28 #if __TBB_STATISTICS_STDOUT 47 #if __TBB_TASK_GROUP_CONTEXT 52 #if __TBB_TASK_PRIORITY 59 my_ref_top_priority = &a->my_top_priority;
60 my_ref_reload_epoch = &a->my_reload_epoch;
62 my_local_reload_epoch = *my_ref_reload_epoch;
68 return !slot &&
as_atomic( slot ).compare_and_swap( &
s, NULL ) == NULL;
74 size_t index =
s.my_arena_index;
75 if ( index < lower || index >= upper ) index =
s.my_random.get() % (upper - lower) + lower;
78 for (
size_t i = index; i < upper; ++i )
80 for (
size_t i = lower; i < index; ++i )
85 template <
bool as_worker>
105 __TBB_ASSERT(
s.my_innermost_running_task ==
s.my_dummy_task, NULL );
115 s.attach_arena(
this, index,
false );
117 #if !__TBB_FP_CONTEXT 121 #if __TBB_ARENA_OBSERVER 122 __TBB_ASSERT( !
s.my_last_local_observer,
"There cannot be notified local observers when entering arena" );
123 my_observers.notify_entry_observers(
s.my_last_local_observer,
true );
129 s.local_wait_for_all( *
s.my_dummy_task, NULL );
134 __TBB_ASSERT(
s.my_innermost_running_task ==
s.my_dummy_task, NULL );
138 "Worker cannot leave arena while its task pool is not reset" );
151 s.my_innermost_running_task =
s.my_dummy_task;
152 s.local_wait_for_all(*
s.my_dummy_task,t);
155 #if __TBB_ARENA_OBSERVER 156 my_observers.notify_exit_observers(
s.my_last_local_observer,
true );
157 s.my_last_local_observer = NULL;
159 #if __TBB_TASK_PRIORITY 160 if (
s.my_offloaded_tasks )
161 orphan_offloaded_tasks(
s );
164 ++
s.my_counters.arena_roundtrips;
165 *
my_slots[index].my_counters +=
s.my_counters;
166 s.my_counters.reset();
172 __TBB_ASSERT(
s.my_innermost_running_task ==
s.my_dummy_task, NULL );
179 on_thread_leaving<ref_worker>();
183 __TBB_ASSERT( !my_guard,
"improperly allocated arena?" );
186 #if __TBB_TASK_PRIORITY 187 __TBB_ASSERT( !my_reload_epoch && !my_orphaned_tasks && !my_skipped_fifo_priority,
"New arena object is not zeroed" );
196 #if __TBB_TASK_PRIORITY 197 my_bottom_priority = my_top_priority = normalized_normal_priority;
200 #if __TBB_ARENA_OBSERVER 201 my_observers.my_arena =
this;
203 #if __TBB_PREVIEW_RESUMABLE_TASKS 204 my_co_cache.init(4 * num_slots);
212 #if __TBB_PREVIEW_RESUMABLE_TASKS 219 #if __TBB_PREVIEW_CRITICAL_TASKS 223 my_slots[i].my_counters =
new (
NFS_Allocate(1,
sizeof(statistics_counters), NULL) ) statistics_counters;
228 #if __TBB_PREVIEW_CRITICAL_TASKS 230 ITT_SYNC_CREATE(&my_critical_task_stream, SyncType_Scheduler, SyncObj_CriticalTaskStream);
232 #if __TBB_ENQUEUE_ENFORCED_CONCURRENCY 233 my_local_concurrency_mode =
false;
234 my_global_concurrency_mode =
false;
236 #if !__TBB_FP_CONTEXT 246 unsigned char* storage = (
unsigned char*)
NFS_Allocate( 1, n, NULL );
248 memset( storage, 0, n );
257 #if __TBB_ENQUEUE_ENFORCED_CONCURRENCY 260 #if !__TBB_STATISTICS_EARLY_DUMP 264 intptr_t drained = 0;
277 #if __TBB_PREVIEW_RESUMABLE_TASKS 279 my_co_cache.cleanup();
281 #if __TBB_PREVIEW_CRITICAL_TASKS 282 __TBB_ASSERT( my_critical_task_stream.drain()==0,
"Not all critical tasks were executed");
284 #if __TBB_COUNT_TASK_NODES 285 my_market->update_task_node_count( -drained );
289 #if __TBB_TASK_GROUP_CONTEXT 290 __TBB_ASSERT( my_default_ctx,
"Master thread never entered the arena?" );
291 my_default_ctx->~task_group_context();
294 #if __TBB_ARENA_OBSERVER 295 if ( !my_observers.empty() )
296 my_observers.clear();
302 #if TBB_USE_ASSERT > 1 309 void arena::dump_arena_statistics () {
310 statistics_counters total;
312 #if __TBB_STATISTICS_EARLY_DUMP 315 *
my_slots[i].my_counters +=
s->my_counters;
321 dump_statistics( *
my_slots[i].my_counters, i );
324 dump_statistics( *
my_slots[0].my_counters, 0 );
325 #if __TBB_STATISTICS_STDOUT 326 #if !__TBB_STATISTICS_TOTALS_ONLY 327 printf(
"----------------------------------------------\n" );
329 dump_statistics( total, workers_counters_total );
331 dump_statistics( total, arena_counters_total );
332 #if !__TBB_STATISTICS_TOTALS_ONLY 333 printf(
"==============================================\n" );
339 #if __TBB_TASK_PRIORITY 344 inline bool arena::may_have_tasks ( generic_scheduler*
s,
bool& tasks_present,
bool& dequeuing_possible ) {
345 if ( !
