15 #include "kmp_affinity.h" 20 #include "kmp_stats.h" 22 #include "kmp_wait_release.h" 23 #include "kmp_wrapper_getpid.h" 25 #if !KMP_OS_FREEBSD && !KMP_OS_NETBSD 29 #include <sys/resource.h> 30 #include <sys/syscall.h> 32 #include <sys/times.h> 35 #if KMP_OS_LINUX && !KMP_OS_CNK 36 #include <sys/sysinfo.h> 51 #include <mach/mach.h> 52 #include <sys/sysctl.h> 54 #include <pthread_np.h> 61 #include "tsan_annotations.h" 63 struct kmp_sys_timer {
64 struct timespec start;
68 #define TS2NS(timespec) (((timespec).tv_sec * 1e9) + (timespec).tv_nsec) 70 static struct kmp_sys_timer __kmp_sys_timer_data;
72 #if KMP_HANDLE_SIGNALS 73 typedef void (*sig_func_t)(int);
74 STATIC_EFI2_WORKAROUND
struct sigaction __kmp_sighldrs[NSIG];
75 static sigset_t __kmp_sigset;
78 static int __kmp_init_runtime = FALSE;
80 static int __kmp_fork_count = 0;
82 static pthread_condattr_t __kmp_suspend_cond_attr;
83 static pthread_mutexattr_t __kmp_suspend_mutex_attr;
85 static kmp_cond_align_t __kmp_wait_cv;
86 static kmp_mutex_align_t __kmp_wait_mx;
88 kmp_uint64 __kmp_ticks_per_msec = 1000000;
91 static void __kmp_print_cond(
char *buffer, kmp_cond_align_t *cond) {
92 KMP_SNPRINTF(buffer, 128,
"(cond (lock (%ld, %d)), (descr (%p)))",
93 cond->c_cond.__c_lock.__status, cond->c_cond.__c_lock.__spinlock,
94 cond->c_cond.__c_waiting);
98 #if (KMP_OS_LINUX && KMP_AFFINITY_SUPPORTED) 102 void __kmp_affinity_bind_thread(
int which) {
103 KMP_ASSERT2(KMP_AFFINITY_CAPABLE(),
104 "Illegal set affinity operation when not capable");
106 kmp_affin_mask_t *mask;
107 KMP_CPU_ALLOC_ON_STACK(mask);
109 KMP_CPU_SET(which, mask);
110 __kmp_set_system_affinity(mask, TRUE);
111 KMP_CPU_FREE_FROM_STACK(mask);
117 void __kmp_affinity_determine_capable(
const char *env_var) {
120 #define KMP_CPU_SET_SIZE_LIMIT (1024 * 1024) 125 buf = (
unsigned char *)KMP_INTERNAL_MALLOC(KMP_CPU_SET_SIZE_LIMIT);
130 gCode = syscall(__NR_sched_getaffinity, 0, KMP_CPU_SET_SIZE_LIMIT, buf);
131 KA_TRACE(30, (
"__kmp_affinity_determine_capable: " 132 "initial getaffinity call returned %d errno = %d\n",
138 if (__kmp_affinity_verbose ||
139 (__kmp_affinity_warnings && (__kmp_affinity_type != affinity_none) &&
140 (__kmp_affinity_type != affinity_default) &&
141 (__kmp_affinity_type != affinity_disabled))) {
143 kmp_msg_t err_code = KMP_ERR(error);
144 __kmp_msg(kmp_ms_warning, KMP_MSG(GetAffSysCallNotSupported, env_var),
145 err_code, __kmp_msg_null);
146 if (__kmp_generate_warnings == kmp_warnings_off) {
147 __kmp_str_free(&err_code.str);
150 KMP_AFFINITY_DISABLE();
151 KMP_INTERNAL_FREE(buf);
159 sCode = syscall(__NR_sched_setaffinity, 0, gCode, NULL);
160 KA_TRACE(30, (
"__kmp_affinity_determine_capable: " 161 "setaffinity for mask size %d returned %d errno = %d\n",
162 gCode, sCode, errno));
164 if (errno == ENOSYS) {
165 if (__kmp_affinity_verbose ||
166 (__kmp_affinity_warnings &&
167 (__kmp_affinity_type != affinity_none) &&
168 (__kmp_affinity_type != affinity_default) &&
169 (__kmp_affinity_type != affinity_disabled))) {
171 kmp_msg_t err_code = KMP_ERR(error);
172 __kmp_msg(kmp_ms_warning, KMP_MSG(SetAffSysCallNotSupported, env_var),
173 err_code, __kmp_msg_null);
174 if (__kmp_generate_warnings == kmp_warnings_off) {
175 __kmp_str_free(&err_code.str);
178 KMP_AFFINITY_DISABLE();
179 KMP_INTERNAL_FREE(buf);
181 if (errno == EFAULT) {
182 KMP_AFFINITY_ENABLE(gCode);
183 KA_TRACE(10, (
"__kmp_affinity_determine_capable: " 184 "affinity supported (mask size %d)\n",
185 (
int)__kmp_affin_mask_size));
186 KMP_INTERNAL_FREE(buf);
194 KA_TRACE(30, (
"__kmp_affinity_determine_capable: " 195 "searching for proper set size\n"));
197 for (size = 1; size <= KMP_CPU_SET_SIZE_LIMIT; size *= 2) {
198 gCode = syscall(__NR_sched_getaffinity, 0, size, buf);
199 KA_TRACE(30, (
"__kmp_affinity_determine_capable: " 200 "getaffinity for mask size %d returned %d errno = %d\n",
201 size, gCode, errno));
204 if (errno == ENOSYS) {
206 KA_TRACE(30, (
"__kmp_affinity_determine_capable: " 207 "inconsistent OS call behavior: errno == ENOSYS for mask " 210 if (__kmp_affinity_verbose ||
211 (__kmp_affinity_warnings &&
212 (__kmp_affinity_type != affinity_none) &&
213 (__kmp_affinity_type != affinity_default) &&
214 (__kmp_affinity_type != affinity_disabled))) {
216 kmp_msg_t err_code = KMP_ERR(error);
217 __kmp_msg(kmp_ms_warning, KMP_MSG(GetAffSysCallNotSupported, env_var),
218 err_code, __kmp_msg_null);
219 if (__kmp_generate_warnings == kmp_warnings_off) {
220 __kmp_str_free(&err_code.str);
223 KMP_AFFINITY_DISABLE();
224 KMP_INTERNAL_FREE(buf);
230 sCode = syscall(__NR_sched_setaffinity, 0, gCode, NULL);
231 KA_TRACE(30, (
"__kmp_affinity_determine_capable: " 232 "setaffinity for mask size %d returned %d errno = %d\n",
233 gCode, sCode, errno));
235 if (errno == ENOSYS) {
237 KA_TRACE(30, (
"__kmp_affinity_determine_capable: " 238 "inconsistent OS call behavior: errno == ENOSYS for mask " 241 if (__kmp_affinity_verbose ||
242 (__kmp_affinity_warnings &&
243 (__kmp_affinity_type != affinity_none) &&
244 (__kmp_affinity_type != affinity_default) &&
245 (__kmp_affinity_type != affinity_disabled))) {
247 kmp_msg_t err_code = KMP_ERR(error);
248 __kmp_msg(kmp_ms_warning, KMP_MSG(SetAffSysCallNotSupported, env_var),
249 err_code, __kmp_msg_null);
250 if (__kmp_generate_warnings == kmp_warnings_off) {
251 __kmp_str_free(&err_code.str);
254 KMP_AFFINITY_DISABLE();
255 KMP_INTERNAL_FREE(buf);
258 if (errno == EFAULT) {
259 KMP_AFFINITY_ENABLE(gCode);
260 KA_TRACE(10, (
"__kmp_affinity_determine_capable: " 261 "affinity supported (mask size %d)\n",
262 (
int)__kmp_affin_mask_size));
263 KMP_INTERNAL_FREE(buf);
270 KMP_INTERNAL_FREE(buf);
275 KMP_AFFINITY_DISABLE();
276 KA_TRACE(10, (
"__kmp_affinity_determine_capable: " 277 "cannot determine mask size - affinity not supported\n"));
278 if (__kmp_affinity_verbose ||
279 (__kmp_affinity_warnings && (__kmp_affinity_type != affinity_none) &&
280 (__kmp_affinity_type != affinity_default) &&
281 (__kmp_affinity_type != affinity_disabled))) {
282 KMP_WARNING(AffCantGetMaskSize, env_var);
286 #endif // KMP_OS_LINUX && KMP_AFFINITY_SUPPORTED 290 int __kmp_futex_determine_capable() {
292 int rc = syscall(__NR_futex, &loc, FUTEX_WAKE, 1, NULL, NULL, 0);
293 int retval = (rc == 0) || (errno != ENOSYS);
296 (
"__kmp_futex_determine_capable: rc = %d errno = %d\n", rc, errno));
297 KA_TRACE(10, (
"__kmp_futex_determine_capable: futex syscall%s supported\n",
298 retval ?
