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Commit | Line | Data |
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cbe34bb5 | 1 | /* Copyright (C) 2005-2017 Free Software Foundation, Inc. |
953ff289 DN |
2 | Contributed by Richard Henderson <rth@redhat.com>. |
3 | ||
f1f3453e TS |
4 | This file is part of the GNU Offloading and Multi Processing Library |
5 | (libgomp). | |
953ff289 DN |
6 | |
7 | Libgomp is free software; you can redistribute it and/or modify it | |
748086b7 JJ |
8 | under the terms of the GNU General Public License as published by |
9 | the Free Software Foundation; either version 3, or (at your option) | |
10 | any later version. | |
953ff289 DN |
11 | |
12 | Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY | |
13 | WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS | |
748086b7 | 14 | FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
953ff289 DN |
15 | more details. |
16 | ||
748086b7 JJ |
17 | Under Section 7 of GPL version 3, you are granted additional |
18 | permissions described in the GCC Runtime Library Exception, version | |
19 | 3.1, as published by the Free Software Foundation. | |
953ff289 | 20 | |
748086b7 JJ |
21 | You should have received a copy of the GNU General Public License and |
22 | a copy of the GCC Runtime Library Exception along with this program; | |
23 | see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
24 | <http://www.gnu.org/licenses/>. */ | |
953ff289 | 25 | |
630e3c3a AM |
26 | /* This file defines the OpenMP internal control variables and arranges |
27 | for them to be initialized from environment variables at startup. */ | |
953ff289 DN |
28 | |
29 | #include "libgomp.h" | |
630e3c3a AM |
30 | #include "gomp-constants.h" |
31 | #include <limits.h> | |
32 | #ifndef LIBGOMP_OFFLOADED_ONLY | |
953ff289 | 33 | #include "libgomp_f.h" |
41dbbb37 | 34 | #include "oacc-int.h" |
89b3e3cd | 35 | #include <ctype.h> |
953ff289 | 36 | #include <stdlib.h> |
acf0174b JJ |
37 | #include <stdio.h> |
38 | #ifdef HAVE_INTTYPES_H | |
39 | # include <inttypes.h> /* For PRIu64. */ | |
40 | #endif | |
a1b25e49 PG |
41 | #ifdef STRING_WITH_STRINGS |
42 | # include <string.h> | |
43 | # include <strings.h> | |
44 | #else | |
45 | # ifdef HAVE_STRING_H | |
46 | # include <string.h> | |
47 | # else | |
48 | # ifdef HAVE_STRINGS_H | |
49 | # include <strings.h> | |
50 | # endif | |
51 | # endif | |
52 | #endif | |
d0d1b24d | 53 | #include <errno.h> |
953ff289 | 54 | |
976e44e3 JJ |
55 | #ifndef HAVE_STRTOULL |
56 | # define strtoull(ptr, eptr, base) strtoul (ptr, eptr, base) | |
57 | #endif | |
630e3c3a AM |
58 | #endif /* LIBGOMP_OFFLOADED_ONLY */ |
59 | ||
60 | struct gomp_task_icv gomp_global_icv = { | |
61 | .nthreads_var = 1, | |
62 | .thread_limit_var = UINT_MAX, | |
63 | .run_sched_var = GFS_DYNAMIC, | |
64 | .run_sched_chunk_size = 1, | |
65 | .default_device_var = 0, | |
66 | .dyn_var = false, | |
67 | .nest_var = false, | |
68 | .bind_var = omp_proc_bind_false, | |
69 | .target_data = NULL | |
70 | }; | |
71 | ||
72 | unsigned long gomp_max_active_levels_var = INT_MAX; | |
73 | bool gomp_cancel_var = false; | |
74 | int gomp_max_task_priority_var = 0; | |
75 | #ifndef HAVE_SYNC_BUILTINS | |
76 | gomp_mutex_t gomp_managed_threads_lock; | |
77 | #endif | |
78 | unsigned long gomp_available_cpus = 1, gomp_managed_threads = 1; | |
79 | unsigned long long gomp_spin_count_var, gomp_throttled_spin_count_var; | |
80 | unsigned long *gomp_nthreads_var_list, gomp_nthreads_var_list_len; | |
81 | char *gomp_bind_var_list; | |
82 | unsigned long gomp_bind_var_list_len; | |
83 | void **gomp_places_list; | |
84 | unsigned long gomp_places_list_len; | |
85 | int gomp_debug_var; | |
86 | unsigned int gomp_num_teams_var; | |
87 | char *goacc_device_type; | |
88 | int goacc_device_num; | |
89 | ||
90 | #ifndef LIBGOMP_OFFLOADED_ONLY | |
953ff289 | 91 | |
953ff289 DN |
92 | /* Parse the OMP_SCHEDULE environment variable. */ |
93 | ||
94 | static void | |
95 | parse_schedule (void) | |
96 | { | |
97 | char *env, *end; | |
6acf0b38 | 98 | unsigned long value; |
953ff289 DN |
99 | |
100 | env = getenv ("OMP_SCHEDULE"); | |
101 | if (env == NULL) | |
102 | return; | |
103 | ||
89b3e3cd JJ |
104 | while (isspace ((unsigned char) *env)) |
105 | ++env; | |
106 | if (strncasecmp (env, "static", 6) == 0) | |
953ff289 | 107 | { |
a68ab351 | 108 | gomp_global_icv.run_sched_var = GFS_STATIC; |
953ff289 DN |
109 | env += 6; |
110 | } | |
89b3e3cd | 111 | else if (strncasecmp (env, "dynamic", 7) == 0) |
953ff289 | 112 | { |
a68ab351 | 113 | gomp_global_icv.run_sched_var = GFS_DYNAMIC; |
953ff289 DN |
114 | env += 7; |
115 | } | |
89b3e3cd | 116 | else if (strncasecmp (env, "guided", 6) == 0) |
953ff289 | 117 | { |
a68ab351 | 118 | gomp_global_icv.run_sched_var = GFS_GUIDED; |
953ff289 DN |
119 | env += 6; |
120 | } | |
a68ab351 JJ |
121 | else if (strncasecmp (env, "auto", 4) == 0) |
122 | { | |
123 | gomp_global_icv.run_sched_var = GFS_AUTO; | |
124 | env += 4; | |
125 | } | |
953ff289 DN |
126 | else |
127 | goto unknown; | |
128 | ||
89b3e3cd JJ |
129 | while (isspace ((unsigned char) *env)) |
130 | ++env; | |
953ff289 | 131 | if (*env == '\0') |
fb79f500 | 132 | { |
