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fbd26352 | 1 | /* Copyright (C) 2005-2019 Free Software Foundation, Inc. |
1e8e9920 | 2 | Contributed by Richard Henderson <rth@redhat.com>. |
3 | ||
c35c9a62 | 4 | This file is part of the GNU Offloading and Multi Processing Library |
5 | (libgomp). | |
1e8e9920 | 6 | |
7 | Libgomp is free software; you can redistribute it and/or modify it | |
6bc9506f | 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. | |
1e8e9920 | 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 | |
6bc9506f | 14 | FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
1e8e9920 | 15 | more details. |
16 | ||
6bc9506f | 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. | |
1e8e9920 | 20 | |
6bc9506f | 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/>. */ | |
1e8e9920 | 25 | |
26cc6808 | 26 | /* This file defines the OpenMP internal control variables and arranges |
27 | for them to be initialized from environment variables at startup. */ | |
1e8e9920 | 28 | |
e9f3b6c9 | 29 | #define _GNU_SOURCE |
1e8e9920 | 30 | #include "libgomp.h" |
26cc6808 | 31 | #include "gomp-constants.h" |
32 | #include <limits.h> | |
33 | #ifndef LIBGOMP_OFFLOADED_ONLY | |
1e8e9920 | 34 | #include "libgomp_f.h" |
ca4c3545 | 35 | #include "oacc-int.h" |
8278bf29 | 36 | #include <ctype.h> |
1e8e9920 | 37 | #include <stdlib.h> |
bc7bff74 | 38 | #include <stdio.h> |
39 | #ifdef HAVE_INTTYPES_H | |
40 | # include <inttypes.h> /* For PRIu64. */ | |
41 | #endif | |
ab7cd804 | 42 | #ifdef STRING_WITH_STRINGS |
43 | # include <string.h> | |
44 | # include <strings.h> | |
45 | #else | |
46 | # ifdef HAVE_STRING_H | |
47 | # include <string.h> | |
48 | # else | |
49 | # ifdef HAVE_STRINGS_H | |
50 | # include <strings.h> | |
51 | # endif | |
52 | # endif | |
53 | #endif | |
ba893327 | 54 | #include <errno.h> |
cd34a2a4 | 55 | #include "thread-stacksize.h" |
1e8e9920 | 56 | |
17f4f6cb | 57 | #ifndef HAVE_STRTOULL |
58 | # define strtoull(ptr, eptr, base) strtoul (ptr, eptr, base) | |
59 | #endif | |
26cc6808 | 60 | #endif /* LIBGOMP_OFFLOADED_ONLY */ |
61 | ||
e9f3b6c9 | 62 | #include "secure_getenv.h" |
63 | ||
26cc6808 | 64 | struct gomp_task_icv gomp_global_icv = { |
65 | .nthreads_var = 1, | |
66 | .thread_limit_var = UINT_MAX, | |
67 | .run_sched_var = GFS_DYNAMIC, | |
68 | .run_sched_chunk_size = 1, | |
69 | .default_device_var = 0, | |
70 | .dyn_var = false, | |
71 | .nest_var = false, | |
72 | .bind_var = omp_proc_bind_false, | |
73 | .target_data = NULL | |
74 | }; | |
75 | ||
76 | unsigned long gomp_max_active_levels_var = INT_MAX; | |
77 | bool gomp_cancel_var = false; | |
78 | int gomp_max_task_priority_var = 0; | |
79 | #ifndef HAVE_SYNC_BUILTINS | |
80 | gomp_mutex_t gomp_managed_threads_lock; | |
81 | #endif | |
82 | unsigned long gomp_available_cpus = 1, gomp_managed_threads = 1; | |
83 | unsigned long long gomp_spin_count_var, gomp_throttled_spin_count_var; | |
84 | unsigned long *gomp_nthreads_var_list, gomp_nthreads_var_list_len; | |
85 | char *gomp_bind_var_list; | |
86 | unsigned long gomp_bind_var_list_len; | |
87 | void **gomp_places_list; | |
88 | unsigned long gomp_places_list_len; | |
89 | int gomp_debug_var; | |
90 | unsigned int gomp_num_teams_var; | |
7e5a76c8 | 91 | bool gomp_display_affinity_var; |
92 | char *gomp_affinity_format_var = "level %L thread %i affinity %A"; | |
93 | size_t gomp_affinity_format_len; | |
26cc6808 | 94 | char *goacc_device_type; |
95 | int goacc_device_num; | |
8655b2ce | 96 | int goacc_default_dims[GOMP_DIM_MAX]; |
26cc6808 | 97 | |
98 | #ifndef LIBGOMP_OFFLOADED_ONLY | |
1e8e9920 | 99 | |
1e8e9920 | 100 | /* Parse the OMP_SCHEDULE environment variable. */ |
101 | ||
102 | static void | |
103 | parse_schedule (void) | |
104 | { | |
105 | char *env, *end; | |
168d85f0 | 106 | unsigned long value; |
7e5a76c8 | 107 | int monotonic = 0; |
1e8e9920 | 108 | |
109 | env = getenv ("OMP_SCHEDULE"); | |
110 | if (env == NULL) | |
111 | return; | |
112 | ||
8278bf29 | 113 | while (isspace ((unsigned char) *env)) |
114 | ++env; | |
7e5a76c8 | 115 | if (strncasecmp (env, "monotonic", 9) == 0) |
116 | { | |
117 | monotonic = 1; | |
118 | env += 9; | |
119 | } | |
120 | else if (strncasecmp (env, "nonmonotonic", 12) == 0) | |
121 | { | |
122 | monotonic = -1; | |
123 | env += 12; | |
124 | } | |
125 | if (monotonic) | |
126 | { | |
127 | while (isspace ((unsigned char) *env)) | |
128 | ++env; | |
129 | if (*env != ':') | |
130 | goto unknown; | |
131 | ++env; | |
132 | while (isspace ((unsigned char) *env)) | |
133 | ++env; | |
134 | } | |
8278bf29 | 135 | if (strncasecmp (env, "static", 6) == 0) |
1e8e9920 | 136 | { |
fd6481cf | 137 | gomp_global_icv.run_sched_var = GFS_STATIC; |
1e8e9920 | 138 | env += 6; |
139 | } | |
8278bf29 | 140 | else if (strncasecmp (env, "dynamic", 7) == 0) |
1e8e9920 | 141 | { |
fd6481cf | 142 | gomp_global_icv.run_sched_var = GFS_DYNAMIC; |
1e8e9920 | 143 | env += 7; |
144 | } | |
8278bf29 | 145 | else if (strncasecmp (env, "guided", 6) == 0) |
1e8e9920 | 146 | { |
fd6481cf | 147 | gomp_global_icv.run_sched_var = GFS_GUIDED; |
1e8e9920 | 148 | env += 6; |
149 | } | |
fd6481cf | 150 | else if (strncasecmp (env, "auto", 4) == 0) |
151 | { | |
152 | gomp_global_icv.run_sched_var = GFS_AUTO; | |
153 | env += 4; | |
154 | } | |
1e8e9920 | 155 | else |
156 | goto unknown; | |
157 | ||
7e5a76c8 | 158 | if (monotonic == 1 |
159 | || (monotonic == 0 && gomp_global_icv.run_sched_var == GFS_STATIC)) | |
160 | gomp_global_icv.run_sched_var |= GFS_MONOTONIC; | |
161 | ||
8278bf29 | 162 | while (isspace ((unsigned char) *env)) |
163 | ++env; | |
1e8e9920 | 164 | if (*env == '\0') |
