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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> |
c4060df4 | 54 | #include "thread-stacksize.h" |
953ff289 | 55 | |
976e44e3 JJ |
56 | #ifndef HAVE_STRTOULL |
57 | # define strtoull(ptr, eptr, base) strtoul (ptr, eptr, base) | |
58 | #endif | |
630e3c3a AM |
59 | #endif /* LIBGOMP_OFFLOADED_ONLY */ |
60 | ||
61 | struct gomp_task_icv gomp_global_icv = { | |
62 | .nthreads_var = 1, | |
63 | .thread_limit_var = UINT_MAX, | |
64 | .run_sched_var = GFS_DYNAMIC, | |
65 | .run_sched_chunk_size = 1, | |
66 | .default_device_var = 0, | |
67 | .dyn_var = false, | |
68 | .nest_var = false, | |
69 | .bind_var = omp_proc_bind_false, | |
70 | .target_data = NULL | |
71 | }; | |
72 | ||
73 | unsigned long gomp_max_active_levels_var = INT_MAX; | |
74 | bool gomp_cancel_var = false; | |
75 | int gomp_max_task_priority_var = 0; | |
76 | #ifndef HAVE_SYNC_BUILTINS | |
77 | gomp_mutex_t gomp_managed_threads_lock; | |
78 | #endif | |
79 | unsigned long gomp_available_cpus = 1, gomp_managed_threads = 1; | |
80 | unsigned long long gomp_spin_count_var, gomp_throttled_spin_count_var; | |
81 | unsigned long *gomp_nthreads_var_list, gomp_nthreads_var_list_len; | |
82 | char *gomp_bind_var_list; | |
83 | unsigned long gomp_bind_var_list_len; | |
84 | void **gomp_places_list; | |
85 | unsigned long gomp_places_list_len; | |
86 | int gomp_debug_var; | |
87 | unsigned int gomp_num_teams_var; | |
88 | char *goacc_device_type; | |
89 | int goacc_device_num; | |
90 | ||
91 | #ifndef LIBGOMP_OFFLOADED_ONLY | |
953ff289 | 92 | |
953ff289 DN |
93 | /* Parse the OMP_SCHEDULE environment variable. */ |
94 | ||
95 | static void | |
96 | parse_schedule (void) | |
97 | { | |
98 | char *env, *end; | |
6acf0b38 | 99 | unsigned long value; |
953ff289 DN |
100 | |
101 | env = getenv ("OMP_SCHEDULE"); | |
102 | if (env == NULL) | |
103 | return; | |
104 | ||
89b3e3cd JJ |
105 | while (isspace ((unsigned char) *env)) |
106 | ++env; | |
107 | if (strncasecmp (env, "static", 6) == 0) | |
953ff289 | 108 | { |
a68ab351 | 109 | gomp_global_icv.run_sched_var = GFS_STATIC; |
953ff289 DN |
110 | env += 6; |
111 | } | |
89b3e3cd | 112 | else if (strncasecmp (env, "dynamic", 7) == 0) |
953ff289 | 113 | { |
a68ab351 | 114 | gomp_global_icv.run_sched_var = GFS_DYNAMIC; |
953ff289 DN |
115 | env += 7; |
116 | } | |
89b3e3cd | 117 | else if (strncasecmp (env, "guided", 6) == 0) |
953ff289 | 118 | { |
a68ab351 | 119 | gomp_global_icv.run_sched_var = GFS_GUIDED; |
953ff289 DN |
120 | env += 6; |
121 | } | |
a68ab351 JJ |
122 | else if (strncasecmp (env, "auto", 4) == 0) |
123 | { | |
124 | gomp_global_icv.run_sched_var = GFS_AUTO; | |
125 | env += 4; | |
126 | } | |
953ff289 DN |
127 | else |
128 | goto unknown; | |
129 | ||
89b3e3cd JJ |
130 | while (isspace ((unsigned char) *env)) |
131 | ++env; | |
953ff289 | 132 | if (*env == '\0') |
fb79f500 | 133 | { |
d9a6bd32 | 134 | gomp_global_icv.run_sched_chunk_size |
fb79f500 JJ |
135 | = gomp_global_icv.run_sched_var != GFS_STATIC; |
136 | return; | |
137 | } | |
89b3e3cd | 138 | if (*env++ != ',') |
953ff289 | 139 | goto unknown; |
89b3e3cd JJ |
140 | while (isspace ((unsigned char) *env)) |
141 | ++env; | |
953ff289 | 142 | if (*env == '\0') |
953ff289 DN |
143 | goto invalid; |
144 | ||
6acf0b38 UB |
145 | errno = 0; |
146 | value = strtoul (env, &end, 10); | |
147 | if (errno) | |
148 | goto invalid; | |
149 | ||
89b3e3cd JJ |
150 | while (isspace ((unsigned char) *end)) |
151 | ++end; | |
953ff289 DN |
152 | if (*end != '\0') |
153 | goto invalid; | |
6acf0b38 | 154 | |
a68ab351 JJ |
155 | if ((int)value != value) |
156 | goto invalid; | |
157 | ||
fb79f500 JJ |
158 | if (value == 0 && gomp_global_icv.run_sched_var != GFS_STATIC) |
159 | value = 1; | |
d9a6bd32 | 160 | gomp_global_icv.run_sched_chunk_size = value; |
953ff289 DN |
161 | return; |
162 | ||
163 | unknown: | |
164 | gomp_error ("Unknown value for environment variable OMP_SCHEDULE"); | |
165 | return; | |
166 | ||
167 | invalid: | |
168 | gomp_error ("Invalid value for chunk size in " | |
169 | "environment variable OMP_SCHEDULE"); | |
953ff289 DN |
170 | return; |
171 | } | |
172 | ||
a68ab351 | 173 | /* Parse an unsigned long environment variable. Return true if one was |
953ff289 DN |
174 | present and it was successfully parsed. */ |
175 | ||
176 | static bool | |
80f046cc | 177 | parse_unsigned_long (const char *name, unsigned long *pvalue, bool allow_zero) |
953ff289 DN |
178 | { |
179 | char *env, *end; | |
d0d1b24d | 180 | unsigned long value; |
953ff289 | 181 | |
d0d1b24d | 182 | env = getenv (name); |
953ff289 DN |
183 | if (env == NULL) |
184 | return false; | |
185 | ||
89b3e3cd JJ |
186 | while (isspace ((unsigned char) *env)) |
187 | ++env; | |
953ff289 DN |
188 | if (*env == '\0') |
189 | goto invalid; | |
190 | ||
6acf0b38 | 191 | errno = 0; |
d0d1b24d | 192 | value = strtoul (env, &end, 10); |