d9a6bd32 | 133 | gomp_global_icv.run_sched_chunk_size |
fb79f500 JJ |
134 | = gomp_global_icv.run_sched_var != GFS_STATIC; |
135 | return; | |
136 | } | |
89b3e3cd | 137 | if (*env++ != ',') |
953ff289 | 138 | goto unknown; |
89b3e3cd JJ |
139 | while (isspace ((unsigned char) *env)) |
140 | ++env; | |
953ff289 | 141 | if (*env == '\0') |
953ff289 DN |
142 | goto invalid; |
143 | ||
6acf0b38 UB |
144 | errno = 0; |
145 | value = strtoul (env, &end, 10); | |
146 | if (errno) | |
147 | goto invalid; | |
148 | ||
89b3e3cd JJ |
149 | while (isspace ((unsigned char) *end)) |
150 | ++end; | |
953ff289 DN |
151 | if (*end != '\0') |
152 | goto invalid; | |
6acf0b38 | 153 | |
a68ab351 JJ |
154 | if ((int)value != value) |
155 | goto invalid; | |
156 | ||
fb79f500 JJ |
157 | if (value == 0 && gomp_global_icv.run_sched_var != GFS_STATIC) |
158 | value = 1; | |
d9a6bd32 | 159 | gomp_global_icv.run_sched_chunk_size = value; |
953ff289 DN |
160 | return; |
161 | ||
162 | unknown: | |
163 | gomp_error ("Unknown value for environment variable OMP_SCHEDULE"); | |
164 | return; | |
165 | ||
166 | invalid: | |
167 | gomp_error ("Invalid value for chunk size in " | |
168 | "environment variable OMP_SCHEDULE"); | |
953ff289 DN |
169 | return; |
170 | } | |
171 | ||
a68ab351 | 172 | /* Parse an unsigned long environment variable. Return true if one was |
953ff289 DN |
173 | present and it was successfully parsed. */ |
174 | ||
175 | static bool | |
80f046cc | 176 | parse_unsigned_long (const char *name, unsigned long *pvalue, bool allow_zero) |
953ff289 DN |
177 | { |
178 | char *env, *end; | |
d0d1b24d | 179 | unsigned long value; |
953ff289 | 180 | |
d0d1b24d | 181 | env = getenv (name); |
953ff289 DN |
182 | if (env == NULL) |
183 | return false; | |
184 | ||
89b3e3cd JJ |
185 | while (isspace ((unsigned char) *env)) |
186 | ++env; | |
953ff289 DN |
187 | if (*env == '\0') |
188 | goto invalid; | |
189 | ||
6acf0b38 | 190 | errno = 0; |
d0d1b24d | 191 | value = strtoul (env, &end, 10); |
80f046cc | 192 | if (errno || (long) value <= 0 - allow_zero) |
6acf0b38 UB |
193 | goto invalid; |
194 | ||
89b3e3cd JJ |
195 | while (isspace ((unsigned char) *end)) |
196 | ++end; | |
953ff289 DN |
197 | if (*end != '\0') |
198 | goto invalid; | |
d0d1b24d RH |
199 | |
200 | *pvalue = value; | |
953ff289 DN |
201 | return true; |
202 | ||
203 | invalid: | |
d0d1b24d | 204 | gomp_error ("Invalid value for environment variable %s", name); |
953ff289 DN |
205 | return false; |
206 | } | |
207 | ||
acf0174b JJ |
208 | /* Parse a positive int environment variable. Return true if one was |
209 | present and it was successfully parsed. */ | |
210 | ||
211 | static bool | |
212 | parse_int (const char *name, int *pvalue, bool allow_zero) | |
213 | { | |
214 | unsigned long value; | |
215 | if (!parse_unsigned_long (name, &value, allow_zero)) | |
216 | return false; | |
217 | if (value > INT_MAX) | |
218 | { | |
219 | gomp_error ("Invalid value for environment variable %s", name); | |
220 | return false; | |
221 | } | |
222 | *pvalue = (int) value; | |
223 | return true; | |
224 | } | |
225 | ||
20906c66 JJ |
226 | /* Parse an unsigned long list environment variable. Return true if one was |
227 | present and it was successfully parsed. */ | |
228 | ||
229 | static bool | |
230 | parse_unsigned_long_list (const char *name, unsigned long *p1stvalue, | |
231 | unsigned long **pvalues, | |
232 | unsigned long *pnvalues) | |
233 | { | |
234 | char *env, *end; | |
235 | unsigned long value, *values = NULL; | |
236 | ||
237 | env = getenv (name); | |
238 | if (env == NULL) | |
239 | return false; | |
240 | ||
241 | while (isspace ((unsigned char) *env)) | |
242 | ++env; | |
243 | if (*env == '\0') | |
244 | goto invalid; | |
245 | ||
246 | errno = 0; | |
247 | value = strtoul (env, &end, 10); | |
248 | if (errno || (long) value <= 0) | |
249 | goto invalid; | |
250 | ||
251 | while (isspace ((unsigned char) *end)) | |
252 | ++end; | |
253 | if (*end != '\0') | |
254 | { | |
255 | if (*end == ',') | |
256 | { | |
257 | unsigned long nvalues = 0, nalloced = 0; | |
258 | ||
259 | do | |
260 | { | |
261 | env = end + 1; | |
262 | if (nvalues == nalloced) | |
263 | { | |
264 | unsigned long *n; | |
265 | nalloced = nalloced ? nalloced * 2 : 16; | |
266 | n = realloc (values, nalloced * sizeof (unsigned long)); | |
267 | if (n == NULL) | |
268 | { | |
269 | free (values); | |
270 | gomp_error ("Out of memory while trying to parse" | |
271 | " environment variable %s", name); | |
272 | return false; | |
273 | } | |
274 | values = n; | |
275 | if (nvalues == 0) | |
276 | values[nvalues++] = value; | |
277 | } | |
278 | ||
279 | while (isspace ((unsigned char) *env)) | |
280 | ++env; | |
281 | if (*env == '\0') | |
282 | goto invalid; | |
283 | ||
284 | errno = 0; | |
285 | value = strtoul (env, &end, 10); | |
286 | if (errno || (long) value <= 0) | |
287 | goto invalid; | |
288 | ||
289 | values[nvalues++] = value; | |
290 | while (isspace ((unsigned char) *end)) | |
291 | ++end; | |
292 | if (*end == '\0') | |
293 | break; | |
294 | if (*end != ',') | |
295 | goto invalid; | |
296 | } | |
297 | while (1); | |
298 | *p1stvalue = values[0]; | |
299 | *pvalues = values; | |
