal, only: acc_shutdown_l
+ use openacc_kinds
+ integer (acc_device_kind) d
+ call acc_shutdown_l (d)
+end subroutine
+
+function acc_on_device_h (d)
+ use openacc_internal, only: acc_on_device_l
+ use openacc_kinds
+ integer (acc_device_kind) d
+ logical acc_on_device_h
+ if (acc_on_device_l (d) .eq. 1) then
+ acc_on_device_h = .TRUE.
+ else
+ acc_on_device_h = .FALSE.
+ end if
+end function
+
+subroutine acc_copyin_32_h (a, len)
+ use iso_c_binding, only: c_int32_t, c_size_t
+ use openacc_internal, only: acc_copyin_l
+ type (*), dimension (*) :: a
+ integer (c_int32_t) len
+ call acc_copyin_l (a, int (len, kind = c_size_t))
+end subroutine
+
+subroutine acc_copyin_64_h (a, len)
+ use iso_c_binding, only: c_int64_t, c_size_t
+ use openacc_internal, only: acc_copyin_l
+ type (*), dimension (*) :: a
+ integer (c_int64_t) len
+ call acc_copyin_l (a, int (len, kind = c_size_t))
+end subroutine
+
+subroutine acc_copyin_array_h (a)
+ use openacc_internal, only: acc_copyin_l
+ type (*), dimension (..), contiguous :: a
+ call acc_copyin_l (a, sizeof (a))
+end subroutine
+
+subroutine acc_present_or_copyin_32_h (a, len)
+ use iso_c_binding, only: c_int32_t, c_size_t
+ use openacc_internal, only: acc_present_or_copyin_l
+ type (*), dimension (*) :: a
+ integer (c_int32_t) len
+ call acc_present_or_copyin_l (a, int (len, kind = c_size_t))
+end subroutine
+
+subroutine acc_present_or_copyin_64_h (a, len)
+ use iso_c_binding, only: c_int64_t, c_size_t
+ use openacc_internal, only: acc_present_or_copyin_l
+ type (*), dimension (*) :: a
+ integer (c_int64_t) len
+ call acc_present_or_copyin_l (a, int (len, kind = c_size_t))
+end subroutine
+
+subroutine acc_present_or_copyin_array_h (a)
+ use openacc_internal, only: acc_present_or_copyin_l
+ type (*), dimension (..), contiguous :: a
+ call acc_present_or_copyin_l (a, sizeof (a))
+end subroutine
+
+subroutine acc_create_32_h (a, len)
+ use iso_c_binding, only: c_int32_t, c_size_t
+ use openacc_internal, only: acc_create_l
+ type (*), dimension (*) :: a
+ integer (c_int32_t) len
+ call acc_create_l (a, int (len, kind = c_size_t))
+end subroutine
+
+subroutine acc_create_64_h (a, len)
+ use iso_c_binding, only: c_int64_t, c_size_t
+ use openacc_internal, only: acc_create_l
+ type (*), dimension (*) :: a
+ integer (c_int64_t) len
+ call acc_create_l (a, int (len, kind = c_size_t))
+end subroutine
+
+subroutine acc_create_array_h (a)
+ use openacc_internal, only: acc_create_l
+ type (*), dimension (..), contiguous :: a
+ call acc_create_l (a, sizeof (a))
+end subroutine
+
+subroutine acc_present_or_create_32_h (a, len)
+ use iso_c_binding, only: c_int32_t, c_size_t
+ use openacc_internal, only: acc_present_or_create_l
+ type (*), dimension (*) :: a
+ integer (c_int32_t) len
+ call acc_present_or_create_l (a, int (len, kind = c_size_t))
+end subroutine
+
+subroutine acc_present_or_create_64_h (a, len)
+ use iso_c_binding, only: c_int64_t, c_size_t
+ use openacc_internal, only: acc_present_or_create_l
+ type (*), dimension (*) :: a
+ integer (c_int64_t) len
+ call acc_present_or_create_l (a, int (len, kind = c_size_t))
+end subroutine
+
+subroutine acc_present_or_create_array_h (a)
+ use openacc_internal, only: acc_present_or_create_l
+ type (*), dimension (..), contiguous :: a
+ call acc_present_or_create_l (a, sizeof (a))
+end subroutine
+
+subroutine acc_copyout_32_h (a, len)
+ use iso_c_binding, only: c_int32_t, c_size_t
+ use openacc_internal, only: acc_copyout_l
+ type (*), dimension (*) :: a
+ integer (c_int32_t) len
+ call acc_copyout_l (a, int (len, kind = c_size_t))
+end subroutine
+
+subroutine acc_copyout_64_h (a, len)