31712e83 | 165 | { |
43895be5 | 166 | gomp_global_icv.run_sched_chunk_size |
7e5a76c8 | 167 | = (gomp_global_icv.run_sched_var & ~GFS_MONOTONIC) != GFS_STATIC; |
31712e83 | 168 | return; |
169 | } | |
8278bf29 | 170 | if (*env++ != ',') |
1e8e9920 | 171 | goto unknown; |
8278bf29 | 172 | while (isspace ((unsigned char) *env)) |
173 | ++env; | |
1e8e9920 | 174 | if (*env == '\0') |
1e8e9920 | 175 | goto invalid; |
176 | ||
168d85f0 | 177 | errno = 0; |
178 | value = strtoul (env, &end, 10); | |
179 | if (errno) | |
180 | goto invalid; | |
181 | ||
8278bf29 | 182 | while (isspace ((unsigned char) *end)) |
183 | ++end; | |
1e8e9920 | 184 | if (*end != '\0') |
185 | goto invalid; | |
168d85f0 | 186 | |
fd6481cf | 187 | if ((int)value != value) |
188 | goto invalid; | |
189 | ||
7e5a76c8 | 190 | if (value == 0 |
191 | && (gomp_global_icv.run_sched_var & ~GFS_MONOTONIC) != GFS_STATIC) | |
31712e83 | 192 | value = 1; |
43895be5 | 193 | gomp_global_icv.run_sched_chunk_size = value; |
1e8e9920 | 194 | return; |
195 | ||
196 | unknown: | |
197 | gomp_error ("Unknown value for environment variable OMP_SCHEDULE"); | |
198 | return; | |
199 | ||
200 | invalid: | |
201 | gomp_error ("Invalid value for chunk size in " | |
202 | "environment variable OMP_SCHEDULE"); | |
1e8e9920 | 203 | return; |
204 | } | |
205 | ||
fd6481cf | 206 | /* Parse an unsigned long environment variable. Return true if one was |
e9f3b6c9 | 207 | present and it was successfully parsed. If SECURE, use secure_getenv to the |
208 | environment variable. */ | |
1e8e9920 | 209 | |
210 | static bool | |
e9f3b6c9 | 211 | parse_unsigned_long_1 (const char *name, unsigned long *pvalue, bool allow_zero, |
212 | bool secure) | |
1e8e9920 | 213 | { |
214 | char *env, *end; | |
ba893327 | 215 | unsigned long value; |
1e8e9920 | 216 | |
e9f3b6c9 | 217 | env = (secure ? secure_getenv (name) : getenv (name)); |
1e8e9920 | 218 | if (env == NULL) |
219 | return false; | |
220 | ||
8278bf29 | 221 | while (isspace ((unsigned char) *env)) |
222 | ++env; | |
1e8e9920 | 223 | if (*env == '\0') |
224 | goto invalid; | |
225 | ||
168d85f0 | 226 | errno = 0; |
ba893327 | 227 | value = strtoul (env, &end, 10); |
0bdba776 | 228 | if (errno || (long) value <= 0 - allow_zero) |
168d85f0 | 229 | goto invalid; |
230 | ||
8278bf29 | 231 | while (isspace ((unsigned char) *end)) |
232 | ++end; | |
1e8e9920 | 233 | if (*end != '\0') |
234 | goto invalid; | |
ba893327 | 235 | |
236 | *pvalue = value; | |
1e8e9920 | 237 | return true; |
238 | ||
239 | invalid: | |
ba893327 | 240 | gomp_error ("Invalid value for environment variable %s", name); |
1e8e9920 | 241 | return false; |
242 | } | |
243 | ||
e9f3b6c9 | 244 | /* As parse_unsigned_long_1, but always use getenv. */ |
245 | ||
246 | static bool | |
247 | parse_unsigned_long (const char *name, unsigned long *pvalue, bool allow_zero) | |
248 | { | |
249 | return parse_unsigned_long_1 (name, pvalue, allow_zero, false); | |
250 | } | |
251 | ||
bc7bff74 | 252 | /* Parse a positive int environment variable. Return true if one was |
e9f3b6c9 | 253 | present and it was successfully parsed. If SECURE, use secure_getenv to the |
254 | environment variable. */ | |
bc7bff74 | 255 | |
256 | static bool | |
e9f3b6c9 | 257 | parse_int_1 (const char *name, int *pvalue, bool allow_zero, bool secure) |
bc7bff74 | 258 | { |
259 | unsigned long value; | |
e9f3b6c9 | 260 | if (!parse_unsigned_long_1 (name, &value, allow_zero, secure)) |
bc7bff74 | 261 | return false; |
262 | if (value > INT_MAX) | |
263 | { | |
264 | gomp_error ("Invalid value for environment variable %s", name); | |
265 | return false; | |
266 | } | |
267 | *pvalue = (int) value; | |
268 | return true; | |
269 | } | |
270 | ||
e9f3b6c9 | 271 | /* As parse_int_1, but use getenv. */ |
272 | ||
273 | static bool | |
274 | parse_int (const char *name, int *pvalue, bool allow_zero) | |
275 | { | |
276 | return parse_int_1 (name, pvalue, allow_zero, false); | |
277 | } | |
278 | ||
279 | /* As parse_int_1, but use getenv_secure. */ | |
280 | ||
281 | static bool | |
282 | parse_int_secure (const char *name, int *pvalue, bool allow_zero) | |
283 | { | |
284 | return parse_int_1 (name, pvalue, allow_zero, true); | |
285 | } | |
286 | ||
2169f33b | 287 | /* Parse an unsigned long list environment variable. Return true if one was |
288 | present and it was successfully parsed. */ | |
289 | ||
290 | static bool | |
291 | parse_unsigned_long_list (const char *name, unsigned long *p1stvalue, | |
292 | unsigned long **pvalues, | |
293 | unsigned long *pnvalues) | |
294 | { | |
295 | char *env, *end; | |
296 | unsigned long value, *values = NULL; | |
297 | ||
298 | env = getenv (name); | |
299 | if (env == NULL) | |
300 | return false; | |
301 | ||
302 | while (isspace ((unsigned char) *env)) | |
303 | ++env; | |
304 | if (*env == '\0') | |
305 | goto invalid; | |
306 | ||
307 | errno = 0; | |
308 | value = strtoul (env, &end, 10); | |
309 | if (errno || (long) value <= 0) | |
310 | goto invalid; | |
311 | ||
312 | while (isspace ((unsigned char) *end)) | |
313 | ++end; | |
314 | if (*end != '\0') | |
315 | { | |
316 | if (*end == ',') | |
317 | { | |
318 | unsigned long nvalues = 0, nalloced = 0; | |
319 | ||
320 | do | |
321 | { | |
322 | env = end + 1; | |
323 | if (nvalues == nalloced) | |
324 | { | |
325 | unsigned long *n; | |
326 | nalloced = nalloced ? nalloced * 2 : 16; | |
327 | n = realloc (values, nalloced * sizeof (unsigned long)); | |
328 | if (n == NULL) | |
329 | { | |
330 | free (values); | |
331 | gomp_error ("Out of memory while trying to parse" | |
332 | " environment variable %s", name); | |
333 | return false; | |