80f046cc | 193 | if (errno || (long) value <= 0 - allow_zero) |
6acf0b38 UB |
194 | goto invalid; |
195 | ||
89b3e3cd JJ |
196 | while (isspace ((unsigned char) *end)) |
197 | ++end; | |
953ff289 DN |
198 | if (*end != '\0') |
199 | goto invalid; | |
d0d1b24d RH |
200 | |
201 | *pvalue = value; | |
953ff289 DN |
202 | return true; |
203 | ||
204 | invalid: | |
d0d1b24d | 205 | gomp_error ("Invalid value for environment variable %s", name); |
953ff289 DN |
206 | return false; |
207 | } | |
208 | ||
acf0174b JJ |
209 | /* Parse a positive int environment variable. Return true if one was |
210 | present and it was successfully parsed. */ | |
211 | ||
212 | static bool | |
213 | parse_int (const char *name, int *pvalue, bool allow_zero) | |
214 | { | |
215 | unsigned long value; | |
216 | if (!parse_unsigned_long (name, &value, allow_zero)) | |
217 | return false; | |
218 | if (value > INT_MAX) | |
219 | { | |
220 | gomp_error ("Invalid value for environment variable %s", name); | |
221 | return false; | |
222 | } | |
223 | *pvalue = (int) value; | |
224 | return true; | |
225 | } | |
226 | ||
20906c66 JJ |
227 | /* Parse an unsigned long list environment variable. Return true if one was |
228 | present and it was successfully parsed. */ | |
229 | ||
230 | static bool | |
231 | parse_unsigned_long_list (const char *name, unsigned long *p1stvalue, | |
232 | unsigned long **pvalues, | |
233 | unsigned long *pnvalues) | |
234 | { | |
235 | char *env, *end; | |
236 | unsigned long value, *values = NULL; | |
237 | ||
238 | env = getenv (name); | |
239 | if (env == NULL) | |
240 | return false; | |
241 | ||
242 | while (isspace ((unsigned char) *env)) | |
243 | ++env; | |
244 | if (*env == '\0') | |
245 | goto invalid; | |
246 | ||
247 | errno = 0; | |
248 | value = strtoul (env, &end, 10); | |
249 | if (errno || (long) value <= 0) | |
250 | goto invalid; | |
251 | ||
252 | while (isspace ((unsigned char) *end)) | |
253 | ++end; | |
254 | if (*end != '\0') | |
255 | { | |
256 | if (*end == ',') | |
257 | { | |
258 | unsigned long nvalues = 0, nalloced = 0; | |
259 | ||
260 | do | |
261 | { | |
262 | env = end + 1; | |
263 | if (nvalues == nalloced) | |
264 | { | |
265 | unsigned long *n; | |
266 | nalloced = nalloced ? nalloced * 2 : 16; | |
267 | n = realloc (values, nalloced * sizeof (unsigned long)); | |
268 | if (n == NULL) | |
269 | { | |
270 | free (values); | |
271 | gomp_error ("Out of memory while trying to parse" | |
272 | " environment variable %s", name); | |
273 | return false; | |
274 | } | |
275 | values = n; | |
276 | if (nvalues == 0) | |
277 | values[nvalues++] = value; | |
278 | } | |
279 | ||
280 | while (isspace ((unsigned char) *env)) | |
281 | ++env; | |
282 | if (*env == '\0') | |
283 | goto invalid; | |
284 | ||
285 | errno = 0; | |
286 | value = strtoul (env, &end, 10); | |
287 | if (errno || (long) value <= 0) | |
288 | goto invalid; | |
289 | ||
290 | values[nvalues++] = value; | |
291 | while (isspace ((unsigned char) *end)) | |
292 | ++end; | |
293 | if (*end == '\0') | |
294 | break; | |
295 | if (*end != ',') | |
296 | goto invalid; | |
297 | } | |
298 | while (1); | |
299 | *p1stvalue = values[0]; | |
300 | *pvalues = values; | |
301 | *pnvalues = nvalues; | |
302 | return true; | |
303 | } | |
304 | goto invalid; | |
305 | } | |
306 | ||
307 | *p1stvalue = value; | |
308 | return true; | |
309 | ||
310 | invalid: | |
311 | free (values); | |
312 | gomp_error ("Invalid value for environment variable %s", name); | |
313 | return false; | |
314 | } | |
315 | ||
acf0174b JJ |
316 | /* Parse environment variable set to a boolean or list of omp_proc_bind_t |
317 | enum values. Return true if one was present and it was successfully | |
318 | parsed. */ | |
319 | ||
320 | static bool | |
321 | parse_bind_var (const char *name, char *p1stvalue, | |
322 | char **pvalues, unsigned long *pnvalues) | |
323 | { | |
324 | char *env; | |
c8673881 | 325 | char value = omp_proc_bind_false, *values = NULL; |
acf0174b JJ |
326 | int i; |
327 | static struct proc_bind_kinds | |
328 | { | |
329 | const char name[7]; | |
330 | const char len; | |
331 | omp_proc_bind_t kind; | |
332 | } kinds[] = | |
333 | { | |
334 | { "false", 5, omp_proc_bind_false }, | |
335 | { "true", 4, omp_proc_bind_true }, | |
336 | { "master", 6, omp_proc_bind_master }, | |
337 | { "close", 5, omp_proc_bind_close }, | |
338 | { "spread", 6, omp_proc_bind_spread } | |
339 | }; | |
340 | ||
341 | env = getenv (name); | |
342 | if (env == NULL) | |
343 | return false; | |
344 | ||
345 | while (isspace ((unsigned char) *env)) | |
346 | ++env; | |
347 | if (*env == '\0') | |
348 | goto invalid; | |
349 | ||
350 | for (i = 0; i < 5; i++) | |
351 | if (strncasecmp (env, kinds[i].name, kinds[i].len) == 0) | |
352 | { | |
353 | value = kinds[i].kind; | |
354 | env += kinds[i].len; | |
355 | break; | |
356 | } | |
357 | if (i == 5) | |
358 | goto invalid; | |
359 | ||
360 | while (isspace ((unsigned char) *env)) | |