s ||
s->my_arena !=
this )
347 dequeuing_possible |=
s->worker_outermost_level();
348 if (
s->my_pool_reshuffling_pending ) {
351 tasks_present =
true;
354 if (
s->my_offloaded_tasks ) {
355 tasks_present =
true;
356 if (
s->my_local_reload_epoch < *
s->my_ref_reload_epoch ) {
365 void arena::orphan_offloaded_tasks(generic_scheduler&
s) {
368 ++my_abandonment_epoch;
369 __TBB_ASSERT(
s.my_offloaded_task_list_tail_link && !*
s.my_offloaded_task_list_tail_link, NULL );
372 orphans = const_cast<task*>(my_orphaned_tasks);
373 *
s.my_offloaded_task_list_tail_link = orphans;
374 }
while (
as_atomic(my_orphaned_tasks).compare_and_swap(
s.my_offloaded_tasks, orphans) != orphans );
375 s.my_offloaded_tasks = NULL;
377 s.my_offloaded_task_list_tail_link = NULL;
397 advertise_new_work<work_enqueued>();
398 #if __TBB_TASK_PRIORITY 403 if ( p < my_bottom_priority || p > my_top_priority )
429 #if __TBB_TASK_PRIORITY 431 intptr_t top_priority = my_top_priority;
435 for( k=0; k<n; ++k ) {
446 bool work_absent = k == n;
447 #if __TBB_PREVIEW_CRITICAL_TASKS 448 bool no_critical_tasks = my_critical_task_stream.empty(0);
449 work_absent &= no_critical_tasks;
451 #if __TBB_TASK_PRIORITY 454 bool tasks_present = !work_absent || my_orphaned_tasks;
455 bool dequeuing_possible =
false;
460 uintptr_t abandonment_epoch = my_abandonment_epoch;
466 the_context_state_propagation_mutex.lock();
467 work_absent = !may_have_tasks(
my_slots[0].my_scheduler, tasks_present, dequeuing_possible );
468 the_context_state_propagation_mutex.unlock();
481 for( k = 1; work_absent && k < n; ++k ) {
484 work_absent = !may_have_tasks(
my_slots[k].my_scheduler, tasks_present, dequeuing_possible );
487 work_absent = work_absent
489 && abandonment_epoch == my_abandonment_epoch;
494 #if __TBB_TASK_PRIORITY 496 work_absent = work_absent && (!dequeuing_possible || no_fifo_tasks)
497 && top_priority == my_top_priority && reload_epoch == my_reload_epoch;
500 work_absent = work_absent && no_fifo_tasks;
503 #if __TBB_TASK_PRIORITY 504 if ( top_priority > my_bottom_priority ) {
505 if (
my_market->lower_arena_priority(*
this, top_priority - 1, reload_epoch)
508 atomic_update( my_skipped_fifo_priority, top_priority, std::less<intptr_t>());
511 else if ( !tasks_present && !my_orphaned_tasks && no_fifo_tasks ) {
524 #if __TBB_TASK_PRIORITY 541 #if __TBB_COUNT_TASK_NODES 542 intptr_t arena::workers_task_node_count() {
547 result +=
s->my_task_node_count;
555 #if __TBB_RECYCLE_TO_ENQUEUE 566 __TBB_ASSERT( ref_count!=0,
"attempt to enqueue task whose parent has a ref_count==0 (forgot to set_ref_count?)" );
567 __TBB_ASSERT( ref_count>0,
"attempt to enqueue task whose parent has a ref_count<0" );
572 #if __TBB_PREVIEW_CRITICAL_TASKS 578 if(
s &&
s->my_arena_slot ) {
581 #if __TBB_TASK_ISOLATION 584 unsigned& lane =
s->my_arena_slot->hint_for_critical;
591 advertise_new_work<work_spawned>();
597 #if __TBB_TASK_PRIORITY 598 intptr_t
p = prio ? normalize_priority(
priority_t(prio)) : normalized_normal_priority;
599 assert_priority_valid(
p);
600 #if __TBB_PREVIEW_CRITICAL_TASKS && __TBB_CPF_BUILD 605 if (
p != my_top_priority )
608 __TBB_ASSERT_EX(prio == 0,
"the library is not configured to respect the task priority");
609 #if __TBB_PREVIEW_CRITICAL_TASKS && __TBB_CPF_BUILD 615 advertise_new_work<work_enqueued>();
616 #if __TBB_TASK_PRIORITY 617 if (
p != my_top_priority )
632 #if __TBB_PREVIEW_RESUMABLE_TASKS 637 s->nested_arena_entry(a, slot_index);
641 #if __TBB_TASK_GROUP_CONTEXT 650 #if __TBB_TASK_PRIORITY 667 #if __TBB_PREVIEW_CRITICAL_TASKS 670 #if __TBB_TASK_GROUP_CONTEXT 683 #if __TBB_TASK_PRIORITY 684 if ( my_offloaded_tasks )
685 my_arena->orphan_offloaded_tasks( *
this );
686 my_offloaded_tasks = NULL;
696 #if __TBB_ARENA_OBSERVER 697 my_last_local_observer = 0;
698 my_arena->my_observers.notify_entry_observers( my_last_local_observer,
false );
700 #if __TBB_PREVIEW_RESUMABLE_TASKS 706 #if __TBB_ARENA_OBSERVER 707 my_arena->my_observers.notify_exit_observers( my_last_local_observer,
false );
709 #if __TBB_TASK_PRIORITY 710 if ( my_offloaded_tasks )
711 my_arena->orphan_offloaded_tasks( *
this );
