LLVM OpenMP* Runtime Library
kmp_sched.cpp
1 /*
2  * kmp_sched.cpp -- static scheduling -- iteration initialization
3  */
4 
5 //===----------------------------------------------------------------------===//
6 //
7 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
8 // See https://llvm.org/LICENSE.txt for license information.
9 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
10 //
11 //===----------------------------------------------------------------------===//
12 
13 /* Static scheduling initialization.
14 
15  NOTE: team->t.t_nproc is a constant inside of any dispatch loop, however
16  it may change values between parallel regions. __kmp_max_nth
17  is the largest value __kmp_nth may take, 1 is the smallest. */
18 
19 #include "kmp.h"
20 #include "kmp_error.h"
21 #include "kmp_i18n.h"
22 #include "kmp_itt.h"
23 #include "kmp_stats.h"
24 #include "kmp_str.h"
25 
26 #if OMPT_SUPPORT
27 #include "ompt-specific.h"
28 #endif
29 
30 #ifdef KMP_DEBUG
31 //-------------------------------------------------------------------------
32 // template for debug prints specification ( d, u, lld, llu )
33 char const *traits_t<int>::spec = "d";
34 char const *traits_t<unsigned int>::spec = "u";
35 char const *traits_t<long long>::spec = "lld";
36 char const *traits_t<unsigned long long>::spec = "llu";
37 char const *traits_t<long>::spec = "ld";
38 //-------------------------------------------------------------------------
39 #endif
40 
41 #if KMP_STATS_ENABLED
42 #define KMP_STATS_LOOP_END(stat) \
43  { \
44  kmp_int64 t; \
45  kmp_int64 u = (kmp_int64)(*pupper); \
46  kmp_int64 l = (kmp_int64)(*plower); \
47  kmp_int64 i = (kmp_int64)incr; \
48  if (i == 1) { \
49  t = u - l + 1; \
50  } else if (i == -1) { \
51  t = l - u + 1; \
52  } else if (i > 0) { \
53  t = (u - l) / i + 1; \
54  } else { \
55  KMP_DEBUG_ASSERT(i != 0); \
56  t = (l - u) / (-i) + 1; \
57  } \
58  KMP_COUNT_VALUE(stat, t); \
59  KMP_POP_PARTITIONED_TIMER(); \
60  }
61 #else
62 #define KMP_STATS_LOOP_END(stat) /* Nothing */
63 #endif
64 
65 #if USE_ITT_BUILD || defined KMP_DEBUG
66 static ident_t loc_stub = {0, KMP_IDENT_KMPC, 0, 0, ";unknown;unknown;0;0;;"};
67 static inline void check_loc(ident_t *&loc) {
68  if (loc == NULL)
69  loc = &loc_stub; // may need to report location info to ittnotify
70 }
71 #endif
72 
73 template <typename T>
74 static void __kmp_for_static_init(ident_t *loc, kmp_int32 global_tid,
75  kmp_int32 schedtype, kmp_int32 *plastiter,
76  T *plower, T *pupper,
77  typename traits_t<T>::signed_t *pstride,
78  typename traits_t<T>::signed_t incr,
79  typename traits_t<T>::signed_t chunk
80 #if OMPT_SUPPORT && OMPT_OPTIONAL
81  ,
82  void *codeptr
83 #endif
84 ) {
85  KMP_COUNT_BLOCK(OMP_LOOP_STATIC);
86  KMP_PUSH_PARTITIONED_TIMER(OMP_loop_static);
87  KMP_PUSH_PARTITIONED_TIMER(OMP_loop_static_scheduling);
88 
89  // Clear monotonic/nonmonotonic bits (ignore it)
90  schedtype = SCHEDULE_WITHOUT_MODIFIERS(schedtype);
91 
92  typedef typename traits_t<T>::unsigned_t UT;
93  typedef typename traits_t<T>::signed_t ST;
94  /* this all has to be changed back to TID and such.. */
95  kmp_int32 gtid = global_tid;
96  kmp_uint32 tid;
97  kmp_uint32 nth;
98  UT trip_count;
99  kmp_team_t *team;
100  __kmp_assert_valid_gtid(gtid);
101  kmp_info_t *th = __kmp_threads[gtid];
102 
103 #if OMPT_SUPPORT && OMPT_OPTIONAL
104  ompt_team_info_t *team_info = NULL;
105  ompt_task_info_t *task_info = NULL;
106  ompt_work_t ompt_work_type = ompt_work_loop_static;
107 
108  static kmp_int8 warn = 0;
109 
110  if (ompt_enabled.ompt_callback_work || ompt_enabled.ompt_callback_dispatch) {
111  // Only fully initialize variables needed by OMPT if OMPT is enabled.
112  team_info = __ompt_get_teaminfo(0, NULL);
113  task_info = __ompt_get_task_info_object(0);
114  // Determine workshare type
115  if (loc != NULL) {
116  if ((loc->flags & KMP_IDENT_WORK_LOOP) != 0) {
117  ompt_work_type = ompt_work_loop_static;
118  } else if ((loc->flags & KMP_IDENT_WORK_SECTIONS) != 0) {
119  ompt_work_type = ompt_work_sections;
120  } else if ((loc->flags & KMP_IDENT_WORK_DISTRIBUTE) != 0) {
121  ompt_work_type = ompt_work_distribute;
122  } else {
123  kmp_int8 bool_res =
124  KMP_COMPARE_AND_STORE_ACQ8(&warn, (kmp_int8)0, (kmp_int8)1);
125  if (bool_res)
126  KMP_WARNING(OmptOutdatedWorkshare);
127  }
128  KMP_DEBUG_ASSERT(ompt_work_type);
129  }
130  }
131 #endif
132 
133  KMP_DEBUG_ASSERT(plastiter && plower && pupper && pstride);
134  KE_TRACE(10, ("__kmpc_for_static_init called (%d)\n", global_tid));
135 #ifdef KMP_DEBUG
136  {
137  char *buff;
138  // create format specifiers before the debug output
139  buff = __kmp_str_format(
140  "__kmpc_for_static_init: T#%%d sched=%%d liter=%%d iter=(%%%s,"
141  " %%%s, %%%s) incr=%%%s chunk=%%%s signed?<%s>\n",
142  traits_t<T>::spec, traits_t<T>::spec, traits_t<ST>::spec,
143  traits_t<ST>::spec, traits_t<ST>::spec, traits_t<T>::spec);
144  KD_TRACE(100, (buff, global_tid, schedtype, *plastiter, *plower, *pupper,
145  *pstride, incr, chunk));
146  __kmp_str_free(&buff);
147  }
148 #endif
149 
150  if (__kmp_env_consistency_check) {
151  __kmp_push_workshare(global_tid, ct_pdo, loc);
152  if (incr == 0) {
153  __kmp_error_construct(kmp_i18n_msg_CnsLoopIncrZeroProhibited, ct_pdo,
154  loc);
155  }
156  }
157  /* special handling for zero-trip loops */
158  if (incr > 0 ? (*pupper < *plower) : (*plower < *pupper)) {
159  if (plastiter != NULL)
160  *plastiter = FALSE;
161  /* leave pupper and plower set to entire iteration space */
162  *pstride = incr; /* value should never be used */
163 // *plower = *pupper - incr;
164 // let compiler bypass the illegal loop (like for(i=1;i<10;i--))
165 // THE LINE COMMENTED ABOVE CAUSED shape2F/h_tests_1.f TO HAVE A FAILURE
166 // ON A ZERO-TRIP LOOP (lower=1, upper=0,stride=1) - JPH June 23, 2009.