361 | ++env; | |
362 | if (*env != '\0') | |
363 | { | |
364 | if (*env == ',') | |
365 | { | |
366 | unsigned long nvalues = 0, nalloced = 0; | |
367 | ||
368 | if (value == omp_proc_bind_false | |
369 | || value == omp_proc_bind_true) | |
370 | goto invalid; | |
371 | ||
372 | do | |
373 | { | |
374 | env++; | |
375 | if (nvalues == nalloced) | |
376 | { | |
377 | char *n; | |
378 | nalloced = nalloced ? nalloced * 2 : 16; | |
379 | n = realloc (values, nalloced); | |
380 | if (n == NULL) | |
381 | { | |
382 | free (values); | |
383 | gomp_error ("Out of memory while trying to parse" | |
384 | " environment variable %s", name); | |
385 | return false; | |
386 | } | |
387 | values = n; | |
388 | if (nvalues == 0) | |
389 | values[nvalues++] = value; | |
390 | } | |
391 | ||
392 | while (isspace ((unsigned char) *env)) | |
393 | ++env; | |
394 | if (*env == '\0') | |
395 | goto invalid; | |
396 | ||
397 | for (i = 2; i < 5; i++) | |
398 | if (strncasecmp (env, kinds[i].name, kinds[i].len) == 0) | |
399 | { | |
400 | value = kinds[i].kind; | |
401 | env += kinds[i].len; | |
402 | break; | |
403 | } | |
404 | if (i == 5) | |
405 | goto invalid; | |
406 | ||
407 | values[nvalues++] = value; | |
408 | while (isspace ((unsigned char) *env)) | |
409 | ++env; | |
410 | if (*env == '\0') | |
411 | break; | |
412 | if (*env != ',') | |
413 | goto invalid; | |
414 | } | |
415 | while (1); | |
416 | *p1stvalue = values[0]; | |
417 | *pvalues = values; | |
418 | *pnvalues = nvalues; | |
419 | return true; | |
420 | } | |
421 | goto invalid; | |
422 | } | |
423 | ||
424 | *p1stvalue = value; | |
425 | return true; | |
426 | ||
427 | invalid: | |
428 | free (values); | |
429 | gomp_error ("Invalid value for environment variable %s", name); | |
430 | return false; | |
431 | } | |
432 | ||
433 | static bool | |
434 | parse_one_place (char **envp, bool *negatep, unsigned long *lenp, | |
435 | long *stridep) | |
436 | { | |
437 | char *env = *envp, *start; | |
438 | void *p = gomp_places_list ? gomp_places_list[gomp_places_list_len] : NULL; | |
439 | unsigned long len = 1; | |
440 | long stride = 1; | |
441 | int pass; | |
442 | bool any_negate = false; | |
443 | *negatep = false; | |
444 | while (isspace ((unsigned char) *env)) | |
445 | ++env; | |
446 | if (*env == '!') | |
447 | { | |
448 | *negatep = true; | |
449 | ++env; | |
450 | while (isspace ((unsigned char) *env)) | |
451 | ++env; | |
452 | } | |
453 | if (*env != '{') | |
454 | return false; | |
455 | ++env; | |
456 | while (isspace ((unsigned char) *env)) | |
457 | ++env; | |
458 | start = env; | |
459 | for (pass = 0; pass < (any_negate ? 2 : 1); pass++) | |
460 | { | |
461 | env = start; | |
462 | do | |
463 | { | |
464 | unsigned long this_num, this_len = 1; | |
465 | long this_stride = 1; | |
466 | bool this_negate = (*env == '!'); | |
467 | if (this_negate) | |
468 | { | |
469 | if (gomp_places_list) | |
470 | any_negate = true; | |
471 | ++env; | |
472 | while (isspace ((unsigned char) *env)) | |
473 | ++env; | |
474 | } | |
475 | ||
476 | errno = 0; | |
477 | this_num = strtoul (env, &env, 10); | |
478 | if (errno) | |
479 | return false; | |
480 | while (isspace ((unsigned char) *env)) | |
481 | ++env; | |
482 | if (*env == ':') | |
483 | { | |
484 | ++env; | |
485 | while (isspace ((unsigned char) *env)) | |
486 | ++env; | |
487 | errno = 0; | |
488 | this_len = strtoul (env, &env, 10); | |
489 | if (errno || this_len == 0) | |
490 | return false; | |
491 | while (isspace ((unsigned char) *env)) | |
492 | ++env; | |
493 | if (*env == ':') | |
494 | { | |
495 | ++env; | |
496 | while (isspace ((unsigned char) *env)) | |
497 | ++env; | |
498 | errno = 0; | |
499 | this_stride = strtol (env, &env, 10); | |
500 | if (errno) | |
501 | return false; | |
502 | while (isspace ((unsigned char) *env)) | |
503 | ++env; | |
504 | } | |
505 | } | |
506 | if (this_negate && this_len != 1) | |
507 | return false; | |
508 | if (gomp_places_list && pass == this_negate) | |
509 | { | |
510 | if (this_negate) | |
511 | { | |
512 | if (!gomp_affinity_remove_cpu (p, this_num)) | |
513 | return false; | |
514 | } | |
515 | else if (!gomp_affinity_add_cpus (p, this_num, this_len, | |
516 | this_stride, false)) | |
517 | return false; | |
518 | } | |
519 | if (*env == '}') | |
520 | break; | |
521 | if (*env != ',') | |
522 | return false; | |
523 | ++env; | |
524 | } | |
525 | while (1); | |
526 | } | |
527 | ||
528 | ++env; | |
529 | while (isspace ((unsigned char) *env)) | |
530 | ++env; | |
531 | if (*env == ':') | |
532 | { | |
533 | ++env; | |
534 | while (isspace ((unsigned char) *env)) | |
535 | ++env; | |
536 | errno = 0; | |
537 | len = strtoul (env, &env, 10); | |
538 | if (errno || len == 0 || len >= 65536) | |
539 | return false; | |
540 | while (isspace ((unsigned char) *env)) | |
541 | ++env; | |
542 | if (*env == ':') | |
543 | { | |
544 | ++env; | |