334 | } | |
335 | values = n; | |
336 | if (nvalues == 0) | |
337 | values[nvalues++] = value; | |
338 | } | |
339 | ||
340 | while (isspace ((unsigned char) *env)) | |
341 | ++env; | |
342 | if (*env == '\0') | |
343 | goto invalid; | |
344 | ||
345 | errno = 0; | |
346 | value = strtoul (env, &end, 10); | |
347 | if (errno || (long) value <= 0) | |
348 | goto invalid; | |
349 | ||
350 | values[nvalues++] = value; | |
351 | while (isspace ((unsigned char) *end)) | |
352 | ++end; | |
353 | if (*end == '\0') | |
354 | break; | |
355 | if (*end != ',') | |
356 | goto invalid; | |
357 | } | |
358 | while (1); | |
359 | *p1stvalue = values[0]; | |
360 | *pvalues = values; | |
361 | *pnvalues = nvalues; | |
362 | return true; | |
363 | } | |
364 | goto invalid; | |
365 | } | |
366 | ||
367 | *p1stvalue = value; | |
368 | return true; | |
369 | ||
370 | invalid: | |
371 | free (values); | |
372 | gomp_error ("Invalid value for environment variable %s", name); | |
373 | return false; | |
374 | } | |
375 | ||
bc7bff74 | 376 | /* Parse environment variable set to a boolean or list of omp_proc_bind_t |
377 | enum values. Return true if one was present and it was successfully | |
378 | parsed. */ | |
379 | ||
380 | static bool | |
381 | parse_bind_var (const char *name, char *p1stvalue, | |
382 | char **pvalues, unsigned long *pnvalues) | |
383 | { | |
384 | char *env; | |
849b08ac | 385 | char value = omp_proc_bind_false, *values = NULL; |
bc7bff74 | 386 | int i; |
387 | static struct proc_bind_kinds | |
388 | { | |
389 | const char name[7]; | |
390 | const char len; | |
391 | omp_proc_bind_t kind; | |
392 | } kinds[] = | |
393 | { | |
394 | { "false", 5, omp_proc_bind_false }, | |
395 | { "true", 4, omp_proc_bind_true }, | |
396 | { "master", 6, omp_proc_bind_master }, | |
397 | { "close", 5, omp_proc_bind_close }, | |
398 | { "spread", 6, omp_proc_bind_spread } | |
399 | }; | |
400 | ||
401 | env = getenv (name); | |
402 | if (env == NULL) | |
403 | return false; | |
404 | ||
405 | while (isspace ((unsigned char) *env)) | |
406 | ++env; | |
407 | if (*env == '\0') | |
408 | goto invalid; | |
409 | ||
410 | for (i = 0; i < 5; i++) | |
411 | if (strncasecmp (env, kinds[i].name, kinds[i].len) == 0) | |
412 | { | |
413 | value = kinds[i].kind; | |
414 | env += kinds[i].len; | |
415 | break; | |
416 | } | |
417 | if (i == 5) | |
418 | goto invalid; | |
419 | ||
420 | while (isspace ((unsigned char) *env)) | |
421 | ++env; | |
422 | if (*env != '\0') | |
423 | { | |
424 | if (*env == ',') | |
425 | { | |
426 | unsigned long nvalues = 0, nalloced = 0; | |
427 | ||
428 | if (value == omp_proc_bind_false | |
429 | || value == omp_proc_bind_true) | |
430 | goto invalid; | |
431 | ||
432 | do | |
433 | { | |
434 | env++; | |
435 | if (nvalues == nalloced) | |
436 | { | |
437 | char *n; | |
438 | nalloced = nalloced ? nalloced * 2 : 16; | |
439 | n = realloc (values, nalloced); | |
440 | if (n == NULL) | |
441 | { | |
442 | free (values); | |
443 | gomp_error ("Out of memory while trying to parse" | |
444 | " environment variable %s", name); | |
445 | return false; | |
446 | } | |
447 | values = n; | |
448 | if (nvalues == 0) | |
449 | values[nvalues++] = value; | |
450 | } | |
451 | ||
452 | while (isspace ((unsigned char) *env)) | |
453 | ++env; | |
454 | if (*env == '\0') | |
455 | goto invalid; | |
456 | ||
457 | for (i = 2; i < 5; i++) | |
458 | if (strncasecmp (env, kinds[i].name, kinds[i].len) == 0) | |
459 | { | |
460 | value = kinds[i].kind; | |
461 | env += kinds[i].len; | |
462 | break; | |
463 | } | |
464 | if (i == 5) | |
465 | goto invalid; | |
466 | ||
467 | values[nvalues++] = value; | |
468 | while (isspace ((unsigned char) *env)) | |
469 | ++env; | |
470 | if (*env == '\0') | |
471 | break; | |
472 | if (*env != ',') | |
473 | goto invalid; | |
474 | } | |
475 | while (1); | |
476 | *p1stvalue = values[0]; | |
477 | *pvalues = values; | |
478 | *pnvalues = nvalues; | |
479 | return true; | |
480 | } | |
481 | goto invalid; | |
482 | } | |
483 | ||
484 | *p1stvalue = value; | |
485 | return true; | |
486 | ||
487 | invalid: | |
488 | free (values); | |
489 | gomp_error ("Invalid value for environment variable %s", name); | |
490 | return false; | |
491 | } | |
492 | ||
493 | static bool | |
494 | parse_one_place (char **envp, bool *negatep, unsigned long *lenp, | |
495 | long *stridep) | |
496 | { | |
497 | char *env = *envp, *start; | |
498 | void *p = gomp_places_list ? gomp_places_list[gomp_places_list_len] : NULL; | |
499 | unsigned long len = 1; | |
500 | long stride = 1; | |
501 | int pass; | |
502 | bool any_negate = false; | |
503 | *negatep = false; | |
504 | while (isspace ((unsigned char) *env)) | |
505 | ++env; | |
506 | if (*env == '!') | |
507 | { | |
508 | *negatep = true; | |
509 | ++env; | |
510 | while (isspace ((unsigned char) *env)) | |
511 | ++env; | |
512 | } | |
513 | if (*env != '{') | |
514 | return false; | |
515 | ++env; | |
516 | while (isspace ((unsigned char) *env)) | |
517 | ++env; | |
518 | start = env; | |
519 | for (pass = 0; pass < (any_negate ? 2 : 1); pass++) | |
520 | { | |
521 | env = start; | |
522 | do | |
523 | { | |
524 | unsigned long this_num, this_len = 1; | |
525 | long this_stride = 1; | |
526 | bool this_negate = (*env == '!'); | |
527 | if (this_negate) | |
528 | { | |
529 | if (gomp_places_list) | |
530 | any_negate = true; | |
531 | ++env; | |
532 | while (isspace ((unsigned char) *env)) | |
533 | ++env; | |
534 | } | |
535 | ||
536 | errno = 0; | |
537 | this_num = strtoul (env, &env, 10); | |
538 | if (errno) | |
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 | this_len = strtoul (env, &env, 10); | |