300 | *pnvalues = nvalues; | |
301 | return true; | |
302 | } | |
303 | goto invalid; | |
304 | } | |
305 | ||
306 | *p1stvalue = value; | |
307 | return true; | |
308 | ||
309 | invalid: | |
310 | free (values); | |
311 | gomp_error ("Invalid value for environment variable %s", name); | |
312 | return false; | |
313 | } | |
314 | ||
acf0174b JJ |
315 | /* Parse environment variable set to a boolean or list of omp_proc_bind_t |
316 | enum values. Return true if one was present and it was successfully | |
317 | parsed. */ | |
318 | ||
319 | static bool | |
320 | parse_bind_var (const char *name, char *p1stvalue, | |
321 | char **pvalues, unsigned long *pnvalues) | |
322 | { | |
323 | char *env; | |
c8673881 | 324 | char value = omp_proc_bind_false, *values = NULL; |
acf0174b JJ |
325 | int i; |
326 | static struct proc_bind_kinds | |
327 | { | |
328 | const char name[7]; | |
329 | const char len; | |
330 | omp_proc_bind_t kind; | |
331 | } kinds[] = | |
332 | { | |
333 | { "false", 5, omp_proc_bind_false }, | |
334 | { "true", 4, omp_proc_bind_true }, | |
335 | { "master", 6, omp_proc_bind_master }, | |
336 | { "close", 5, omp_proc_bind_close }, | |
337 | { "spread", 6, omp_proc_bind_spread } | |
338 | }; | |
339 | ||
340 | env = getenv (name); | |
341 | if (env == NULL) | |
342 | return false; | |
343 | ||
344 | while (isspace ((unsigned char) *env)) | |
345 | ++env; | |
346 | if (*env == '\0') | |
347 | goto invalid; | |
348 | ||
349 | for (i = 0; i < 5; i++) | |
350 | if (strncasecmp (env, kinds[i].name, kinds[i].len) == 0) | |
351 | { | |
352 | value = kinds[i].kind; | |
353 | env += kinds[i].len; | |
354 | break; | |
355 | } | |
356 | if (i == 5) | |
357 | goto invalid; | |
358 | ||
359 | while (isspace ((unsigned char) *env)) | |
360 | ++env; | |
361 | if (*env != '\0') | |
362 | { | |
363 | if (*env == ',') | |
364 | { | |
365 | unsigned long nvalues = 0, nalloced = 0; | |
366 | ||
367 | if (value == omp_proc_bind_false | |
368 | || value == omp_proc_bind_true) | |
369 | goto invalid; | |
370 | ||
371 | do | |
372 | { | |
373 | env++; | |
374 | if (nvalues == nalloced) | |
375 | { | |
376 | char *n; | |
377 | nalloced = nalloced ? nalloced * 2 : 16; | |
378 | n = realloc (values, nalloced); | |
379 | if (n == NULL) | |
380 | { | |
381 | free (values); | |
382 | gomp_error ("Out of memory while trying to parse" | |
383 | " environment variable %s", name); | |
384 | return false; | |
385 | } | |
386 | values = n; | |
387 | if (nvalues == 0) | |
388 | values[nvalues++] = value; | |
389 | } | |
390 | ||
391 | while (isspace ((unsigned char) *env)) | |
392 | ++env; | |
393 | if (*env == '\0') | |
394 | goto invalid; | |
395 | ||
396 | for (i = 2; i < 5; i++) | |
397 | if (strncasecmp (env, kinds[i].name, kinds[i].len) == 0) | |
398 | { | |
399 | value = kinds[i].kind; | |
400 | env += kinds[i].len; | |
401 | break; | |
402 | } | |
403 | if (i == 5) | |
404 | goto invalid; | |
405 | ||
406 | values[nvalues++] = value; | |
407 | while (isspace ((unsigned char) *env)) | |
408 | ++env; | |
409 | if (*env == '\0') | |
410 | break; | |
411 | if (*env != ',') | |
412 | goto invalid; | |
413 | } | |
414 | while (1); | |
415 | *p1stvalue = values[0]; | |
416 | *pvalues = values; | |
417 | *pnvalues = nvalues; | |
418 | return true; | |
419 | } | |
420 | goto invalid; | |
421 | } | |
422 | ||
423 | *p1stvalue = value; | |
424 | return true; | |
425 | ||
426 | invalid: | |
427 | free (values); | |
428 | gomp_error ("Invalid value for environment variable %s", name); | |
429 | return false; | |
430 | } | |
431 | ||
432 | static bool | |
433 | parse_one_place (char **envp, bool *negatep, unsigned long *lenp, | |
434 | long *stridep) | |
435 | { | |
436 | char *env = *envp, *start; | |
437 | void *p = gomp_places_list ? gomp_places_list[gomp_places_list_len] : NULL; | |
438 | unsigned long len = 1; | |
439 | long stride = 1; | |
440 | int pass; | |
441 | bool any_negate = false; | |
442 | *negatep = false; | |
443 | while (isspace ((unsigned char) *env)) | |
444 | ++env; | |
445 | if (*env == '!') | |
446 | { | |
447 | *negatep = true; | |
448 | ++env; | |
449 | while (isspace ((unsigned char) *env)) | |
450 | ++env; | |
451 | } | |
452 | if (*env != '{') | |
453 | return false; | |
454 | ++env; | |
455 | while (isspace ((unsigned char) *env)) | |
456 | ++env; | |
457 | start = env; | |
458 | for (pass = 0; pass < (any_negate ? 2 : 1); pass++) | |
459 | { | |
460 | env = start; | |
461 | do | |
462 | { | |
463 | unsigned long this_num, this_len = 1; | |
464 | long this_stride = 1; | |
465 | bool this_negate = (*env == '!'); | |
466 | if (this_negate) | |
467 | { | |
468 | if (gomp_places_list) | |
469 | any_negate = true; | |
470 | ++env; | |
471 | while (isspace ((unsigned char) *env)) | |
472 | ++env; | |
473 | } | |
474 | ||
475 | errno = 0; | |
476 | this_num = strtoul (env, &env, 10); | |
477 | if (errno) | |
478 | return false; | |
479 | while (isspace ((unsigned char) *env)) | |
480 | ++env; | |
481 | if (*env == ':') | |
482 | { | |
483 | ++env; | |
484 | while (isspace ((unsigned char) *env)) | |
485 | ++env; | |
486 | errno = 0; | |
487 | this_len = strtoul (env, &env, 10); | |
488 | if (errno || this_len == 0) | |