"" :
" not"));
303 #endif // KMP_USE_FUTEX 305 #if (KMP_ARCH_X86 || KMP_ARCH_X86_64) && (!KMP_ASM_INTRINS) 309 kmp_int8 __kmp_test_then_or8(
volatile kmp_int8 *p, kmp_int8 d) {
310 kmp_int8 old_value, new_value;
312 old_value = TCR_1(*p);
313 new_value = old_value | d;
315 while (!KMP_COMPARE_AND_STORE_REL8(p, old_value, new_value)) {
317 old_value = TCR_1(*p);
318 new_value = old_value | d;
323 kmp_int8 __kmp_test_then_and8(
volatile kmp_int8 *p, kmp_int8 d) {
324 kmp_int8 old_value, new_value;
326 old_value = TCR_1(*p);
327 new_value = old_value & d;
329 while (!KMP_COMPARE_AND_STORE_REL8(p, old_value, new_value)) {
331 old_value = TCR_1(*p);
332 new_value = old_value & d;
337 kmp_uint32 __kmp_test_then_or32(
volatile kmp_uint32 *p, kmp_uint32 d) {
338 kmp_uint32 old_value, new_value;
340 old_value = TCR_4(*p);
341 new_value = old_value | d;
343 while (!KMP_COMPARE_AND_STORE_REL32(p, old_value, new_value)) {
345 old_value = TCR_4(*p);
346 new_value = old_value | d;
351 kmp_uint32 __kmp_test_then_and32(
volatile kmp_uint32 *p, kmp_uint32 d) {
352 kmp_uint32 old_value, new_value;
354 old_value = TCR_4(*p);
355 new_value = old_value & d;
357 while (!KMP_COMPARE_AND_STORE_REL32(p, old_value, new_value)) {
359 old_value = TCR_4(*p);
360 new_value = old_value & d;
366 kmp_int8 __kmp_test_then_add8(
volatile kmp_int8 *p, kmp_int8 d) {
367 kmp_int8 old_value, new_value;
369 old_value = TCR_1(*p);
370 new_value = old_value + d;
372 while (!KMP_COMPARE_AND_STORE_REL8(p, old_value, new_value)) {
374 old_value = TCR_1(*p);
375 new_value = old_value + d;
380 kmp_int64 __kmp_test_then_add64(
volatile kmp_int64 *p, kmp_int64 d) {
381 kmp_int64 old_value, new_value;
383 old_value = TCR_8(*p);
384 new_value = old_value + d;
386 while (!KMP_COMPARE_AND_STORE_REL64(p, old_value, new_value)) {
388 old_value = TCR_8(*p);
389 new_value = old_value + d;
395 kmp_uint64 __kmp_test_then_or64(
volatile kmp_uint64 *p, kmp_uint64 d) {
396 kmp_uint64 old_value, new_value;
398 old_value = TCR_8(*p);
399 new_value = old_value | d;
400 while (!KMP_COMPARE_AND_STORE_REL64(p, old_value, new_value)) {
402 old_value = TCR_8(*p);
403 new_value = old_value | d;
408 kmp_uint64 __kmp_test_then_and64(
volatile kmp_uint64 *p, kmp_uint64 d) {
409 kmp_uint64 old_value, new_value;
411 old_value = TCR_8(*p);
412 new_value = old_value & d;
413 while (!KMP_COMPARE_AND_STORE_REL64(p, old_value, new_value)) {
415 old_value = TCR_8(*p);
416 new_value = old_value & d;
423 void __kmp_terminate_thread(
int gtid) {
425 kmp_info_t *th = __kmp_threads[gtid];
430 #ifdef KMP_CANCEL_THREADS 431 KA_TRACE(10, (
"__kmp_terminate_thread: kill (%d)\n", gtid));
432 status = pthread_cancel(th->th.th_info.ds.ds_thread);
433 if (status != 0 && status != ESRCH) {
434 __kmp_fatal(KMP_MSG(CantTerminateWorkerThread), KMP_ERR(status),
445 static kmp_int32 __kmp_set_stack_info(
int gtid, kmp_info_t *th) {
447 #if KMP_OS_LINUX || KMP_OS_FREEBSD || KMP_OS_NETBSD || KMP_OS_HURD 456 if (!KMP_UBER_GTID(gtid)) {
459 status = pthread_attr_init(&attr);
460 KMP_CHECK_SYSFAIL(
"pthread_attr_init", status);
461 #if KMP_OS_FREEBSD || KMP_OS_NETBSD 462 status = pthread_attr_get_np(pthread_self(), &attr);
463 KMP_CHECK_SYSFAIL(
"pthread_attr_get_np", status);
465 status = pthread_getattr_np(pthread_self(), &attr);
466 KMP_CHECK_SYSFAIL(
"pthread_getattr_np", status);
468 status = pthread_attr_getstack(&attr, &addr, &size);
469 KMP_CHECK_SYSFAIL(
"pthread_attr_getstack", status);
471 (
"__kmp_set_stack_info: T#%d pthread_attr_getstack returned size:" 472 " %lu, low addr: %p\n",
474 status = pthread_attr_destroy(&attr);
475 KMP_CHECK_SYSFAIL(
"pthread_attr_destroy", status);
478 if (size != 0 && addr != 0) {
480 TCW_PTR(th->th.th_info.ds.ds_stackbase, (((
char *)addr) + size));
481 TCW_PTR(th->th.th_info.ds.ds_stacksize, size);
482 TCW_4(th->th.th_info.ds.ds_stackgrow, FALSE);
487 TCW_PTR(th->th.th_info.ds.ds_stacksize, 0);
488 TCW_PTR(th->th.th_info.ds.ds_stackbase, &stack_data);
489 TCW_4(th->th.th_info.ds.ds_stackgrow, TRUE);
493 static void *__kmp_launch_worker(
void *thr) {
494 int status, old_type, old_state;
495 #ifdef KMP_BLOCK_SIGNALS 496 sigset_t new_set, old_set;
499 #if KMP_OS_LINUX || KMP_OS_FREEBSD || KMP_OS_NETBSD || KMP_OS_HURD 500 void *
volatile padding = 0;
504 gtid = ((kmp_info_t *)thr)->th.th_info.ds.ds_gtid;
505 __kmp_gtid_set_specific(gtid);
506 #ifdef KMP_TDATA_GTID 509 #if KMP_STATS_ENABLED 511 __kmp_stats_thread_ptr = ((kmp_info_t *)thr)->th.th_stats;
512 __kmp_stats_thread_ptr->startLife();
513 KMP_SET_THREAD_STATE(IDLE);
518 __kmp_itt_thread_name(gtid);
521 #if KMP_AFFINITY_SUPPORTED 522 __kmp_affinity_set_init_mask(gtid, FALSE);
525 #ifdef KMP_CANCEL_THREADS 526 status = pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, &old_type);
527 KMP_CHECK_SYSFAIL(
"pthread_setcanceltype", status);
529 status = pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, &old_state);
530 KMP_CHECK_SYSFAIL(
"pthread_setcancelstate", status);
533 #if KMP_ARCH_X86 || KMP_ARCH_X86_64 535 __kmp_clear_x87_fpu_status_word();
536 __kmp_load_x87_fpu_control_word(&__kmp_init_x87_fpu_control_word);
537 __kmp_load_mxcsr(&__kmp_init_mxcsr);
540 #ifdef KMP_BLOCK_SIGNALS 541 status = sigfillset(&new_set);
542 KMP_CHECK_SYSFAIL_ERRNO(
"sigfillset", status);
543 status = pthread_sigmask(SIG_BLOCK, &new_set, &old_set);
544 KMP_CHECK_SYSFAIL(
"pthread_sigmask", status);
547 #if KMP_OS_LINUX || KMP_OS_FREEBSD || KMP_OS_NETBSD 548 if (__kmp_stkoffset > 0 && gtid > 0) {
549 padding = KMP_ALLOCA(gtid * __kmp_stkoffset);
554 __kmp_set_stack_info(gtid, (kmp_info_t *)thr);
556 __kmp_check_stack_overlap((kmp_info_t *)thr);
558 exit_val = __kmp_launch_thread((kmp_info_t *)thr);
560 #ifdef KMP_BLOCK_SIGNALS 561 status = pthread_sigmask(SIG_SETMASK, &old_set, NULL);
562 KMP_CHECK_SYSFAIL(
"pthread_sigmask", status);
571 static void *__kmp_launch_monitor(
void *thr) {
572 int status, old_type, old_state;
573 #ifdef KMP_BLOCK_SIGNALS 576 struct timespec interval;
578 int yield_cycles = 0;
582 KA_TRACE(10, (
"__kmp_launch_monitor: #1 launched\n"));
585 __kmp_gtid_set_specific(KMP_GTID_MONITOR);
586 #ifdef KMP_TDATA_GTID 587 __kmp_gtid = KMP_GTID_MONITOR;
594 __kmp_itt_thread_ignore();
597 __kmp_set_stack_info(((kmp_info_t *)thr)->th.th_info.ds.ds_gtid,
600 __kmp_check_stack_overlap((kmp_info_t *)thr);