728 #if __TBB_PREVIEW_RESUMABLE_TASKS 729 class resume_task :
public task {
736 if (
s->prepare_resume(my_target)) {
737 s->resume(my_target);
741 prefix().state = task::to_resume;
749 generic_scheduler* co_sched = curr.my_arena->my_co_cache.pop();
756 co_sched->my_arena = curr.my_arena;
759 co_sched->my_dummy_task->prefix().context = co_sched->my_arena->my_default_ctx;
766 void internal_suspend(
void* suspend_callback,
void* user_callback) {
768 __TBB_ASSERT(
s.my_arena_slot->my_scheduler_is_recalled != NULL, NULL);
769 bool is_recalled = *
s.my_arena_slot->my_scheduler_is_recalled;
770 generic_scheduler& target = is_recalled ? *
s.my_arena_slot->my_scheduler :
create_coroutine(
s);
772 generic_scheduler::callback_t callback = {
773 (generic_scheduler::suspend_callback_t)suspend_callback, user_callback, &
s };
774 target.set_post_resume_action(generic_scheduler::PRA_CALLBACK, &callback);
778 void internal_resume(task::suspend_point tag) {
779 generic_scheduler&
s = *static_cast<generic_scheduler*>(tag);
780 task* t =
new(&
s.allocate_task(
sizeof(resume_task),
__TBB_CONTEXT_ARG(NULL,
s.my_dummy_task->context()))) resume_task(
s);
786 arena& a = *
s.my_arena;
797 task::suspend_point internal_current_suspend_point() {
809 namespace interface7 {
815 #if __TBB_NUMA_SUPPORT 825 #if __TBB_TASK_GROUP_CONTEXT 826 new_arena->my_default_ctx =
new (
NFS_Allocate(1,
sizeof(task_group_context), NULL) )
829 new_arena->my_default_ctx->capture_fp_settings();
836 m.release(
true,
false );
838 #if __TBB_TASK_GROUP_CONTEXT 841 #if __TBB_TASK_GROUP_CONTEXT || __TBB_NUMA_SUPPORT 843 #if __TBB_TASK_GROUP_CONTEXT 847 #if __TBB_NUMA_SUPPORT 848 my_arena->my_numa_binding_observer = tbb::internal::construct_binding_observer(
860 #if __TBB_NUMA_SUPPORT 861 if(
my_arena->my_numa_binding_observer != NULL ) {
862 tbb::internal::destroy_binding_observer(
my_arena->my_numa_binding_observer);
863 my_arena->my_numa_binding_observer = NULL;
869 #if __TBB_TASK_GROUP_CONTEXT 878 if(
s &&
s->my_arena ) {
884 #if __TBB_TASK_GROUP_CONTEXT 900 #if __TBB_TASK_GROUP_CONTEXT 903 "The task will not be executed because default task_group_context of task_arena is cancelled. Has previously enqueued task thrown an exception?");
908 class delegated_task :
public task {
909 internal::delegate_base & my_delegate;
910 concurrent_monitor & my_monitor;
913 generic_scheduler&
s = *(generic_scheduler*)prefix().owner;
914 __TBB_ASSERT(
s.outermost_level(),
"expected to be enqueued and received on the outermost level");
915 struct outermost_context : internal::no_copy {
917 generic_scheduler &
s;
919 task_group_context * orig_ctx;
920 scheduler_properties orig_props;
921 outermost_context(delegated_task *_t, generic_scheduler &_s)
922 : t(_t),
s(_s), orig_dummy(
s.my_dummy_task), orig_props(
s.my_properties) {
924 #if __TBB_TASK_GROUP_CONTEXT 925 orig_ctx = t->prefix().context;
926 t->prefix().context =
s.my_arena->my_default_ctx;
932 ~outermost_context() {
933 #if __TBB_TASK_GROUP_CONTEXT 935 t->prefix().context = orig_ctx;
938 s.my_properties = orig_props;
939 s.my_dummy_task = orig_dummy;
948 task_prefix& prefix = my_root->prefix();
949 #if __TBB_PREVIEW_RESUMABLE_TASKS 950 reference_count old_ref_count = __TBB_FetchAndStoreW(&prefix.ref_count, 1);
952 if (old_ref_count == internal::abandon_flag + 2) {
955 tbb::task::resume(prefix.abandoned_scheduler);
960 my_monitor.notify(*
this);
963 delegated_task( internal::delegate_base &
d, concurrent_monitor &
s,
task * t )
964 : my_delegate(
d), my_monitor(
s), my_root(t) {}
966 bool operator()(uintptr_t ctx)
const {
return (
void*)ctx == (
void*)&my_delegate; }
974 bool same_arena =
s->my_arena ==
my_arena;
975 size_t index1 =
s->my_arena_index;
980 #if __TBB_USE_OPTIONAL_RTTI 988 internal::delegated_function< graph_funct, void >* deleg_funct =
989 dynamic_cast< internal::delegated_function< graph_funct, void>*
>(&
d);
994 (internal::forward< graph_funct >(deleg_funct->my_func)), 0);
998 concurrent_monitor::thread_context waiter;
999 #if __TBB_TASK_GROUP_CONTEXT 1001 #if __TBB_FP_CONTEXT 1006 root.prefix().ref_count = 2;
1021 s->local_wait_for_all(root, NULL);
1022 #if TBB_USE_EXCEPTIONS 1035 #if TBB_USE_EXCEPTIONS 1038 TbbRethrowException(pe);