489 | return false; | |
490 | while (isspace ((unsigned char) *env)) | |
491 | ++env; | |
492 | if (*env == ':') | |
493 | { | |
494 | ++env; | |
495 | while (isspace ((unsigned char) *env)) | |
496 | ++env; | |
497 | errno = 0; | |
498 | this_stride = strtol (env, &env, 10); | |
499 | if (errno) | |
500 | return false; | |
501 | while (isspace ((unsigned char) *env)) | |
502 | ++env; | |
503 | } | |
504 | } | |
505 | if (this_negate && this_len != 1) | |
506 | return false; | |
507 | if (gomp_places_list && pass == this_negate) | |
508 | { | |
509 | if (this_negate) | |
510 | { | |
511 | if (!gomp_affinity_remove_cpu (p, this_num)) | |
512 | return false; | |
513 | } | |
514 | else if (!gomp_affinity_add_cpus (p, this_num, this_len, | |
515 | this_stride, false)) | |
516 | return false; | |
517 | } | |
518 | if (*env == '}') | |
519 | break; | |
520 | if (*env != ',') | |
521 | return false; | |
522 | ++env; | |
523 | } | |
524 | while (1); | |
525 | } | |
526 | ||
527 | ++env; | |
528 | while (isspace ((unsigned char) *env)) | |
529 | ++env; | |
530 | if (*env == ':') | |
531 | { | |
532 | ++env; | |
533 | while (isspace ((unsigned char) *env)) | |
534 | ++env; | |
535 | errno = 0; | |
536 | len = strtoul (env, &env, 10); | |
537 | if (errno || len == 0 || len >= 65536) | |
538 | return false; | |
539 | while (isspace ((unsigned char) *env)) | |
540 | ++env; | |
541 | if (*env == ':') | |
542 | { | |
543 | ++env; | |
544 | while (isspace ((unsigned char) *env)) | |
545 | ++env; | |
546 | errno = 0; | |
547 | stride = strtol (env, &env, 10); | |
548 | if (errno) | |
549 | return false; | |
550 | while (isspace ((unsigned char) *env)) | |
551 | ++env; | |
552 | } | |
553 | } | |
554 | if (*negatep && len != 1) | |
555 | return false; | |
556 | *envp = env; | |
557 | *lenp = len; | |
558 | *stridep = stride; | |
559 | return true; | |
560 | } | |
561 | ||
562 | static bool | |
f89163fd | 563 | parse_places_var (const char *name, bool ignore) |
acf0174b JJ |
564 | { |
565 | char *env = getenv (name), *end; | |
566 | bool any_negate = false; | |
567 | int level = 0; | |
568 | unsigned long count = 0; | |
569 | if (env == NULL) | |
570 | return false; | |
571 | ||
572 | while (isspace ((unsigned char) *env)) | |
573 | ++env; | |
574 | if (*env == '\0') | |
575 | goto invalid; | |
576 | ||
577 | if (strncasecmp (env, "threads", 7) == 0) | |
578 | { | |
579 | env += 7; | |
580 | level = 1; | |
581 | } | |
582 | else if (strncasecmp (env, "cores", 5) == 0) | |
583 | { | |
584 | env += 5; | |
585 | level = 2; | |
586 | } | |
587 | else if (strncasecmp (env, "sockets", 7) == 0) | |
588 | { | |
589 | env += 7; | |
590 | level = 3; | |
591 | } | |
592 | if (level) | |
593 | { | |
594 | count = ULONG_MAX; | |
595 | while (isspace ((unsigned char) *env)) | |
596 | ++env; | |
597 | if (*env != '\0') | |
598 | { | |
599 | if (*env++ != '(') | |
600 | goto invalid; | |
601 | while (isspace ((unsigned char) *env)) | |
602 | ++env; | |
603 | ||
604 | errno = 0; | |
605 | count = strtoul (env, &end, 10); | |
606 | if (errno) | |
607 | goto invalid; | |
608 | env = end; | |
609 | while (isspace ((unsigned char) *env)) | |
610 | ++env; | |
611 | if (*env != ')') | |
612 | goto invalid; | |
613 | ++env; | |
614 | while (isspace ((unsigned char) *env)) | |
615 | ++env; | |
616 | if (*env != '\0') | |
617 | goto invalid; | |
618 | } | |
f89163fd JJ |
619 | |
620 | if (ignore) | |
621 | return false; | |
622 | ||
acf0174b JJ |
623 | return gomp_affinity_init_level (level, count, false); |
624 | } | |
625 | ||
626 | count = 0; | |
627 | end = env; | |
628 | do | |
629 | { | |
630 | bool negate; | |
631 | unsigned long len; | |
632 | long stride; | |
633 | if (!parse_one_place (&end, &negate, &len, &stride)) | |
634 | goto invalid; | |
635 | if (negate) | |
636 | { | |
637 | if (!any_negate) | |
638 | count++; | |
639 | any_negate = true; | |
640 | } | |
641 | else | |
642 | count += len; | |
643 | if (count > 65536) | |
644 | goto invalid; | |
645 | if (*end == '\0') | |
646 | break; | |
647 | if (*end != ',') | |
648 | goto invalid; | |
649 | end++; | |
650 | } | |
651 | while (1); | |
652 | ||
f89163fd | 653 | if (ignore) |
acf0174b JJ |
654 | return false; |
655 | ||
656 | gomp_places_list_len = 0; | |
657 | gomp_places_list = gomp_affinity_alloc (count, false); | |
658 | if (gomp_places_list == NULL) | |
659 | return false; | |
660 | ||
661 | do | |
662 | { | |
663 | bool negate; | |
664 | unsigned long len; | |
665 | long stride; | |
666 | gomp_affinity_init_place (gomp_places_list[gomp_places_list_len]); | |
667 | if (!parse_one_place (&env, &negate, &len, &stride)) | |
668 | goto invalid; | |
669 | if (negate) | |
670 | { | |
671 | void *p; | |
672 | for (count = 0; count < gomp_places_list_len; count++) | |
673 | if (gomp_affinity_same_place | |
674 | (gomp_places_list[count], | |
675 | gomp_places_list[gomp_places_list_len])) | |
676 | break; | |
677 | if (count == gomp_places_list_len) | |
678 | { | |
679 | gomp_error ("Trying to remove a non-existing place from list " | |
680 | "of places"); | |
681 | goto invalid; | |
682 | } | |
683 | p = gomp_places_list[count]; | |
684 | memmove (&gomp_places_list[count], | |
685 | &gomp_places_list[count + 1], | |