602 #ifdef KMP_CANCEL_THREADS 603 status = pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, &old_type);
604 KMP_CHECK_SYSFAIL(
"pthread_setcanceltype", status);
606 status = pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, &old_state);
607 KMP_CHECK_SYSFAIL(
"pthread_setcancelstate", status);
610 #if KMP_REAL_TIME_FIX 615 int sched = sched_getscheduler(0);
616 if (sched == SCHED_FIFO || sched == SCHED_RR) {
619 struct sched_param param;
620 int max_priority = sched_get_priority_max(sched);
622 KMP_WARNING(RealTimeSchedNotSupported);
623 sched_getparam(0, ¶m);
624 if (param.sched_priority < max_priority) {
625 param.sched_priority += 1;
626 rc = sched_setscheduler(0, sched, ¶m);
629 kmp_msg_t err_code = KMP_ERR(error);
630 __kmp_msg(kmp_ms_warning, KMP_MSG(CantChangeMonitorPriority),
631 err_code, KMP_MSG(MonitorWillStarve), __kmp_msg_null);
632 if (__kmp_generate_warnings == kmp_warnings_off) {
633 __kmp_str_free(&err_code.str);
640 __kmp_msg(kmp_ms_warning, KMP_MSG(RunningAtMaxPriority),
641 KMP_MSG(MonitorWillStarve), KMP_HNT(RunningAtMaxPriority),
646 TCW_4(__kmp_global.g.g_time.dt.t_value, 0);
648 #endif // KMP_REAL_TIME_FIX 652 if (__kmp_monitor_wakeups == 1) {
654 interval.tv_nsec = 0;
657 interval.tv_nsec = (KMP_NSEC_PER_SEC / __kmp_monitor_wakeups);
660 KA_TRACE(10, (
"__kmp_launch_monitor: #2 monitor\n"));
662 if (__kmp_yield_cycle) {
663 __kmp_yielding_on = 0;
664 yield_count = __kmp_yield_off_count;
666 __kmp_yielding_on = 1;
669 while (!TCR_4(__kmp_global.g.g_done)) {
675 KA_TRACE(15, (
"__kmp_launch_monitor: update\n"));
677 status = gettimeofday(&tval, NULL);
678 KMP_CHECK_SYSFAIL_ERRNO(
"gettimeofday", status);
679 TIMEVAL_TO_TIMESPEC(&tval, &now);
681 now.tv_sec += interval.tv_sec;
682 now.tv_nsec += interval.tv_nsec;
684 if (now.tv_nsec >= KMP_NSEC_PER_SEC) {
686 now.tv_nsec -= KMP_NSEC_PER_SEC;
689 status = pthread_mutex_lock(&__kmp_wait_mx.m_mutex);
690 KMP_CHECK_SYSFAIL(
"pthread_mutex_lock", status);
692 if (!TCR_4(__kmp_global.g.g_done)) {
693 status = pthread_cond_timedwait(&__kmp_wait_cv.c_cond,
694 &__kmp_wait_mx.m_mutex, &now);
696 if (status != ETIMEDOUT && status != EINTR) {
697 KMP_SYSFAIL(
"pthread_cond_timedwait", status);
701 status = pthread_mutex_unlock(&__kmp_wait_mx.m_mutex);
702 KMP_CHECK_SYSFAIL(
"pthread_mutex_unlock", status);
704 if (__kmp_yield_cycle) {
706 if ((yield_cycles % yield_count) == 0) {
707 if (__kmp_yielding_on) {
708 __kmp_yielding_on = 0;
709 yield_count = __kmp_yield_off_count;
711 __kmp_yielding_on = 1;
712 yield_count = __kmp_yield_on_count;
717 __kmp_yielding_on = 1;
720 TCW_4(__kmp_global.g.g_time.dt.t_value,
721 TCR_4(__kmp_global.g.g_time.dt.t_value) + 1);
726 KA_TRACE(10, (
"__kmp_launch_monitor: #3 cleanup\n"));
728 #ifdef KMP_BLOCK_SIGNALS 729 status = sigfillset(&new_set);
730 KMP_CHECK_SYSFAIL_ERRNO(
"sigfillset", status);
731 status = pthread_sigmask(SIG_UNBLOCK, &new_set, NULL);
732 KMP_CHECK_SYSFAIL(
"pthread_sigmask", status);
735 KA_TRACE(10, (
"__kmp_launch_monitor: #4 finished\n"));
737 if (__kmp_global.g.g_abort != 0) {
743 KA_TRACE(10, (
"__kmp_launch_monitor: #5 terminate sig=%d\n",
744 __kmp_global.g.g_abort));
749 for (gtid = 1; gtid < __kmp_threads_capacity; ++gtid)
750 __kmp_terminate_thread(gtid);
754 KA_TRACE(10, (
"__kmp_launch_monitor: #6 raise sig=%d\n",
755 __kmp_global.g.g_abort));
757 if (__kmp_global.g.g_abort > 0)
758 raise(__kmp_global.g.g_abort);
761 KA_TRACE(10, (
"__kmp_launch_monitor: #7 exit\n"));
765 #endif // KMP_USE_MONITOR 767 void __kmp_create_worker(
int gtid, kmp_info_t *th,
size_t stack_size) {
769 pthread_attr_t thread_attr;
772 th->th.th_info.ds.ds_gtid = gtid;
774 #if KMP_STATS_ENABLED 776 __kmp_acquire_tas_lock(&__kmp_stats_lock, gtid);
782 if (!KMP_UBER_GTID(gtid)) {
783 th->th.th_stats = __kmp_stats_list->push_back(gtid);
787 th->th.th_stats = __kmp_stats_thread_ptr;
789 __kmp_release_tas_lock(&__kmp_stats_lock, gtid);
791 #endif // KMP_STATS_ENABLED 793 if (KMP_UBER_GTID(gtid)) {
794 KA_TRACE(10, (
"__kmp_create_worker: uber thread (%d)\n", gtid));
795 th->th.th_info.ds.ds_thread = pthread_self();
796 __kmp_set_stack_info(gtid, th);
797 __kmp_check_stack_overlap(th);
801 KA_TRACE(10, (
"__kmp_create_worker: try to create thread (%d)\n", gtid));
805 #ifdef KMP_THREAD_ATTR 806 status = pthread_attr_init(&thread_attr);
808 __kmp_fatal(KMP_MSG(CantInitThreadAttrs), KMP_ERR(status), __kmp_msg_null);
810 status = pthread_attr_setdetachstate(&thread_attr, PTHREAD_CREATE_JOINABLE);
812 __kmp_fatal(KMP_MSG(CantSetWorkerState), KMP_ERR(status), __kmp_msg_null);
822 stack_size += gtid * __kmp_stkoffset * 2;
824 KA_TRACE(10, (
"__kmp_create_worker: T#%d, default stacksize = %lu bytes, " 825 "__kmp_stksize = %lu bytes, final stacksize = %lu bytes\n",
826 gtid, KMP_DEFAULT_STKSIZE, __kmp_stksize, stack_size));
828 #ifdef _POSIX_THREAD_ATTR_STACKSIZE 829 status = pthread_attr_setstacksize(&thread_attr, stack_size);
830 #ifdef KMP_BACKUP_STKSIZE 832 if (!__kmp_env_stksize) {
833 stack_size = KMP_BACKUP_STKSIZE + gtid * __kmp_stkoffset;
834 __kmp_stksize = KMP_BACKUP_STKSIZE;
835 KA_TRACE(10, (
"__kmp_create_worker: T#%d, default stacksize = %lu bytes, " 836 "__kmp_stksize = %lu bytes, (backup) final stacksize = %lu " 838 gtid, KMP_DEFAULT_STKSIZE, __kmp_stksize, stack_size));
839 status = pthread_attr_setstacksize(&thread_attr, stack_size);
844 __kmp_fatal(KMP_MSG(CantSetWorkerStackSize, stack_size), KMP_ERR(status),
845 KMP_HNT(ChangeWorkerStackSize), __kmp_msg_null);
852 pthread_create(&handle, &thread_attr, __kmp_launch_worker, (
void *)th);
853 if (status != 0 || !handle) {
854 #ifdef _POSIX_THREAD_ATTR_STACKSIZE 855 if (status == EINVAL) {
856 __kmp_fatal(KMP_MSG(CantSetWorkerStackSize, stack_size), KMP_ERR(status),
857 KMP_HNT(IncreaseWorkerStackSize), __kmp_msg_null);
859 if (status == ENOMEM) {
860 __kmp_fatal(KMP_MSG(CantSetWorkerStackSize, stack_size), KMP_ERR(status),
861 KMP_HNT(DecreaseWorkerStackSize), __kmp_msg_null);
864 if (status == EAGAIN) {
865 __kmp_fatal(KMP_MSG(NoResourcesForWorkerThread), KMP_ERR(status),
866 KMP_HNT(Decrease_NUM_THREADS), __kmp_msg_null);
868 KMP_SYSFAIL(
"pthread_create", status);
871 th->th.th_info.ds.ds_thread = handle;
873 #ifdef KMP_THREAD_ATTR 874 status = pthread_attr_destroy(&thread_attr);
876 kmp_msg_t err_code = KMP_ERR(status);
877 __kmp_msg(kmp_ms_warning, KMP_MSG(CantDestroyThreadAttrs), err_code,
