17#include "kmp_wait_release.h"
18#include "kmp_taskdeps.h"
20#include "ompt-specific.h"
32#ifdef KMP_SUPPORT_GRAPH_OUTPUT
33static std::atomic<kmp_int32> kmp_node_id_seed = 0;
36static void __kmp_init_node(kmp_depnode_t *node,
bool on_stack) {
37 node->dn.successors = NULL;
40 for (
int i = 0; i < MAX_MTX_DEPS; ++i)
41 node->dn.mtx_locks[i] = NULL;
42 node->dn.mtx_num_locks = 0;
43 __kmp_init_lock(&node->dn.lock);
48 KMP_ATOMIC_ST_RLX(&node->dn.nrefs, on_stack ? 3 : 2);
49#ifdef KMP_SUPPORT_GRAPH_OUTPUT
50 node->dn.id = KMP_ATOMIC_INC(&kmp_node_id_seed);
52#if USE_ITT_BUILD && USE_ITT_NOTIFY
53 __itt_sync_create(node,
"OMP task dep node", NULL, 0);
57static inline kmp_depnode_t *__kmp_node_ref(kmp_depnode_t *node) {
58 KMP_ATOMIC_ADD(&node->dn.nrefs, 2);
62enum { KMP_DEPHASH_OTHER_SIZE = 97, KMP_DEPHASH_MASTER_SIZE = 997 };
64size_t sizes[] = {997, 2003, 4001, 8191, 16001, 32003, 64007, 131071, 270029};
65const size_t MAX_GEN = 8;
67static inline size_t __kmp_dephash_hash(kmp_intptr_t addr,
size_t hsize) {
70 return ((addr >> 6) ^ (addr >> 2)) % hsize;
73static kmp_dephash_t *__kmp_dephash_extend(kmp_info_t *thread,
74 kmp_dephash_t *current_dephash) {
77 size_t gen = current_dephash->generation + 1;
79 return current_dephash;
80 size_t new_size = sizes[gen];
82 size_t size_to_allocate =
83 new_size *
sizeof(kmp_dephash_entry_t *) +
sizeof(kmp_dephash_t);
86 h = (kmp_dephash_t *)__kmp_fast_allocate(thread, size_to_allocate);
88 h = (kmp_dephash_t *)__kmp_thread_malloc(thread, size_to_allocate);
92 h->nelements = current_dephash->nelements;
93 h->buckets = (kmp_dephash_entry **)(h + 1);
96 h->last_all = current_dephash->last_all;
99 for (
size_t i = 0; i < new_size; i++) {
100 h->buckets[i] = NULL;
104 for (
size_t i = 0; i < current_dephash->size; i++) {
105 kmp_dephash_entry_t *next, *entry;
106 for (entry = current_dephash->buckets[i]; entry; entry = next) {
107 next = entry->next_in_bucket;
110 size_t new_bucket = __kmp_dephash_hash(entry->addr, h->size);
111 entry->next_in_bucket = h->buckets[new_bucket];
112 if (entry->next_in_bucket) {
115 h->buckets[new_bucket] = entry;
121 __kmp_fast_free(thread, current_dephash);
123 __kmp_thread_free(thread, current_dephash);
129static kmp_dephash_t *__kmp_dephash_create(kmp_info_t *thread,
130 kmp_taskdata_t *current_task) {
135 if (current_task->td_flags.tasktype == TASK_IMPLICIT)
136 h_size = KMP_DEPHASH_MASTER_SIZE;
138 h_size = KMP_DEPHASH_OTHER_SIZE;
140 size_t size = h_size *
sizeof(kmp_dephash_entry_t *) +
sizeof(kmp_dephash_t);
143 h = (kmp_dephash_t *)__kmp_fast_allocate(thread, size);
145 h = (kmp_dephash_t *)__kmp_thread_malloc(thread, size);
152 h->buckets = (kmp_dephash_entry **)(h + 1);
155 for (
size_t i = 0; i < h_size; i++)
161static kmp_dephash_entry *__kmp_dephash_find(kmp_info_t *thread,
162 kmp_dephash_t **hash,
164 kmp_dephash_t *h = *hash;
165 if (h->nelements != 0 && h->nconflicts / h->size >= 1) {
166 *hash = __kmp_dephash_extend(thread, h);
169 size_t bucket = __kmp_dephash_hash(addr, h->size);
171 kmp_dephash_entry_t *entry;
172 for (entry = h->buckets[bucket]; entry; entry = entry->next_in_bucket)
173 if (entry->addr == addr)
179 entry = (kmp_dephash_entry_t *)__kmp_fast_allocate(
180 thread,
sizeof(kmp_dephash_entry_t));
182 entry = (kmp_dephash_entry_t *)__kmp_thread_malloc(
183 thread,
sizeof(kmp_dephash_entry_t));
187 entry->last_out = NULL;