549 | if (errno || this_len == 0) | |
550 | return false; | |
551 | while (isspace ((unsigned char) *env)) | |
552 | ++env; | |
553 | if (*env == ':') | |
554 | { | |
555 | ++env; | |
556 | while (isspace ((unsigned char) *env)) | |
557 | ++env; | |
558 | errno = 0; | |
559 | this_stride = strtol (env, &env, 10); | |
560 | if (errno) | |
561 | return false; | |
562 | while (isspace ((unsigned char) *env)) | |
563 | ++env; | |
564 | } | |
565 | } | |
566 | if (this_negate && this_len != 1) | |
567 | return false; | |
568 | if (gomp_places_list && pass == this_negate) | |
569 | { | |
570 | if (this_negate) | |
571 | { | |
572 | if (!gomp_affinity_remove_cpu (p, this_num)) | |
573 | return false; | |
574 | } | |
575 | else if (!gomp_affinity_add_cpus (p, this_num, this_len, | |
576 | this_stride, false)) | |
577 | return false; | |
578 | } | |
579 | if (*env == '}') | |
580 | break; | |
581 | if (*env != ',') | |
582 | return false; | |
583 | ++env; | |
584 | } | |
585 | while (1); | |
586 | } | |
587 | ||
588 | ++env; | |
589 | while (isspace ((unsigned char) *env)) | |
590 | ++env; | |
591 | if (*env == ':') | |
592 | { | |
593 | ++env; | |
594 | while (isspace ((unsigned char) *env)) | |
595 | ++env; | |
596 | errno = 0; | |
597 | len = strtoul (env, &env, 10); | |
598 | if (errno || len == 0 || len >= 65536) | |
599 | return false; | |
600 | while (isspace ((unsigned char) *env)) | |
601 | ++env; | |
602 | if (*env == ':') | |
603 | { | |
604 | ++env; | |
605 | while (isspace ((unsigned char) *env)) | |
606 | ++env; | |
607 | errno = 0; | |
608 | stride = strtol (env, &env, 10); | |
609 | if (errno) | |
610 | return false; | |
611 | while (isspace ((unsigned char) *env)) | |
612 | ++env; | |
613 | } | |
614 | } | |
615 | if (*negatep && len != 1) | |
616 | return false; | |
617 | *envp = env; | |
618 | *lenp = len; | |
619 | *stridep = stride; | |
620 | return true; | |
621 | } | |
622 | ||
623 | static bool | |
4892de53 | 624 | parse_places_var (const char *name, bool ignore) |
bc7bff74 | 625 | { |
626 | char *env = getenv (name), *end; | |
627 | bool any_negate = false; | |
628 | int level = 0; | |
629 | unsigned long count = 0; | |
630 | if (env == NULL) | |
631 | return false; | |
632 | ||
633 | while (isspace ((unsigned char) *env)) | |
634 | ++env; | |
635 | if (*env == '\0') | |
636 | goto invalid; | |
637 | ||
638 | if (strncasecmp (env, "threads", 7) == 0) | |
639 | { | |
640 | env += 7; | |
641 | level = 1; | |
642 | } | |
643 | else if (strncasecmp (env, "cores", 5) == 0) | |
644 | { | |
645 | env += 5; | |
646 | level = 2; | |
647 | } | |
648 | else if (strncasecmp (env, "sockets", 7) == 0) | |
649 | { | |
650 | env += 7; | |
651 | level = 3; | |
652 | } | |
653 | if (level) | |
654 | { | |
655 | count = ULONG_MAX; | |
656 | while (isspace ((unsigned char) *env)) | |
657 | ++env; | |
658 | if (*env != '\0') | |
659 | { | |
660 | if (*env++ != '(') | |
661 | goto invalid; | |
662 | while (isspace ((unsigned char) *env)) | |
663 | ++env; | |
664 | ||
665 | errno = 0; | |
666 | count = strtoul (env, &end, 10); | |
667 | if (errno) | |
668 | goto invalid; | |
669 | env = end; | |
670 | while (isspace ((unsigned char) *env)) | |
671 | ++env; | |
672 | if (*env != ')') | |
673 | goto invalid; | |
674 | ++env; | |
675 | while (isspace ((unsigned char) *env)) | |
676 | ++env; | |
677 | if (*env != '\0') | |
678 | goto invalid; | |
679 | } | |
4892de53 | 680 | |
681 | if (ignore) | |
682 | return false; | |
683 | ||
bc7bff74 | 684 | return gomp_affinity_init_level (level, count, false); |
685 | } | |
686 | ||
687 | count = 0; | |
688 | end = env; | |
689 | do | |
690 | { | |
691 | bool negate; | |
692 | unsigned long len; | |
693 | long stride; | |
694 | if (!parse_one_place (&end, &negate, &len, &stride)) | |
695 | goto invalid; | |
696 | if (negate) | |
697 | { | |
698 | if (!any_negate) | |
699 | count++; | |
700 | any_negate = true; | |
701 | } | |
702 | else | |
703 | count += len; | |
704 | if (count > 65536) | |
705 | goto invalid; | |
706 | if (*end == '\0') | |
707 | break; | |
708 | if (*end != ',') | |
709 | goto invalid; | |
710 | end++; | |
711 | } | |
712 | while (1); | |
713 | ||
4892de53 | 714 | if (ignore) |
bc7bff74 | 715 | return false; |
716 | ||
717 | gomp_places_list_len = 0; | |
718 | gomp_places_list = gomp_affinity_alloc (count, false); | |
719 | if (gomp_places_list == NULL) | |
720 | return false; | |
721 | ||
722 | do | |
723 | { | |
724 | bool negate; | |
725 | unsigned long len; | |
726 | long stride; | |
727 | gomp_affinity_init_place (gomp_places_list[gomp_places_list_len]); | |
728 | if (!parse_one_place (&env, &negate, &len, &stride)) | |
729 | goto invalid; | |
730 | if (negate) | |
731 | { | |
732 | void *p; | |
733 | for (count = 0; count < gomp_places_list_len; count++) | |
734 | if (gomp_affinity_same_place | |
735 | (gomp_places_list[count], | |
736 | gomp_places_list[gomp_places_list_len])) | |
737 | break; | |
738 | if (count == gomp_places_list_len) | |
739 | { | |
740 | gomp_error ("Trying to remove a non-existing place from list " | |
741 | "of places"); | |
742 | goto invalid; | |
743 | } | |
744 | p = gomp_places_list[count]; | |
745 | memmove (&gomp_places_list[count], | |
746 | &gomp_places_list[count + 1], | |
747 | (gomp_places_list_len - count - 1) * sizeof (void *)); | |
748 | --gomp_places_list_len; | |
749 | gomp_places_list[gomp_places_list_len] = p; | |
750 | } | |
751 | else if (len == 1) | |
752 | ++gomp_places_list_len; | |
753 | else | |
754 | { | |
755 | for (count = 0; count < len - 1; count++) | |
756 | if (!gomp_affinity_copy_place | |