879 if (__kmp_generate_warnings == kmp_warnings_off) {
880 __kmp_str_free(&err_code.str);
887 KA_TRACE(10, (
"__kmp_create_worker: done creating thread (%d)\n", gtid));
892 void __kmp_create_monitor(kmp_info_t *th) {
894 pthread_attr_t thread_attr;
897 int auto_adj_size = FALSE;
899 if (__kmp_dflt_blocktime == KMP_MAX_BLOCKTIME) {
901 KA_TRACE(10, (
"__kmp_create_monitor: skipping monitor thread because of " 903 th->th.th_info.ds.ds_tid = 0;
904 th->th.th_info.ds.ds_gtid = 0;
907 KA_TRACE(10, (
"__kmp_create_monitor: try to create monitor\n"));
911 th->th.th_info.ds.ds_tid = KMP_GTID_MONITOR;
912 th->th.th_info.ds.ds_gtid = KMP_GTID_MONITOR;
913 #if KMP_REAL_TIME_FIX 914 TCW_4(__kmp_global.g.g_time.dt.t_value,
917 TCW_4(__kmp_global.g.g_time.dt.t_value, 0);
918 #endif // KMP_REAL_TIME_FIX 920 #ifdef KMP_THREAD_ATTR 921 if (__kmp_monitor_stksize == 0) {
922 __kmp_monitor_stksize = KMP_DEFAULT_MONITOR_STKSIZE;
923 auto_adj_size = TRUE;
925 status = pthread_attr_init(&thread_attr);
927 __kmp_fatal(KMP_MSG(CantInitThreadAttrs), KMP_ERR(status), __kmp_msg_null);
929 status = pthread_attr_setdetachstate(&thread_attr, PTHREAD_CREATE_JOINABLE);
931 __kmp_fatal(KMP_MSG(CantSetMonitorState), KMP_ERR(status), __kmp_msg_null);
934 #ifdef _POSIX_THREAD_ATTR_STACKSIZE 935 status = pthread_attr_getstacksize(&thread_attr, &size);
936 KMP_CHECK_SYSFAIL(
"pthread_attr_getstacksize", status);
938 size = __kmp_sys_min_stksize;
942 if (__kmp_monitor_stksize == 0) {
943 __kmp_monitor_stksize = KMP_DEFAULT_MONITOR_STKSIZE;
945 if (__kmp_monitor_stksize < __kmp_sys_min_stksize) {
946 __kmp_monitor_stksize = __kmp_sys_min_stksize;
949 KA_TRACE(10, (
"__kmp_create_monitor: default stacksize = %lu bytes," 950 "requested stacksize = %lu bytes\n",
951 size, __kmp_monitor_stksize));
956 #ifdef _POSIX_THREAD_ATTR_STACKSIZE 957 KA_TRACE(10, (
"__kmp_create_monitor: setting stacksize = %lu bytes,",
958 __kmp_monitor_stksize));
959 status = pthread_attr_setstacksize(&thread_attr, __kmp_monitor_stksize);
962 __kmp_monitor_stksize *= 2;
965 kmp_msg_t err_code = KMP_ERR(status);
966 __kmp_msg(kmp_ms_warning,
967 KMP_MSG(CantSetMonitorStackSize, (
long int)__kmp_monitor_stksize),
968 err_code, KMP_HNT(ChangeMonitorStackSize), __kmp_msg_null);
969 if (__kmp_generate_warnings == kmp_warnings_off) {
970 __kmp_str_free(&err_code.str);
976 pthread_create(&handle, &thread_attr, __kmp_launch_monitor, (
void *)th);
979 #ifdef _POSIX_THREAD_ATTR_STACKSIZE 980 if (status == EINVAL) {
981 if (auto_adj_size && (__kmp_monitor_stksize < (
size_t)0x40000000)) {
982 __kmp_monitor_stksize *= 2;
985 __kmp_fatal(KMP_MSG(CantSetMonitorStackSize, __kmp_monitor_stksize),
986 KMP_ERR(status), KMP_HNT(IncreaseMonitorStackSize),
989 if (status == ENOMEM) {
990 __kmp_fatal(KMP_MSG(CantSetMonitorStackSize, __kmp_monitor_stksize),
991 KMP_ERR(status), KMP_HNT(DecreaseMonitorStackSize),
995 if (status == EAGAIN) {
996 __kmp_fatal(KMP_MSG(NoResourcesForMonitorThread), KMP_ERR(status),
997 KMP_HNT(DecreaseNumberOfThreadsInUse), __kmp_msg_null);
999 KMP_SYSFAIL(
"pthread_create", status);
1002 th->th.th_info.ds.ds_thread = handle;
1004 #if KMP_REAL_TIME_FIX 1006 KMP_DEBUG_ASSERT(
sizeof(kmp_uint32) ==
1007 sizeof(__kmp_global.g.g_time.dt.t_value));
1008 __kmp_wait_yield_4((kmp_uint32
volatile *)&__kmp_global.g.g_time.dt.t_value,
1009 -1, &__kmp_neq_4, NULL);
1010 #endif // KMP_REAL_TIME_FIX 1012 #ifdef KMP_THREAD_ATTR 1013 status = pthread_attr_destroy(&thread_attr);
1015 kmp_msg_t err_code = KMP_ERR(status);
1016 __kmp_msg(kmp_ms_warning, KMP_MSG(CantDestroyThreadAttrs), err_code,
1018 if (__kmp_generate_warnings == kmp_warnings_off) {
1019 __kmp_str_free(&err_code.str);
1026 KA_TRACE(10, (
"__kmp_create_monitor: monitor created %#.8lx\n",
1027 th->th.th_info.ds.ds_thread));
1030 #endif // KMP_USE_MONITOR 1032 void __kmp_exit_thread(
int exit_status) {
1033 pthread_exit((
void *)(intptr_t)exit_status);
1037 void __kmp_resume_monitor();
1039 void __kmp_reap_monitor(kmp_info_t *th) {
1043 KA_TRACE(10, (
"__kmp_reap_monitor: try to reap monitor thread with handle" 1045 th->th.th_info.ds.ds_thread));
1050 KMP_DEBUG_ASSERT(th->th.th_info.ds.ds_tid == th->th.th_info.ds.ds_gtid);
1051 if (th->th.th_info.ds.ds_gtid != KMP_GTID_MONITOR) {
1052 KA_TRACE(10, (
"__kmp_reap_monitor: monitor did not start, returning\n"));
1062 status = pthread_kill(th->th.th_info.ds.ds_thread, 0);
1063 if (status != ESRCH) {
1064 __kmp_resume_monitor();
1066 KA_TRACE(10, (
"__kmp_reap_monitor: try to join with monitor\n"));
1067 status = pthread_join(th->th.th_info.ds.ds_thread, &exit_val);
1068 if (exit_val != th) {
1069 __kmp_fatal(KMP_MSG(ReapMonitorError), KMP_ERR(status), __kmp_msg_null);
1072 th->th.th_info.ds.ds_tid = KMP_GTID_DNE;
1073 th->th.th_info.ds.ds_gtid = KMP_GTID_DNE;
1075 KA_TRACE(10, (
"__kmp_reap_monitor: done reaping monitor thread with handle" 1077 th->th.th_info.ds.ds_thread));
1081 #endif // KMP_USE_MONITOR 1083 void __kmp_reap_worker(kmp_info_t *th) {
1090 10, (
"__kmp_reap_worker: try to reap T#%d\n", th->th.th_info.ds.ds_gtid));
1092 status = pthread_join(th->th.th_info.ds.ds_thread, &exit_val);
1096 __kmp_fatal(KMP_MSG(ReapWorkerError), KMP_ERR(status), __kmp_msg_null);
1098 if (exit_val != th) {
1099 KA_TRACE(10, (
"__kmp_reap_worker: worker T#%d did not reap properly, " 1101 th->th.th_info.ds.ds_gtid, exit_val));
1105 KA_TRACE(10, (
"__kmp_reap_worker: done reaping T#%d\n",
1106 th->th.th_info.ds.ds_gtid));
1111 #if KMP_HANDLE_SIGNALS 1113 static void __kmp_null_handler(
int signo) {
1117 static void __kmp_team_handler(
int signo) {
1118 if (__kmp_global.g.g_abort == 0) {
1121 __kmp_debug_printf(
"__kmp_team_handler: caught signal = %d\n", signo);
1136 if (__kmp_debug_buf) {
1137 __kmp_dump_debug_buffer();
1140 TCW_4(__kmp_global.g.g_abort, signo);
1142 TCW_4(__kmp_global.g.g_done, TRUE);
1147 __kmp_debug_printf(
"__kmp_team_handler: unknown signal type");
1154 static void __kmp_sigaction(
int signum,
const struct sigaction *act,
1155 struct sigaction *oldact) {
1156 int rc = sigaction(signum, act, oldact);
1157 KMP_CHECK_SYSFAIL_ERRNO(
"sigaction", rc);
1160 static void __kmp_install_one_handler(
int sig, sig_func_t handler_func,
1161 int parallel_init) {
1164 (
"__kmp_install_one_handler( %d, ..., %d )\n", sig, parallel_init));
1165 if (parallel_init) {
1166 struct sigaction new_action;
1167 struct sigaction old_action;