686 | (gomp_places_list_len - count - 1) * sizeof (void *)); | |
687 | --gomp_places_list_len; | |
688 | gomp_places_list[gomp_places_list_len] = p; | |
689 | } | |
690 | else if (len == 1) | |
691 | ++gomp_places_list_len; | |
692 | else | |
693 | { | |
694 | for (count = 0; count < len - 1; count++) | |
695 | if (!gomp_affinity_copy_place | |
696 | (gomp_places_list[gomp_places_list_len + count + 1], | |
697 | gomp_places_list[gomp_places_list_len + count], | |
698 | stride)) | |
699 | goto invalid; | |
700 | gomp_places_list_len += len; | |
701 | } | |
702 | if (*env == '\0') | |
703 | break; | |
704 | env++; | |
705 | } | |
706 | while (1); | |
707 | ||
708 | if (gomp_places_list_len == 0) | |
709 | { | |
710 | gomp_error ("All places have been removed"); | |
711 | goto invalid; | |
712 | } | |
713 | if (!gomp_affinity_finalize_place_list (false)) | |
714 | goto invalid; | |
715 | return true; | |
716 | ||
717 | invalid: | |
718 | free (gomp_places_list); | |
719 | gomp_places_list = NULL; | |
720 | gomp_places_list_len = 0; | |
721 | gomp_error ("Invalid value for environment variable %s", name); | |
722 | return false; | |
723 | } | |
724 | ||
a68ab351 JJ |
725 | /* Parse the OMP_STACKSIZE environment varible. Return true if one was |
726 | present and it was successfully parsed. */ | |
727 | ||
728 | static bool | |
729 | parse_stacksize (const char *name, unsigned long *pvalue) | |
730 | { | |
731 | char *env, *end; | |
732 | unsigned long value, shift = 10; | |
733 | ||
734 | env = getenv (name); | |
735 | if (env == NULL) | |
736 | return false; | |
737 | ||
738 | while (isspace ((unsigned char) *env)) | |
739 | ++env; | |
740 | if (*env == '\0') | |
741 | goto invalid; | |
742 | ||
743 | errno = 0; | |
744 | value = strtoul (env, &end, 10); | |
745 | if (errno) | |
746 | goto invalid; | |
747 | ||
748 | while (isspace ((unsigned char) *end)) | |
749 | ++end; | |
750 | if (*end != '\0') | |
751 | { | |
323ff903 | 752 | switch (tolower ((unsigned char) *end)) |
a68ab351 JJ |
753 | { |
754 | case 'b': | |
755 | shift = 0; | |
756 | break; | |
757 | case 'k': | |
758 | break; | |
759 | case 'm': | |
760 | shift = 20; | |
761 | break; | |
762 | case 'g': | |
763 | shift = 30; | |
764 | break; | |
765 | default: | |
766 | goto invalid; | |
767 | } | |
768 | ++end; | |
769 | while (isspace ((unsigned char) *end)) | |
770 | ++end; | |
771 | if (*end != '\0') | |
772 | goto invalid; | |
773 | } | |
774 | ||
775 | if (((value << shift) >> shift) != value) | |
776 | goto invalid; | |
777 | ||
778 | *pvalue = value << shift; | |
779 | return true; | |
780 | ||
781 | invalid: | |
782 | gomp_error ("Invalid value for environment variable %s", name); | |
783 | return false; | |
784 | } | |
785 | ||
786 | /* Parse the GOMP_SPINCOUNT environment varible. Return true if one was | |
787 | present and it was successfully parsed. */ | |
788 | ||
789 | static bool | |
790 | parse_spincount (const char *name, unsigned long long *pvalue) | |
791 | { | |
792 | char *env, *end; | |
793 | unsigned long long value, mult = 1; | |
794 | ||
795 | env = getenv (name); | |
796 | if (env == NULL) | |
797 | return false; | |
798 | ||
799 | while (isspace ((unsigned char) *env)) | |
800 | ++env; | |
801 | if (*env == '\0') | |
802 | goto invalid; | |
803 | ||
804 | if (strncasecmp (env, "infinite", 8) == 0 | |
805 | || strncasecmp (env, "infinity", 8) == 0) | |
806 | { | |
807 | value = ~0ULL; | |
808 | end = env + 8; | |
809 | goto check_tail; | |
810 | } | |
811 | ||
812 | errno = 0; | |
813 | value = strtoull (env, &end, 10); | |
814 | if (errno) | |
815 | goto invalid; | |
816 | ||
817 | while (isspace ((unsigned char) *end)) | |
818 | ++end; | |
819 | if (*end != '\0') | |
820 | { | |
323ff903 | 821 | switch (tolower ((unsigned char) *end)) |
a68ab351 JJ |
822 | { |
823 | case 'k': | |
824 | mult = 1000LL; | |
825 | break; | |
826 | case 'm': | |
827 | mult = 1000LL * 1000LL; | |
828 | break; | |
829 | case 'g': | |
830 | mult = 1000LL * 1000LL * 1000LL; | |
831 | break; | |
832 | case 't': | |
833 | mult = 1000LL * 1000LL * 1000LL * 1000LL; | |
834 | break; | |
835 | default: | |
836 | goto invalid; | |
837 | } | |
838 | ++end; | |
839 | check_tail: | |
840 | while (isspace ((unsigned char) *end)) | |
841 | ++end; | |
842 | if (*end != '\0') | |
843 | goto invalid; | |
844 | } | |
845 | ||
846 | if (value > ~0ULL / mult) | |
847 | value = ~0ULL; | |
848 | else | |
849 | value *= mult; | |
850 | ||
851 | *pvalue = value; | |
852 | return true; | |
853 | ||
854 | invalid: | |
855 | gomp_error ("Invalid value for environment variable %s", name); | |
856 | return false; | |
857 | } | |
858 | ||
859 | /* Parse a boolean value for environment variable NAME and store the | |
953ff289 DN |
860 | result in VALUE. */ |
861 | ||
862 | static void | |
863 | parse_boolean (const char *name, bool *value) | |
864 | { | |
865 | const char *env; | |
866 | ||
867 | env = getenv (name); | |
868 | if (env == NULL) | |
869 | return; | |
870 | ||
89b3e3cd JJ |
871 | while (isspace ((unsigned char) *env)) |
872 | ++env; | |
873 | if (strncasecmp (env, "true", 4) == 0) | |
874 | { | |
875 | *value = true; | |
876 | env += 4; | |
877 | } | |