189 entry->last_out = __kmp_node_ref(h->last_all);
190 entry->last_set = NULL;
191 entry->prev_set = NULL;
192 entry->last_flag = 0;
193 entry->mtx_lock = NULL;
194 entry->next_in_bucket = h->buckets[bucket];
195 h->buckets[bucket] = entry;
197 if (entry->next_in_bucket)
203static kmp_depnode_list_t *__kmp_add_node(kmp_info_t *thread,
204 kmp_depnode_list_t *list,
205 kmp_depnode_t *node) {
206 kmp_depnode_list_t *new_head;
209 new_head = (kmp_depnode_list_t *)__kmp_fast_allocate(
210 thread,
sizeof(kmp_depnode_list_t));
212 new_head = (kmp_depnode_list_t *)__kmp_thread_malloc(
213 thread,
sizeof(kmp_depnode_list_t));
216 new_head->node = __kmp_node_ref(node);
217 new_head->next = list;
222static inline void __kmp_track_dependence(kmp_int32 gtid, kmp_depnode_t *source,
224 kmp_task_t *sink_task) {
226 kmp_taskdata_t *task_source = KMP_TASK_TO_TASKDATA(source->dn.task);
227 kmp_taskdata_t *task_sink = KMP_TASK_TO_TASKDATA(sink_task);
228 if (source->dn.task && sink_task) {
231 KMP_ASSERT(task_source->is_taskgraph == task_sink->is_taskgraph);
233 if (task_sink->is_taskgraph &&
234 __kmp_tdg_is_recording(task_sink->tdg->tdg_status)) {
235 kmp_node_info_t *source_info =
236 &task_sink->tdg->record_map[task_source->td_tdg_task_id];
238 for (
int i = 0; i < source_info->nsuccessors; i++) {
239 if (source_info->successors[i] == task_sink->td_tdg_task_id) {
245 if (source_info->nsuccessors >= source_info->successors_size) {
246 source_info->successors_size = 2 * source_info->successors_size;
247 kmp_int32 *old_succ_ids = source_info->successors;
248 kmp_int32 *new_succ_ids = (kmp_int32 *)__kmp_allocate(
249 source_info->successors_size *
sizeof(kmp_int32));
250 source_info->successors = new_succ_ids;
251 __kmp_free(old_succ_ids);
254 source_info->successors[source_info->nsuccessors] =
255 task_sink->td_tdg_task_id;
256 source_info->nsuccessors++;
258 kmp_node_info_t *sink_info =
259 &(task_sink->tdg->record_map[task_sink->td_tdg_task_id]);
260 sink_info->npredecessors++;
264#ifdef KMP_SUPPORT_GRAPH_OUTPUT
265 kmp_taskdata_t *task_source = KMP_TASK_TO_TASKDATA(source->dn.task);
268 kmp_taskdata_t *task_sink = KMP_TASK_TO_TASKDATA(sink_task);
270 __kmp_printf(
"%d(%s) -> %d(%s)\n", source->dn.id,
271 task_source->td_ident->psource, sink->dn.id,
272 task_sink->td_ident->psource);
274#if OMPT_SUPPORT && OMPT_OPTIONAL
278 if (ompt_enabled.ompt_callback_task_dependence) {
279 kmp_taskdata_t *task_source = KMP_TASK_TO_TASKDATA(source->dn.task);
280 ompt_data_t *sink_data;
282 sink_data = &(KMP_TASK_TO_TASKDATA(sink_task)->ompt_task_info.task_data);
284 sink_data = &__kmp_threads[gtid]->th.ompt_thread_info.task_data;
286 ompt_callbacks.ompt_callback(ompt_callback_task_dependence)(
287 &(task_source->ompt_task_info.task_data), sink_data);
292kmp_base_depnode_t *__kmpc_task_get_depnode(kmp_task_t *task) {
293 kmp_taskdata_t *td = KMP_TASK_TO_TASKDATA(task);
294 return td->td_depnode ? &(td->td_depnode->dn) : NULL;
297kmp_depnode_list_t *__kmpc_task_get_successors(kmp_task_t *task) {
298 kmp_taskdata_t *td = KMP_TASK_TO_TASKDATA(task);
299 return td->td_depnode->dn.successors;
302static inline kmp_int32
303__kmp_depnode_link_successor(kmp_int32 gtid, kmp_info_t *thread,
304 kmp_task_t *task, kmp_depnode_t *node,
305 kmp_depnode_list_t *plist) {
308 kmp_int32 npredecessors = 0;
310 for (kmp_depnode_list_t *p = plist; p; p = p->next) {