1168 new_action.sa_handler = handler_func;
1169 new_action.sa_flags = 0;
1170 sigfillset(&new_action.sa_mask);
1171 __kmp_sigaction(sig, &new_action, &old_action);
1172 if (old_action.sa_handler == __kmp_sighldrs[sig].sa_handler) {
1173 sigaddset(&__kmp_sigset, sig);
1176 __kmp_sigaction(sig, &old_action, NULL);
1180 __kmp_sigaction(sig, NULL, &__kmp_sighldrs[sig]);
1185 static void __kmp_remove_one_handler(
int sig) {
1186 KB_TRACE(60, (
"__kmp_remove_one_handler( %d )\n", sig));
1187 if (sigismember(&__kmp_sigset, sig)) {
1188 struct sigaction old;
1190 __kmp_sigaction(sig, &__kmp_sighldrs[sig], &old);
1191 if ((old.sa_handler != __kmp_team_handler) &&
1192 (old.sa_handler != __kmp_null_handler)) {
1194 KB_TRACE(10, (
"__kmp_remove_one_handler: oops, not our handler, " 1195 "restoring: sig=%d\n",
1197 __kmp_sigaction(sig, &old, NULL);
1199 sigdelset(&__kmp_sigset, sig);
1204 void __kmp_install_signals(
int parallel_init) {
1205 KB_TRACE(10, (
"__kmp_install_signals( %d )\n", parallel_init));
1206 if (__kmp_handle_signals || !parallel_init) {
1209 sigemptyset(&__kmp_sigset);
1210 __kmp_install_one_handler(SIGHUP, __kmp_team_handler, parallel_init);
1211 __kmp_install_one_handler(SIGINT, __kmp_team_handler, parallel_init);
1212 __kmp_install_one_handler(SIGQUIT, __kmp_team_handler, parallel_init);
1213 __kmp_install_one_handler(SIGILL, __kmp_team_handler, parallel_init);
1214 __kmp_install_one_handler(SIGABRT, __kmp_team_handler, parallel_init);
1215 __kmp_install_one_handler(SIGFPE, __kmp_team_handler, parallel_init);
1216 __kmp_install_one_handler(SIGBUS, __kmp_team_handler, parallel_init);
1217 __kmp_install_one_handler(SIGSEGV, __kmp_team_handler, parallel_init);
1219 __kmp_install_one_handler(SIGSYS, __kmp_team_handler, parallel_init);
1221 __kmp_install_one_handler(SIGTERM, __kmp_team_handler, parallel_init);
1223 __kmp_install_one_handler(SIGPIPE, __kmp_team_handler, parallel_init);
1228 void __kmp_remove_signals(
void) {
1230 KB_TRACE(10, (
"__kmp_remove_signals()\n"));
1231 for (sig = 1; sig < NSIG; ++sig) {
1232 __kmp_remove_one_handler(sig);
1236 #endif // KMP_HANDLE_SIGNALS 1238 void __kmp_enable(
int new_state) {
1239 #ifdef KMP_CANCEL_THREADS 1240 int status, old_state;
1241 status = pthread_setcancelstate(new_state, &old_state);
1242 KMP_CHECK_SYSFAIL(
"pthread_setcancelstate", status);
1243 KMP_DEBUG_ASSERT(old_state == PTHREAD_CANCEL_DISABLE);
1247 void __kmp_disable(
int *old_state) {
1248 #ifdef KMP_CANCEL_THREADS 1250 status = pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, old_state);
1251 KMP_CHECK_SYSFAIL(
"pthread_setcancelstate", status);
1255 static void __kmp_atfork_prepare(
void) {
1256 __kmp_acquire_bootstrap_lock(&__kmp_initz_lock);
1257 __kmp_acquire_bootstrap_lock(&__kmp_forkjoin_lock);
1260 static void __kmp_atfork_parent(
void) {
1261 __kmp_release_bootstrap_lock(&__kmp_initz_lock);
1262 __kmp_release_bootstrap_lock(&__kmp_forkjoin_lock);
1268 static void __kmp_atfork_child(
void) {
1269 __kmp_release_bootstrap_lock(&__kmp_forkjoin_lock);
1276 #if KMP_AFFINITY_SUPPORTED 1280 kmp_set_thread_affinity_mask_initial();
1285 __kmp_affinity_type = affinity_none;
1287 if (__kmp_nested_proc_bind.bind_types != NULL) {
1288 __kmp_nested_proc_bind.bind_types[0] = proc_bind_false;
1290 #endif // OMP_40_ENABLED 1291 #endif // KMP_AFFINITY_SUPPORTED 1293 __kmp_init_runtime = FALSE;
1295 __kmp_init_monitor = 0;
1297 __kmp_init_parallel = FALSE;
1298 __kmp_init_middle = FALSE;
1299 __kmp_init_serial = FALSE;
1300 TCW_4(__kmp_init_gtid, FALSE);
1301 __kmp_init_common = FALSE;
1303 TCW_4(__kmp_init_user_locks, FALSE);
1304 #if !KMP_USE_DYNAMIC_LOCK 1305 __kmp_user_lock_table.used = 1;
1306 __kmp_user_lock_table.allocated = 0;
1307 __kmp_user_lock_table.table = NULL;
1308 __kmp_lock_blocks = NULL;
1312 TCW_4(__kmp_nth, 0);
1314 __kmp_thread_pool = NULL;
1315 __kmp_thread_pool_insert_pt = NULL;
1316 __kmp_team_pool = NULL;
1320 KA_TRACE(10, (
"__kmp_atfork_child: checking cache address list %p\n",
1321 __kmp_threadpriv_cache_list));
1323 while (__kmp_threadpriv_cache_list != NULL) {
1325 if (*__kmp_threadpriv_cache_list->addr != NULL) {
1326 KC_TRACE(50, (
"__kmp_atfork_child: zeroing cache at address %p\n",
1327 &(*__kmp_threadpriv_cache_list->addr)));
1329 *__kmp_threadpriv_cache_list->addr = NULL;
1331 __kmp_threadpriv_cache_list = __kmp_threadpriv_cache_list->next;
1334 __kmp_init_runtime = FALSE;
1337 __kmp_init_bootstrap_lock(&__kmp_initz_lock);
1338 __kmp_init_bootstrap_lock(&__kmp_stdio_lock);
1339 __kmp_init_bootstrap_lock(&__kmp_console_lock);
1340 __kmp_init_bootstrap_lock(&__kmp_task_team_lock);
1357 void __kmp_register_atfork(
void) {
1358 if (__kmp_need_register_atfork) {
1359 int status = pthread_atfork(__kmp_atfork_prepare, __kmp_atfork_parent,
1360 __kmp_atfork_child);
1361 KMP_CHECK_SYSFAIL(
"pthread_atfork", status);
1362 __kmp_need_register_atfork = FALSE;
1366 void __kmp_suspend_initialize(
void) {
1368 status = pthread_mutexattr_init(&__kmp_suspend_mutex_attr);
1369 KMP_CHECK_SYSFAIL(
"pthread_mutexattr_init", status);
1370 status = pthread_condattr_init(&__kmp_suspend_cond_attr);
1371 KMP_CHECK_SYSFAIL(
"pthread_condattr_init", status);
1374 static void __kmp_suspend_initialize_thread(kmp_info_t *th) {
1375 ANNOTATE_HAPPENS_AFTER(&th->th.th_suspend_init_count);
1376 if (th->th.th_suspend_init_count <= __kmp_fork_count) {
1380 status = pthread_cond_init(&th->th.th_suspend_cv.c_cond,
1381 &__kmp_suspend_cond_attr);
1382 KMP_CHECK_SYSFAIL(
"pthread_cond_init", status);
1383 status = pthread_mutex_init(&th->th.th_suspend_mx.m_mutex,
1384 &__kmp_suspend_mutex_attr);
1385 KMP_CHECK_SYSFAIL(
"pthread_mutex_init", status);
1386 *(
volatile int *)&th->th.th_suspend_init_count = __kmp_fork_count + 1;
1387 ANNOTATE_HAPPENS_BEFORE(&th->th.th_suspend_init_count);
1391 void __kmp_suspend_uninitialize_thread(kmp_info_t *th) {
1392 if (th->th.th_suspend_init_count > __kmp_fork_count) {
1397 status = pthread_cond_destroy(&th->th.th_suspend_cv.c_cond);
1398 if (status != 0 && status != EBUSY) {
1399 KMP_SYSFAIL(
"pthread_cond_destroy", status);
1401 status = pthread_mutex_destroy(&th->th.th_suspend_mx.m_mutex);
1402 if (status != 0 && status != EBUSY) {
1403 KMP_SYSFAIL(
"pthread_mutex_destroy", status);
1405 --th->th.th_suspend_init_count;
1406 KMP_DEBUG_ASSERT(th->th.th_suspend_init_count == __kmp_fork_count);