1041 #if __TBB_USE_OPTIONAL_RTTI 1047 context_guard_helper<
false> context_guard;
1049 #if TBB_USE_EXCEPTIONS 1055 #if TBB_USE_EXCEPTIONS 1058 context_guard.restore_default();
1063 exception_container.register_pending_exception();
1065 TbbRethrowException(exception_container.my_exception);
1073 class wait_task :
public task {
1074 binary_semaphore & my_signal;
1078 __TBB_ASSERT(
s->outermost_level(),
"The enqueued task can be processed only on outermost level" );
1079 if (
s->is_worker() ) {
1082 s->my_innermost_running_task =
s->my_dummy_task;
1083 s->local_wait_for_all( *
s->my_dummy_task, NULL );
1084 s->my_innermost_running_task =
this;
1085 }
else s->my_arena->is_out_of_work();
1090 wait_task ( binary_semaphore & sema ) : my_signal(sema) {}
1097 __TBB_ASSERT(
s->my_arena !=
my_arena ||
s->my_arena_index == 0,
"task_arena::wait_until_empty() is not supported within a worker context" );
1101 if( !
s->my_arena_index )
1103 s->wait_until_empty();
1109 s->wait_until_empty();
1111 binary_semaphore waiter;
1124 return s?
int(
s->my_arena_index) : -1;
1127 #if __TBB_TASK_ISOLATION 1132 isolation_guard(
isolation_tag &isolation ) : guarded( isolation ), previous_value( isolation ) {}
1133 ~isolation_guard() {
1134 guarded = previous_value;
1141 __TBB_ASSERT(
s,
"this_task_arena::isolate() needs an initialized scheduler" );
1144 isolation_tag& current_isolation =
s->my_innermost_running_task->prefix().isolation;
1146 isolation_guard guard( current_isolation );
1147 current_isolation = isolation? isolation : reinterpret_cast<isolation_tag>(&
d);
1160 __TBB_ASSERT( !ta || ta->my_max_concurrency==1, NULL );
1161 return a->my_num_reserved_slots + a->my_max_num_workers;
uintptr_t my_version_and_traits
Version for run-time checks and behavioral traits of the context.
bool is_worker() const
True if running on a worker thread, false otherwise.
static const unsigned ref_external
Reference increment values for externals and workers.
void const char const char int ITT_FORMAT __itt_group_sync x void const char ITT_FORMAT __itt_group_sync s void ITT_FORMAT __itt_group_sync p void ITT_FORMAT p void ITT_FORMAT p no args __itt_suppress_mode_t unsigned int void size_t ITT_FORMAT d void ITT_FORMAT p void ITT_FORMAT p __itt_model_site __itt_model_site_instance ITT_FORMAT p __itt_model_task __itt_model_task_instance ITT_FORMAT p void ITT_FORMAT p void ITT_FORMAT p void size_t ITT_FORMAT d void ITT_FORMAT p const wchar_t ITT_FORMAT s const char ITT_FORMAT s const char ITT_FORMAT s const char ITT_FORMAT s no args void ITT_FORMAT p size_t ITT_FORMAT d no args const wchar_t const wchar_t ITT_FORMAT s __itt_heap_function void size_t int ITT_FORMAT d __itt_heap_function void ITT_FORMAT p __itt_heap_function void void size_t int ITT_FORMAT d no args no args unsigned int ITT_FORMAT u const __itt_domain __itt_id ITT_FORMAT lu const __itt_domain __itt_id __itt_id __itt_string_handle ITT_FORMAT p const __itt_domain __itt_id ITT_FORMAT p const __itt_domain __itt_id __itt_timestamp __itt_timestamp ITT_FORMAT lu const __itt_domain __itt_id __itt_id __itt_string_handle ITT_FORMAT p const __itt_domain ITT_FORMAT p const __itt_domain __itt_string_handle unsigned long long ITT_FORMAT lu const __itt_domain __itt_id __itt_string_handle __itt_metadata_type size_t void ITT_FORMAT p const __itt_domain __itt_id __itt_string_handle const wchar_t size_t ITT_FORMAT lu const __itt_domain __itt_id __itt_relation __itt_id tail
static const pool_state_t SNAPSHOT_EMPTY
No tasks to steal since last snapshot was taken.
tbb::atomic< uintptr_t > my_pool_state
Current task pool state and estimate of available tasks amount.
void __TBB_EXPORTED_METHOD internal_enqueue(task &, intptr_t) const
T1 atomic_update(tbb::atomic< T1 > &dst, T2 newValue, Pred compare)
Atomically replaces value of dst with newValue if they satisfy condition of compare predicate.
task_group_context * my_context
default context of the arena
task_stream< num_priority_levels > my_task_stream
Task pool for the tasks scheduled via task::enqueue() method.
bool is_recall_requested() const
Check if the recall is requested by the market.