167 #ifdef KMP_DEBUG
168  {
169  char *buff;
170  // create format specifiers before the debug output
171  buff = __kmp_str_format("__kmpc_for_static_init:(ZERO TRIP) liter=%%d "
172  "lower=%%%s upper=%%%s stride = %%%s "
173  "signed?<%s>, loc = %%s\n",
174  traits_t<T>::spec, traits_t<T>::spec,
175  traits_t<ST>::spec, traits_t<T>::spec);
176  check_loc(loc);
177  KD_TRACE(100,
178  (buff, *plastiter, *plower, *pupper, *pstride, loc->psource));
179  __kmp_str_free(&buff);
180  }
181 #endif
182  KE_TRACE(10, ("__kmpc_for_static_init: T#%d return\n", global_tid));
183 
184 #if OMPT_SUPPORT && OMPT_OPTIONAL
185  if (ompt_enabled.ompt_callback_work) {
186  ompt_callbacks.ompt_callback(ompt_callback_work)(
187  ompt_work_type, ompt_scope_begin, &(team_info->parallel_data),
188  &(task_info->task_data), 0, codeptr);
189  }
190 #endif
191  KMP_STATS_LOOP_END(OMP_loop_static_iterations);
192  return;
193  }
194 
195  // Although there are schedule enumerations above kmp_ord_upper which are not
196  // schedules for "distribute", the only ones which are useful are dynamic, so
197  // cannot be seen here, since this codepath is only executed for static
198  // schedules.
199  if (schedtype > kmp_ord_upper) {
200  // we are in DISTRIBUTE construct
201  schedtype += kmp_sch_static -
202  kmp_distribute_static; // AC: convert to usual schedule type
203  if (th->th.th_team->t.t_serialized > 1) {
204  tid = 0;
205  team = th->th.th_team;
206  } else {
207  tid = th->th.th_team->t.t_master_tid;
208  team = th->th.th_team->t.t_parent;
209  }
210  } else {
211  tid = __kmp_tid_from_gtid(global_tid);
212  team = th->th.th_team;
213  }
214 
215  /* determine if "for" loop is an active worksharing construct */
216  if (team->t.t_serialized) {
217  /* serialized parallel, each thread executes whole iteration space */
218  if (plastiter != NULL)
219  *plastiter = TRUE;
220  /* leave pupper and plower set to entire iteration space */
221  *pstride =
222  (incr > 0) ? (*pupper - *plower + 1) : (-(*plower - *pupper + 1));
223 
224 #ifdef KMP_DEBUG
225  {
226  char *buff;
227  // create format specifiers before the debug output
228  buff = __kmp_str_format("__kmpc_for_static_init: (serial) liter=%%d "
229  "lower=%%%s upper=%%%s stride = %%%s\n",
230  traits_t<T>::spec, traits_t<T>::spec,
231  traits_t<ST>::spec);
232  KD_TRACE(100, (buff, *plastiter, *plower, *pupper, *pstride));
233  __kmp_str_free(&buff);
234  }
235 #endif
236  KE_TRACE(10, ("__kmpc_for_static_init: T#%d return\n", global_tid));
237 
238 #if OMPT_SUPPORT && OMPT_OPTIONAL
239  if (ompt_enabled.ompt_callback_work) {
240  ompt_callbacks.ompt_callback(ompt_callback_work)(
241  ompt_work_type, ompt_scope_begin, &(team_info->parallel_data),
242  &(task_info->task_data), *pstride, codeptr);
243  }
244 #endif
245  KMP_STATS_LOOP_END(OMP_loop_static_iterations);
246  return;
247  }
248  nth = team->t.t_nproc;
249  if (nth == 1) {
250  if (plastiter != NULL)
251  *plastiter = TRUE;
252  *pstride =
253  (incr > 0) ? (*pupper - *plower + 1) : (-(*plower - *pupper + 1));
254 #ifdef KMP_DEBUG
255  {
256  char *buff;
257  // create format specifiers before the debug output
258  buff = __kmp_str_format("__kmpc_for_static_init: (serial) liter=%%d "
259  "lower=%%%s upper=%%%s stride = %%%s\n",
260  traits_t<T>::spec, traits_t<T>::spec,
261  traits_t<ST>::spec);
262  KD_TRACE(100, (buff, *plastiter, *plower, *pupper, *pstride));
263  __kmp_str_free(&buff);
264  }
265 #endif
266  KE_TRACE(10, ("__kmpc_for_static_init: T#%d return\n", global_tid));
267 
268 #if OMPT_SUPPORT && OMPT_OPTIONAL
269  if (ompt_enabled.ompt_callback_work) {
270  ompt_callbacks.ompt_callback(ompt_callback_work)(
271  ompt_work_type, ompt_scope_begin, &(team_info->parallel_data),
272  &(task_info->task_data), *pstride, codeptr);
273  }
274 #endif
275  KMP_STATS_LOOP_END(OMP_loop_static_iterations);
276  return;
277  }
278 
279  /* compute trip count */
280  if (incr == 1) {
281  trip_count = *pupper - *plower + 1;
282  } else if (incr == -1) {
283  trip_count = *plower - *pupper + 1;
284  } else if (incr > 0) {
285  // upper-lower can exceed the limit of signed type
286  trip_count = (UT)(*pupper - *plower) / incr + 1;
287  } else {
288  KMP_DEBUG_ASSERT(incr != 0);
289  trip_count = (UT)(*plower - *pupper) / (-incr) + 1;
290  }
291 
292 #if KMP_STATS_ENABLED
293  if (KMP_MASTER_GTID(gtid)) {
294  KMP_COUNT_VALUE(OMP_loop_static_total_iterations, trip_count);
295  }
296 #endif
297 
298  if (__kmp_env_consistency_check) {
299  /* tripcount overflow? */
300  if (trip_count == 0 && *pupper != *plower) {
301  __kmp_error_construct(kmp_i18n_msg_CnsIterationRangeTooLarge, ct_pdo,
302  loc);
303  }
304  }
305 
306  /* compute remaining parameters */
307  switch (schedtype) {
308  case kmp_sch_static: {
309  if (trip_count < nth) {
310  KMP_DEBUG_ASSERT(
311  __kmp_static == kmp_sch_static_greedy ||
312  __kmp_static ==
313  kmp_sch_static_balanced); // Unknown static scheduling type.