1413 static inline void __kmp_suspend_template(
int th_gtid, C *flag) {
1414 KMP_TIME_DEVELOPER_PARTITIONED_BLOCK(USER_suspend);
1415 kmp_info_t *th = __kmp_threads[th_gtid];
1417 typename C::flag_t old_spin;
1419 KF_TRACE(30, (
"__kmp_suspend_template: T#%d enter for flag = %p\n", th_gtid,
1422 __kmp_suspend_initialize_thread(th);
1424 status = pthread_mutex_lock(&th->th.th_suspend_mx.m_mutex);
1425 KMP_CHECK_SYSFAIL(
"pthread_mutex_lock", status);
1427 KF_TRACE(10, (
"__kmp_suspend_template: T#%d setting sleep bit for spin(%p)\n",
1428 th_gtid, flag->get()));
1432 old_spin = flag->set_sleeping();
1434 KF_TRACE(5, (
"__kmp_suspend_template: T#%d set sleep bit for spin(%p)==%x," 1436 th_gtid, flag->get(), flag->load(), old_spin));
1438 if (flag->done_check_val(old_spin)) {
1439 old_spin = flag->unset_sleeping();
1440 KF_TRACE(5, (
"__kmp_suspend_template: T#%d false alarm, reset sleep bit " 1442 th_gtid, flag->get()));
1447 int deactivated = FALSE;
1448 TCW_PTR(th->th.th_sleep_loc, (
void *)flag);
1450 while (flag->is_sleeping()) {
1451 #ifdef DEBUG_SUSPEND 1453 __kmp_suspend_count++;
1454 __kmp_print_cond(buffer, &th->th.th_suspend_cv);
1455 __kmp_printf(
"__kmp_suspend_template: suspending T#%d: %s\n", th_gtid,
1461 th->th.th_active = FALSE;
1462 if (th->th.th_active_in_pool) {
1463 th->th.th_active_in_pool = FALSE;
1464 KMP_ATOMIC_DEC(&__kmp_thread_pool_active_nth);
1465 KMP_DEBUG_ASSERT(TCR_4(__kmp_thread_pool_active_nth) >= 0);
1470 #if USE_SUSPEND_TIMEOUT 1471 struct timespec now;
1472 struct timeval tval;
1475 status = gettimeofday(&tval, NULL);
1476 KMP_CHECK_SYSFAIL_ERRNO(
"gettimeofday", status);
1477 TIMEVAL_TO_TIMESPEC(&tval, &now);
1479 msecs = (4 * __kmp_dflt_blocktime) + 200;
1480 now.tv_sec += msecs / 1000;
1481 now.tv_nsec += (msecs % 1000) * 1000;
1483 KF_TRACE(15, (
"__kmp_suspend_template: T#%d about to perform " 1484 "pthread_cond_timedwait\n",
1486 status = pthread_cond_timedwait(&th->th.th_suspend_cv.c_cond,
1487 &th->th.th_suspend_mx.m_mutex, &now);
1489 KF_TRACE(15, (
"__kmp_suspend_template: T#%d about to perform" 1490 " pthread_cond_wait\n",
1492 status = pthread_cond_wait(&th->th.th_suspend_cv.c_cond,
1493 &th->th.th_suspend_mx.m_mutex);
1496 if ((status != 0) && (status != EINTR) && (status != ETIMEDOUT)) {
1497 KMP_SYSFAIL(
"pthread_cond_wait", status);
1500 if (status == ETIMEDOUT) {
1501 if (flag->is_sleeping()) {
1503 (
"__kmp_suspend_template: T#%d timeout wakeup\n", th_gtid));
1505 KF_TRACE(2, (
"__kmp_suspend_template: T#%d timeout wakeup, sleep bit " 1509 }
else if (flag->is_sleeping()) {
1511 (
"__kmp_suspend_template: T#%d spurious wakeup\n", th_gtid));
1518 th->th.th_active = TRUE;
1519 if (TCR_4(th->th.th_in_pool)) {
1520 KMP_ATOMIC_INC(&__kmp_thread_pool_active_nth);
1521 th->th.th_active_in_pool = TRUE;
1525 #ifdef DEBUG_SUSPEND 1528 __kmp_print_cond(buffer, &th->th.th_suspend_cv);
1529 __kmp_printf(
"__kmp_suspend_template: T#%d has awakened: %s\n", th_gtid,
1534 status = pthread_mutex_unlock(&th->th.th_suspend_mx.m_mutex);
1535 KMP_CHECK_SYSFAIL(
"pthread_mutex_unlock", status);
1536 KF_TRACE(30, (
"__kmp_suspend_template: T#%d exit\n", th_gtid));
1539 void __kmp_suspend_32(
int th_gtid, kmp_flag_32 *flag) {
1540 __kmp_suspend_template(th_gtid, flag);
1542 void __kmp_suspend_64(
int th_gtid, kmp_flag_64 *flag) {
1543 __kmp_suspend_template(th_gtid, flag);
1545 void __kmp_suspend_oncore(
int th_gtid, kmp_flag_oncore *flag) {
1546 __kmp_suspend_template(th_gtid, flag);
1553 static inline void __kmp_resume_template(
int target_gtid, C *flag) {
1554 KMP_TIME_DEVELOPER_PARTITIONED_BLOCK(USER_resume);
1555 kmp_info_t *th = __kmp_threads[target_gtid];
1559 int gtid = TCR_4(__kmp_init_gtid) ? __kmp_get_gtid() : -1;
1562 KF_TRACE(30, (
"__kmp_resume_template: T#%d wants to wakeup T#%d enter\n",
1563 gtid, target_gtid));
1564 KMP_DEBUG_ASSERT(gtid != target_gtid);
1566 __kmp_suspend_initialize_thread(th);
1568 status = pthread_mutex_lock(&th->th.th_suspend_mx.m_mutex);
1569 KMP_CHECK_SYSFAIL(
"pthread_mutex_lock", status);
1572 flag = (C *)CCAST(
void *, th->th.th_sleep_loc);
1577 if (!flag || flag->get_type() != flag->get_ptr_type()) {
1580 KF_TRACE(5, (
"__kmp_resume_template: T#%d exiting, thread T#%d already " 1581 "awake: flag(%p)\n",
1582 gtid, target_gtid, NULL));
1583 status = pthread_mutex_unlock(&th->th.th_suspend_mx.m_mutex);
1584 KMP_CHECK_SYSFAIL(
"pthread_mutex_unlock", status);
1588 typename C::flag_t old_spin = flag->unset_sleeping();
1589 if (!flag->is_sleeping_val(old_spin)) {
1590 KF_TRACE(5, (
"__kmp_resume_template: T#%d exiting, thread T#%d already " 1593 gtid, target_gtid, flag->get(), old_spin, flag->load()));
1594 status = pthread_mutex_unlock(&th->th.th_suspend_mx.m_mutex);
1595 KMP_CHECK_SYSFAIL(
"pthread_mutex_unlock", status);
1598 KF_TRACE(5, (
"__kmp_resume_template: T#%d about to wakeup T#%d, reset " 1599 "sleep bit for flag's loc(%p): " 1601 gtid, target_gtid, flag->get(), old_spin, flag->load()));
1603 TCW_PTR(th->th.th_sleep_loc, NULL);
1605 #ifdef DEBUG_SUSPEND 1608 __kmp_print_cond(buffer, &th->th.th_suspend_cv);
1609 __kmp_printf(
"__kmp_resume_template: T#%d resuming T#%d: %s\n", gtid,
1610 target_gtid, buffer);
1613 status = pthread_cond_signal(&th->th.th_suspend_cv.c_cond);
1614 KMP_CHECK_SYSFAIL(
"pthread_cond_signal", status);
1615 status = pthread_mutex_unlock(&th->th.th_suspend_mx.m_mutex);
1616 KMP_CHECK_SYSFAIL(
"pthread_mutex_unlock", status);
1617 KF_TRACE(30, (
"__kmp_resume_template: T#%d exiting after signaling wake up" 1619 gtid, target_gtid));
1622 void __kmp_resume_32(
int target_gtid, kmp_flag_32 *flag) {
1623 __kmp_resume_template(target_gtid, flag);
1625 void __kmp_resume_64(
int target_gtid, kmp_flag_64 *flag) {
1626 __kmp_resume_template(target_gtid, flag);
1628 void __kmp_resume_oncore(
int target_gtid, kmp_flag_oncore *flag) {
1629 __kmp_resume_template(target_gtid, flag);
1633 void __kmp_resume_monitor() {
1634 KMP_TIME_DEVELOPER_PARTITIONED_BLOCK(USER_resume);
1637 int gtid = TCR_4(__kmp_init_gtid) ? __kmp_get_gtid() : -1;
1638 KF_TRACE(30, (
"__kmp_resume_monitor: T#%d wants to wakeup T#%d enter\n", gtid,
1640 KMP_DEBUG_ASSERT(gtid != KMP_GTID_MONITOR);
1642 status = pthread_mutex_lock(&__kmp_wait_mx.m_mutex);
1643 KMP_CHECK_SYSFAIL(
"pthread_mutex_lock", status);
1644 #ifdef DEBUG_SUSPEND 1647 __kmp_print_cond(buffer, &__kmp_wait_cv.c_cond);