545 | while (isspace ((unsigned char) *env)) | |
546 | ++env; | |
547 | errno = 0; | |
548 | stride = strtol (env, &env, 10); | |
549 | if (errno) | |
550 | return false; | |
551 | while (isspace ((unsigned char) *env)) | |
552 | ++env; | |
553 | } | |
554 | } | |
555 | if (*negatep && len != 1) | |
556 | return false; | |
557 | *envp = env; | |
558 | *lenp = len; | |
559 | *stridep = stride; | |
560 | return true; | |
561 | } | |
562 | ||
563 | static bool | |
f89163fd | 564 | parse_places_var (const char *name, bool ignore) |
acf0174b JJ |
565 | { |
566 | char *env = getenv (name), *end; | |
567 | bool any_negate = false; | |
568 | int level = 0; | |
569 | unsigned long count = 0; | |
570 | if (env == NULL) | |
571 | return false; | |
572 | ||
573 | while (isspace ((unsigned char) *env)) | |
574 | ++env; | |
575 | if (*env == '\0') | |
576 | goto invalid; | |
577 | ||
578 | if (strncasecmp (env, "threads", 7) == 0) | |
579 | { | |
580 | env += 7; | |
581 | level = 1; | |
582 | } | |
583 | else if (strncasecmp (env, "cores", 5) == 0) | |
584 | { | |
585 | env += 5; | |
586 | level = 2; | |
587 | } | |
588 | else if (strncasecmp (env, "sockets", 7) == 0) | |
589 | { | |
590 | env += 7; | |
591 | level = 3; | |
592 | } | |
593 | if (level) | |
594 | { | |
595 | count = ULONG_MAX; | |
596 | while (isspace ((unsigned char) *env)) | |
597 | ++env; | |
598 | if (*env != '\0') | |
599 | { | |
600 | if (*env++ != '(') | |
601 | goto invalid; | |
602 | while (isspace ((unsigned char) *env)) | |
603 | ++env; | |
604 | ||
605 | errno = 0; | |
606 | count = strtoul (env, &end, 10); | |
607 | if (errno) | |
608 | goto invalid; | |
609 | env = end; | |
610 | while (isspace ((unsigned char) *env)) | |
611 | ++env; | |
612 | if (*env != ')') | |
613 | goto invalid; | |
614 | ++env; | |
615 | while (isspace ((unsigned char) *env)) | |
616 | ++env; | |
617 | if (*env != '\0') | |
618 | goto invalid; | |
619 | } | |
f89163fd JJ |
620 | |
621 | if (ignore) | |
622 | return false; | |
623 | ||
acf0174b JJ |
624 | return gomp_affinity_init_level (level, count, false); |
625 | } | |
626 | ||
627 | count = 0; | |
628 | end = env; | |
629 | do | |
630 | { | |
631 | bool negate; | |
632 | unsigned long len; | |
633 | long stride; | |
634 | if (!parse_one_place (&end, &negate, &len, &stride)) | |
635 | goto invalid; | |
636 | if (negate) | |
637 | { | |
638 | if (!any_negate) | |
639 | count++; | |
640 | any_negate = true; | |
641 | } | |
642 | else | |
643 | count += len; | |
644 | if (count > 65536) | |
645 | goto invalid; | |
646 | if (*end == '\0') | |
647 | break; | |
648 | if (*end != ',') | |
649 | goto invalid; | |
650 | end++; | |
651 | } | |
652 | while (1); | |
653 | ||
f89163fd | 654 | if (ignore) |
acf0174b JJ |
655 | return false; |
656 | ||
657 | gomp_places_list_len = 0; | |
658 | gomp_places_list = gomp_affinity_alloc (count, false); | |
659 | if (gomp_places_list == NULL) | |
660 | return false; | |
661 | ||
662 | do | |
663 | { | |
664 | bool negate; | |
665 | unsigned long len; | |
666 | long stride; | |
667 | gomp_affinity_init_place (gomp_places_list[gomp_places_list_len]); | |
668 | if (!parse_one_place (&env, &negate, &len, &stride)) | |
669 | goto invalid; | |
670 | if (negate) | |
671 | { | |
672 | void *p; | |
673 | for (count = 0; count < gomp_places_list_len; count++) | |
674 | if (gomp_affinity_same_place | |
675 | (gomp_places_list[count], | |
676 | gomp_places_list[gomp_places_list_len])) | |
677 | break; | |
678 | if (count == gomp_places_list_len) | |
679 | { | |
680 | gomp_error ("Trying to remove a non-existing place from list " | |
681 | "of places"); | |
682 | goto invalid; | |
683 | } | |
684 | p = gomp_places_list[count]; | |
685 | memmove (&gomp_places_list[count], | |
686 | &gomp_places_list[count + 1], | |
687 | (gomp_places_list_len - count - 1) * sizeof (void *)); | |
688 | --gomp_places_list_len; | |
689 | gomp_places_list[gomp_places_list_len] = p; | |
690 | } | |
691 | else if (len == 1) | |
692 | ++gomp_places_list_len; | |
693 | else | |
694 | { | |
695 | for (count = 0; count < len - 1; count++) | |
696 | if (!gomp_affinity_copy_place | |
697 | (gomp_places_list[gomp_places_list_len + count + 1], | |
698 | gomp_places_list[gomp_places_list_len + count], | |
699 | stride)) | |
700 | goto invalid; | |
701 | gomp_places_list_len += len; | |
702 | } | |
703 | if (*env == '\0') | |
704 | break; | |
705 | env++; | |
706 | } | |
707 | while (1); | |
708 | ||
709 | if (gomp_places_list_len == 0) | |
710 | { | |
711 | gomp_error ("All places have been removed"); | |
712 | goto invalid; | |
713 | } | |
714 | if (!gomp_affinity_finalize_place_list (false)) | |
715 | goto invalid; | |
716 | return true; | |
717 | ||
718 | invalid: | |
719 | free (gomp_places_list); | |
720 | gomp_places_list = NULL; | |
721 | gomp_places_list_len = 0; | |
722 | gomp_error ("Invalid value for environment variable %s", name); | |
723 | return false; | |
724 | } | |