757 | (gomp_places_list[gomp_places_list_len + count + 1], | |
758 | gomp_places_list[gomp_places_list_len + count], | |
759 | stride)) | |
760 | goto invalid; | |
761 | gomp_places_list_len += len; | |
762 | } | |
763 | if (*env == '\0') | |
764 | break; | |
765 | env++; | |
766 | } | |
767 | while (1); | |
768 | ||
769 | if (gomp_places_list_len == 0) | |
770 | { | |
771 | gomp_error ("All places have been removed"); | |
772 | goto invalid; | |
773 | } | |
774 | if (!gomp_affinity_finalize_place_list (false)) | |
775 | goto invalid; | |
776 | return true; | |
777 | ||
778 | invalid: | |
779 | free (gomp_places_list); | |
780 | gomp_places_list = NULL; | |
781 | gomp_places_list_len = 0; | |
782 | gomp_error ("Invalid value for environment variable %s", name); | |
783 | return false; | |
784 | } | |
785 | ||
fd6481cf | 786 | /* Parse the OMP_STACKSIZE environment varible. Return true if one was |
787 | present and it was successfully parsed. */ | |
788 | ||
789 | static bool | |
790 | parse_stacksize (const char *name, unsigned long *pvalue) | |
791 | { | |
792 | char *env, *end; | |
793 | unsigned long value, shift = 10; | |
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 | errno = 0; | |
805 | value = strtoul (env, &end, 10); | |
806 | if (errno) | |
807 | goto invalid; | |
808 | ||
809 | while (isspace ((unsigned char) *end)) | |
810 | ++end; | |
811 | if (*end != '\0') | |
812 | { | |
787c2ac3 | 813 | switch (tolower ((unsigned char) *end)) |
fd6481cf | 814 | { |
815 | case 'b': | |
816 | shift = 0; | |
817 | break; | |
818 | case 'k': | |
819 | break; | |
820 | case 'm': | |
821 | shift = 20; | |
822 | break; | |
823 | case 'g': | |
824 | shift = 30; | |
825 | break; | |
826 | default: | |
827 | goto invalid; | |
828 | } | |
829 | ++end; | |
830 | while (isspace ((unsigned char) *end)) | |
831 | ++end; | |
832 | if (*end != '\0') | |
833 | goto invalid; | |
834 | } | |
835 | ||
836 | if (((value << shift) >> shift) != value) | |
837 | goto invalid; | |
838 | ||
839 | *pvalue = value << shift; | |
840 | return true; | |
841 | ||
842 | invalid: | |
843 | gomp_error ("Invalid value for environment variable %s", name); | |
844 | return false; | |
845 | } | |
846 | ||
847 | /* Parse the GOMP_SPINCOUNT environment varible. Return true if one was | |
848 | present and it was successfully parsed. */ | |
849 | ||
850 | static bool | |
851 | parse_spincount (const char *name, unsigned long long *pvalue) | |
852 | { | |
853 | char *env, *end; | |
854 | unsigned long long value, mult = 1; | |
855 | ||
856 | env = getenv (name); | |
857 | if (env == NULL) | |
858 | return false; | |
859 | ||
860 | while (isspace ((unsigned char) *env)) | |
861 | ++env; | |
862 | if (*env == '\0') | |
863 | goto invalid; | |
864 | ||
865 | if (strncasecmp (env, "infinite", 8) == 0 | |
866 | || strncasecmp (env, "infinity", 8) == 0) | |
867 | { | |
868 | value = ~0ULL; | |
869 | end = env + 8; | |
870 | goto check_tail; | |
871 | } | |
872 | ||
873 | errno = 0; | |
874 | value = strtoull (env, &end, 10); | |
875 | if (errno) | |
876 | goto invalid; | |
877 | ||
878 | while (isspace ((unsigned char) *end)) | |
879 | ++end; | |
880 | if (*end != '\0') | |
881 | { | |
787c2ac3 | 882 | switch (tolower ((unsigned char) *end)) |
fd6481cf | 883 | { |
884 | case 'k': | |
885 | mult = 1000LL; | |
886 | break; | |
887 | case 'm': | |
888 | mult = 1000LL * 1000LL; | |
889 | break; | |
890 | case 'g': | |
891 | mult = 1000LL * 1000LL * 1000LL; | |
892 | break; | |
893 | case 't': | |
894 | mult = 1000LL * 1000LL * 1000LL * 1000LL; | |
895 | break; | |
896 | default: | |
897 | goto invalid; | |
898 | } | |
899 | ++end; | |
900 | check_tail: | |
901 | while (isspace ((unsigned char) *end)) | |
902 | ++end; | |
903 | if (*end != '\0') | |
904 | goto invalid; | |
905 | } | |
906 | ||
907 | if (value > ~0ULL / mult) | |
908 | value = ~0ULL; | |
909 | else | |
910 | value *= mult; | |
911 | ||
912 | *pvalue = value; | |
913 | return true; | |
914 | ||
915 | invalid: | |
916 | gomp_error ("Invalid value for environment variable %s", name); | |
917 | return false; | |
918 | } | |
919 | ||
920 | /* Parse a boolean value for environment variable NAME and store the | |
1e8e9920 | 921 | result in VALUE. */ |
922 | ||
923 | static void | |
924 | parse_boolean (const char *name, bool *value) | |
925 | { | |
926 | const char *env; | |
927 | ||
928 | env = getenv (name); | |
929 | if (env == NULL) | |
930 | return; | |
931 | ||
8278bf29 | 932 | while (isspace ((unsigned char) *env)) |
933 | ++env; | |
934 | if (strncasecmp (env, "true", 4) == 0) | |
935 | { | |
936 | *value = true; | |
937 | env += 4; | |
938 | } | |
939 | else if (strncasecmp (env, "false", 5) == 0) | |
940 | { | |
941 | *value = false; | |
942 | env += 5; | |
943 | } | |
1e8e9920 | 944 | else |
8278bf29 | 945 | env = "X"; |
946 | while (isspace ((unsigned char) *env)) | |
947 | ++env; | |
948 | if (*env != '\0') | |
ba893327 | 949 | gomp_error ("Invalid value for environment variable %s", name); |
1e8e9920 | 950 | } |
951 | ||
fd6481cf | 952 | /* Parse the OMP_WAIT_POLICY environment variable and store the |
953 | result in gomp_active_wait_policy. */ | |
954 | ||
955 | static int | |
956 | parse_wait_policy (void) | |
957 | { | |
958 | const char *env; | |
959 | int ret = -1; | |
960 | ||
961 | env = getenv ("OMP_WAIT_POLICY"); | |
962 | if (env == NULL) | |
963 | return -1; | |
964 | ||
965 | while (isspace ((unsigned char) *env)) | |
966 | ++env; | |
967 | if (strncasecmp (env, "active", 6) == 0) | |
968 | { | |
969 | ret = 1; | |
970 | env += 6; | |
971 | } | |
972 | else if (strncasecmp (env, "passive", 7) == 0) | |
973 | { | |
974 | ret = 0; | |