314  if (tid < trip_count) {
315  *pupper = *plower = *plower + tid * incr;
316  } else {
317  // set bounds so non-active threads execute no iterations
318  *plower = *pupper + (incr > 0 ? 1 : -1);
319  }
320  if (plastiter != NULL)
321  *plastiter = (tid == trip_count - 1);
322  } else {
323  KMP_DEBUG_ASSERT(nth != 0);
324  if (__kmp_static == kmp_sch_static_balanced) {
325  UT small_chunk = trip_count / nth;
326  UT extras = trip_count % nth;
327  *plower += incr * (tid * small_chunk + (tid < extras ? tid : extras));
328  *pupper = *plower + small_chunk * incr - (tid < extras ? 0 : incr);
329  if (plastiter != NULL)
330  *plastiter = (tid == nth - 1);
331  } else {
332  T big_chunk_inc_count =
333  (trip_count / nth + ((trip_count % nth) ? 1 : 0)) * incr;
334  T old_upper = *pupper;
335 
336  KMP_DEBUG_ASSERT(__kmp_static == kmp_sch_static_greedy);
337  // Unknown static scheduling type.
338 
339  *plower += tid * big_chunk_inc_count;
340  *pupper = *plower + big_chunk_inc_count - incr;
341  if (incr > 0) {
342  if (*pupper < *plower)
343  *pupper = traits_t<T>::max_value;
344  if (plastiter != NULL)
345  *plastiter = *plower <= old_upper && *pupper > old_upper - incr;
346  if (*pupper > old_upper)
347  *pupper = old_upper; // tracker C73258
348  } else {
349  if (*pupper > *plower)
350  *pupper = traits_t<T>::min_value;
351  if (plastiter != NULL)
352  *plastiter = *plower >= old_upper && *pupper < old_upper - incr;
353  if (*pupper < old_upper)
354  *pupper = old_upper; // tracker C73258
355  }
356  }
357  }
358  *pstride = trip_count;
359  break;
360  }
361  case kmp_sch_static_chunked: {
362  ST span;
363  UT nchunks;
364  KMP_DEBUG_ASSERT(chunk != 0);
365  if (chunk < 1)
366  chunk = 1;
367  else if ((UT)chunk > trip_count)
368  chunk = trip_count;
369  nchunks = (trip_count) / (UT)chunk + (trip_count % (UT)chunk ? 1 : 0);
370  span = chunk * incr;
371  if (nchunks < nth) {
372  *pstride = span * nchunks;
373  if (tid < nchunks) {
374  *plower = *plower + (span * tid);
375  *pupper = *plower + span - incr;
376  } else {
377  *plower = *pupper + (incr > 0 ? 1 : -1);
378  }
379  } else {
380  *pstride = span * nth;
381  *plower = *plower + (span * tid);
382  *pupper = *plower + span - incr;
383  }
384  if (plastiter != NULL)
385  *plastiter = (tid == (nchunks - 1) % nth);
386  break;
387  }
388  case kmp_sch_static_balanced_chunked: {
389  T old_upper = *pupper;
390  KMP_DEBUG_ASSERT(nth != 0);
391  // round up to make sure the chunk is enough to cover all iterations
392  UT span = (trip_count + nth - 1) / nth;
393 
394  // perform chunk adjustment
395  chunk = (span + chunk - 1) & ~(chunk - 1);
396 
397  span = chunk * incr;
398  *plower = *plower + (span * tid);
399  *pupper = *plower + span - incr;
400  if (incr > 0) {
401  if (*pupper > old_upper)
402  *pupper = old_upper;
403  } else if (*pupper < old_upper)
404  *pupper = old_upper;
405 
406  if (plastiter != NULL) {
407  KMP_DEBUG_ASSERT(chunk != 0);
408  *plastiter = (tid == ((trip_count - 1) / (UT)chunk));
409  }
410  break;
411  }
412  default:
413  KMP_ASSERT2(0, "__kmpc_for_static_init: unknown scheduling type");
414  break;
415  }
416 
417 #if USE_ITT_BUILD
418  // Report loop metadata
419  if (KMP_MASTER_TID(tid) && __itt_metadata_add_ptr &&
420  __kmp_forkjoin_frames_mode == 3 && th->th.th_teams_microtask == NULL &&
421  team->t.t_active_level == 1) {
422  kmp_uint64 cur_chunk = chunk;
423  check_loc(loc);
424  // Calculate chunk in case it was not specified; it is specified for
425  // kmp_sch_static_chunked
426  if (schedtype == kmp_sch_static) {
427  KMP_DEBUG_ASSERT(nth != 0);
428  cur_chunk = trip_count / nth + ((trip_count % nth) ? 1 : 0);
429  }
430  // 0 - "static" schedule
431  __kmp_itt_metadata_loop(loc, 0, trip_count, cur_chunk);
432  }
433 #endif
434 #ifdef KMP_DEBUG
435  {
436  char *buff;
437  // create format specifiers before the debug output
438  buff = __kmp_str_format("__kmpc_for_static_init: liter=%%d lower=%%%s "
439  "upper=%%%s stride = %%%s signed?<%s>\n",
440  traits_t<T>::spec, traits_t<T>::spec,
441  traits_t<ST>::spec, traits_t<T>::spec);
442  KD_TRACE(100, (buff, *plastiter, *plower, *pupper, *pstride));
443  __kmp_str_free(&buff);
444  }
445 #endif
446  KE_TRACE(10, ("__kmpc_for_static_init: T#%d return\n", global_tid));
447 
448 #if OMPT_SUPPORT && OMPT_OPTIONAL
449  if (ompt_enabled.ompt_callback_work) {