311 kmp_depnode_t *dep = p->node;
313 kmp_tdg_status tdg_status = KMP_TDG_NONE;
315 kmp_taskdata_t *td = KMP_TASK_TO_TASKDATA(task);
316 if (td->is_taskgraph)
317 tdg_status = KMP_TASK_TO_TASKDATA(task)->tdg->tdg_status;
318 if (__kmp_tdg_is_recording(tdg_status))
319 __kmp_track_dependence(gtid, dep, node, task);
323 KMP_ACQUIRE_DEPNODE(gtid, dep);
325 if (!dep->dn.successors || dep->dn.successors->node != node) {
327 if (!(__kmp_tdg_is_recording(tdg_status)) && task)
329 __kmp_track_dependence(gtid, dep, node, task);
330 dep->dn.successors = __kmp_add_node(thread, dep->dn.successors, node);
331 KA_TRACE(40, (
"__kmp_process_deps: T#%d adding dependence from %p to "
333 gtid, KMP_TASK_TO_TASKDATA(dep->dn.task),
334 KMP_TASK_TO_TASKDATA(task)));
338 KMP_RELEASE_DEPNODE(gtid, dep);
341 return npredecessors;
345static inline kmp_int32 __kmp_depnode_link_successor(kmp_int32 gtid,
348 kmp_depnode_t *source,
349 kmp_depnode_t *sink) {
352 kmp_int32 npredecessors = 0;
354 kmp_tdg_status tdg_status = KMP_TDG_NONE;
355 kmp_taskdata_t *td = KMP_TASK_TO_TASKDATA(task);
357 if (td->is_taskgraph)
358 tdg_status = KMP_TASK_TO_TASKDATA(task)->tdg->tdg_status;
359 if (__kmp_tdg_is_recording(tdg_status) && sink->dn.task)
360 __kmp_track_dependence(gtid, sink, source, task);
365 KMP_ACQUIRE_DEPNODE(gtid, sink);
367 if (!sink->dn.successors || sink->dn.successors->node != source) {
369 if (!(__kmp_tdg_is_recording(tdg_status)) && task)
371 __kmp_track_dependence(gtid, sink, source, task);
372 sink->dn.successors = __kmp_add_node(thread, sink->dn.successors, source);
373 KA_TRACE(40, (
"__kmp_process_deps: T#%d adding dependence from %p to "
375 gtid, KMP_TASK_TO_TASKDATA(sink->dn.task),
376 KMP_TASK_TO_TASKDATA(task)));
378 if (__kmp_tdg_is_recording(tdg_status)) {
379 kmp_taskdata_t *tdd = KMP_TASK_TO_TASKDATA(sink->dn.task);
380 if (tdd->is_taskgraph) {
381 if (tdd->td_flags.onced)
393 KMP_RELEASE_DEPNODE(gtid, sink);
395 return npredecessors;
398static inline kmp_int32
399__kmp_process_dep_all(kmp_int32 gtid, kmp_depnode_t *node, kmp_dephash_t *h,
400 bool dep_barrier, kmp_task_t *task) {
401 KA_TRACE(30, (
"__kmp_process_dep_all: T#%d processing dep_all, "
402 "dep_barrier = %d\n",
404 kmp_info_t *thread = __kmp_threads[gtid];
405 kmp_int32 npredecessors = 0;
409 __kmp_depnode_link_successor(gtid, thread, task, node, h->last_all);
410 __kmp_node_deref(thread, h->last_all);
412 h->last_all = __kmp_node_ref(node);
421 for (
size_t i = 0; i < h->size; i++) {
422 kmp_dephash_entry_t *info = h->buckets[i];
425 for (; info; info = info->next_in_bucket) {
427 kmp_depnode_t *last_out = info->last_out;
428 kmp_depnode_list_t *last_set = info->last_set;
429 kmp_depnode_list_t *prev_set = info->prev_set;
432 __kmp_depnode_link_successor(gtid, thread, task, node, last_set);
433 __kmp_depnode_list_free(thread, last_set);
434 __kmp_depnode_list_free(thread, prev_set);
435 info->last_set = NULL;
436 info->prev_set = NULL;
440 __kmp_depnode_link_successor(gtid, thread, task, node, last_out);
442 __kmp_node_deref(thread, last_out);
444 info->last_out = __kmp_node_ref(node);
446 info->last_out = NULL;
450 KA_TRACE(30, (
"__kmp_process_dep_all: T#%d found %d predecessors\n", gtid,
452 return npredecessors;
455template <
bool filter>
456static inline kmp_int32
457__kmp_process_deps(kmp_int32 gtid, kmp_depnode_t *node, kmp_dephash_t **hash,