Used to form groups of tasks.
A fast random number generator.
state_type state() const
Current execution state.
void enqueue_task(task &, intptr_t, FastRandom &)
enqueue a task into starvation-resistance queue
static market & global_market(bool is_public, unsigned max_num_workers=0, size_t stack_size=0)
Factory method creating new market object.
task * parent() const
task on whose behalf this task is working, or NULL if this is a root.
task_group_context * context
Shared context that is used to communicate asynchronous state changes.
static int __TBB_EXPORTED_FUNC internal_current_slot()
static bool occupy_slot(generic_scheduler *&slot, generic_scheduler &s)
uintptr_t my_aba_epoch
ABA prevention marker.
bool release(bool is_public, bool blocking_terminate)
Decrements market's refcount and destroys it in the end.
void nested_arena_entry(arena *, size_t)
task is in ready pool, or is going to be put there, or was just taken off.
unsigned my_num_slots
The number of slots in the arena.
bool type
Indicates that a scheduler acts as a master or a worker.
cpu_ctl_env my_cpu_ctl_env
FPU control settings of arena's master thread captured at the moment of arena instantiation.
void *__TBB_EXPORTED_FUNC NFS_Allocate(size_t n_element, size_t element_size, void *hint)
Allocate memory on cache/sector line boundary.
T __TBB_load_relaxed(const volatile T &location)
void __TBB_store_with_release(volatile T &location, V value)
atomic< T > & as_atomic(T &t)
void const char const char int ITT_FORMAT __itt_group_sync x void const char ITT_FORMAT __itt_group_sync s void ITT_FORMAT __itt_group_sync p void ITT_FORMAT p void ITT_FORMAT p no args __itt_suppress_mode_t unsigned int void size_t ITT_FORMAT d void ITT_FORMAT p void ITT_FORMAT p __itt_model_site __itt_model_site_instance ITT_FORMAT p __itt_model_task __itt_model_task_instance ITT_FORMAT p void ITT_FORMAT p void ITT_FORMAT p void size_t ITT_FORMAT d void ITT_FORMAT p const wchar_t ITT_FORMAT s const char ITT_FORMAT s const char ITT_FORMAT s const char ITT_FORMAT s no args void ITT_FORMAT p size_t ITT_FORMAT d no args const wchar_t const wchar_t ITT_FORMAT s __itt_heap_function void size_t int ITT_FORMAT d __itt_heap_function void ITT_FORMAT p __itt_heap_function void void size_t int ITT_FORMAT d no args no args unsigned int ITT_FORMAT u const __itt_domain __itt_id ITT_FORMAT lu const __itt_domain __itt_id __itt_id __itt_string_handle ITT_FORMAT p const __itt_domain __itt_id ITT_FORMAT p const __itt_domain __itt_id __itt_timestamp __itt_timestamp ITT_FORMAT lu const __itt_domain __itt_id __itt_id __itt_string_handle ITT_FORMAT p const __itt_domain ITT_FORMAT p const __itt_domain __itt_string_handle unsigned long long ITT_FORMAT lu const __itt_domain __itt_id __itt_string_handle __itt_metadata_type size_t void ITT_FORMAT p const __itt_domain __itt_id __itt_string_handle const wchar_t size_t ITT_FORMAT lu const __itt_domain __itt_id __itt_relation __itt_id ITT_FORMAT p const wchar_t int ITT_FORMAT __itt_group_mark d int
void restore_priority_if_need()
If enqueued tasks found, restore arena priority and task presence status.
bool is_out_of_work()
Check if there is job anywhere in arena.
unsigned my_num_workers_allotted
The number of workers that have been marked out by the resource manager to service the arena.
nested_arena_context(generic_scheduler *s, arena *a, size_t slot_index, bool type, bool same)
static const pool_state_t SNAPSHOT_FULL
At least one task has been offered for stealing since the last snapshot started.