878 | else if (strncasecmp (env, "false", 5) == 0) | |
879 | { | |
880 | *value = false; | |
881 | env += 5; | |
882 | } | |
953ff289 | 883 | else |
89b3e3cd JJ |
884 | env = "X"; |
885 | while (isspace ((unsigned char) *env)) | |
886 | ++env; | |
887 | if (*env != '\0') | |
d0d1b24d | 888 | gomp_error ("Invalid value for environment variable %s", name); |
953ff289 DN |
889 | } |
890 | ||
a68ab351 JJ |
891 | /* Parse the OMP_WAIT_POLICY environment variable and store the |
892 | result in gomp_active_wait_policy. */ | |
893 | ||
894 | static int | |
895 | parse_wait_policy (void) | |
896 | { | |
897 | const char *env; | |
898 | int ret = -1; | |
899 | ||
900 | env = getenv ("OMP_WAIT_POLICY"); | |
901 | if (env == NULL) | |
902 | return -1; | |
903 | ||
904 | while (isspace ((unsigned char) *env)) | |
905 | ++env; | |
906 | if (strncasecmp (env, "active", 6) == 0) | |
907 | { | |
908 | ret = 1; | |
909 | env += 6; | |
910 | } | |
911 | else if (strncasecmp (env, "passive", 7) == 0) | |
912 | { | |
913 | ret = 0; | |
914 | env += 7; | |
915 | } | |
916 | else | |
917 | env = "X"; | |
918 | while (isspace ((unsigned char) *env)) | |
919 | ++env; | |
920 | if (*env == '\0') | |
921 | return ret; | |
922 | gomp_error ("Invalid value for environment variable OMP_WAIT_POLICY"); | |
923 | return -1; | |
924 | } | |
925 | ||
a0884cf0 JJ |
926 | /* Parse the GOMP_CPU_AFFINITY environment varible. Return true if one was |
927 | present and it was successfully parsed. */ | |
928 | ||
929 | static bool | |
f89163fd | 930 | parse_affinity (bool ignore) |
a0884cf0 | 931 | { |
acf0174b JJ |
932 | char *env, *end, *start; |
933 | int pass; | |
a0884cf0 | 934 | unsigned long cpu_beg, cpu_end, cpu_stride; |
acf0174b | 935 | size_t count = 0, needed; |
a0884cf0 JJ |
936 | |
937 | env = getenv ("GOMP_CPU_AFFINITY"); | |
938 | if (env == NULL) | |
939 | return false; | |
940 | ||
acf0174b JJ |
941 | start = env; |
942 | for (pass = 0; pass < 2; pass++) | |
a0884cf0 | 943 | { |
acf0174b JJ |
944 | env = start; |
945 | if (pass == 1) | |
a0884cf0 | 946 | { |
f89163fd JJ |
947 | if (ignore) |
948 | return false; | |
949 | ||
acf0174b JJ |
950 | gomp_places_list_len = 0; |
951 | gomp_places_list = gomp_affinity_alloc (count, true); | |
952 | if (gomp_places_list == NULL) | |
953 | return false; | |
954 | } | |
955 | do | |
956 | { | |
957 | while (isspace ((unsigned char) *env)) | |
958 | ++env; | |
959 | ||
960 | errno = 0; | |
961 | cpu_beg = strtoul (env, &end, 0); | |
962 | if (errno || cpu_beg >= 65536) | |
a0884cf0 | 963 | goto invalid; |
acf0174b JJ |
964 | cpu_end = cpu_beg; |
965 | cpu_stride = 1; | |
a0884cf0 JJ |
966 | |
967 | env = end; | |
acf0174b | 968 | if (*env == '-') |
a0884cf0 | 969 | { |
acf0174b JJ |
970 | errno = 0; |
971 | cpu_end = strtoul (++env, &end, 0); | |
972 | if (errno || cpu_end >= 65536 || cpu_end < cpu_beg) | |
a0884cf0 JJ |
973 | goto invalid; |
974 | ||
975 | env = end; | |
acf0174b JJ |
976 | if (*env == ':') |
977 | { | |
978 | errno = 0; | |
979 | cpu_stride = strtoul (++env, &end, 0); | |
980 | if (errno || cpu_stride == 0 || cpu_stride >= 65536) | |
981 | goto invalid; | |
a0884cf0 | 982 | |
acf0174b JJ |
983 | env = end; |
984 | } | |
985 | } | |
a0884cf0 | 986 | |
acf0174b JJ |
987 | needed = (cpu_end - cpu_beg) / cpu_stride + 1; |
988 | if (pass == 0) | |
989 | count += needed; | |
a0884cf0 | 990 | else |
a0884cf0 | 991 | { |
acf0174b JJ |
992 | while (needed--) |
993 | { | |
994 | void *p = gomp_places_list[gomp_places_list_len]; | |
995 | gomp_affinity_init_place (p); | |
996 | if (gomp_affinity_add_cpus (p, cpu_beg, 1, 0, true)) | |
997 | ++gomp_places_list_len; | |
998 | cpu_beg += cpu_stride; | |
999 | } | |
a0884cf0 JJ |
1000 | } |
1001 | ||
acf0174b JJ |
1002 | while (isspace ((unsigned char) *env)) |
1003 | ++env; | |
a0884cf0 | 1004 | |
acf0174b JJ |
1005 | if (*env == ',') |
1006 | env++; | |
1007 | else if (*env == '\0') | |
1008 | break; | |
a0884cf0 | 1009 | } |
acf0174b | 1010 | while (1); |
a0884cf0 | 1011 | } |
a0884cf0 | 1012 | |
acf0174b JJ |
1013 | if (gomp_places_list_len == 0) |
1014 | { | |
1015 | free (gomp_places_list); | |
1016 | gomp_places_list = NULL; | |
f89163fd | 1017 | return false; |
acf0174b | 1018 | } |
a0884cf0 JJ |
1019 | return true; |
1020 | ||
1021 | invalid: | |
1022 | gomp_error ("Invalid value for enviroment variable GOMP_CPU_AFFINITY"); | |
1023 | return false; | |
1024 | } | |
1025 | ||
41dbbb37 TS |
1026 | static void |
1027 | parse_acc_device_type (void) | |
1028 | { | |
1029 | const char *env = getenv ("ACC_DEVICE_TYPE"); | |
1030 | ||
1031 | if (env && *env != '\0') | |
1032 | goacc_device_type = strdup (env); | |
1033 | else | |
1034 | goacc_device_type = NULL; | |
1035 | } | |
acf0174b JJ |
1036 | |
1037 | static void | |
1038 | handle_omp_display_env (unsigned long stacksize, int wait_policy) | |
1039 | { | |
1040 | const char *env; | |
1041 | bool display = false; | |
1042 | bool verbose = false; | |
1043 | int i; | |
1044 | ||
1045 | env = getenv ("OMP_DISPLAY_ENV"); | |
1046 | if (env == NULL) | |
1047 | return; | |
1048 | ||
1049 | while (isspace ((unsigned char) *env)) | |
1050 | ++env; | |
1051 | if (strncasecmp (env, "true", 4) == 0) | |