975 | env += 7; | |
976 | } | |
977 | else | |
978 | env = "X"; | |
979 | while (isspace ((unsigned char) *env)) | |
980 | ++env; | |
981 | if (*env == '\0') | |
982 | return ret; | |
983 | gomp_error ("Invalid value for environment variable OMP_WAIT_POLICY"); | |
984 | return -1; | |
985 | } | |
986 | ||
8f697de6 | 987 | /* Parse the GOMP_CPU_AFFINITY environment varible. Return true if one was |
988 | present and it was successfully parsed. */ | |
989 | ||
990 | static bool | |
4892de53 | 991 | parse_affinity (bool ignore) |
8f697de6 | 992 | { |
bc7bff74 | 993 | char *env, *end, *start; |
994 | int pass; | |
8f697de6 | 995 | unsigned long cpu_beg, cpu_end, cpu_stride; |
bc7bff74 | 996 | size_t count = 0, needed; |
8f697de6 | 997 | |
998 | env = getenv ("GOMP_CPU_AFFINITY"); | |
999 | if (env == NULL) | |
1000 | return false; | |
1001 | ||
bc7bff74 | 1002 | start = env; |
1003 | for (pass = 0; pass < 2; pass++) | |
8f697de6 | 1004 | { |
bc7bff74 | 1005 | env = start; |
1006 | if (pass == 1) | |
8f697de6 | 1007 | { |
4892de53 | 1008 | if (ignore) |
1009 | return false; | |
1010 | ||
bc7bff74 | 1011 | gomp_places_list_len = 0; |
1012 | gomp_places_list = gomp_affinity_alloc (count, true); | |
1013 | if (gomp_places_list == NULL) | |
1014 | return false; | |
1015 | } | |
1016 | do | |
1017 | { | |
1018 | while (isspace ((unsigned char) *env)) | |
1019 | ++env; | |
1020 | ||
1021 | errno = 0; | |
1022 | cpu_beg = strtoul (env, &end, 0); | |
1023 | if (errno || cpu_beg >= 65536) | |
8f697de6 | 1024 | goto invalid; |
bc7bff74 | 1025 | cpu_end = cpu_beg; |
1026 | cpu_stride = 1; | |
8f697de6 | 1027 | |
1028 | env = end; | |
bc7bff74 | 1029 | if (*env == '-') |
8f697de6 | 1030 | { |
bc7bff74 | 1031 | errno = 0; |
1032 | cpu_end = strtoul (++env, &end, 0); | |
1033 | if (errno || cpu_end >= 65536 || cpu_end < cpu_beg) | |
8f697de6 | 1034 | goto invalid; |
1035 | ||
1036 | env = end; | |
bc7bff74 | 1037 | if (*env == ':') |
1038 | { | |
1039 | errno = 0; | |
1040 | cpu_stride = strtoul (++env, &end, 0); | |
1041 | if (errno || cpu_stride == 0 || cpu_stride >= 65536) | |
1042 | goto invalid; | |
8f697de6 | 1043 | |
bc7bff74 | 1044 | env = end; |
1045 | } | |
1046 | } | |
8f697de6 | 1047 | |
bc7bff74 | 1048 | needed = (cpu_end - cpu_beg) / cpu_stride + 1; |
1049 | if (pass == 0) | |
1050 | count += needed; | |
8f697de6 | 1051 | else |
8f697de6 | 1052 | { |
bc7bff74 | 1053 | while (needed--) |
1054 | { | |
1055 | void *p = gomp_places_list[gomp_places_list_len]; | |
1056 | gomp_affinity_init_place (p); | |
1057 | if (gomp_affinity_add_cpus (p, cpu_beg, 1, 0, true)) | |
1058 | ++gomp_places_list_len; | |
1059 | cpu_beg += cpu_stride; | |
1060 | } | |
8f697de6 | 1061 | } |
1062 | ||
bc7bff74 | 1063 | while (isspace ((unsigned char) *env)) |
1064 | ++env; | |
8f697de6 | 1065 | |
bc7bff74 | 1066 | if (*env == ',') |
1067 | env++; | |
1068 | else if (*env == '\0') | |
1069 | break; | |
8f697de6 | 1070 | } |
bc7bff74 | 1071 | while (1); |
8f697de6 | 1072 | } |
8f697de6 | 1073 | |
bc7bff74 | 1074 | if (gomp_places_list_len == 0) |
1075 | { | |
1076 | free (gomp_places_list); | |
1077 | gomp_places_list = NULL; | |
4892de53 | 1078 | return false; |
bc7bff74 | 1079 | } |
8f697de6 | 1080 | return true; |
1081 | ||
1082 | invalid: | |
1083 | gomp_error ("Invalid value for enviroment variable GOMP_CPU_AFFINITY"); | |
1084 | return false; | |
1085 | } | |
1086 | ||
ca4c3545 | 1087 | static void |
1088 | parse_acc_device_type (void) | |
1089 | { | |
1090 | const char *env = getenv ("ACC_DEVICE_TYPE"); | |
1091 | ||
1092 | if (env && *env != '\0') | |
1093 | goacc_device_type = strdup (env); | |
1094 | else | |
1095 | goacc_device_type = NULL; | |
1096 | } | |
bc7bff74 | 1097 | |
8655b2ce | 1098 | static void |
1099 | parse_gomp_openacc_dim (void) | |
1100 | { | |
1101 | /* The syntax is the same as for the -fopenacc-dim compilation option. */ | |
1102 | const char *var_name = "GOMP_OPENACC_DIM"; | |
1103 | const char *env_var = getenv (var_name); | |
1104 | if (!env_var) | |
1105 | return; | |
1106 | ||
1107 | const char *pos = env_var; | |
1108 | int i; | |
1109 | for (i = 0; *pos && i != GOMP_DIM_MAX; i++) | |
1110 | { | |
1111 | if (i && *pos++ != ':') | |
1112 | break; | |
1113 | ||
1114 | if (*pos == ':') | |
1115 | continue; | |
1116 | ||
1117 | const char *eptr; | |
1118 | errno = 0; | |
1119 | long val = strtol (pos, (char **)&eptr, 10); | |
1120 | if (errno || val < 0 || (unsigned)val != val) | |
1121 | break; | |
1122 | ||
1123 | goacc_default_dims[i] = (int)val; | |
1124 | pos = eptr; | |
1125 | } | |
1126 | } | |
1127 | ||
bc7bff74 | 1128 | static void |
1129 | handle_omp_display_env (unsigned long stacksize, int wait_policy) | |
1130 | { | |
1131 | const char *env; | |
1132 | bool display = false; | |
1133 | bool verbose = false; | |
1134 | int i; | |
1135 | ||
1136 | env = getenv ("OMP_DISPLAY_ENV"); | |
1137 | if (env == NULL) | |
1138 | return; | |
1139 | ||
1140 | while (isspace ((unsigned char) *env)) | |
1141 | ++env; | |
1142 | if (strncasecmp (env, "true", 4) == 0) | |
1143 | { | |
1144 | display = true; | |
1145 | env += 4; | |
1146 | } | |
1147 | else if (strncasecmp (env, "false", 5) == 0) | |
1148 | { | |
1149 | display = false; | |
1150 | env += 5; | |
1151 | } | |
1152 | else if (strncasecmp (env, "verbose", 7) == 0) | |
1153 | { | |
1154 | display = true; | |
1155 | verbose = true; | |
1156 | env += 7; | |
1157 | } | |
1158 | else | |
1159 | env = "X"; | |
1160 | while (isspace ((unsigned char) *env)) | |
1161 | ++env; | |
1162 | if (*env != '\0') | |
1163 | gomp_error ("Invalid value for environment variable OMP_DISPLAY_ENV"); | |
1164 | ||