void const char const char int ITT_FORMAT __itt_group_sync x void const char ITT_FORMAT __itt_group_sync s void ITT_FORMAT __itt_group_sync p void ITT_FORMAT p void ITT_FORMAT p no args __itt_suppress_mode_t unsigned int void size_t ITT_FORMAT d void ITT_FORMAT p void ITT_FORMAT p __itt_model_site __itt_model_site_instance ITT_FORMAT p __itt_model_task __itt_model_task_instance ITT_FORMAT p void ITT_FORMAT p void ITT_FORMAT p void size_t ITT_FORMAT d void ITT_FORMAT p const wchar_t ITT_FORMAT s const char ITT_FORMAT s const char ITT_FORMAT s const char ITT_FORMAT s no args void ITT_FORMAT p size_t ITT_FORMAT d no args const wchar_t const wchar_t ITT_FORMAT s __itt_heap_function void size_t int ITT_FORMAT d __itt_heap_function void ITT_FORMAT p __itt_heap_function void void size_t int ITT_FORMAT d no args no args unsigned int ITT_FORMAT u const __itt_domain __itt_id ITT_FORMAT lu const __itt_domain __itt_id __itt_id parent
void const char const char int ITT_FORMAT __itt_group_sync x void const char ITT_FORMAT __itt_group_sync s void ITT_FORMAT __itt_group_sync p void ITT_FORMAT p void ITT_FORMAT p no args __itt_suppress_mode_t unsigned int void size_t ITT_FORMAT d void ITT_FORMAT p void ITT_FORMAT p __itt_model_site __itt_model_site_instance ITT_FORMAT p __itt_model_task __itt_model_task_instance ITT_FORMAT p void ITT_FORMAT p void ITT_FORMAT p void size_t ITT_FORMAT d void ITT_FORMAT p const wchar_t ITT_FORMAT s const char ITT_FORMAT s const char ITT_FORMAT s const char ITT_FORMAT s no args void ITT_FORMAT p size_t ITT_FORMAT d no args const wchar_t const wchar_t ITT_FORMAT s __itt_heap_function void size_t int ITT_FORMAT d __itt_heap_function void ITT_FORMAT p __itt_heap_function void void size_t int ITT_FORMAT d no args no args unsigned int ITT_FORMAT u const __itt_domain __itt_id ITT_FORMAT lu const __itt_domain __itt_id __itt_id __itt_string_handle ITT_FORMAT p const __itt_domain __itt_id ITT_FORMAT p const __itt_domain __itt_id __itt_timestamp __itt_timestamp ITT_FORMAT lu const __itt_domain __itt_id __itt_id __itt_string_handle ITT_FORMAT p const __itt_domain ITT_FORMAT p const __itt_domain __itt_string_handle unsigned long long ITT_FORMAT lu const __itt_domain __itt_id __itt_string_handle __itt_metadata_type type
void construct()
Construct *this as a mailbox from zeroed memory.
static generic_scheduler * local_scheduler_weak()
bool commit_wait(thread_context &thr)
Commit wait if event count has not changed; otherwise, cancel wait.
bool is_idle_state(bool value) const
Indicate whether thread that reads this mailbox is idle.
unsigned my_max_num_workers
The number of workers requested by the master thread owning the arena.
void const char const char int ITT_FORMAT __itt_group_sync x void const char ITT_FORMAT __itt_group_sync s void ITT_FORMAT __itt_group_sync p void ITT_FORMAT p void ITT_FORMAT p no args __itt_suppress_mode_t unsigned int void size_t ITT_FORMAT d void ITT_FORMAT p void ITT_FORMAT p __itt_model_site __itt_model_site_instance ITT_FORMAT p __itt_model_task __itt_model_task_instance ITT_FORMAT p void ITT_FORMAT p void ITT_FORMAT p void size_t ITT_FORMAT d void ITT_FORMAT p const wchar_t ITT_FORMAT s const char ITT_FORMAT s const char ITT_FORMAT s const char ITT_FORMAT s no args void ITT_FORMAT p size_t ITT_FORMAT d no args const wchar_t const wchar_t ITT_FORMAT s __itt_heap_function void size_t int ITT_FORMAT d __itt_heap_function void ITT_FORMAT p __itt_heap_function void void size_t int ITT_FORMAT d no args no args unsigned int ITT_FORMAT u const __itt_domain __itt_id ITT_FORMAT lu const __itt_domain __itt_id __itt_id __itt_string_handle ITT_FORMAT p const __itt_domain __itt_id ITT_FORMAT p const __itt_domain __itt_id __itt_timestamp __itt_timestamp ITT_FORMAT lu const __itt_domain __itt_id __itt_id __itt_string_handle ITT_FORMAT p const __itt_domain ITT_FORMAT p const __itt_domain __itt_string_handle unsigned long long ITT_FORMAT lu const __itt_domain __itt_id __itt_string_handle __itt_metadata_type size_t void ITT_FORMAT p const __itt_domain __itt_id __itt_string_handle const wchar_t size_t ITT_FORMAT lu const __itt_domain __itt_id __itt_relation __itt_id ITT_FORMAT p const wchar_t int ITT_FORMAT __itt_group_mark d __itt_event ITT_FORMAT __itt_group_mark d void const wchar_t const wchar_t int ITT_FORMAT __itt_group_sync __itt_group_fsync x void const wchar_t int const wchar_t int int ITT_FORMAT __itt_group_sync __itt_group_fsync x void ITT_FORMAT __itt_group_sync __itt_group_fsync p void ITT_FORMAT __itt_group_sync __itt_group_fsync p void size_t ITT_FORMAT lu no args __itt_obj_prop_t __itt_obj_state_t ITT_FORMAT d const char ITT_FORMAT s __itt_frame ITT_FORMAT p const char const char ITT_FORMAT s __itt_counter ITT_FORMAT p __itt_counter unsigned long long ITT_FORMAT lu const wchar_t ITT_FORMAT S __itt_mark_type const wchar_t ITT_FORMAT S __itt_mark_type const char ITT_FORMAT s __itt_mark_type ITT_FORMAT d __itt_caller ITT_FORMAT p __itt_caller ITT_FORMAT p no args const __itt_domain __itt_clock_domain unsigned long long __itt_id ITT_FORMAT lu const __itt_domain __itt_clock_domain unsigned long long __itt_id __itt_id void ITT_FORMAT p const __itt_domain __itt_id __itt_id __itt_string_handle ITT_FORMAT p const __itt_domain __itt_id ITT_FORMAT lu const __itt_domain __itt_clock_domain unsigned long long __itt_id __itt_string_handle __itt_scope scope
void attach_mailbox(affinity_id id)
scheduler_properties my_properties
void process(generic_scheduler &)
Registers the worker with the arena and enters TBB scheduler dispatch loop.