725 | ||
a68ab351 JJ |
726 | /* Parse the OMP_STACKSIZE environment varible. Return true if one was |
727 | present and it was successfully parsed. */ | |
728 | ||
729 | static bool | |
730 | parse_stacksize (const char *name, unsigned long *pvalue) | |
731 | { | |
732 | char *env, *end; | |
733 | unsigned long value, shift = 10; | |
734 | ||
735 | env = getenv (name); | |
736 | if (env == NULL) | |
737 | return false; | |
738 | ||
739 | while (isspace ((unsigned char) *env)) | |
740 | ++env; | |
741 | if (*env == '\0') | |
742 | goto invalid; | |
743 | ||
744 | errno = 0; | |
745 | value = strtoul (env, &end, 10); | |
746 | if (errno) | |
747 | goto invalid; | |
748 | ||
749 | while (isspace ((unsigned char) *end)) | |
750 | ++end; | |
751 | if (*end != '\0') | |
752 | { | |
323ff903 | 753 | switch (tolower ((unsigned char) *end)) |
a68ab351 JJ |
754 | { |
755 | case 'b': | |
756 | shift = 0; | |
757 | break; | |
758 | case 'k': | |
759 | break; | |
760 | case 'm': | |
761 | shift = 20; | |
762 | break; | |
763 | case 'g': | |
764 | shift = 30; | |
765 | break; | |
766 | default: | |
767 | goto invalid; | |
768 | } | |
769 | ++end; | |
770 | while (isspace ((unsigned char) *end)) | |
771 | ++end; | |
772 | if (*end != '\0') | |
773 | goto invalid; | |
774 | } | |
775 | ||
776 | if (((value << shift) >> shift) != value) | |
777 | goto invalid; | |
778 | ||
779 | *pvalue = value << shift; | |
780 | return true; | |
781 | ||
782 | invalid: | |
783 | gomp_error ("Invalid value for environment variable %s", name); | |
784 | return false; | |
785 | } | |
786 | ||
787 | /* Parse the GOMP_SPINCOUNT environment varible. Return true if one was | |
788 | present and it was successfully parsed. */ | |
789 | ||
790 | static bool | |
791 | parse_spincount (const char *name, unsigned long long *pvalue) | |
792 | { | |
793 | char *env, *end; | |
794 | unsigned long long value, mult = 1; | |
795 | ||
796 | env = getenv (name); | |
797 | if (env == NULL) | |
798 | return false; | |
799 | ||
800 | while (isspace ((unsigned char) *env)) | |
801 | ++env; | |
802 | if (*env == '\0') | |
803 | goto invalid; | |
804 | ||
805 | if (strncasecmp (env, "infinite", 8) == 0 | |
806 | || strncasecmp (env, "infinity", 8) == 0) | |
807 | { | |
808 | value = ~0ULL; | |
809 | end = env + 8; | |
810 | goto check_tail; | |
811 | } | |
812 | ||
813 | errno = 0; | |
814 | value = strtoull (env, &end, 10); | |
815 | if (errno) | |
816 | goto invalid; | |
817 | ||
818 | while (isspace ((unsigned char) *end)) | |
819 | ++end; | |
820 | if (*end != '\0') | |
821 | { | |
323ff903 | 822 | switch (tolower ((unsigned char) *end)) |
a68ab351 JJ |
823 | { |
824 | case 'k': | |
825 | mult = 1000LL; | |
826 | break; | |
827 | case 'm': | |
828 | mult = 1000LL * 1000LL; | |
829 | break; | |
830 | case 'g': | |
831 | mult = 1000LL * 1000LL * 1000LL; | |
832 | break; | |
833 | case 't': | |
834 | mult = 1000LL * 1000LL * 1000LL * 1000LL; | |
835 | break; | |
836 | default: | |
837 | goto invalid; | |
838 | } | |
839 | ++end; | |
840 | check_tail: | |
841 | while (isspace ((unsigned char) *end)) | |
842 | ++end; | |
843 | if (*end != '\0') | |
844 | goto invalid; | |
845 | } | |
846 | ||
847 | if (value > ~0ULL / mult) | |
848 | value = ~0ULL; | |
849 | else | |
850 | value *= mult; | |
851 | ||
852 | *pvalue = value; | |
853 | return true; | |
854 | ||
855 | invalid: | |
856 | gomp_error ("Invalid value for environment variable %s", name); | |
857 | return false; | |
858 | } | |
859 | ||
860 | /* Parse a boolean value for environment variable NAME and store the | |
953ff289 DN |
861 | result in VALUE. */ |
862 | ||
863 | static void | |
864 | parse_boolean (const char *name, bool *value) | |
865 | { | |
866 | const char *env; | |
867 | ||
868 | env = getenv (name); | |
869 | if (env == NULL) | |
870 | return; | |
871 | ||
89b3e3cd JJ |
872 | while (isspace ((unsigned char) *env)) |
873 | ++env; | |
874 | if (strncasecmp (env, "true", 4) == 0) | |
875 | { | |
876 | *value = true; | |
877 | env += 4; | |
878 | } | |
879 | else if (strncasecmp (env, "false", 5) == 0) | |
880 | { | |
881 | *value = false; | |
882 | env += 5; | |
883 | } | |
953ff289 | 884 | else |
89b3e3cd JJ |
885 | env = "X"; |
886 | while (isspace ((unsigned char) *env)) | |
887 | ++env; | |
888 | if (*env != '\0') | |
d0d1b24d | 889 | gomp_error ("Invalid value for environment variable %s", name); |
953ff289 DN |
890 | } |
891 | ||
a68ab351 JJ |
892 | /* Parse the OMP_WAIT_POLICY environment variable and store the |
893 | result in gomp_active_wait_policy. */ | |
894 | ||
895 | static int | |
896 | parse_wait_policy (void) | |
897 | { | |
898 | const char *env; | |
899 | int ret = -1; | |
900 | ||
901 | env = getenv ("OMP_WAIT_POLICY"); | |
902 | if (env == NULL) | |
903 | return -1; | |
904 | ||
905 | while (isspace ((unsigned char) *env)) | |
906 | ++env; | |
907 | if (strncasecmp (env, "active", 6) == 0) | |
908 | { | |