1165 | if (!display) | |
1166 | return; | |
1167 | ||
1168 | fputs ("\nOPENMP DISPLAY ENVIRONMENT BEGIN\n", stderr); | |
1169 | ||
43895be5 | 1170 | fputs (" _OPENMP = '201511'\n", stderr); |
bc7bff74 | 1171 | fprintf (stderr, " OMP_DYNAMIC = '%s'\n", |
1172 | gomp_global_icv.dyn_var ? "TRUE" : "FALSE"); | |
1173 | fprintf (stderr, " OMP_NESTED = '%s'\n", | |
1174 | gomp_global_icv.nest_var ? "TRUE" : "FALSE"); | |
1175 | ||
1176 | fprintf (stderr, " OMP_NUM_THREADS = '%lu", gomp_global_icv.nthreads_var); | |
1177 | for (i = 1; i < gomp_nthreads_var_list_len; i++) | |
1178 | fprintf (stderr, ",%lu", gomp_nthreads_var_list[i]); | |
1179 | fputs ("'\n", stderr); | |
1180 | ||
1181 | fprintf (stderr, " OMP_SCHEDULE = '"); | |
7e5a76c8 | 1182 | if ((gomp_global_icv.run_sched_var & GFS_MONOTONIC)) |
1183 | { | |
1184 | if (gomp_global_icv.run_sched_var != (GFS_MONOTONIC | GFS_STATIC)) | |
1185 | fputs ("MONOTONIC:", stderr); | |
1186 | } | |
1187 | else if (gomp_global_icv.run_sched_var == GFS_STATIC) | |
1188 | fputs ("NONMONOTONIC:", stderr); | |
1189 | switch (gomp_global_icv.run_sched_var & ~GFS_MONOTONIC) | |
bc7bff74 | 1190 | { |
1191 | case GFS_RUNTIME: | |
1192 | fputs ("RUNTIME", stderr); | |
7e5a76c8 | 1193 | if (gomp_global_icv.run_sched_chunk_size != 1) |
1194 | fprintf (stderr, ",%d", gomp_global_icv.run_sched_chunk_size); | |
bc7bff74 | 1195 | break; |
1196 | case GFS_STATIC: | |
1197 | fputs ("STATIC", stderr); | |
7e5a76c8 | 1198 | if (gomp_global_icv.run_sched_chunk_size != 0) |
1199 | fprintf (stderr, ",%d", gomp_global_icv.run_sched_chunk_size); | |
bc7bff74 | 1200 | break; |
1201 | case GFS_DYNAMIC: | |
1202 | fputs ("DYNAMIC", stderr); | |
7e5a76c8 | 1203 | if (gomp_global_icv.run_sched_chunk_size != 1) |
1204 | fprintf (stderr, ",%d", gomp_global_icv.run_sched_chunk_size); | |
bc7bff74 | 1205 | break; |
1206 | case GFS_GUIDED: | |
1207 | fputs ("GUIDED", stderr); | |
7e5a76c8 | 1208 | if (gomp_global_icv.run_sched_chunk_size != 1) |
1209 | fprintf (stderr, ",%d", gomp_global_icv.run_sched_chunk_size); | |
bc7bff74 | 1210 | break; |
1211 | case GFS_AUTO: | |
1212 | fputs ("AUTO", stderr); | |
1213 | break; | |
1214 | } | |
1215 | fputs ("'\n", stderr); | |
1216 | ||
1217 | fputs (" OMP_PROC_BIND = '", stderr); | |
1218 | switch (gomp_global_icv.bind_var) | |
1219 | { | |
1220 | case omp_proc_bind_false: | |
1221 | fputs ("FALSE", stderr); | |
1222 | break; | |
1223 | case omp_proc_bind_true: | |
1224 | fputs ("TRUE", stderr); | |
1225 | break; | |
1226 | case omp_proc_bind_master: | |
1227 | fputs ("MASTER", stderr); | |
1228 | break; | |
1229 | case omp_proc_bind_close: | |
1230 | fputs ("CLOSE", stderr); | |
1231 | break; | |
1232 | case omp_proc_bind_spread: | |
1233 | fputs ("SPREAD", stderr); | |
1234 | break; | |
1235 | } | |
1236 | for (i = 1; i < gomp_bind_var_list_len; i++) | |
1237 | switch (gomp_bind_var_list[i]) | |
1238 | { | |
1239 | case omp_proc_bind_master: | |
1240 | fputs (",MASTER", stderr); | |
1241 | break; | |
1242 | case omp_proc_bind_close: | |
1243 | fputs (",CLOSE", stderr); | |
1244 | break; | |
1245 | case omp_proc_bind_spread: | |
1246 | fputs (",SPREAD", stderr); | |
1247 | break; | |
1248 | } | |
1249 | fputs ("'\n", stderr); | |
1250 | fputs (" OMP_PLACES = '", stderr); | |
1251 | for (i = 0; i < gomp_places_list_len; i++) | |
1252 | { | |
1253 | fputs ("{", stderr); | |
1254 | gomp_affinity_print_place (gomp_places_list[i]); | |
1255 | fputs (i + 1 == gomp_places_list_len ? "}" : "},", stderr); | |
1256 | } | |
1257 | fputs ("'\n", stderr); | |
1258 | ||
1259 | fprintf (stderr, " OMP_STACKSIZE = '%lu'\n", stacksize); | |
1260 | ||
1261 | /* GOMP's default value is actually neither active nor passive. */ | |
1262 | fprintf (stderr, " OMP_WAIT_POLICY = '%s'\n", | |
1263 | wait_policy > 0 ? "ACTIVE" : "PASSIVE"); | |
1264 | fprintf (stderr, " OMP_THREAD_LIMIT = '%u'\n", | |
1265 | gomp_global_icv.thread_limit_var); | |
1266 | fprintf (stderr, " OMP_MAX_ACTIVE_LEVELS = '%lu'\n", | |
1267 | gomp_max_active_levels_var); | |
1268 | ||
1269 | fprintf (stderr, " OMP_CANCELLATION = '%s'\n", | |
1270 | gomp_cancel_var ? "TRUE" : "FALSE"); | |
1271 | fprintf (stderr, " OMP_DEFAULT_DEVICE = '%d'\n", | |
1272 | gomp_global_icv.default_device_var); | |
43895be5 | 1273 | fprintf (stderr, " OMP_MAX_TASK_PRIORITY = '%d'\n", |
1274 | gomp_max_task_priority_var); | |
7e5a76c8 | 1275 | fprintf (stderr, " OMP_DISPLAY_AFFINITY = '%s'\n", |
1276 | gomp_display_affinity_var ? "TRUE" : "FALSE"); | |
1277 | fprintf (stderr, " OMP_AFFINITY_FORMAT = '%s'\n", | |
1278 | gomp_affinity_format_var); | |
bc7bff74 | 1279 | |
1280 | if (verbose) | |
1281 | { | |
1282 | fputs (" GOMP_CPU_AFFINITY = ''\n", stderr); | |
1283 | fprintf (stderr, " GOMP_STACKSIZE = '%lu'\n", stacksize); | |
1284 | #ifdef HAVE_INTTYPES_H | |
1285 | fprintf (stderr, " GOMP_SPINCOUNT = '%"PRIu64"'\n", | |
1286 | (uint64_t) gomp_spin_count_var); | |
1287 | #else | |
1288 | fprintf (stderr, " GOMP_SPINCOUNT = '%lu'\n", | |
1289 | (unsigned long) gomp_spin_count_var); | |
1290 | #endif | |
1291 | } | |
1292 | ||
1293 | fputs ("OPENMP DISPLAY ENVIRONMENT END\n", stderr); | |
1294 | } | |
1295 | ||
1296 | ||
1e8e9920 | 1297 | static void __attribute__((constructor)) |
1298 | initialize_env (void) | |
1299 | { | |
cd34a2a4 | 1300 | unsigned long thread_limit_var, stacksize = GOMP_DEFAULT_STACKSIZE; |
fd6481cf | 1301 | int wait_policy; |
ba893327 | 1302 | |
1e8e9920 | 1303 | /* Do a compile time check that mkomp_h.pl did good job. */ |
1304 | omp_check_defines (); | |
1305 | ||
1306 | parse_schedule (); | |
fd6481cf | 1307 | parse_boolean ("OMP_DYNAMIC", &gomp_global_icv.dyn_var); |