458 bool dep_barrier, kmp_int32 ndeps,
459 kmp_depend_info_t *dep_list, kmp_task_t *task) {
460 KA_TRACE(30, (
"__kmp_process_deps<%d>: T#%d processing %d dependences : "
461 "dep_barrier = %d\n",
462 filter, gtid, ndeps, dep_barrier));
464 kmp_info_t *thread = __kmp_threads[gtid];
465 kmp_int32 npredecessors = 0;
466 for (kmp_int32 i = 0; i < ndeps; i++) {
467 const kmp_depend_info_t *dep = &dep_list[i];
469 if (filter && dep->base_addr == 0)
472 kmp_dephash_entry_t *info =
473 __kmp_dephash_find(thread, hash, dep->base_addr);
474 kmp_depnode_t *last_out = info->last_out;
475 kmp_depnode_list_t *last_set = info->last_set;
476 kmp_depnode_list_t *prev_set = info->prev_set;
478 if (dep->flags.out) {
481 __kmp_depnode_link_successor(gtid, thread, task, node, last_set);
482 __kmp_depnode_list_free(thread, last_set);
483 __kmp_depnode_list_free(thread, prev_set);
484 info->last_set = NULL;
485 info->prev_set = NULL;
489 __kmp_depnode_link_successor(gtid, thread, task, node, last_out);
491 __kmp_node_deref(thread, last_out);
493 info->last_out = __kmp_node_ref(node);
498 info->last_out = NULL;
501 if (info->last_flag == 0 || info->last_flag == dep->flag) {
505 __kmp_depnode_link_successor(gtid, thread, task, node, last_out);
508 __kmp_depnode_link_successor(gtid, thread, task, node, prev_set);
511 __kmp_node_deref(thread, last_out);
512 info->last_out = NULL;
513 __kmp_depnode_list_free(thread, prev_set);
514 info->prev_set = NULL;
519 __kmp_depnode_link_successor(gtid, thread, task, node, last_set);
521 __kmp_node_deref(thread, last_out);
522 info->last_out = NULL;
524 __kmp_depnode_list_free(thread, prev_set);
527 info->prev_set = last_set;
529 info->prev_set = NULL;
532 info->last_set = NULL;
537 info->last_flag = dep->flag;
538 info->last_set = __kmp_add_node(thread, info->last_set, node);
541 if (dep->flag == KMP_DEP_MTX) {
542 if (info->mtx_lock == NULL) {
543 info->mtx_lock = (kmp_lock_t *)__kmp_allocate(
sizeof(kmp_lock_t));
544 __kmp_init_lock(info->mtx_lock);
546 KMP_DEBUG_ASSERT(node->dn.mtx_num_locks < MAX_MTX_DEPS);
549 for (m = 0; m < MAX_MTX_DEPS; ++m) {
551 if (node->dn.mtx_locks[m] < info->mtx_lock) {
552 KMP_DEBUG_ASSERT(!node->dn.mtx_locks[node->dn.mtx_num_locks]);
553 for (
int n = node->dn.mtx_num_locks; n > m; --n) {
555 KMP_DEBUG_ASSERT(node->dn.mtx_locks[n - 1] != NULL);
556 node->dn.mtx_locks[n] = node->dn.mtx_locks[n - 1];
558 node->dn.mtx_locks[m] = info->mtx_lock;
562 KMP_DEBUG_ASSERT(m < MAX_MTX_DEPS);
563 node->dn.mtx_num_locks++;
567 KA_TRACE(30, (
"__kmp_process_deps<%d>: T#%d found %d predecessors\n", filter,
568 gtid, npredecessors));
569 return npredecessors;
572#define NO_DEP_BARRIER (false)
573#define DEP_BARRIER (true)
576static bool __kmp_check_deps(kmp_int32 gtid, kmp_depnode_t *node,
577 kmp_task_t *task, kmp_dephash_t **hash,
578 bool dep_barrier, kmp_int32 ndeps,
579 kmp_depend_info_t *dep_list,
580 kmp_int32 ndeps_noalias,
581 kmp_depend_info_t *noalias_dep_list) {
582 int i, n_mtxs = 0, dep_all = 0;
584 kmp_taskdata_t *taskdata = KMP_TASK_TO_TASKDATA(task);
586 KA_TRACE(20, (
"__kmp_check_deps: T#%d checking dependences for task %p : %d "
587 "possibly aliased dependences, %d non-aliased dependences : "
588 "dep_barrier=%d .\n",
589 gtid, taskdata, ndeps, ndeps_noalias, dep_barrier));
593 for (i = 0; i < ndeps; i++) {
594 if (dep_list[i].base_addr != 0 &&