909 | ret = 1; | |
910 | env += 6; | |
911 | } | |
912 | else if (strncasecmp (env, "passive", 7) == 0) | |
913 | { | |
914 | ret = 0; | |
915 | env += 7; | |
916 | } | |
917 | else | |
918 | env = "X"; | |
919 | while (isspace ((unsigned char) *env)) | |
920 | ++env; | |
921 | if (*env == '\0') | |
922 | return ret; | |
923 | gomp_error ("Invalid value for environment variable OMP_WAIT_POLICY"); | |
924 | return -1; | |
925 | } | |
926 | ||
a0884cf0 JJ |
927 | /* Parse the GOMP_CPU_AFFINITY environment varible. Return true if one was |
928 | present and it was successfully parsed. */ | |
929 | ||
930 | static bool | |
f89163fd | 931 | parse_affinity (bool ignore) |
a0884cf0 | 932 | { |
acf0174b JJ |
933 | char *env, *end, *start; |
934 | int pass; | |
a0884cf0 | 935 | unsigned long cpu_beg, cpu_end, cpu_stride; |
acf0174b | 936 | size_t count = 0, needed; |
a0884cf0 JJ |
937 | |
938 | env = getenv ("GOMP_CPU_AFFINITY"); | |
939 | if (env == NULL) | |
940 | return false; | |
941 | ||
acf0174b JJ |
942 | start = env; |
943 | for (pass = 0; pass < 2; pass++) | |
a0884cf0 | 944 | { |
acf0174b JJ |
945 | env = start; |
946 | if (pass == 1) | |
a0884cf0 | 947 | { |
f89163fd JJ |
948 | if (ignore) |
949 | return false; | |
950 | ||
acf0174b JJ |
951 | gomp_places_list_len = 0; |
952 | gomp_places_list = gomp_affinity_alloc (count, true); | |
953 | if (gomp_places_list == NULL) | |
954 | return false; | |
955 | } | |
956 | do | |
957 | { | |
958 | while (isspace ((unsigned char) *env)) | |
959 | ++env; | |
960 | ||
961 | errno = 0; | |
962 | cpu_beg = strtoul (env, &end, 0); | |
963 | if (errno || cpu_beg >= 65536) | |
a0884cf0 | 964 | goto invalid; |
acf0174b JJ |
965 | cpu_end = cpu_beg; |
966 | cpu_stride = 1; | |
a0884cf0 JJ |
967 | |
968 | env = end; | |
acf0174b | 969 | if (*env == '-') |
a0884cf0 | 970 | { |
acf0174b JJ |
971 | errno = 0; |
972 | cpu_end = strtoul (++env, &end, 0); | |
973 | if (errno || cpu_end >= 65536 || cpu_end < cpu_beg) | |
a0884cf0 JJ |
974 | goto invalid; |
975 | ||
976 | env = end; | |
acf0174b JJ |
977 | if (*env == ':') |
978 | { | |
979 | errno = 0; | |
980 | cpu_stride = strtoul (++env, &end, 0); | |
981 | if (errno || cpu_stride == 0 || cpu_stride >= 65536) | |
982 | goto invalid; | |
a0884cf0 | 983 | |
acf0174b JJ |
984 | env = end; |
985 | } | |
986 | } | |
a0884cf0 | 987 | |
acf0174b JJ |
988 | needed = (cpu_end - cpu_beg) / cpu_stride + 1; |
989 | if (pass == 0) | |
990 | count += needed; | |
a0884cf0 | 991 | else |
a0884cf0 | 992 | { |
acf0174b JJ |
993 | while (needed--) |
994 | { | |
995 | void *p = gomp_places_list[gomp_places_list_len]; | |
996 | gomp_affinity_init_place (p); | |
997 | if (gomp_affinity_add_cpus (p, cpu_beg, 1, 0, true)) | |
998 | ++gomp_places_list_len; | |
999 | cpu_beg += cpu_stride; | |
1000 | } | |
a0884cf0 JJ |
1001 | } |
1002 | ||
acf0174b JJ |
1003 | while (isspace ((unsigned char) *env)) |
1004 | ++env; | |
a0884cf0 | 1005 | |
acf0174b JJ |
1006 | if (*env == ',') |
1007 | env++; | |
1008 | else if (*env == '\0') | |
1009 | break; | |
a0884cf0 | 1010 | } |
acf0174b | 1011 | while (1); |
a0884cf0 | 1012 | } |
a0884cf0 | 1013 | |
acf0174b JJ |
1014 | if (gomp_places_list_len == 0) |
1015 | { | |
1016 | free (gomp_places_list); | |
1017 | gomp_places_list = NULL; | |
f89163fd | 1018 | return false; |
acf0174b | 1019 | } |
a0884cf0 JJ |
1020 | return true; |
1021 | ||
1022 | invalid: | |
1023 | gomp_error ("Invalid value for enviroment variable GOMP_CPU_AFFINITY"); | |
1024 | return false; | |
1025 | } | |
1026 | ||
41dbbb37 TS |
1027 | static void |
1028 | parse_acc_device_type (void) | |
1029 | { | |
1030 | const char *env = getenv ("ACC_DEVICE_TYPE"); | |
1031 | ||
1032 | if (env && *env != '\0') | |
1033 | goacc_device_type = strdup (env); | |
1034 | else | |
1035 | goacc_device_type = NULL; | |
1036 | } | |
acf0174b JJ |
1037 | |
1038 | static void | |
1039 | handle_omp_display_env (unsigned long stacksize, int wait_policy) | |
1040 | { | |
1041 | const char *env; | |
1042 | bool display = false; | |
1043 | bool verbose = false; | |
1044 | int i; | |
1045 | ||
1046 | env = getenv ("OMP_DISPLAY_ENV"); | |
1047 | if (env == NULL) | |
1048 | return; | |
1049 | ||
1050 | while (isspace ((unsigned char) *env)) | |
1051 | ++env; | |
1052 | if (strncasecmp (env, "true", 4) == 0) | |
1053 | { | |
1054 | display = true; | |
1055 | env += 4; | |
1056 | } | |
1057 | else if (strncasecmp (env, "false", 5) == 0) | |
1058 | { | |
1059 | display = false; | |
1060 | env += 5; | |
1061 | } | |
1062 | else if (strncasecmp (env, "verbose", 7) == 0) | |
1063 | { | |
1064 | display = true; | |
1065 | verbose = true; | |
1066 | env += 7; | |
1067 | } | |
1068 | else | |
1069 | env = "X"; | |
1070 | while (isspace ((unsigned char) *env)) | |
1071 | ++env; | |
1072 | if (*env != '\0') | |
1073 | gomp_error ("Invalid value for environment variable OMP_DISPLAY_ENV"); | |
1074 | ||
1075 | if (!display) | |