450  ompt_callbacks.ompt_callback(ompt_callback_work)(
451  ompt_work_type, ompt_scope_begin, &(team_info->parallel_data),
452  &(task_info->task_data), trip_count, codeptr);
453  }
454  if (ompt_enabled.ompt_callback_dispatch) {
455  ompt_dispatch_t dispatch_type;
456  ompt_data_t instance = ompt_data_none;
457  ompt_dispatch_chunk_t dispatch_chunk;
458  if (ompt_work_type == ompt_work_sections) {
459  dispatch_type = ompt_dispatch_section;
460  instance.ptr = codeptr;
461  } else {
462  OMPT_GET_DISPATCH_CHUNK(dispatch_chunk, *plower, *pupper, incr);
463  dispatch_type = (ompt_work_type == ompt_work_distribute)
464  ? ompt_dispatch_distribute_chunk
465  : ompt_dispatch_ws_loop_chunk;
466  instance.ptr = &dispatch_chunk;
467  }
468  ompt_callbacks.ompt_callback(ompt_callback_dispatch)(
469  &(team_info->parallel_data), &(task_info->task_data), dispatch_type,
470  instance);
471  }
472 #endif
473 
474  KMP_STATS_LOOP_END(OMP_loop_static_iterations);
475  return;
476 }
477 
478 template <typename T>
479 static void __kmp_dist_for_static_init(ident_t *loc, kmp_int32 gtid,
480  kmp_int32 schedule, kmp_int32 *plastiter,
481  T *plower, T *pupper, T *pupperDist,
482  typename traits_t<T>::signed_t *pstride,
483  typename traits_t<T>::signed_t incr,
484  typename traits_t<T>::signed_t chunk
485 #if OMPT_SUPPORT && OMPT_OPTIONAL
486  ,
487  void *codeptr
488 #endif
489 ) {
490  KMP_COUNT_BLOCK(OMP_DISTRIBUTE);
491  KMP_PUSH_PARTITIONED_TIMER(OMP_distribute);
492  KMP_PUSH_PARTITIONED_TIMER(OMP_distribute_scheduling);
493  typedef typename traits_t<T>::unsigned_t UT;
494  typedef typename traits_t<T>::signed_t ST;
495  kmp_uint32 tid;
496  kmp_uint32 nth;
497  kmp_uint32 team_id;
498  kmp_uint32 nteams;
499  UT trip_count;
500  kmp_team_t *team;
501  kmp_info_t *th;
502 
503  KMP_DEBUG_ASSERT(plastiter && plower && pupper && pupperDist && pstride);
504  KE_TRACE(10, ("__kmpc_dist_for_static_init called (%d)\n", gtid));
505  __kmp_assert_valid_gtid(gtid);
506 #ifdef KMP_DEBUG
507  {
508  char *buff;
509  // create format specifiers before the debug output
510  buff = __kmp_str_format(
511  "__kmpc_dist_for_static_init: T#%%d schedLoop=%%d liter=%%d "
512  "iter=(%%%s, %%%s, %%%s) chunk=%%%s signed?<%s>\n",
513  traits_t<T>::spec, traits_t<T>::spec, traits_t<ST>::spec,
514  traits_t<ST>::spec, traits_t<T>::spec);
515  KD_TRACE(100,
516  (buff, gtid, schedule, *plastiter, *plower, *pupper, incr, chunk));
517  __kmp_str_free(&buff);
518  }
519 #endif
520 
521  if (__kmp_env_consistency_check) {
522  __kmp_push_workshare(gtid, ct_pdo, loc);
523  if (incr == 0) {
524  __kmp_error_construct(kmp_i18n_msg_CnsLoopIncrZeroProhibited, ct_pdo,
525  loc);
526  }
527  if (incr > 0 ? (*pupper < *plower) : (*plower < *pupper)) {
528  // The loop is illegal.
529  // Some zero-trip loops maintained by compiler, e.g.:
530  // for(i=10;i<0;++i) // lower >= upper - run-time check
531  // for(i=0;i>10;--i) // lower <= upper - run-time check
532  // for(i=0;i>10;++i) // incr > 0 - compile-time check
533  // for(i=10;i<0;--i) // incr < 0 - compile-time check
534  // Compiler does not check the following illegal loops:
535  // for(i=0;i<10;i+=incr) // where incr<0
536  // for(i=10;i>0;i-=incr) // where incr<0
537  __kmp_error_construct(kmp_i18n_msg_CnsLoopIncrIllegal, ct_pdo, loc);
538  }
539  }
540  tid = __kmp_tid_from_gtid(gtid);
541  th = __kmp_threads[gtid];
542  nth = th->th.th_team_nproc;
543  team = th->th.th_team;
544  KMP_DEBUG_ASSERT(th->th.th_teams_microtask); // we are in the teams construct
545  nteams = th->th.th_teams_size.nteams;
546  team_id = team->t.t_master_tid;
547  KMP_DEBUG_ASSERT(nteams == (kmp_uint32)team->t.t_parent->t.t_nproc);
548 
549  // compute global trip count
550  if (incr == 1) {
551  trip_count = *pupper - *plower + 1;
552  } else if (incr == -1) {
553  trip_count = *plower - *pupper + 1;
554  } else if (incr > 0) {
555  // upper-lower can exceed the limit of signed type
556  trip_count = (UT)(*pupper - *plower) / incr + 1;
557  } else {
558  KMP_DEBUG_ASSERT(incr != 0);
559  trip_count = (UT)(*plower - *pupper) / (-incr) + 1;
560  }
561 
562  *pstride = *pupper - *plower; // just in case (can be unused)
563  if (trip_count <= nteams) {
564  KMP_DEBUG_ASSERT(
565  __kmp_static == kmp_sch_static_greedy ||
566  __kmp_static ==
567  kmp_sch_static_balanced); // Unknown static scheduling type.