+ use iso_c_binding, only: c_int64_t, c_size_t
+ use openacc_internal, only: acc_copyout_l
+ type (*), dimension (*) :: a
+ integer (c_int64_t) len
+ call acc_copyout_l (a, int (len, kind = c_size_t))
+end subroutine
+
+subroutine acc_copyout_array_h (a)
+ use openacc_internal, only: acc_copyout_l
+ type (*), dimension (..), contiguous :: a
+ call acc_copyout_l (a, sizeof (a))
+end subroutine
+
+subroutine acc_delete_32_h (a, len)
+ use iso_c_binding, only: c_int32_t, c_size_t
+ use openacc_internal, only: acc_delete_l
+ type (*), dimension (*) :: a
+ integer (c_int32_t) len
+ call acc_delete_l (a, int (len, kind = c_size_t))
+end subroutine
+
+subroutine acc_delete_64_h (a, len)
+ use iso_c_binding, only: c_int64_t, c_size_t
+ use openacc_internal, only: acc_delete_l
+ type (*), dimension (*) :: a
+ integer (c_int64_t) len
+ call acc_delete_l (a, int (len, kind = c_size_t))
+end subroutine
+
+subroutine acc_delete_array_h (a)
+ use openacc_internal, only: acc_delete_l
+ type (*), dimension (..), contiguous :: a
+ call acc_delete_l (a, sizeof (a))
+end subroutine
+
+subroutine acc_update_device_32_h (a, len)
+ use iso_c_binding, only: c_int32_t, c_size_t
+ use openacc_internal, only: acc_update_device_l
+ type (*), dimension (*) :: a
+ integer (c_int32_t) len
+ call acc_update_device_l (a, int (len, kind = c_size_t))
+end subroutine
+
+subroutine acc_update_device_64_h (a, len)
+ use iso_c_binding, only: c_int64_t, c_size_t
+ use openacc_internal, only: acc_update_device_l
+ type (*), dimension (*) :: a
+ integer (c_int64_t) len
+ call acc_update_device_l (a, int (len, kind = c_size_t))
+end subroutine
+
+subroutine acc_update_device_array_h (a)
+ use openacc_internal, only: acc_update_device_l
+ type (*), dimension (..), contiguous :: a
+ call acc_update_device_l (a, sizeof (a))
+end subroutine
+
+subroutine acc_update_self_32_h (a, len)
+ use iso_c_binding, only: c_int32_t, c_size_t
+ use openacc_internal, only: acc_update_self_l
+ type (*), dimension (*) :: a
+ integer (c_int32_t) len
+ call acc_update_self_l (a, int (len, kind = c_size_t))
+end subroutine
+
+subroutine acc_update_self_64_h (a, len)
+ use iso_c_binding, only: c_int64_t, c_size_t
+ use openacc_internal, only: acc_update_self_l
+ type (*), dimension (*) :: a
+ integer (c_int64_t) len
+ call acc_update_self_l (a, int (len, kind = c_size_t))
+end subroutine
+
+subroutine acc_update_self_array_h (a)
+ use openacc_internal, only: acc_update_self_l
+ type (*), dimension (..), contiguous :: a
+ call acc_update_self_l (a, sizeof (a))
+end subroutine
+
+function acc_is_present_32_h (a, len)
+ use iso_c_binding, only: c_int32_t, c_size_t
+ use openacc_internal, only: acc_is_present_l
+ logical acc_is_present_32_h
+ type (*), dimension (*) :: a
+ integer (c_int32_t) len
+ if (acc_is_present_l (a, int (len, kind = c_size_t)) .eq. 1) then
+ acc_is_present_32_h = .TRUE.
+ else
+ acc_is_present_32_h = .FALSE.
+ end if
+end function
+
+function acc_is_present_64_h (a, len)
+ use iso_c_binding, only: c_int64_t, c_size_t
+ use openacc_internal, only: acc_is_present_l
+ logical acc_is_present_64_h
+ type (*), dimension (*) :: a
+ integer (c_int64_t) len
+ if (acc_is_present_l (a, int (len, kind = c_size_t)) .eq. 1) then
+ acc_is_present_64_h = .TRUE.
+ else
+ acc_is_present_64_h = .FALSE.
+ end if
+end function
+
+function acc_is_present_array_h (a)
+ use openacc_internal, only: acc_is_present_l
+ logical acc_is_present_array_h
+ type (*), dimension (..), contiguous :: a
+ acc_is_present_array_h = acc_is_present_l (a, sizeof (a)) == 1
+end function
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