595 dep_list[i].base_addr != (kmp_intptr_t)KMP_SIZE_T_MAX) {
597 dep_list[i].flag == KMP_DEP_IN || dep_list[i].flag == KMP_DEP_OUT ||
598 dep_list[i].flag == KMP_DEP_INOUT ||
599 dep_list[i].flag == KMP_DEP_MTX || dep_list[i].flag == KMP_DEP_SET);
600 for (
int j = i + 1; j < ndeps; j++) {
601 if (dep_list[i].base_addr == dep_list[j].base_addr) {
602 if (dep_list[i].flag != dep_list[j].flag) {
604 dep_list[i].flag = KMP_DEP_OUT;
606 dep_list[j].base_addr = 0;
609 if (dep_list[i].flag == KMP_DEP_MTX) {
611 if (n_mtxs < MAX_MTX_DEPS && task != NULL) {
614 dep_list[i].flag = KMP_DEP_OUT;
617 }
else if (dep_list[i].flag == KMP_DEP_ALL ||
618 dep_list[i].base_addr == (kmp_intptr_t)KMP_SIZE_T_MAX) {
631 node->dn.npredecessors = -1;
638 npredecessors = __kmp_process_deps<true>(gtid, node, hash, dep_barrier,
639 ndeps, dep_list, task);
640 npredecessors += __kmp_process_deps<false>(
641 gtid, node, hash, dep_barrier, ndeps_noalias, noalias_dep_list, task);
643 npredecessors = __kmp_process_dep_all(gtid, node, *hash, dep_barrier, task);
646 node->dn.task = task;
656 node->dn.npredecessors.fetch_add(npredecessors) + npredecessors;
658 KA_TRACE(20, (
"__kmp_check_deps: T#%d found %d predecessors for task %p \n",
659 gtid, npredecessors, taskdata));
663 return npredecessors > 0 ? true :
false;
683 kmp_task_t *new_task, kmp_int32 ndeps,
684 kmp_depend_info_t *dep_list,
685 kmp_int32 ndeps_noalias,
686 kmp_depend_info_t *noalias_dep_list) {
688 kmp_taskdata_t *new_taskdata = KMP_TASK_TO_TASKDATA(new_task);
689 KA_TRACE(10, (
"__kmpc_omp_task_with_deps(enter): T#%d loc=%p task=%p\n", gtid,
690 loc_ref, new_taskdata));
691 __kmp_assert_valid_gtid(gtid);
692 kmp_info_t *thread = __kmp_threads[gtid];
693 kmp_taskdata_t *current_task = thread->th.th_current_task;
697 if (new_taskdata->is_taskgraph &&
698 __kmp_tdg_is_recording(new_taskdata->tdg->tdg_status)) {
699 kmp_tdg_info_t *tdg = new_taskdata->tdg;
701 if (new_taskdata->td_task_id >= tdg->map_size) {
702 __kmp_acquire_bootstrap_lock(&tdg->graph_lock);
703 if (new_taskdata->td_task_id >= tdg->map_size) {
704 kmp_uint old_size = tdg->map_size;
705 kmp_uint new_size = old_size * 2;
706 kmp_node_info_t *old_record = tdg->record_map;
707 kmp_node_info_t *new_record = (kmp_node_info_t *)__kmp_allocate(
708 new_size *
sizeof(kmp_node_info_t));
709 KMP_MEMCPY(new_record, tdg->record_map,
710 old_size *
sizeof(kmp_node_info_t));
711 tdg->record_map = new_record;
713 __kmp_free(old_record);
715 for (kmp_int i = old_size; i < new_size; i++) {
716 kmp_int32 *successorsList = (kmp_int32 *)__kmp_allocate(
717 __kmp_successors_size *
sizeof(kmp_int32));
718 new_record[i].task =
nullptr;
719 new_record[i].successors = successorsList;
720 new_record[i].nsuccessors = 0;
721 new_record[i].npredecessors = 0;
722 new_record[i].successors_size = __kmp_successors_size;
723 KMP_ATOMIC_ST_REL(&new_record[i].npredecessors_counter, 0);
727 tdg->map_size = new_size;
729 __kmp_release_bootstrap_lock(&tdg->graph_lock);
731 tdg->record_map[new_taskdata->td_tdg_task_id].task = new_task;
732 tdg->record_map[new_taskdata->td_tdg_task_id].parent_task =
733 new_taskdata->td_parent;
734 KMP_ATOMIC_INC(&tdg->num_tasks);
738 if (ompt_enabled.enabled) {
739 if (!current_task->ompt_task_info.frame.enter_frame.ptr)
740 current_task->ompt_task_info.frame.enter_frame.ptr =
741 OMPT_GET_FRAME_ADDRESS(0);