568  // only primary threads of some teams get single iteration, other threads
569  // get nothing
570  if (team_id < trip_count && tid == 0) {
571  *pupper = *pupperDist = *plower = *plower + team_id * incr;
572  } else {
573  *pupperDist = *pupper;
574  *plower = *pupper + incr; // compiler should skip loop body
575  }
576  if (plastiter != NULL)
577  *plastiter = (tid == 0 && team_id == trip_count - 1);
578  } else {
579  // Get the team's chunk first (each team gets at most one chunk)
580  KMP_DEBUG_ASSERT(nteams != 0);
581  if (__kmp_static == kmp_sch_static_balanced) {
582  UT chunkD = trip_count / nteams;
583  UT extras = trip_count % nteams;
584  *plower +=
585  incr * (team_id * chunkD + (team_id < extras ? team_id : extras));
586  *pupperDist = *plower + chunkD * incr - (team_id < extras ? 0 : incr);
587  if (plastiter != NULL)
588  *plastiter = (team_id == nteams - 1);
589  } else {
590  T chunk_inc_count =
591  (trip_count / nteams + ((trip_count % nteams) ? 1 : 0)) * incr;
592  T upper = *pupper;
593  KMP_DEBUG_ASSERT(__kmp_static == kmp_sch_static_greedy);
594  // Unknown static scheduling type.
595  *plower += team_id * chunk_inc_count;
596  *pupperDist = *plower + chunk_inc_count - incr;
597  // Check/correct bounds if needed
598  if (incr > 0) {
599  if (*pupperDist < *plower)
600  *pupperDist = traits_t<T>::max_value;
601  if (plastiter != NULL)
602  *plastiter = *plower <= upper && *pupperDist > upper - incr;
603  if (*pupperDist > upper)
604  *pupperDist = upper; // tracker C73258
605  if (*plower > *pupperDist) {
606  *pupper = *pupperDist; // no iterations available for the team
607  goto end;
608  }
609  } else {
610  if (*pupperDist > *plower)
611  *pupperDist = traits_t<T>::min_value;
612  if (plastiter != NULL)
613  *plastiter = *plower >= upper && *pupperDist < upper - incr;
614  if (*pupperDist < upper)
615  *pupperDist = upper; // tracker C73258
616  if (*plower < *pupperDist) {
617  *pupper = *pupperDist; // no iterations available for the team
618  goto end;
619  }
620  }
621  }
622  // Get the parallel loop chunk now (for thread)
623  // compute trip count for team's chunk
624  if (incr == 1) {
625  trip_count = *pupperDist - *plower + 1;
626  } else if (incr == -1) {
627  trip_count = *plower - *pupperDist + 1;
628  } else if (incr > 1) {
629  // upper-lower can exceed the limit of signed type
630  trip_count = (UT)(*pupperDist - *plower) / incr + 1;
631  } else {
632  KMP_DEBUG_ASSERT(incr != 0);
633  trip_count = (UT)(*plower - *pupperDist) / (-incr) + 1;
634  }
635  KMP_DEBUG_ASSERT(trip_count);
636  switch (schedule) {
637  case kmp_sch_static: {
638  if (trip_count <= nth) {
639  KMP_DEBUG_ASSERT(
640  __kmp_static == kmp_sch_static_greedy ||
641  __kmp_static ==
642  kmp_sch_static_balanced); // Unknown static scheduling type.
643  if (tid < trip_count)
644  *pupper = *plower = *plower + tid * incr;
645  else
646  *plower = *pupper + incr; // no iterations available
647  if (plastiter != NULL)
648  if (*plastiter != 0 && !(tid == trip_count - 1))
649  *plastiter = 0;
650  } else {
651  KMP_DEBUG_ASSERT(nth != 0);
652  if (__kmp_static == kmp_sch_static_balanced) {
653  UT chunkL = trip_count / nth;
654  UT extras = trip_count % nth;
655  *plower += incr * (tid * chunkL + (tid < extras ? tid : extras));
656  *pupper = *plower + chunkL * incr - (tid < extras ? 0 : incr);
657  if (plastiter != NULL)
658  if (*plastiter != 0 && !(tid == nth - 1))
659  *plastiter = 0;
660  } else {
661  T chunk_inc_count =
662  (trip_count / nth + ((trip_count % nth) ? 1 : 0)) * incr;
663  T upper = *pupperDist;
664  KMP_DEBUG_ASSERT(__kmp_static == kmp_sch_static_greedy);
665  // Unknown static scheduling type.
666  *plower += tid * chunk_inc_count;
667  *pupper = *plower + chunk_inc_count - incr;
668  if (incr > 0) {
669  if (*pupper < *plower)
670  *pupper = traits_t<T>::max_value;
671  if (plastiter != NULL)
672  if (*plastiter != 0 &&
673  !(*plower <= upper && *pupper > upper - incr))
674  *plastiter = 0;
675  if (*pupper > upper)
676  *pupper = upper; // tracker C73258
677  } else {
678  if (*pupper > *plower)
679  *pupper = traits_t<T>::min_value;
680  if (plastiter != NULL)
681  if (*plastiter != 0 &&
682  !(*plower >= upper && *pupper < upper - incr))
683  *plastiter = 0;
684  if (*pupper < upper)
685  *pupper = upper; // tracker C73258
686  }
687  }
688  }
689  break;
690  }
691  case kmp_sch_static_chunked: {
692  ST span;
693  if (chunk < 1)
694  chunk = 1;
695  span = chunk * incr;
696  *pstride = span * nth;
697  *plower = *plower + (span * tid);
698  *pupper = *plower + span - incr;
699  if (plastiter != NULL) {
700  KMP_DEBUG_ASSERT(chunk != 0);
701  if (*plastiter != 0 && !(tid == ((trip_count - 1) / (UT)chunk) % nth))
702  *plastiter = 0;
703  }
704  break;
705  }
706  default:
707  KMP_ASSERT2(0,
708  "__kmpc_dist_for_static_init: unknown loop scheduling type");
709  break;
710  }
711  }
712 end:;
713 #ifdef KMP_DEBUG
714  {
715  char *buff;
716  // create format specifiers before the debug output
717  buff = __kmp_str_format(
718  "__kmpc_dist_for_static_init: last=%%d lo=%%%s up=%%%s upDist=%%%s "
719  "stride=%%%s signed?<%s>\n",
720  traits_t<T>::spec, traits_t<T>::spec, traits_t<T>::spec,
721  traits_t<ST>::spec, traits_t<T>::spec);
722  KD_TRACE(100, (buff, *plastiter, *plower, *pupper, *pupperDist, *pstride));
723  __kmp_str_free(&buff);
724  }
725 #endif
726  KE_TRACE(10, ("__kmpc_dist_for_static_init: T#%d return\n", gtid));
727 #if OMPT_SUPPORT && OMPT_OPTIONAL
728  if (ompt_enabled.ompt_callback_work || ompt_enabled.ompt_callback_dispatch) {
729  ompt_team_info_t *team_info = __ompt_get_teaminfo(0, NULL);
730  ompt_task_info_t *task_info = __ompt_get_task_info_object(0);
731  if (ompt_enabled.ompt_callback_work) {
732  ompt_callbacks.ompt_callback(ompt_callback_work)(
733  ompt_work_distribute, ompt_scope_begin, &(team_info->parallel_data),
734  &(task_info->task_data), 0, codeptr);
735  }
736  if (ompt_enabled.ompt_callback_dispatch) {
737  ompt_data_t instance = ompt_data_none;
738  ompt_dispatch_chunk_t dispatch_chunk;
739  OMPT_GET_DISPATCH_CHUNK(dispatch_chunk, *plower, *pupperDist, incr);
740  instance.ptr = &dispatch_chunk;
741  ompt_callbacks.ompt_callback(ompt_callback_dispatch)(
742  &(team_info->parallel_data), &(task_info->task_data),
743  ompt_dispatch_distribute_chunk, instance);
744  }
745  }
746 #endif // OMPT_SUPPORT && OMPT_OPTIONAL
747  KMP_STATS_LOOP_END(OMP_distribute_iterations);
748  return;
749 }
750 
751 template <typename T>
752 static void __kmp_team_static_init(ident_t *loc, kmp_int32 gtid,
753  kmp_int32 *p_last, T *p_lb, T *p_ub,
754  typename traits_t<T>::signed_t *p_st,
755  typename traits_t<T>::signed_t incr,
756  typename traits_t<T>::signed_t chunk) {
757  // The routine returns the first chunk distributed to the team and
758  // stride for next chunks calculation.