void mimic_outermost_level(arena *a, bool type)
#define __TBB_CONTEXT_ARG(arg1, context)
void initialize(unsigned n_lanes)
scheduler_state my_orig_state
uintptr_t my_arenas_aba_epoch
ABA prevention marker to assign to newly created arenas.
atomic< unsigned > my_references
Reference counter for the arena.
void __TBB_EXPORTED_METHOD internal_initialize()
bool has_enqueued_tasks()
Check for the presence of enqueued tasks at all priority levels.
void prepare_wait(thread_context &thr, uintptr_t ctx=0)
prepare wait by inserting 'thr' into the wait queue
size_t my_arena_index
Index of the arena slot the scheduler occupies now, or occupied last time.
generic_scheduler * my_scheduler
Scheduler of the thread attached to the slot.
arena_slot * my_arena_slot
Pointer to the slot in the arena we own at the moment.
void notify_one()
Notify one thread about the event.
void spin_wait_while_eq(const volatile T &location, U value)
Spin WHILE the value of the variable is equal to a given value.
static arena & allocate_arena(market &, unsigned num_slots, unsigned num_reserved_slots)
Allocate an instance of arena.
arena(market &, unsigned max_num_workers, unsigned num_reserved_slots)
Constructor.
static arena * create_arena(int num_slots, int num_reserved_slots, size_t stack_size)
Creates an arena object.
void adjust_demand(arena &, int delta)
Request that arena's need in workers should be adjusted.
static generic_scheduler * local_scheduler()
Obtain the thread-local instance of the TBB scheduler.
void make_critical(task &t)
static const int priority_critical
static bool is_set(generic_scheduler *s)
Used to check validity of the local scheduler TLS contents.
static const size_t out_of_arena
unsigned hint_for_pop
Hint provided for operations with the container of starvation-resistant tasks.
void const char const char int ITT_FORMAT __itt_group_sync x void const char ITT_FORMAT __itt_group_sync s void ITT_FORMAT __itt_group_sync p void ITT_FORMAT p void ITT_FORMAT p no args __itt_suppress_mode_t unsigned int void size_t ITT_FORMAT d
void __TBB_EXPORTED_METHOD internal_terminate()
T __TBB_load_with_acquire(const volatile T &location)
unsigned char state
A task::state_type, stored as a byte for compactness.
bool empty(int level)
Checks existence of a task.
market * my_market
The market I am in.
void free_arena()
Completes arena shutdown, destructs and deallocates it.
void const char const char int ITT_FORMAT __itt_group_sync x void const char ITT_FORMAT __itt_group_sync s void ITT_FORMAT __itt_group_sync p void ITT_FORMAT p sync_releasing
static int unsigned num_arena_slots(unsigned num_slots)
intptr_t isolation_tag
A tag for task isolation.
task_group_context * my_orig_ctx
void const char const char int ITT_FORMAT __itt_group_sync s
bool outermost
Indicates that a scheduler is on outermost level.
__TBB_atomic reference_count ref_count
Reference count used for synchronization.
virtual void local_wait_for_all(task &parent, task *child)=0
Set if ref_count might be changed by another thread. Used for debugging.
task * my_dummy_task
Fake root task created by slave threads.
void __TBB_EXPORTED_METHOD internal_wait() const
intptr_t reference_count
A reference count.
void const char const char int ITT_FORMAT __itt_group_sync x void const char ITT_FORMAT __itt_group_sync s void ITT_FORMAT __itt_group_sync p void ITT_FORMAT p void ITT_FORMAT p no args __itt_suppress_mode_t unsigned int void size_t ITT_FORMAT d void ITT_FORMAT p void ITT_FORMAT p __itt_model_site __itt_model_site_instance ITT_FORMAT p __itt_model_task * task
Base class for user-defined tasks.
void __TBB_EXPORTED_METHOD internal_execute(delegate_base &) const
#define __TBB_ASSERT_EX(predicate, comment)
"Extended" version is useful to suppress warnings if a variable is only used with an assert
Work stealing task scheduler.
size_t occupy_free_slot_in_range(generic_scheduler &s, size_t lower, size_t upper)
Tries to occupy a slot in the specified range.
void __TBB_EXPORTED_FUNC NFS_Free(void *)
Free memory allocated by NFS_Allocate.
#define __TBB_ISOLATION_ARG(arg1, isolation)
const size_t NFS_MaxLineSize
Compile-time constant that is upper bound on cache line/sector size.