1308 | parse_boolean ("OMP_NESTED", &gomp_global_icv.nest_var); | |
bc7bff74 | 1309 | parse_boolean ("OMP_CANCELLATION", &gomp_cancel_var); |
7e5a76c8 | 1310 | parse_boolean ("OMP_DISPLAY_AFFINITY", &gomp_display_affinity_var); |
bc7bff74 | 1311 | parse_int ("OMP_DEFAULT_DEVICE", &gomp_global_icv.default_device_var, true); |
43895be5 | 1312 | parse_int ("OMP_MAX_TASK_PRIORITY", &gomp_max_task_priority_var, true); |
0bdba776 | 1313 | parse_unsigned_long ("OMP_MAX_ACTIVE_LEVELS", &gomp_max_active_levels_var, |
1314 | true); | |
bc7bff74 | 1315 | if (parse_unsigned_long ("OMP_THREAD_LIMIT", &thread_limit_var, false)) |
1316 | { | |
1317 | gomp_global_icv.thread_limit_var | |
1318 | = thread_limit_var > INT_MAX ? UINT_MAX : thread_limit_var; | |
1319 | } | |
e9f3b6c9 | 1320 | parse_int_secure ("GOMP_DEBUG", &gomp_debug_var, true); |
fd6481cf | 1321 | #ifndef HAVE_SYNC_BUILTINS |
bc7bff74 | 1322 | gomp_mutex_init (&gomp_managed_threads_lock); |
fd6481cf | 1323 | #endif |
fd6481cf | 1324 | gomp_init_num_threads (); |
1325 | gomp_available_cpus = gomp_global_icv.nthreads_var; | |
2169f33b | 1326 | if (!parse_unsigned_long_list ("OMP_NUM_THREADS", |
1327 | &gomp_global_icv.nthreads_var, | |
1328 | &gomp_nthreads_var_list, | |
1329 | &gomp_nthreads_var_list_len)) | |
fd6481cf | 1330 | gomp_global_icv.nthreads_var = gomp_available_cpus; |
4892de53 | 1331 | bool ignore = false; |
1332 | if (parse_bind_var ("OMP_PROC_BIND", | |
1333 | &gomp_global_icv.bind_var, | |
1334 | &gomp_bind_var_list, | |
1335 | &gomp_bind_var_list_len) | |
1336 | && gomp_global_icv.bind_var == omp_proc_bind_false) | |
1337 | ignore = true; | |
1338 | /* Make sure OMP_PLACES and GOMP_CPU_AFFINITY env vars are always | |
1339 | parsed if present in the environment. If OMP_PROC_BIND was set | |
1340 | explictly to false, don't populate places list though. If places | |
1341 | list was successfully set from OMP_PLACES, only parse but don't process | |
1342 | GOMP_CPU_AFFINITY. If OMP_PROC_BIND was not set in the environment, | |
1343 | default to OMP_PROC_BIND=true if OMP_PLACES or GOMP_CPU_AFFINITY | |
1344 | was successfully parsed into a places list, otherwise to | |
1345 | OMP_PROC_BIND=false. */ | |
1346 | if (parse_places_var ("OMP_PLACES", ignore)) | |
1347 | { | |
1348 | if (gomp_global_icv.bind_var == omp_proc_bind_false) | |
1349 | gomp_global_icv.bind_var = true; | |
1350 | ignore = true; | |
1351 | } | |
1352 | if (parse_affinity (ignore)) | |
1353 | { | |
1354 | if (gomp_global_icv.bind_var == omp_proc_bind_false) | |
1355 | gomp_global_icv.bind_var = true; | |
1356 | ignore = true; | |
1357 | } | |
1358 | if (gomp_global_icv.bind_var != omp_proc_bind_false) | |
8f697de6 | 1359 | gomp_init_affinity (); |
7e5a76c8 | 1360 | |
1361 | { | |
1362 | const char *env = getenv ("OMP_AFFINITY_FORMAT"); | |
1363 | if (env != NULL) | |
1364 | gomp_set_affinity_format (env, strlen (env)); | |
1365 | } | |
1366 | ||
fd6481cf | 1367 | wait_policy = parse_wait_policy (); |
1368 | if (!parse_spincount ("GOMP_SPINCOUNT", &gomp_spin_count_var)) | |
1369 | { | |
1370 | /* Using a rough estimation of 100000 spins per msec, | |
1371 | use 5 min blocking for OMP_WAIT_POLICY=active, | |
0b810b10 | 1372 | 3 msec blocking when OMP_WAIT_POLICY is not specificed |
fd6481cf | 1373 | and 0 when OMP_WAIT_POLICY=passive. |
1374 | Depending on the CPU speed, this can be e.g. 5 times longer | |
1375 | or 5 times shorter. */ | |
1376 | if (wait_policy > 0) | |
1377 | gomp_spin_count_var = 30000000000LL; | |
1378 | else if (wait_policy < 0) | |
0b810b10 | 1379 | gomp_spin_count_var = 300000LL; |
fd6481cf | 1380 | } |
1381 | /* gomp_throttled_spin_count_var is used when there are more libgomp | |
1382 | managed threads than available CPUs. Use very short spinning. */ | |
1383 | if (wait_policy > 0) | |
1384 | gomp_throttled_spin_count_var = 1000LL; | |
1385 | else if (wait_policy < 0) | |
1386 | gomp_throttled_spin_count_var = 100LL; | |
1387 | if (gomp_throttled_spin_count_var > gomp_spin_count_var) | |
1388 | gomp_throttled_spin_count_var = gomp_spin_count_var; | |
ba893327 | 1389 | |
1390 | /* Not strictly environment related, but ordering constructors is tricky. */ | |
1391 | pthread_attr_init (&gomp_thread_attr); | |
ba893327 | 1392 | |
fd6481cf | 1393 | if (parse_stacksize ("OMP_STACKSIZE", &stacksize) |
cd34a2a4 | 1394 | || parse_stacksize ("GOMP_STACKSIZE", &stacksize) |
1395 | || GOMP_DEFAULT_STACKSIZE) | |
ba893327 | 1396 | { |
2ea0eaec | 1397 | int err; |
1398 | ||
2ea0eaec | 1399 | err = pthread_attr_setstacksize (&gomp_thread_attr, stacksize); |
1400 | ||
1401 | #ifdef PTHREAD_STACK_MIN | |
1402 | if (err == EINVAL) | |
ba893327 | 1403 | { |
2ea0eaec | 1404 | if (stacksize < PTHREAD_STACK_MIN) |
1405 | gomp_error ("Stack size less than minimum of %luk", | |
1406 | PTHREAD_STACK_MIN / 1024ul | |
1407 | + (PTHREAD_STACK_MIN % 1024 != 0)); | |
1408 | else | |
ba893327 | 1409 | gomp_error ("Stack size larger than system limit"); |
ba893327 | 1410 | } |
2ea0eaec | 1411 | else |
1412 | #endif | |
1413 | if (err != 0) | |
1414 | gomp_error ("Stack size change failed: %s", strerror (err)); | |
ba893327 | 1415 | } |
bc7bff74 | 1416 | |
1417 | handle_omp_display_env (stacksize, wait_policy); | |
ca4c3545 | 1418 | |
1419 | /* OpenACC. */ | |
1420 | ||
1421 | if (!parse_int ("ACC_DEVICE_NUM", &goacc_device_num, true)) | |
1422 | goacc_device_num = 0; | |
1423 | ||
1424 | parse_acc_device_type (); | |
8655b2ce | 1425 | parse_gomp_openacc_dim (); |
ca4c3545 | 1426 | |
1427 | goacc_runtime_initialize (); | |
1e8e9920 | 1428 | } |
26cc6808 | 1429 | #endif /* LIBGOMP_OFFLOADED_ONLY */ |