759  // Last iteration flag set for the team that will execute
760  // the last iteration of the loop.
761  // The routine is called for dist_schedule(static,chunk) only.
762  typedef typename traits_t<T>::unsigned_t UT;
763  typedef typename traits_t<T>::signed_t ST;
764  kmp_uint32 team_id;
765  kmp_uint32 nteams;
766  UT trip_count;
767  T lower;
768  T upper;
769  ST span;
770  kmp_team_t *team;
771  kmp_info_t *th;
772 
773  KMP_DEBUG_ASSERT(p_last && p_lb && p_ub && p_st);
774  KE_TRACE(10, ("__kmp_team_static_init called (%d)\n", gtid));
775  __kmp_assert_valid_gtid(gtid);
776 #ifdef KMP_DEBUG
777  {
778  char *buff;
779  // create format specifiers before the debug output
780  buff = __kmp_str_format("__kmp_team_static_init enter: T#%%d liter=%%d "
781  "iter=(%%%s, %%%s, %%%s) chunk %%%s; signed?<%s>\n",
782  traits_t<T>::spec, traits_t<T>::spec,
783  traits_t<ST>::spec, traits_t<ST>::spec,
784  traits_t<T>::spec);
785  KD_TRACE(100, (buff, gtid, *p_last, *p_lb, *p_ub, *p_st, chunk));
786  __kmp_str_free(&buff);
787  }
788 #endif
789 
790  lower = *p_lb;
791  upper = *p_ub;
792  if (__kmp_env_consistency_check) {
793  if (incr == 0) {
794  __kmp_error_construct(kmp_i18n_msg_CnsLoopIncrZeroProhibited, ct_pdo,
795  loc);
796  }
797  if (incr > 0 ? (upper < lower) : (lower < upper)) {
798  // The loop is illegal.
799  // Some zero-trip loops maintained by compiler, e.g.:
800  // for(i=10;i<0;++i) // lower >= upper - run-time check
801  // for(i=0;i>10;--i) // lower <= upper - run-time check
802  // for(i=0;i>10;++i) // incr > 0 - compile-time check
803  // for(i=10;i<0;--i) // incr < 0 - compile-time check
804  // Compiler does not check the following illegal loops:
805  // for(i=0;i<10;i+=incr) // where incr<0
806  // for(i=10;i>0;i-=incr) // where incr<0
807  __kmp_error_construct(kmp_i18n_msg_CnsLoopIncrIllegal, ct_pdo, loc);
808  }
809  }
810  th = __kmp_threads[gtid];
811  team = th->th.th_team;
812  KMP_DEBUG_ASSERT(th->th.th_teams_microtask); // we are in the teams construct
813  nteams = th->th.th_teams_size.nteams;
814  team_id = team->t.t_master_tid;
815  KMP_DEBUG_ASSERT(nteams == (kmp_uint32)team->t.t_parent->t.t_nproc);
816 
817  // compute trip count
818  if (incr == 1) {
819  trip_count = upper - lower + 1;
820  } else if (incr == -1) {
821  trip_count = lower - upper + 1;
822  } else if (incr > 0) {
823  // upper-lower can exceed the limit of signed type
824  trip_count = (UT)(upper - lower) / incr + 1;
825  } else {
826  KMP_DEBUG_ASSERT(incr != 0);
827  trip_count = (UT)(lower - upper) / (-incr) + 1;
828  }
829  if (chunk < 1)
830  chunk = 1;
831  span = chunk * incr;
832  *p_st = span * nteams;
833  *p_lb = lower + (span * team_id);
834  *p_ub = *p_lb + span - incr;
835  if (p_last != NULL) {
836  KMP_DEBUG_ASSERT(chunk != 0);
837  *p_last = (team_id == ((trip_count - 1) / (UT)chunk) % nteams);
838  }
839  // Correct upper bound if needed
840  if (incr > 0) {
841  if (*p_ub < *p_lb) // overflow?