1052 | { | |
1053 | display = true; | |
1054 | env += 4; | |
1055 | } | |
1056 | else if (strncasecmp (env, "false", 5) == 0) | |
1057 | { | |
1058 | display = false; | |
1059 | env += 5; | |
1060 | } | |
1061 | else if (strncasecmp (env, "verbose", 7) == 0) | |
1062 | { | |
1063 | display = true; | |
1064 | verbose = true; | |
1065 | env += 7; | |
1066 | } | |
1067 | else | |
1068 | env = "X"; | |
1069 | while (isspace ((unsigned char) *env)) | |
1070 | ++env; | |
1071 | if (*env != '\0') | |
1072 | gomp_error ("Invalid value for environment variable OMP_DISPLAY_ENV"); | |
1073 | ||
1074 | if (!display) | |
1075 | return; | |
1076 | ||
1077 | fputs ("\nOPENMP DISPLAY ENVIRONMENT BEGIN\n", stderr); | |
1078 | ||
d9a6bd32 | 1079 | fputs (" _OPENMP = '201511'\n", stderr); |
acf0174b JJ |
1080 | fprintf (stderr, " OMP_DYNAMIC = '%s'\n", |
1081 | gomp_global_icv.dyn_var ? "TRUE" : "FALSE"); | |
1082 | fprintf (stderr, " OMP_NESTED = '%s'\n", | |
1083 | gomp_global_icv.nest_var ? "TRUE" : "FALSE"); | |
1084 | ||
1085 | fprintf (stderr, " OMP_NUM_THREADS = '%lu", gomp_global_icv.nthreads_var); | |
1086 | for (i = 1; i < gomp_nthreads_var_list_len; i++) | |
1087 | fprintf (stderr, ",%lu", gomp_nthreads_var_list[i]); | |
1088 | fputs ("'\n", stderr); | |
1089 | ||
1090 | fprintf (stderr, " OMP_SCHEDULE = '"); | |
1091 | switch (gomp_global_icv.run_sched_var) | |
1092 | { | |
1093 | case GFS_RUNTIME: | |
1094 | fputs ("RUNTIME", stderr); | |
1095 | break; | |
1096 | case GFS_STATIC: | |
1097 | fputs ("STATIC", stderr); | |
1098 | break; | |
1099 | case GFS_DYNAMIC: | |
1100 | fputs ("DYNAMIC", stderr); | |
1101 | break; | |
1102 | case GFS_GUIDED: | |
1103 | fputs ("GUIDED", stderr); | |
1104 | break; | |
1105 | case GFS_AUTO: | |
1106 | fputs ("AUTO", stderr); | |
1107 | break; | |
1108 | } | |
1109 | fputs ("'\n", stderr); | |
1110 | ||
1111 | fputs (" OMP_PROC_BIND = '", stderr); | |
1112 | switch (gomp_global_icv.bind_var) | |
1113 | { | |
1114 | case omp_proc_bind_false: | |
1115 | fputs ("FALSE", stderr); | |
1116 | break; | |
1117 | case omp_proc_bind_true: | |
1118 | fputs ("TRUE", stderr); | |
1119 | break; | |
1120 | case omp_proc_bind_master: | |
1121 | fputs ("MASTER", stderr); | |
1122 | break; | |
1123 | case omp_proc_bind_close: | |
1124 | fputs ("CLOSE", stderr); | |
1125 | break; | |
1126 | case omp_proc_bind_spread: | |
1127 | fputs ("SPREAD", stderr); | |
1128 | break; | |
1129 | } | |
1130 | for (i = 1; i < gomp_bind_var_list_len; i++) | |
1131 | switch (gomp_bind_var_list[i]) | |
1132 | { | |
1133 | case omp_proc_bind_master: | |
1134 | fputs (",MASTER", stderr); | |
1135 | break; | |
1136 | case omp_proc_bind_close: | |
1137 | fputs (",CLOSE", stderr); | |
1138 | break; | |
1139 | case omp_proc_bind_spread: | |
1140 | fputs (",SPREAD", stderr); | |
1141 | break; | |
1142 | } | |
1143 | fputs ("'\n", stderr); | |
1144 | fputs (" OMP_PLACES = '", stderr); | |
1145 | for (i = 0; i < gomp_places_list_len; i++) | |
1146 | { | |
1147 | fputs ("{", stderr); | |
1148 | gomp_affinity_print_place (gomp_places_list[i]); | |
1149 | fputs (i + 1 == gomp_places_list_len ? "}" : "},", stderr); | |
1150 | } | |
1151 | fputs ("'\n", stderr); | |
1152 | ||
1153 | fprintf (stderr, " OMP_STACKSIZE = '%lu'\n", stacksize); | |
1154 | ||
1155 | /* GOMP's default value is actually neither active nor passive. */ | |
1156 | fprintf (stderr, " OMP_WAIT_POLICY = '%s'\n", | |
1157 | wait_policy > 0 ? "ACTIVE" : "PASSIVE"); | |
1158 | fprintf (stderr, " OMP_THREAD_LIMIT = '%u'\n", | |
1159 | gomp_global_icv.thread_limit_var); | |
1160 | fprintf (stderr, " OMP_MAX_ACTIVE_LEVELS = '%lu'\n", | |
1161 | gomp_max_active_levels_var); | |
1162 | ||
1163 | fprintf (stderr, " OMP_CANCELLATION = '%s'\n", | |
1164 | gomp_cancel_var ? "TRUE" : "FALSE"); | |
1165 | fprintf (stderr, " OMP_DEFAULT_DEVICE = '%d'\n", | |
1166 | gomp_global_icv.default_device_var); | |
d9a6bd32 JJ |
1167 | fprintf (stderr, " OMP_MAX_TASK_PRIORITY = '%d'\n", |
1168 | gomp_max_task_priority_var); | |
acf0174b JJ |
1169 | |
1170 | if (verbose) | |
1171 | { | |
1172 | fputs (" GOMP_CPU_AFFINITY = ''\n", stderr); | |
1173 | fprintf (stderr, " GOMP_STACKSIZE = '%lu'\n", stacksize); | |
1174 | #ifdef HAVE_INTTYPES_H | |
1175 | fprintf (stderr, " GOMP_SPINCOUNT = '%"PRIu64"'\n", | |
1176 | (uint64_t) gomp_spin_count_var); | |
1177 | #else | |
1178 | fprintf (stderr, " GOMP_SPINCOUNT = '%lu'\n", | |
1179 | (unsigned long) gomp_spin_count_var); | |
1180 | #endif | |
1181 | } | |
1182 | ||
1183 | fputs ("OPENMP DISPLAY ENVIRONMENT END\n", stderr); | |
1184 | } | |
1185 | ||
1186 | ||
953ff289 DN |
1187 | static void __attribute__((constructor)) |
1188 | initialize_env (void) | |
1189 | { | |
e02d868a | 1190 | unsigned long thread_limit_var, stacksize = 0; |
a68ab351 | 1191 | int wait_policy; |
d0d1b24d | 1192 | |
953ff289 DN |
1193 | /* Do a compile time check that mkomp_h.pl did good job. */ |
1194 | omp_check_defines (); | |
1195 | ||
1196 | parse_schedule (); | |
a68ab351 JJ |
1197 | parse_boolean ("OMP_DYNAMIC", &gomp_global_icv.dyn_var); |
1198 | parse_boolean ("OMP_NESTED", &gomp_global_icv.nest_var); | |
acf0174b JJ |
1199 | parse_boolean ("OMP_CANCELLATION", &gomp_cancel_var); |