742 if (ompt_enabled.ompt_callback_task_create) {
743 ompt_callbacks.ompt_callback(ompt_callback_task_create)(
744 &(current_task->ompt_task_info.task_data),
745 &(current_task->ompt_task_info.frame),
746 &(new_taskdata->ompt_task_info.task_data),
747 TASK_TYPE_DETAILS_FORMAT(new_taskdata), 1,
748 OMPT_LOAD_OR_GET_RETURN_ADDRESS(gtid));
751 new_taskdata->ompt_task_info.frame.enter_frame.ptr =
752 OMPT_GET_FRAME_ADDRESS(0);
757 if (ndeps + ndeps_noalias > 0 && ompt_enabled.ompt_callback_dependences) {
760 int ompt_ndeps = ndeps + ndeps_noalias;
761 ompt_dependence_t *ompt_deps = (ompt_dependence_t *)KMP_OMPT_DEPS_ALLOC(
762 thread, (ndeps + ndeps_noalias) *
sizeof(ompt_dependence_t));
764 KMP_ASSERT(ompt_deps != NULL);
766 for (i = 0; i < ndeps; i++) {
767 ompt_deps[i].variable.ptr = (
void *)dep_list[i].base_addr;
768 if (dep_list[i].base_addr == (kmp_intptr_t)KMP_SIZE_T_MAX)
769 ompt_deps[i].dependence_type = ompt_dependence_type_out_all_memory;
770 else if (dep_list[i].flags.in && dep_list[i].flags.out)
771 ompt_deps[i].dependence_type = ompt_dependence_type_inout;
772 else if (dep_list[i].flags.out)
773 ompt_deps[i].dependence_type = ompt_dependence_type_out;
774 else if (dep_list[i].flags.in)
775 ompt_deps[i].dependence_type = ompt_dependence_type_in;
776 else if (dep_list[i].flags.mtx)
777 ompt_deps[i].dependence_type = ompt_dependence_type_mutexinoutset;
778 else if (dep_list[i].flags.set)
779 ompt_deps[i].dependence_type = ompt_dependence_type_inoutset;
780 else if (dep_list[i].flags.all)
781 ompt_deps[i].dependence_type = ompt_dependence_type_out_all_memory;
783 for (i = 0; i < ndeps_noalias; i++) {
784 ompt_deps[ndeps + i].variable.ptr = (
void *)noalias_dep_list[i].base_addr;
785 if (noalias_dep_list[i].base_addr == (kmp_intptr_t)KMP_SIZE_T_MAX)
786 ompt_deps[ndeps + i].dependence_type =
787 ompt_dependence_type_out_all_memory;
788 else if (noalias_dep_list[i].flags.in && noalias_dep_list[i].flags.out)
789 ompt_deps[ndeps + i].dependence_type = ompt_dependence_type_inout;
790 else if (noalias_dep_list[i].flags.out)
791 ompt_deps[ndeps + i].dependence_type = ompt_dependence_type_out;
792 else if (noalias_dep_list[i].flags.in)
793 ompt_deps[ndeps + i].dependence_type = ompt_dependence_type_in;
794 else if (noalias_dep_list[i].flags.mtx)
795 ompt_deps[ndeps + i].dependence_type =
796 ompt_dependence_type_mutexinoutset;
797 else if (noalias_dep_list[i].flags.set)
798 ompt_deps[ndeps + i].dependence_type = ompt_dependence_type_inoutset;
799 else if (noalias_dep_list[i].flags.all)
800 ompt_deps[ndeps + i].dependence_type =
801 ompt_dependence_type_out_all_memory;
803 ompt_callbacks.ompt_callback(ompt_callback_dependences)(
804 &(new_taskdata->ompt_task_info.task_data), ompt_deps, ompt_ndeps);
807 KMP_OMPT_DEPS_FREE(thread, ompt_deps);
812 bool serial = current_task->td_flags.team_serial ||
813 current_task->td_flags.tasking_ser ||
814 current_task->td_flags.final;
815 kmp_task_team_t *task_team = thread->th.th_task_team;
817 !(task_team && (task_team->tt.tt_found_proxy_tasks ||
818 task_team->tt.tt_hidden_helper_task_encountered));
820 if (!serial && (ndeps > 0 || ndeps_noalias > 0)) {
822 if (current_task->td_dephash == NULL)
823 current_task->td_dephash = __kmp_dephash_create(thread, current_task);
826 kmp_depnode_t *node =
827 (kmp_depnode_t *)__kmp_fast_allocate(thread,
sizeof(kmp_depnode_t));
829 kmp_depnode_t *node =