842  *p_ub = traits_t<T>::max_value;
843  if (*p_ub > upper)
844  *p_ub = upper; // tracker C73258
845  } else { // incr < 0
846  if (*p_ub > *p_lb)
847  *p_ub = traits_t<T>::min_value;
848  if (*p_ub < upper)
849  *p_ub = upper; // tracker C73258
850  }
851 #ifdef KMP_DEBUG
852  {
853  char *buff;
854  // create format specifiers before the debug output
855  buff =
856  __kmp_str_format("__kmp_team_static_init exit: T#%%d team%%u liter=%%d "
857  "iter=(%%%s, %%%s, %%%s) chunk %%%s\n",
858  traits_t<T>::spec, traits_t<T>::spec,
859  traits_t<ST>::spec, traits_t<ST>::spec);
860  KD_TRACE(100, (buff, gtid, team_id, *p_last, *p_lb, *p_ub, *p_st, chunk));
861  __kmp_str_free(&buff);
862  }
863 #endif
864 }
865 
866 //------------------------------------------------------------------------------
867 extern "C" {
889 void __kmpc_for_static_init_4(ident_t *loc, kmp_int32 gtid, kmp_int32 schedtype,
890  kmp_int32 *plastiter, kmp_int32 *plower,
891  kmp_int32 *pupper, kmp_int32 *pstride,
892  kmp_int32 incr, kmp_int32 chunk) {
893  __kmp_for_static_init<kmp_int32>(loc, gtid, schedtype, plastiter, plower,
894  pupper, pstride, incr, chunk
895 #if OMPT_SUPPORT && OMPT_OPTIONAL
896  ,
897  OMPT_GET_RETURN_ADDRESS(0)
898 #endif
899  );
900 }
901 
905 void __kmpc_for_static_init_4u(ident_t *loc, kmp_int32 gtid,
906  kmp_int32 schedtype, kmp_int32 *plastiter,
907  kmp_uint32 *plower, kmp_uint32 *pupper,
908  kmp_int32 *pstride, kmp_int32 incr,
909  kmp_int32 chunk) {
910  __kmp_for_static_init<kmp_uint32>(loc, gtid, schedtype, plastiter, plower,
911  pupper, pstride, incr, chunk
912 #if OMPT_SUPPORT && OMPT_OPTIONAL
913  ,
914  OMPT_GET_RETURN_ADDRESS(0)
915 #endif
916  );
917 }
918 
922 void __kmpc_for_static_init_8(ident_t *loc, kmp_int32 gtid, kmp_int32 schedtype,
923  kmp_int32 *plastiter, kmp_int64 *plower,
924  kmp_int64 *pupper, kmp_int64 *pstride,
925  kmp_int64 incr, kmp_int64 chunk) {
926  __kmp_for_static_init<kmp_int64>(loc, gtid, schedtype, plastiter, plower,
927  pupper, pstride, incr, chunk
928 #if OMPT_SUPPORT && OMPT_OPTIONAL
929  ,
930  OMPT_GET_RETURN_ADDRESS(0)
931 #endif
932  );
933 }
934 
938 void __kmpc_for_static_init_8u(ident_t *loc, kmp_int32 gtid,
939  kmp_int32 schedtype, kmp_int32 *plastiter,
940  kmp_uint64 *plower, kmp_uint64 *pupper,
941  kmp_int64 *pstride, kmp_int64 incr,
942  kmp_int64 chunk) {
943  __kmp_for_static_init<kmp_uint64>(loc, gtid, schedtype, plastiter, plower,
944  pupper, pstride, incr, chunk
945 #if OMPT_SUPPORT && OMPT_OPTIONAL
946  ,
947  OMPT_GET_RETURN_ADDRESS(0)
948 #endif
949  );
950 }
955 #if OMPT_SUPPORT && OMPT_OPTIONAL
956 #define OMPT_CODEPTR_ARG , OMPT_GET_RETURN_ADDRESS(0)
957 #else
958 #define OMPT_CODEPTR_ARG
959 #endif
960 
983 void __kmpc_dist_for_static_init_4(ident_t *loc, kmp_int32 gtid,
984  kmp_int32 schedule, kmp_int32 *plastiter,
985  kmp_int32 *plower, kmp_int32 *pupper,
986  kmp_int32 *pupperD, kmp_int32 *pstride,
987  kmp_int32 incr, kmp_int32 chunk) {
988  __kmp_dist_for_static_init<kmp_int32>(loc, gtid, schedule, plastiter, plower,
989  pupper, pupperD, pstride, incr,
990  chunk OMPT_CODEPTR_ARG);
991 }
992 
996 void __kmpc_dist_for_static_init_4u(ident_t *loc, kmp_int32 gtid,
997  kmp_int32 schedule, kmp_int32 *plastiter,
998  kmp_uint32 *plower, kmp_uint32 *pupper,
999  kmp_uint32 *pupperD, kmp_int32 *pstride,
1000  kmp_int32 incr, kmp_int32 chunk) {
1001  __kmp_dist_for_static_init<kmp_uint32>(loc, gtid, schedule, plastiter, plower,
1002  pupper, pupperD, pstride, incr,
1003  chunk OMPT_CODEPTR_ARG);
1004 }
1005 
1009 void __kmpc_dist_for_static_init_8(ident_t *loc, kmp_int32 gtid,
1010  kmp_int32 schedule, kmp_int32 *plastiter,
1011  kmp_int64 *plower, kmp_int64 *pupper,
1012  kmp_int64 *pupperD, kmp_int64 *pstride,
1013  kmp_int64 incr, kmp_int64 chunk) {
1014  __kmp_dist_for_static_init<kmp_int64>(loc, gtid, schedule, plastiter, plower,
1015  pupper, pupperD, pstride, incr,
1016  chunk OMPT_CODEPTR_ARG);
1017 }
1018 
1022 void __kmpc_dist_for_static_init_8u(ident_t *loc, kmp_int32 gtid,
1023  kmp_int32 schedule, kmp_int32 *plastiter,
1024  kmp_uint64 *plower, kmp_uint64 *pupper,
1025  kmp_uint64 *pupperD, kmp_int64 *pstride,
1026  kmp_int64 incr, kmp_int64 chunk) {
1027  __kmp_dist_for_static_init<kmp_uint64>(loc, gtid, schedule, plastiter, plower,
1028  pupper, pupperD, pstride, incr,
1029  chunk OMPT_CODEPTR_ARG);
1030 }
1035 //------------------------------------------------------------------------------
1036 // Auxiliary routines for Distribute Parallel Loop construct implementation
1037 // Transfer call to template< type T >
1038 // __kmp_team_static_init( ident_t *loc, int gtid,
1039 // int *p_last, T *lb, T *ub, ST *st, ST incr, ST chunk )
1040 
1061 void __kmpc_team_static_init_4(ident_t *loc, kmp_int32 gtid, kmp_int32 *p_last,
1062  kmp_int32 *p_lb, kmp_int32 *p_ub,
1063  kmp_int32 *p_st, kmp_int32 incr,
1064  kmp_int32 chunk) {
1065  KMP_DEBUG_ASSERT(__kmp_init_serial);
1066  __kmp_team_static_init<kmp_int32>(loc, gtid, p_last, p_lb, p_ub, p_st, incr,
1067  chunk);
1068 }
1069 
1073 void __kmpc_team_static_init_4u(ident_t *loc, kmp_int32 gtid, kmp_int32 *p_last,
1074  kmp_uint32 *p_lb, kmp_uint32 *p_ub,
1075  kmp_int32 *p_st, kmp_int32 incr,
1076  kmp_int32 chunk) {
1077  KMP_DEBUG_ASSERT(__kmp_init_serial);
1078  __kmp_team_static_init<kmp_uint32>(loc, gtid, p_last, p_lb, p_ub, p_st, incr,
1079  chunk);
1080 }
1081 
1085 void __kmpc_team_static_init_8(ident_t *loc, kmp_int32 gtid, kmp_int32 *p_last,
1086  kmp_int64 *p_lb, kmp_int64 *p_ub,
1087  kmp_int64 *p_st, kmp_int64 incr,
1088  kmp_int64 chunk) {
1089  KMP_DEBUG_ASSERT(__kmp_init_serial);
1090  __kmp_team_static_init<kmp_int64>(loc, gtid, p_last, p_lb, p_ub, p_st, incr,
1091  chunk);
1092 }
1093 
1097 void __kmpc_team_static_init_8u(ident_t *loc, kmp_int32 gtid, kmp_int32 *p_last,
1098  kmp_uint64 *p_lb, kmp_uint64 *p_ub,
1099  kmp_int64 *p_st, kmp_int64 incr,
1100  kmp_int64 chunk) {
1101  KMP_DEBUG_ASSERT(__kmp_init_serial);
1102  __kmp_team_static_init<kmp_uint64>(loc, gtid, p_last, p_lb, p_ub, p_st, incr,
1103  chunk);
1104 }
1109 } // extern "C"
@ KMP_IDENT_KMPC
Definition: kmp.h:209
@ KMP_IDENT_WORK_LOOP
Definition: kmp.h:227
@ KMP_IDENT_WORK_SECTIONS
Definition: kmp.h:229
@ KMP_IDENT_WORK_DISTRIBUTE
Definition: kmp.h:231
#define KMP_COUNT_VALUE(name, value)
Adds value to specified timer (name).