1076 | return; | |
1077 | ||
1078 | fputs ("\nOPENMP DISPLAY ENVIRONMENT BEGIN\n", stderr); | |
1079 | ||
d9a6bd32 | 1080 | fputs (" _OPENMP = '201511'\n", stderr); |
acf0174b JJ |
1081 | fprintf (stderr, " OMP_DYNAMIC = '%s'\n", |
1082 | gomp_global_icv.dyn_var ? "TRUE" : "FALSE"); | |
1083 | fprintf (stderr, " OMP_NESTED = '%s'\n", | |
1084 | gomp_global_icv.nest_var ? "TRUE" : "FALSE"); | |
1085 | ||
1086 | fprintf (stderr, " OMP_NUM_THREADS = '%lu", gomp_global_icv.nthreads_var); | |
1087 | for (i = 1; i < gomp_nthreads_var_list_len; i++) | |
1088 | fprintf (stderr, ",%lu", gomp_nthreads_var_list[i]); | |
1089 | fputs ("'\n", stderr); | |
1090 | ||
1091 | fprintf (stderr, " OMP_SCHEDULE = '"); | |
1092 | switch (gomp_global_icv.run_sched_var) | |
1093 | { | |
1094 | case GFS_RUNTIME: | |
1095 | fputs ("RUNTIME", stderr); | |
1096 | break; | |
1097 | case GFS_STATIC: | |
1098 | fputs ("STATIC", stderr); | |
1099 | break; | |
1100 | case GFS_DYNAMIC: | |
1101 | fputs ("DYNAMIC", stderr); | |
1102 | break; | |
1103 | case GFS_GUIDED: | |
1104 | fputs ("GUIDED", stderr); | |
1105 | break; | |
1106 | case GFS_AUTO: | |
1107 | fputs ("AUTO", stderr); | |
1108 | break; | |
1109 | } | |
1110 | fputs ("'\n", stderr); | |
1111 | ||
1112 | fputs (" OMP_PROC_BIND = '", stderr); | |
1113 | switch (gomp_global_icv.bind_var) | |
1114 | { | |
1115 | case omp_proc_bind_false: | |
1116 | fputs ("FALSE", stderr); | |
1117 | break; | |
1118 | case omp_proc_bind_true: | |
1119 | fputs ("TRUE", stderr); | |
1120 | break; | |
1121 | case omp_proc_bind_master: | |
1122 | fputs ("MASTER", stderr); | |
1123 | break; | |
1124 | case omp_proc_bind_close: | |
1125 | fputs ("CLOSE", stderr); | |
1126 | break; | |
1127 | case omp_proc_bind_spread: | |
1128 | fputs ("SPREAD", stderr); | |
1129 | break; | |
1130 | } | |
1131 | for (i = 1; i < gomp_bind_var_list_len; i++) | |
1132 | switch (gomp_bind_var_list[i]) | |
1133 | { | |
1134 | case omp_proc_bind_master: | |
1135 | fputs (",MASTER", stderr); | |
1136 | break; | |
1137 | case omp_proc_bind_close: | |
1138 | fputs (",CLOSE", stderr); | |
1139 | break; | |
1140 | case omp_proc_bind_spread: | |
1141 | fputs (",SPREAD", stderr); | |
1142 | break; | |
1143 | } | |
1144 | fputs ("'\n", stderr); | |
1145 | fputs (" OMP_PLACES = '", stderr); | |
1146 | for (i = 0; i < gomp_places_list_len; i++) | |
1147 | { | |
1148 | fputs ("{", stderr); | |
1149 | gomp_affinity_print_place (gomp_places_list[i]); | |
1150 | fputs (i + 1 == gomp_places_list_len ? "}" : "},", stderr); | |
1151 | } | |
1152 | fputs ("'\n", stderr); | |
1153 | ||
1154 | fprintf (stderr, " OMP_STACKSIZE = '%lu'\n", stacksize); | |
1155 | ||
1156 | /* GOMP's default value is actually neither active nor passive. */ | |
1157 | fprintf (stderr, " OMP_WAIT_POLICY = '%s'\n", | |
1158 | wait_policy > 0 ? "ACTIVE" : "PASSIVE"); | |
1159 | fprintf (stderr, " OMP_THREAD_LIMIT = '%u'\n", | |
1160 | gomp_global_icv.thread_limit_var); | |
1161 | fprintf (stderr, " OMP_MAX_ACTIVE_LEVELS = '%lu'\n", | |
1162 | gomp_max_active_levels_var); | |
1163 | ||
1164 | fprintf (stderr, " OMP_CANCELLATION = '%s'\n", | |
1165 | gomp_cancel_var ? "TRUE" : "FALSE"); | |
1166 | fprintf (stderr, " OMP_DEFAULT_DEVICE = '%d'\n", | |
1167 | gomp_global_icv.default_device_var); | |
d9a6bd32 JJ |
1168 | fprintf (stderr, " OMP_MAX_TASK_PRIORITY = '%d'\n", |
1169 | gomp_max_task_priority_var); | |
acf0174b JJ |
1170 | |
1171 | if (verbose) | |
1172 | { | |
1173 | fputs (" GOMP_CPU_AFFINITY = ''\n", stderr); | |
1174 | fprintf (stderr, " GOMP_STACKSIZE = '%lu'\n", stacksize); | |
1175 | #ifdef HAVE_INTTYPES_H | |
1176 | fprintf (stderr, " GOMP_SPINCOUNT = '%"PRIu64"'\n", | |
1177 | (uint64_t) gomp_spin_count_var); | |
1178 | #else | |
1179 | fprintf (stderr, " GOMP_SPINCOUNT = '%lu'\n", | |
1180 | (unsigned long) gomp_spin_count_var); | |
1181 | #endif | |
1182 | } | |
1183 | ||
1184 | fputs ("OPENMP DISPLAY ENVIRONMENT END\n", stderr); | |
1185 | } | |
1186 | ||
1187 | ||
953ff289 DN |
1188 | static void __attribute__((constructor)) |
1189 | initialize_env (void) | |
1190 | { | |
c4060df4 | 1191 | unsigned long thread_limit_var, stacksize = GOMP_DEFAULT_STACKSIZE; |
a68ab351 | 1192 | int wait_policy; |
d0d1b24d | 1193 | |
953ff289 DN |
1194 | /* Do a compile time check that mkomp_h.pl did good job. */ |
1195 | omp_check_defines (); | |
1196 | ||
1197 | parse_schedule (); | |
a68ab351 JJ |
1198 | parse_boolean ("OMP_DYNAMIC", &gomp_global_icv.dyn_var); |
1199 | parse_boolean ("OMP_NESTED", &gomp_global_icv.nest_var); | |
acf0174b JJ |
1200 | parse_boolean ("OMP_CANCELLATION", &gomp_cancel_var); |
1201 | parse_int ("OMP_DEFAULT_DEVICE", &gomp_global_icv.default_device_var, true); | |
d9a6bd32 | 1202 | parse_int ("OMP_MAX_TASK_PRIORITY", &gomp_max_task_priority_var, true); |
80f046cc JJ |
1203 | parse_unsigned_long ("OMP_MAX_ACTIVE_LEVELS", &gomp_max_active_levels_var, |
1204 | true); | |
acf0174b JJ |