1648 __kmp_printf(
"__kmp_resume_monitor: T#%d resuming T#%d: %s\n", gtid,
1649 KMP_GTID_MONITOR, buffer);
1652 status = pthread_cond_signal(&__kmp_wait_cv.c_cond);
1653 KMP_CHECK_SYSFAIL(
"pthread_cond_signal", status);
1654 status = pthread_mutex_unlock(&__kmp_wait_mx.m_mutex);
1655 KMP_CHECK_SYSFAIL(
"pthread_mutex_unlock", status);
1656 KF_TRACE(30, (
"__kmp_resume_monitor: T#%d exiting after signaling wake up" 1658 gtid, KMP_GTID_MONITOR));
1660 #endif // KMP_USE_MONITOR 1662 void __kmp_yield(
int cond) {
1666 if (!__kmp_yielding_on)
1669 if (__kmp_yield_cycle && !KMP_YIELD_NOW())
1675 void __kmp_gtid_set_specific(
int gtid) {
1676 if (__kmp_init_gtid) {
1678 status = pthread_setspecific(__kmp_gtid_threadprivate_key,
1679 (
void *)(intptr_t)(gtid + 1));
1680 KMP_CHECK_SYSFAIL(
"pthread_setspecific", status);
1682 KA_TRACE(50, (
"__kmp_gtid_set_specific: runtime shutdown, returning\n"));
1686 int __kmp_gtid_get_specific() {
1688 if (!__kmp_init_gtid) {
1689 KA_TRACE(50, (
"__kmp_gtid_get_specific: runtime shutdown, returning " 1690 "KMP_GTID_SHUTDOWN\n"));
1691 return KMP_GTID_SHUTDOWN;
1693 gtid = (int)(
size_t)pthread_getspecific(__kmp_gtid_threadprivate_key);
1695 gtid = KMP_GTID_DNE;
1699 KA_TRACE(50, (
"__kmp_gtid_get_specific: key:%d gtid:%d\n",
1700 __kmp_gtid_threadprivate_key, gtid));
1704 double __kmp_read_cpu_time(
void) {
1710 return (buffer.tms_utime + buffer.tms_cutime) / (double)CLOCKS_PER_SEC;
1713 int __kmp_read_system_info(
struct kmp_sys_info *info) {
1715 struct rusage r_usage;
1717 memset(info, 0,
sizeof(*info));
1719 status = getrusage(RUSAGE_SELF, &r_usage);
1720 KMP_CHECK_SYSFAIL_ERRNO(
"getrusage", status);
1723 info->maxrss = r_usage.ru_maxrss;
1725 info->minflt = r_usage.ru_minflt;
1727 info->majflt = r_usage.ru_majflt;
1729 info->nswap = r_usage.ru_nswap;
1731 info->inblock = r_usage.ru_inblock;
1733 info->oublock = r_usage.ru_oublock;
1735 info->nvcsw = r_usage.ru_nvcsw;
1737 info->nivcsw = r_usage.ru_nivcsw;
1739 return (status != 0);
1742 void __kmp_read_system_time(
double *delta) {
1744 struct timeval tval;
1745 struct timespec stop;
1748 status = gettimeofday(&tval, NULL);
1749 KMP_CHECK_SYSFAIL_ERRNO(
"gettimeofday", status);
1750 TIMEVAL_TO_TIMESPEC(&tval, &stop);
1751 t_ns = TS2NS(stop) - TS2NS(__kmp_sys_timer_data.start);
1752 *delta = (t_ns * 1e-9);
1755 void __kmp_clear_system_time(
void) {
1756 struct timeval tval;
1758 status = gettimeofday(&tval, NULL);
1759 KMP_CHECK_SYSFAIL_ERRNO(
"gettimeofday", status);
1760 TIMEVAL_TO_TIMESPEC(&tval, &__kmp_sys_timer_data.start);
1763 static int __kmp_get_xproc(
void) {
1767 #if KMP_OS_LINUX || KMP_OS_FREEBSD || KMP_OS_NETBSD || KMP_OS_HURD 1769 r = sysconf(_SC_NPROCESSORS_ONLN);
1777 host_basic_info_data_t info;
1778 mach_msg_type_number_t num = HOST_BASIC_INFO_COUNT;
1779 rc = host_info(mach_host_self(), HOST_BASIC_INFO, (host_info_t)&info, &num);
1780 if (rc == 0 && num == HOST_BASIC_INFO_COUNT) {
1783 r = info.avail_cpus;
1785 KMP_WARNING(CantGetNumAvailCPU);
1786 KMP_INFORM(AssumedNumCPU);
1791 #error "Unknown or unsupported OS." 1795 return r > 0 ? r : 2;
1799 int __kmp_read_from_file(
char const *path,
char const *format, ...) {
1803 va_start(args, format);
1804 FILE *f = fopen(path,
"rb");
1807 result = vfscanf(f, format, args);
1813 void __kmp_runtime_initialize(
void) {
1815 pthread_mutexattr_t mutex_attr;
1816 pthread_condattr_t cond_attr;
1818 if (__kmp_init_runtime) {
1822 #if (KMP_ARCH_X86 || KMP_ARCH_X86_64) 1823 if (!__kmp_cpuinfo.initialized) {
1824 __kmp_query_cpuid(&__kmp_cpuinfo);
1828 __kmp_xproc = __kmp_get_xproc();
1830 if (sysconf(_SC_THREADS)) {
1833 __kmp_sys_max_nth = sysconf(_SC_THREAD_THREADS_MAX);
1834 if (__kmp_sys_max_nth == -1) {
1836 __kmp_sys_max_nth = INT_MAX;
1837 }
else if (__kmp_sys_max_nth <= 1) {
1839 __kmp_sys_max_nth = KMP_MAX_NTH;
1843 __kmp_sys_min_stksize = sysconf(_SC_THREAD_STACK_MIN);
1844 if (__kmp_sys_min_stksize <= 1) {
1845 __kmp_sys_min_stksize = KMP_MIN_STKSIZE;
1850 __kmp_tls_gtid_min = KMP_TLS_GTID_MIN;
1852 status = pthread_key_create(&__kmp_gtid_threadprivate_key,
1853 __kmp_internal_end_dest);
1854 KMP_CHECK_SYSFAIL(
"pthread_key_create", status);
1855 status = pthread_mutexattr_init(&mutex_attr);
1856 KMP_CHECK_SYSFAIL(
"pthread_mutexattr_init", status);
1857 status = pthread_mutex_init(&__kmp_wait_mx.m_mutex, &mutex_attr);
1858 KMP_CHECK_SYSFAIL(
"pthread_mutex_init", status);
1859 status = pthread_condattr_init(&cond_attr);
1860 KMP_CHECK_SYSFAIL(
"pthread_condattr_init", status);
1861 status = pthread_cond_init(&__kmp_wait_cv.c_cond, &cond_attr);
1862 KMP_CHECK_SYSFAIL(
"pthread_cond_init", status);
1864 __kmp_itt_initialize();
1867 __kmp_init_runtime = TRUE;
1870 void __kmp_runtime_destroy(
void) {
1873 if (!__kmp_init_runtime) {
1878 __kmp_itt_destroy();
1881 status = pthread_key_delete(__kmp_gtid_threadprivate_key);
1882 KMP_CHECK_SYSFAIL(
"pthread_key_delete", status);
1884 status = pthread_mutex_destroy(&__kmp_wait_mx.m_mutex);
1885 if (status != 0 && status != EBUSY) {
1886 KMP_SYSFAIL(
"pthread_mutex_destroy", status);
1888 status = pthread_cond_destroy(&__kmp_wait_cv.c_cond);
1889 if (status != 0 && status != EBUSY) {
1890 KMP_SYSFAIL(
"pthread_cond_destroy", status);
1892 #if KMP_AFFINITY_SUPPORTED 1893 __kmp_affinity_uninitialize();
1896 __kmp_init_runtime = FALSE;
1901 void __kmp_thread_sleep(
int millis) { sleep((millis + 500) / 1000); }
1904 void __kmp_elapsed(
double *t) {
1906 #ifdef FIX_SGI_CLOCK 1909 status = clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &ts);
1910 KMP_CHECK_SYSFAIL_ERRNO(
"clock_gettime", status);
1912 (double)ts.tv_nsec * (1.0 / (
double)KMP_NSEC_PER_SEC) + (
double)ts.tv_sec;
1916 status = gettimeofday(&tv, NULL);
1917 KMP_CHECK_SYSFAIL_ERRNO(
"gettimeofday", status);
1919 (double)tv.tv_usec * (1.0 / (
double)KMP_USEC_PER_SEC) + (
double)tv.tv_sec;
1924 void __kmp_elapsed_tick(
double *t) { *t = 1 / (double)CLOCKS_PER_SEC; }
1927 kmp_uint64 __kmp_now_nsec() {
1929 gettimeofday(&t, NULL);
1930 return KMP_NSEC_PER_SEC * t.tv_sec + 1000 * t.tv_usec;
1933 #if KMP_ARCH_X86 || KMP_ARCH_X86_64 1935 void __kmp_initialize_system_tick() {
1936 kmp_uint64 delay = 100000;
1937 kmp_uint64 nsec = __kmp_now_nsec();
1938 kmp_uint64 goal = __kmp_hardware_timestamp() + delay;
1940 while ((now = __kmp_hardware_timestamp()) < goal)
1942 __kmp_ticks_per_msec =