830 (kmp_depnode_t *)__kmp_thread_malloc(thread,
sizeof(kmp_depnode_t));
833 __kmp_init_node(node,
false);
834 new_taskdata->td_depnode = node;
836 if (__kmp_check_deps(gtid, node, new_task, ¤t_task->td_dephash,
837 NO_DEP_BARRIER, ndeps, dep_list, ndeps_noalias,
839 KA_TRACE(10, (
"__kmpc_omp_task_with_deps(exit): T#%d task had blocking "
841 "loc=%p task=%p, return: TASK_CURRENT_NOT_QUEUED\n",
842 gtid, loc_ref, new_taskdata));
844 if (ompt_enabled.enabled) {
845 current_task->ompt_task_info.frame.enter_frame = ompt_data_none;
848 return TASK_CURRENT_NOT_QUEUED;
851 KA_TRACE(10, (
"__kmpc_omp_task_with_deps(exit): T#%d ignored dependences "
852 "for task (serialized) loc=%p task=%p\n",
853 gtid, loc_ref, new_taskdata));
856 KA_TRACE(10, (
"__kmpc_omp_task_with_deps(exit): T#%d task had no blocking "
858 "loc=%p task=%p, transferring to __kmp_omp_task\n",
859 gtid, loc_ref, new_taskdata));
861 kmp_int32 ret = __kmp_omp_task(gtid, new_task,
true);
863 if (ompt_enabled.enabled) {
864 current_task->ompt_task_info.frame.enter_frame = ompt_data_none;
871void __ompt_taskwait_dep_finish(kmp_taskdata_t *current_task,
872 ompt_data_t *taskwait_task_data) {
873 if (ompt_enabled.ompt_callback_task_schedule) {
874 ompt_callbacks.ompt_callback(ompt_callback_task_schedule)(
875 taskwait_task_data, ompt_taskwait_complete, NULL);
877 current_task->ompt_task_info.frame.enter_frame.ptr = NULL;
878 *taskwait_task_data = ompt_data_none;
894 kmp_depend_info_t *dep_list, kmp_int32 ndeps_noalias,
895 kmp_depend_info_t *noalias_dep_list) {
896 __kmpc_omp_taskwait_deps_51(loc_ref, gtid, ndeps, dep_list, ndeps_noalias,
897 noalias_dep_list,
false);
905void __kmpc_omp_taskwait_deps_51(
ident_t *loc_ref, kmp_int32 gtid,
906 kmp_int32 ndeps, kmp_depend_info_t *dep_list,
907 kmp_int32 ndeps_noalias,
908 kmp_depend_info_t *noalias_dep_list,
909 kmp_int32 has_no_wait) {
910 KA_TRACE(10, (
"__kmpc_omp_taskwait_deps(enter): T#%d loc=%p nowait#%d\n",
911 gtid, loc_ref, has_no_wait));
912 if (ndeps == 0 && ndeps_noalias == 0) {
913 KA_TRACE(10, (
"__kmpc_omp_taskwait_deps(exit): T#%d has no dependences to "
914 "wait upon : loc=%p\n",
918 __kmp_assert_valid_gtid(gtid);
919 kmp_info_t *thread = __kmp_threads[gtid];
920 kmp_taskdata_t *current_task = thread->th.th_current_task;
928 ompt_data_t *taskwait_task_data = &thread->th.ompt_thread_info.task_data;
929 KMP_ASSERT(taskwait_task_data->ptr == NULL);
930 if (ompt_enabled.enabled) {
931 if (!current_task->ompt_task_info.frame.enter_frame.ptr)
932 current_task->ompt_task_info.frame.enter_frame.ptr =
933 OMPT_GET_FRAME_ADDRESS(0);
934 if (ompt_enabled.ompt_callback_task_create) {
935 ompt_callbacks.ompt_callback(ompt_callback_task_create)(
936 &(current_task->ompt_task_info.task_data),
937 &(current_task->ompt_task_info.frame), taskwait_task_data,
938 ompt_task_taskwait | ompt_task_undeferred | ompt_task_mergeable, 1,
939 OMPT_LOAD_OR_GET_RETURN_ADDRESS(gtid));
945 if (ndeps + ndeps_noalias > 0 && ompt_enabled.ompt_callback_dependences) {
948 int ompt_ndeps = ndeps + ndeps_noalias;
949 ompt_dependence_t *ompt_deps = (ompt_dependence_t *)KMP_OMPT_DEPS_ALLOC(
950 thread, (ndeps + ndeps_noalias) *
sizeof(ompt_dependence_t));
952 KMP_ASSERT(ompt_deps != NULL);
954 for (i = 0; i < ndeps; i++) {
955 ompt_deps[i].variable.ptr = (
void *)dep_list[i].base_addr;
956 if (dep_list[i].flags.in && dep_list[i].flags.out)