Base class for types that should not be copied or assigned.
static generic_scheduler * create_worker(market &m, size_t index, bool geniune)
Initialize a scheduler for a worker thread.
void free_task_pool()
Deallocate task pool that was allocated by means of allocate_task_pool.
unsigned my_num_reserved_slots
The number of reserved slots (can be occupied only by masters).
intptr_t my_version_and_traits
Special settings.
void on_thread_leaving()
Notification that worker or master leaves its arena.
unsigned short affinity_id
An id as used for specifying affinity.
void create_coroutine(coroutine_type &c, size_t stack_size, void *arg)
static internal::allocate_root_proxy allocate_root()
Returns proxy for overloaded new that allocates a root task.
task object is freshly allocated or recycled.
static unsigned default_num_threads()
A functor that spawns a task.
int my_max_concurrency
Concurrency level for deferred initialization.
task * my_innermost_running_task
Innermost task whose task::execute() is running. A dummy task on the outermost level.
arena * my_arena
The arena that I own (if master) or am servicing at the moment (if worker)
market * my_market
The market that owns this arena.
unsigned char extra_state
Miscellaneous state that is not directly visible to users, stored as a byte for compactness.
intptr_t drain()
Destroys all remaining tasks in every lane. Returns the number of destroyed tasks.
Class representing where mail is put.
void __TBB_EXPORTED_FUNC isolate_within_arena(delegate_base &d, intptr_t isolation=0)
static generic_scheduler * local_scheduler_if_initialized()
void push(task *source, int level, FastRandom &random)
Push a task into a lane.
internal::task_prefix & prefix(internal::version_tag *=NULL) const
Get reference to corresponding task_prefix.
task is running, and will be destroyed after method execute() completes.
#define ITT_SYNC_CREATE(obj, type, name)
isolation_tag isolation
The tag used for task isolation.
static const int automatic
Typedef for number of threads that is automatic.
mail_outbox & mailbox(affinity_id id)
Get reference to mailbox corresponding to given affinity_id.
int my_num_workers_requested
The number of workers that are currently requested from the resource manager.
static void assume_scheduler(generic_scheduler *s)
Temporarily set TLS slot to the given scheduler.
#define __TBB_ASSERT(predicate, comment)
No-op version of __TBB_ASSERT.
size_t occupy_free_slot(generic_scheduler &s)
Tries to occupy a slot in the arena. On success, returns the slot index; if no slot is available,...
static int allocation_size(unsigned num_slots)
void __TBB_EXPORTED_METHOD internal_attach()
#define ITT_NOTIFY(name, obj)
internal::arena * my_arena
NULL if not currently initialized.
void attach_arena(arena *, size_t index, bool is_master)
static int __TBB_EXPORTED_FUNC internal_max_concurrency(const task_arena *)
void set_is_idle(bool value)
Indicate whether thread that reads this mailbox is idle.
static void one_time_init()
concurrent_monitor my_exit_monitors
Waiting object for master threads that cannot join the arena.
void const char const char int ITT_FORMAT __itt_group_sync p
atomic< unsigned > my_limit
The maximal number of currently busy slots.
size_t __TBB_EXPORTED_FUNC NFS_GetLineSize()
Cache/sector line size.
generic_scheduler & my_scheduler
const isolation_tag no_isolation
unsigned my_master_slots
Reserved master slots.
void const char const char int ITT_FORMAT __itt_group_sync x void const char ITT_FORMAT __itt_group_sync s void ITT_FORMAT __itt_group_sync p void ITT_FORMAT p void ITT_FORMAT p no args __itt_suppress_mode_t unsigned int void size_t ITT_FORMAT d void ITT_FORMAT p void ITT_FORMAT p __itt_model_site __itt_model_site_instance ITT_FORMAT p __itt_model_task __itt_model_task_instance ITT_FORMAT p void ITT_FORMAT p void ITT_FORMAT p void size_t ITT_FORMAT d void ITT_FORMAT p const wchar_t ITT_FORMAT s const char ITT_FORMAT s const char ITT_FORMAT s const char ITT_FORMAT s no args void ITT_FORMAT p size_t ITT_FORMAT d no args const wchar_t const wchar_t ITT_FORMAT s __itt_heap_function void size_t int ITT_FORMAT d __itt_heap_function void ITT_FORMAT p __itt_heap_function void void size_t int ITT_FORMAT d no args no args unsigned int ITT_FORMAT u const __itt_domain __itt_id ITT_FORMAT lu const __itt_domain __itt_id __itt_id __itt_string_handle ITT_FORMAT p const __itt_domain __itt_id ITT_FORMAT p const __itt_domain __itt_id __itt_timestamp __itt_timestamp ITT_FORMAT lu const __itt_domain __itt_id __itt_id __itt_string_handle ITT_FORMAT p const __itt_domain ITT_FORMAT p const __itt_domain __itt_string_handle unsigned long long ITT_FORMAT lu const __itt_domain __itt_id __itt_string_handle __itt_metadata_type size_t void ITT_FORMAT p const __itt_domain __itt_id __itt_string_handle const wchar_t size_t ITT_FORMAT lu const __itt_domain __itt_id head
static const intptr_t num_priority_levels
unsigned num_workers_active() const
The number of workers active in the arena.
intptr_t drain()
Drain the mailbox.
#define GATHER_STATISTIC(x)
internal::tbb_exception_ptr exception_container_type
void cancel_wait(thread_context &thr)
Cancel the wait. Removes the thread from the wait queue if not removed yet.
#define __TBB_CONTEXT_ARG1(context)
bool is_critical(task &t)