1205 | if (parse_unsigned_long ("OMP_THREAD_LIMIT", &thread_limit_var, false)) |
1206 | { | |
1207 | gomp_global_icv.thread_limit_var | |
1208 | = thread_limit_var > INT_MAX ? UINT_MAX : thread_limit_var; | |
1209 | } | |
41dbbb37 | 1210 | parse_int ("GOMP_DEBUG", &gomp_debug_var, true); |
a68ab351 | 1211 | #ifndef HAVE_SYNC_BUILTINS |
acf0174b | 1212 | gomp_mutex_init (&gomp_managed_threads_lock); |
a68ab351 | 1213 | #endif |
a68ab351 JJ |
1214 | gomp_init_num_threads (); |
1215 | gomp_available_cpus = gomp_global_icv.nthreads_var; | |
20906c66 JJ |
1216 | if (!parse_unsigned_long_list ("OMP_NUM_THREADS", |
1217 | &gomp_global_icv.nthreads_var, | |
1218 | &gomp_nthreads_var_list, | |
1219 | &gomp_nthreads_var_list_len)) | |
a68ab351 | 1220 | gomp_global_icv.nthreads_var = gomp_available_cpus; |
f89163fd JJ |
1221 | bool ignore = false; |
1222 | if (parse_bind_var ("OMP_PROC_BIND", | |
1223 | &gomp_global_icv.bind_var, | |
1224 | &gomp_bind_var_list, | |
1225 | &gomp_bind_var_list_len) | |
1226 | && gomp_global_icv.bind_var == omp_proc_bind_false) | |
1227 | ignore = true; | |
1228 | /* Make sure OMP_PLACES and GOMP_CPU_AFFINITY env vars are always | |
1229 | parsed if present in the environment. If OMP_PROC_BIND was set | |
1230 | explictly to false, don't populate places list though. If places | |
1231 | list was successfully set from OMP_PLACES, only parse but don't process | |
1232 | GOMP_CPU_AFFINITY. If OMP_PROC_BIND was not set in the environment, | |
1233 | default to OMP_PROC_BIND=true if OMP_PLACES or GOMP_CPU_AFFINITY | |
1234 | was successfully parsed into a places list, otherwise to | |
1235 | OMP_PROC_BIND=false. */ | |
1236 | if (parse_places_var ("OMP_PLACES", ignore)) | |
1237 | { | |
1238 | if (gomp_global_icv.bind_var == omp_proc_bind_false) | |
1239 | gomp_global_icv.bind_var = true; | |
1240 | ignore = true; | |
1241 | } | |
1242 | if (parse_affinity (ignore)) | |
1243 | { | |
1244 | if (gomp_global_icv.bind_var == omp_proc_bind_false) | |
1245 | gomp_global_icv.bind_var = true; | |
1246 | ignore = true; | |
1247 | } | |
1248 | if (gomp_global_icv.bind_var != omp_proc_bind_false) | |
a0884cf0 | 1249 | gomp_init_affinity (); |
a68ab351 JJ |
1250 | wait_policy = parse_wait_policy (); |
1251 | if (!parse_spincount ("GOMP_SPINCOUNT", &gomp_spin_count_var)) | |
1252 | { | |
1253 | /* Using a rough estimation of 100000 spins per msec, | |
1254 | use 5 min blocking for OMP_WAIT_POLICY=active, | |
4c698cf8 | 1255 | 3 msec blocking when OMP_WAIT_POLICY is not specificed |
a68ab351 JJ |
1256 | and 0 when OMP_WAIT_POLICY=passive. |
1257 | Depending on the CPU speed, this can be e.g. 5 times longer | |
1258 | or 5 times shorter. */ | |
1259 | if (wait_policy > 0) | |
1260 | gomp_spin_count_var = 30000000000LL; | |
1261 | else if (wait_policy < 0) | |
4c698cf8 | 1262 | gomp_spin_count_var = 300000LL; |
a68ab351 JJ |
1263 | } |
1264 | /* gomp_throttled_spin_count_var is used when there are more libgomp | |
1265 | managed threads than available CPUs. Use very short spinning. */ | |
1266 | if (wait_policy > 0) | |
1267 | gomp_throttled_spin_count_var = 1000LL; | |
1268 | else if (wait_policy < 0) | |
1269 | gomp_throttled_spin_count_var = 100LL; | |
1270 | if (gomp_throttled_spin_count_var > gomp_spin_count_var) | |
1271 | gomp_throttled_spin_count_var = gomp_spin_count_var; | |
d0d1b24d RH |
1272 | |
1273 | /* Not strictly environment related, but ordering constructors is tricky. */ | |
1274 | pthread_attr_init (&gomp_thread_attr); | |
1275 | pthread_attr_setdetachstate (&gomp_thread_attr, PTHREAD_CREATE_DETACHED); | |
1276 | ||
a68ab351 | 1277 | if (parse_stacksize ("OMP_STACKSIZE", &stacksize) |
c4060df4 JJ |
1278 | || parse_stacksize ("GOMP_STACKSIZE", &stacksize) |
1279 | || GOMP_DEFAULT_STACKSIZE) | |
d0d1b24d | 1280 | { |
c3b11a40 RH |
1281 | int err; |
1282 | ||
c3b11a40 RH |
1283 | err = pthread_attr_setstacksize (&gomp_thread_attr, stacksize); |
1284 | ||
1285 | #ifdef PTHREAD_STACK_MIN | |
1286 | if (err == EINVAL) | |
d0d1b24d | 1287 | { |
c3b11a40 RH |
1288 | if (stacksize < PTHREAD_STACK_MIN) |
1289 | gomp_error ("Stack size less than minimum of %luk", | |
1290 | PTHREAD_STACK_MIN / 1024ul | |
1291 | + (PTHREAD_STACK_MIN % 1024 != 0)); | |
1292 | else | |
d0d1b24d | 1293 | gomp_error ("Stack size larger than system limit"); |
d0d1b24d | 1294 | } |
c3b11a40 RH |
1295 | else |
1296 | #endif | |
1297 | if (err != 0) | |
1298 | gomp_error ("Stack size change failed: %s", strerror (err)); | |
d0d1b24d | 1299 | } |
acf0174b JJ |
1300 | |
1301 | handle_omp_display_env (stacksize, wait_policy); | |
41dbbb37 TS |
1302 | |
1303 | /* OpenACC. */ | |
1304 | ||
1305 | if (!parse_int ("ACC_DEVICE_NUM", &goacc_device_num, true)) | |
1306 | goacc_device_num = 0; | |
1307 | ||
1308 | parse_acc_device_type (); | |
1309 | ||
1310 | goacc_runtime_initialize (); | |
953ff289 | 1311 | } |
630e3c3a | 1312 | #endif /* LIBGOMP_OFFLOADED_ONLY */ |