Definition: kmp_stats.h:898
#define KMP_COUNT_BLOCK(name)
Increments specified counter (name).
Definition: kmp_stats.h:911
void __kmpc_for_static_init_8(ident_t *loc, kmp_int32 gtid, kmp_int32 schedtype, kmp_int32 *plastiter, kmp_int64 *plower, kmp_int64 *pupper, kmp_int64 *pstride, kmp_int64 incr, kmp_int64 chunk)
Definition: kmp_sched.cpp:922
void __kmpc_dist_for_static_init_8(ident_t *loc, kmp_int32 gtid, kmp_int32 schedule, kmp_int32 *plastiter, kmp_int64 *plower, kmp_int64 *pupper, kmp_int64 *pupperD, kmp_int64 *pstride, kmp_int64 incr, kmp_int64 chunk)
Definition: kmp_sched.cpp:1009
void __kmpc_for_static_init_4u(ident_t *loc, kmp_int32 gtid, kmp_int32 schedtype, kmp_int32 *plastiter, kmp_uint32 *plower, kmp_uint32 *pupper, kmp_int32 *pstride, kmp_int32 incr, kmp_int32 chunk)
Definition: kmp_sched.cpp:905
void __kmpc_team_static_init_8(ident_t *loc, kmp_int32 gtid, kmp_int32 *p_last, kmp_int64 *p_lb, kmp_int64 *p_ub, kmp_int64 *p_st, kmp_int64 incr, kmp_int64 chunk)
Definition: kmp_sched.cpp:1085
void __kmpc_dist_for_static_init_4u(ident_t *loc, kmp_int32 gtid, kmp_int32 schedule, kmp_int32 *plastiter, kmp_uint32 *plower, kmp_uint32 *pupper, kmp_uint32 *pupperD, kmp_int32 *pstride, kmp_int32 incr, kmp_int32 chunk)
Definition: kmp_sched.cpp:996
void __kmpc_team_static_init_8u(ident_t *loc, kmp_int32 gtid, kmp_int32 *p_last, kmp_uint64 *p_lb, kmp_uint64 *p_ub, kmp_int64 *p_st, kmp_int64 incr, kmp_int64 chunk)
Definition: kmp_sched.cpp:1097
void __kmpc_for_static_init_8u(ident_t *loc, kmp_int32 gtid, kmp_int32 schedtype, kmp_int32 *plastiter, kmp_uint64 *plower, kmp_uint64 *pupper, kmp_int64 *pstride, kmp_int64 incr, kmp_int64 chunk)
Definition: kmp_sched.cpp:938
void __kmpc_team_static_init_4u(ident_t *loc, kmp_int32 gtid, kmp_int32 *p_last, kmp_uint32 *p_lb, kmp_uint32 *p_ub, kmp_int32 *p_st, kmp_int32 incr, kmp_int32 chunk)
Definition: kmp_sched.cpp:1073
void __kmpc_dist_for_static_init_4(ident_t *loc, kmp_int32 gtid, kmp_int32 schedule, kmp_int32 *plastiter, kmp_int32 *plower, kmp_int32 *pupper, kmp_int32 *pupperD, kmp_int32 *pstride, kmp_int32 incr, kmp_int32 chunk)
Definition: kmp_sched.cpp:983
void __kmpc_for_static_init_4(ident_t *loc, kmp_int32 gtid, kmp_int32 schedtype, kmp_int32 *plastiter, kmp_int32 *plower, kmp_int32 *pupper, kmp_int32 *pstride, kmp_int32 incr, kmp_int32 chunk)
Definition: kmp_sched.cpp:889
void __kmpc_team_static_init_4(ident_t *loc, kmp_int32 gtid, kmp_int32 *p_last, kmp_int32 *p_lb, kmp_int32 *p_ub, kmp_int32 *p_st, kmp_int32 incr, kmp_int32 chunk)
Definition: kmp_sched.cpp:1061
void __kmpc_dist_for_static_init_8u(ident_t *loc, kmp_int32 gtid, kmp_int32 schedule, kmp_int32 *plastiter, kmp_uint64 *plower, kmp_uint64 *pupper, kmp_uint64 *pupperD, kmp_int64 *pstride, kmp_int64 incr, kmp_int64 chunk)
Definition: kmp_sched.cpp:1022
@ kmp_sch_static
Definition: kmp.h:373
@ kmp_distribute_static
Definition: kmp.h:409
@ kmp_ord_upper
Definition: kmp.h:405
Definition: kmp.h:247
char const * psource
Definition: kmp.h:257
kmp_int32 flags
Definition: kmp.h:249