1200 | parse_int ("OMP_DEFAULT_DEVICE", &gomp_global_icv.default_device_var, true); | |
d9a6bd32 | 1201 | parse_int ("OMP_MAX_TASK_PRIORITY", &gomp_max_task_priority_var, true); |
80f046cc JJ |
1202 | parse_unsigned_long ("OMP_MAX_ACTIVE_LEVELS", &gomp_max_active_levels_var, |
1203 | true); | |
acf0174b JJ |
1204 | if (parse_unsigned_long ("OMP_THREAD_LIMIT", &thread_limit_var, false)) |
1205 | { | |
1206 | gomp_global_icv.thread_limit_var | |
1207 | = thread_limit_var > INT_MAX ? UINT_MAX : thread_limit_var; | |
1208 | } | |
41dbbb37 | 1209 | parse_int ("GOMP_DEBUG", &gomp_debug_var, true); |
a68ab351 | 1210 | #ifndef HAVE_SYNC_BUILTINS |
acf0174b | 1211 | gomp_mutex_init (&gomp_managed_threads_lock); |
a68ab351 | 1212 | #endif |
a68ab351 JJ |
1213 | gomp_init_num_threads (); |
1214 | gomp_available_cpus = gomp_global_icv.nthreads_var; | |
20906c66 JJ |
1215 | if (!parse_unsigned_long_list ("OMP_NUM_THREADS", |
1216 | &gomp_global_icv.nthreads_var, | |
1217 | &gomp_nthreads_var_list, | |
1218 | &gomp_nthreads_var_list_len)) | |
a68ab351 | 1219 | gomp_global_icv.nthreads_var = gomp_available_cpus; |
f89163fd JJ |
1220 | bool ignore = false; |
1221 | if (parse_bind_var ("OMP_PROC_BIND", | |
1222 | &gomp_global_icv.bind_var, | |
1223 | &gomp_bind_var_list, | |
1224 | &gomp_bind_var_list_len) | |
1225 | && gomp_global_icv.bind_var == omp_proc_bind_false) | |
1226 | ignore = true; | |
1227 | /* Make sure OMP_PLACES and GOMP_CPU_AFFINITY env vars are always | |
1228 | parsed if present in the environment. If OMP_PROC_BIND was set | |
1229 | explictly to false, don't populate places list though. If places | |
1230 | list was successfully set from OMP_PLACES, only parse but don't process | |
1231 | GOMP_CPU_AFFINITY. If OMP_PROC_BIND was not set in the environment, | |
1232 | default to OMP_PROC_BIND=true if OMP_PLACES or GOMP_CPU_AFFINITY | |
1233 | was successfully parsed into a places list, otherwise to | |
1234 | OMP_PROC_BIND=false. */ | |
1235 | if (parse_places_var ("OMP_PLACES", ignore)) | |
1236 | { | |
1237 | if (gomp_global_icv.bind_var == omp_proc_bind_false) | |
1238 | gomp_global_icv.bind_var = true; | |
1239 | ignore = true; | |
1240 | } | |
1241 | if (parse_affinity (ignore)) | |
1242 | { | |
1243 | if (gomp_global_icv.bind_var == omp_proc_bind_false) | |
1244 | gomp_global_icv.bind_var = true; | |
1245 | ignore = true; | |
1246 | } | |
1247 | if (gomp_global_icv.bind_var != omp_proc_bind_false) | |
a0884cf0 | 1248 | gomp_init_affinity (); |
a68ab351 JJ |
1249 | wait_policy = parse_wait_policy (); |
1250 | if (!parse_spincount ("GOMP_SPINCOUNT", &gomp_spin_count_var)) | |
1251 | { | |
1252 | /* Using a rough estimation of 100000 spins per msec, | |
1253 | use 5 min blocking for OMP_WAIT_POLICY=active, | |
4c698cf8 | 1254 | 3 msec blocking when OMP_WAIT_POLICY is not specificed |
a68ab351 JJ |
1255 | and 0 when OMP_WAIT_POLICY=passive. |
1256 | Depending on the CPU speed, this can be e.g. 5 times longer | |
1257 | or 5 times shorter. */ | |
1258 | if (wait_policy > 0) | |
1259 | gomp_spin_count_var = 30000000000LL; | |
1260 | else if (wait_policy < 0) | |
4c698cf8 | 1261 | gomp_spin_count_var = 300000LL; |
a68ab351 JJ |
1262 | } |
1263 | /* gomp_throttled_spin_count_var is used when there are more libgomp | |
1264 | managed threads than available CPUs. Use very short spinning. */ | |
1265 | if (wait_policy > 0) | |
1266 | gomp_throttled_spin_count_var = 1000LL; | |
1267 | else if (wait_policy < 0) | |
1268 | gomp_throttled_spin_count_var = 100LL; | |
1269 | if (gomp_throttled_spin_count_var > gomp_spin_count_var) | |
1270 | gomp_throttled_spin_count_var = gomp_spin_count_var; | |
d0d1b24d RH |
1271 | |
1272 | /* Not strictly environment related, but ordering constructors is tricky. */ | |
1273 | pthread_attr_init (&gomp_thread_attr); | |
1274 | pthread_attr_setdetachstate (&gomp_thread_attr, PTHREAD_CREATE_DETACHED); | |
1275 | ||
a68ab351 JJ |
1276 | if (parse_stacksize ("OMP_STACKSIZE", &stacksize) |
1277 | || parse_stacksize ("GOMP_STACKSIZE", &stacksize)) | |
d0d1b24d | 1278 | { |
c3b11a40 RH |
1279 | int err; |
1280 | ||
c3b11a40 RH |
1281 | err = pthread_attr_setstacksize (&gomp_thread_attr, stacksize); |
1282 | ||
1283 | #ifdef PTHREAD_STACK_MIN | |
1284 | if (err == EINVAL) | |
d0d1b24d | 1285 | { |
c3b11a40 RH |
1286 | if (stacksize < PTHREAD_STACK_MIN) |
1287 | gomp_error ("Stack size less than minimum of %luk", | |
1288 | PTHREAD_STACK_MIN / 1024ul | |
1289 | + (PTHREAD_STACK_MIN % 1024 != 0)); | |
1290 | else | |
d0d1b24d | 1291 | gomp_error ("Stack size larger than system limit"); |
d0d1b24d | 1292 | } |
c3b11a40 RH |
1293 | else |
1294 | #endif | |
1295 | if (err != 0) | |
1296 | gomp_error ("Stack size change failed: %s", strerror (err)); | |
d0d1b24d | 1297 | } |
acf0174b JJ |
1298 | |
1299 | handle_omp_display_env (stacksize, wait_policy); | |
41dbbb37 TS |
1300 | |
1301 | /* OpenACC. */ | |
1302 | ||
1303 | if (!parse_int ("ACC_DEVICE_NUM", &goacc_device_num, true)) | |
1304 | goacc_device_num = 0; | |
1305 | ||
1306 | parse_acc_device_type (); | |
1307 | ||
1308 | goacc_runtime_initialize (); | |
953ff289 | 1309 | } |
630e3c3a | 1310 | #endif /* LIBGOMP_OFFLOADED_ONLY */ |