1943 (kmp_uint64)(1e6 * (delay + (now - goal)) / (__kmp_now_nsec() - nsec));
1950 int __kmp_is_address_mapped(
void *addr) {
1955 #if KMP_OS_LINUX || KMP_OS_FREEBSD || KMP_OS_HURD 1960 char *name = __kmp_str_format(
"/proc/%d/maps", getpid());
1963 file = fopen(name,
"r");
1964 KMP_ASSERT(file != NULL);
1968 void *beginning = NULL;
1969 void *ending = NULL;
1972 rc = fscanf(file,
"%p-%p %4s %*[^\n]\n", &beginning, &ending, perms);
1976 KMP_ASSERT(rc == 3 &&
1977 KMP_STRLEN(perms) == 4);
1980 if ((addr >= beginning) && (addr < ending)) {
1982 if (strcmp(perms,
"rw") == 0) {
1992 KMP_INTERNAL_FREE(name);
2001 rc = vm_read_overwrite(
2003 (vm_address_t)(addr),
2005 (vm_address_t)(&buffer),
2013 #elif KMP_OS_FREEBSD || KMP_OS_NETBSD 2020 #error "Unknown or unsupported OS" 2028 #ifdef USE_LOAD_BALANCE 2037 int __kmp_get_load_balance(
int max) {
2041 int res = getloadavg(averages, 3);
2046 if (__kmp_load_balance_interval < 180 && (res >= 1)) {
2047 ret_avg = averages[0];
2048 }
else if ((__kmp_load_balance_interval >= 180 &&
2049 __kmp_load_balance_interval < 600) &&
2051 ret_avg = averages[1];
2052 }
else if ((__kmp_load_balance_interval >= 600) && (res == 3)) {
2053 ret_avg = averages[2];
2067 int __kmp_get_load_balance(
int max) {
2068 static int permanent_error = 0;
2069 static int glb_running_threads = 0;
2071 static double glb_call_time = 0;
2073 int running_threads = 0;
2075 DIR *proc_dir = NULL;
2076 struct dirent *proc_entry = NULL;
2078 kmp_str_buf_t task_path;
2079 DIR *task_dir = NULL;
2080 struct dirent *task_entry = NULL;
2081 int task_path_fixed_len;
2083 kmp_str_buf_t stat_path;
2085 int stat_path_fixed_len;
2087 int total_processes = 0;
2088 int total_threads = 0;
2090 double call_time = 0.0;
2092 __kmp_str_buf_init(&task_path);
2093 __kmp_str_buf_init(&stat_path);
2095 __kmp_elapsed(&call_time);
2097 if (glb_call_time &&
2098 (call_time - glb_call_time < __kmp_load_balance_interval)) {
2099 running_threads = glb_running_threads;
2103 glb_call_time = call_time;
2106 if (permanent_error) {
2107 running_threads = -1;
2116 proc_dir = opendir(
"/proc");
2117 if (proc_dir == NULL) {
2120 running_threads = -1;
2121 permanent_error = 1;
2126 __kmp_str_buf_cat(&task_path,
"/proc/", 6);
2127 task_path_fixed_len = task_path.used;
2129 proc_entry = readdir(proc_dir);
2130 while (proc_entry != NULL) {
2133 if (proc_entry->d_type == DT_DIR && isdigit(proc_entry->d_name[0])) {
2141 KMP_DEBUG_ASSERT(total_processes != 1 ||
2142 strcmp(proc_entry->d_name,
"1") == 0);
2145 task_path.used = task_path_fixed_len;
2146 __kmp_str_buf_cat(&task_path, proc_entry->d_name,
2147 KMP_STRLEN(proc_entry->d_name));
2148 __kmp_str_buf_cat(&task_path,
"/task", 5);
2150 task_dir = opendir(task_path.str);
2151 if (task_dir == NULL) {
2160 if (strcmp(proc_entry->d_name,
"1") == 0) {
2161 running_threads = -1;
2162 permanent_error = 1;
2167 __kmp_str_buf_clear(&stat_path);
2168 __kmp_str_buf_cat(&stat_path, task_path.str, task_path.used);
2169 __kmp_str_buf_cat(&stat_path,
"/", 1);
2170 stat_path_fixed_len = stat_path.used;
2172 task_entry = readdir(task_dir);
2173 while (task_entry != NULL) {
2175 if (proc_entry->d_type == DT_DIR && isdigit(task_entry->d_name[0])) {
2183 stat_path_fixed_len;
2184 __kmp_str_buf_cat(&stat_path, task_entry->d_name,
2185 KMP_STRLEN(task_entry->d_name));
2186 __kmp_str_buf_cat(&stat_path,
"/stat", 5);
2190 stat_file = open(stat_path.str, O_RDONLY);
2191 if (stat_file == -1) {
2221 len = read(stat_file, buffer,
sizeof(buffer) - 1);
2228 char *close_parent = strstr(buffer,
") ");
2229 if (close_parent != NULL) {
2230 char state = *(close_parent + 2);
2233 if (running_threads >= max) {
2243 task_entry = readdir(task_dir);
2249 proc_entry = readdir(proc_dir);
2255 KMP_DEBUG_ASSERT(running_threads > 0);
2256 if (running_threads <= 0) {
2257 running_threads = 1;
2261 if (proc_dir != NULL) {
2264 __kmp_str_buf_free(&task_path);
2265 if (task_dir != NULL) {
2268 __kmp_str_buf_free(&stat_path);
2269 if (stat_file != -1) {
2273 glb_running_threads = running_threads;
2275 return running_threads;
2279 #endif // KMP_OS_DARWIN 2281 #endif // USE_LOAD_BALANCE 2283 #if !(KMP_ARCH_X86 || KMP_ARCH_X86_64 || KMP_MIC || \ 2284 ((KMP_OS_LINUX || KMP_OS_DARWIN) && KMP_ARCH_AARCH64) || KMP_ARCH_PPC64) 2288 int __kmp_invoke_microtask(microtask_t pkfn,
int gtid,
int tid,
int argc,
2292 void **exit_frame_ptr
2296 *exit_frame_ptr = OMPT_GET_FRAME_ADDRESS(0);
2301 fprintf(stderr,
"Too many args to microtask: %d!\n", argc);
2305 (*pkfn)(>id, &tid);
2308 (*pkfn)(>id, &tid, p_argv[0]);
2311 (*pkfn)(>id, &tid, p_argv[0], p_argv[1]);
2314 (*pkfn)(>id, &tid, p_argv[0], p_argv[1], p_argv[2]);
2317 (*pkfn)(>id, &tid, p_argv[0], p_argv[1], p_argv[2], p_argv[3]);
2320 (*pkfn)(>id, &tid, p_argv[0], p_argv[1], p_argv[2], p_argv[3], p_argv[4]);
2323 (*pkfn)(>id, &tid, p_argv[0], p_argv[1], p_argv[2], p_argv[3], p_argv[4],
2327 (*pkfn)(>id, &tid, p_argv[0], p_argv[1], p_argv[2], p_argv[3], p_argv[4],
2328 p_argv[5], p_argv[6]);
2331 (*pkfn)(>id, &tid, p_argv[0], p_argv[1], p_argv[2], p_argv[3], p_argv[4],
2332 p_argv[5], p_argv[6], p_argv[7]);
2335 (*pkfn)(>id, &tid, p_argv[0], p_argv[1], p_argv[2], p_argv[3], p_argv[4],
2336 p_argv[5], p_argv[6], p_argv[7], p_argv[8]);
2339 (*pkfn)(>id, &tid, p_argv[0], p_argv[1], p_argv[2], p_argv[3], p_argv[4],
2340 p_argv[5], p_argv[6], p_argv[7], p_argv[8], p_argv[9]);
2343 (*pkfn)(>id, &tid, p_argv[0], p_argv[1], p_argv[2], p_argv[3], p_argv[4],
2344 p_argv[5], p_argv[6], p_argv[7], p_argv[8], p_argv[9], p_argv[10]);
2347 (*pkfn)(>id, &tid, p_argv[0], p_argv[1], p_argv[2], p_argv[3], p_argv[4],
2348 p_argv[5], p_argv[6], p_argv[7], p_argv[8], p_argv[9], p_argv[10],
2352 (*pkfn)(>id, &tid, p_argv[0], p_argv[1], p_argv[2], p_argv[3], p_argv[4],
2353 p_argv[5], p_argv[6], p_argv[7], p_argv[8], p_argv[9], p_argv[10],
2354 p_argv[11], p_argv[12]);
2357 (*pkfn)(>id, &tid, p_argv[0], p_argv[1], p_argv[2], p_argv[3], p_argv[4],
2358 p_argv[5], p_argv[6], p_argv[7], p_argv[8], p_argv[9], p_argv[10],
2359 p_argv[11], p_argv[12], p_argv[13]);
2362 (*pkfn)(>id, &tid, p_argv[0], p_argv[1], p_argv[2], p_argv[3], p_argv[4],
2363 p_argv[5], p_argv[6], p_argv[7], p_argv[8], p_argv[9], p_argv[10],
2364 p_argv[11], p_argv[12], p_argv[13], p_argv[14]);
2369 *exit_frame_ptr = 0;
#define KMP_INIT_PARTITIONED_TIMERS(name)
Initializes the paritioned timers to begin with name.