957 ompt_deps[i].dependence_type = ompt_dependence_type_inout;
958 else if (dep_list[i].flags.out)
959 ompt_deps[i].dependence_type = ompt_dependence_type_out;
960 else if (dep_list[i].flags.in)
961 ompt_deps[i].dependence_type = ompt_dependence_type_in;
962 else if (dep_list[i].flags.mtx)
963 ompt_deps[ndeps + i].dependence_type =
964 ompt_dependence_type_mutexinoutset;
965 else if (dep_list[i].flags.set)
966 ompt_deps[ndeps + i].dependence_type = ompt_dependence_type_inoutset;
968 for (i = 0; i < ndeps_noalias; i++) {
969 ompt_deps[ndeps + i].variable.ptr = (
void *)noalias_dep_list[i].base_addr;
970 if (noalias_dep_list[i].flags.in && noalias_dep_list[i].flags.out)
971 ompt_deps[ndeps + i].dependence_type = ompt_dependence_type_inout;
972 else if (noalias_dep_list[i].flags.out)
973 ompt_deps[ndeps + i].dependence_type = ompt_dependence_type_out;
974 else if (noalias_dep_list[i].flags.in)
975 ompt_deps[ndeps + i].dependence_type = ompt_dependence_type_in;
976 else if (noalias_dep_list[i].flags.mtx)
977 ompt_deps[ndeps + i].dependence_type =
978 ompt_dependence_type_mutexinoutset;
979 else if (noalias_dep_list[i].flags.set)
980 ompt_deps[ndeps + i].dependence_type = ompt_dependence_type_inoutset;
982 ompt_callbacks.ompt_callback(ompt_callback_dependences)(
983 taskwait_task_data, ompt_deps, ompt_ndeps);
986 KMP_OMPT_DEPS_FREE(thread, ompt_deps);
995 bool ignore = current_task->td_flags.team_serial ||
996 current_task->td_flags.tasking_ser ||
997 current_task->td_flags.final;
999 ignore && thread->th.th_task_team != NULL &&
1000 thread->th.th_task_team->tt.tt_found_proxy_tasks == FALSE &&
1001 thread->th.th_task_team->tt.tt_hidden_helper_task_encountered == FALSE;
1002 ignore = ignore || current_task->td_dephash == NULL;
1005 KA_TRACE(10, (
"__kmpc_omp_taskwait_deps(exit): T#%d has no blocking "
1006 "dependences : loc=%p\n",
1009 __ompt_taskwait_dep_finish(current_task, taskwait_task_data);
1014 kmp_depnode_t node = {0};
1015 __kmp_init_node(&node,
true);
1017 if (!__kmp_check_deps(gtid, &node, NULL, ¤t_task->td_dephash,
1018 DEP_BARRIER, ndeps, dep_list, ndeps_noalias,
1019 noalias_dep_list)) {
1020 KA_TRACE(10, (
"__kmpc_omp_taskwait_deps(exit): T#%d has no blocking "
1021 "dependences : loc=%p\n",
1024 __ompt_taskwait_dep_finish(current_task, taskwait_task_data);
1030 while ((nrefs = node.dn.nrefs) > 3) {
1031 KMP_DEBUG_ASSERT((nrefs & 1) == 1);
1034 KMP_DEBUG_ASSERT(nrefs == 3);
1039 int thread_finished = FALSE;
1040 kmp_flag_32<false, false> flag(
1041 (std::atomic<kmp_uint32> *)&node.dn.npredecessors, 0U);
1042 while (node.dn.npredecessors > 0) {
1043 flag.execute_tasks(thread, gtid, FALSE,
1044 &thread_finished USE_ITT_BUILD_ARG(NULL),
1045 __kmp_task_stealing_constraint);
1054 while ((nrefs = node.dn.nrefs) > 3) {
1055 KMP_DEBUG_ASSERT((nrefs & 1) == 1);
1058 KMP_DEBUG_ASSERT(nrefs == 3);
1061 __ompt_taskwait_dep_finish(current_task, taskwait_task_data);
1063 KA_TRACE(10, (
"__kmpc_omp_taskwait_deps(exit): T#%d finished waiting : loc=%p\
kmp_int32 __kmpc_omp_task_with_deps(ident_t *loc_ref, kmp_int32 gtid, kmp_task_t *new_task, kmp_int32 ndeps, kmp_depend_info_t *dep_list, kmp_int32 ndeps_noalias, kmp_depend_info_t *noalias_dep_list)
void __kmpc_omp_wait_deps(ident_t *loc_ref, kmp_int32 gtid, kmp_int32 ndeps, kmp_depend_info_t *dep_list, kmp_int32 ndeps_noalias, kmp_depend_info_t *noalias_dep_list)