Mercurial > hg > CbC > CbC_gcc
annotate libgomp/env.c @ 108:7ad14f446135
add CbC-example/rectypeTest/
| author | Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> |
|---|---|
| date | Thu, 14 Jun 2012 20:30:24 +0900 |
| parents | f6334be47118 |
| children | 04ced10e8804 |
| rev | line source |
|---|---|
|
63
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1 /* Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010 |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2 Free Software Foundation, Inc. |
| 0 | 3 Contributed by Richard Henderson <rth@redhat.com>. |
| 4 | |
| 5 This file is part of the GNU OpenMP Library (libgomp). | |
| 6 | |
| 7 Libgomp is free software; you can redistribute it and/or modify it | |
| 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. | |
| 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 | |
| 14 FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
| 15 more details. | |
| 16 | |
| 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. | |
| 20 | |
| 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/>. */ | |
| 25 | |
| 26 /* This file defines the OpenMP internal control variables, and arranges | |
| 27 for them to be initialized from environment variables at startup. */ | |
| 28 | |
| 29 #include "libgomp.h" | |
| 30 #include "libgomp_f.h" | |
| 31 #include <ctype.h> | |
| 32 #include <stdlib.h> | |
| 33 #ifdef STRING_WITH_STRINGS | |
| 34 # include <string.h> | |
| 35 # include <strings.h> | |
| 36 #else | |
| 37 # ifdef HAVE_STRING_H | |
| 38 # include <string.h> | |
| 39 # else | |
| 40 # ifdef HAVE_STRINGS_H | |
| 41 # include <strings.h> | |
| 42 # endif | |
| 43 # endif | |
| 44 #endif | |
| 45 #include <limits.h> | |
| 46 #include <errno.h> | |
| 47 | |
| 48 #ifndef HAVE_STRTOULL | |
| 49 # define strtoull(ptr, eptr, base) strtoul (ptr, eptr, base) | |
| 50 #endif | |
| 51 | |
| 52 struct gomp_task_icv gomp_global_icv = { | |
| 53 .nthreads_var = 1, | |
| 54 .run_sched_var = GFS_DYNAMIC, | |
| 55 .run_sched_modifier = 1, | |
| 56 .dyn_var = false, | |
| 57 .nest_var = false | |
| 58 }; | |
| 59 | |
| 60 unsigned short *gomp_cpu_affinity; | |
| 61 size_t gomp_cpu_affinity_len; | |
| 62 unsigned long gomp_max_active_levels_var = INT_MAX; | |
| 63 unsigned long gomp_thread_limit_var = ULONG_MAX; | |
| 64 unsigned long gomp_remaining_threads_count; | |
| 65 #ifndef HAVE_SYNC_BUILTINS | |
| 66 gomp_mutex_t gomp_remaining_threads_lock; | |
| 67 #endif | |
| 68 unsigned long gomp_available_cpus = 1, gomp_managed_threads = 1; | |
| 69 unsigned long long gomp_spin_count_var, gomp_throttled_spin_count_var; | |
| 70 | |
| 71 /* Parse the OMP_SCHEDULE environment variable. */ | |
| 72 | |
| 73 static void | |
| 74 parse_schedule (void) | |
| 75 { | |
| 76 char *env, *end; | |
| 77 unsigned long value; | |
| 78 | |
| 79 env = getenv ("OMP_SCHEDULE"); | |
| 80 if (env == NULL) | |
| 81 return; | |
| 82 | |
| 83 while (isspace ((unsigned char) *env)) | |
| 84 ++env; | |
| 85 if (strncasecmp (env, "static", 6) == 0) | |
| 86 { | |
| 87 gomp_global_icv.run_sched_var = GFS_STATIC; | |
| 88 env += 6; | |
| 89 } | |
| 90 else if (strncasecmp (env, "dynamic", 7) == 0) | |
| 91 { | |
| 92 gomp_global_icv.run_sched_var = GFS_DYNAMIC; | |
| 93 env += 7; | |
| 94 } | |
| 95 else if (strncasecmp (env, "guided", 6) == 0) | |
| 96 { | |
| 97 gomp_global_icv.run_sched_var = GFS_GUIDED; | |
| 98 env += 6; | |
| 99 } | |
| 100 else if (strncasecmp (env, "auto", 4) == 0) | |
| 101 { | |
| 102 gomp_global_icv.run_sched_var = GFS_AUTO; | |
| 103 env += 4; | |
| 104 } | |
| 105 else | |
| 106 goto unknown; | |
| 107 | |
| 108 while (isspace ((unsigned char) *env)) | |
| 109 ++env; | |
| 110 if (*env == '\0') | |
| 111 return; | |
| 112 if (*env++ != ',') | |
| 113 goto unknown; | |
| 114 while (isspace ((unsigned char) *env)) | |
| 115 ++env; | |
| 116 if (*env == '\0') | |
| 117 goto invalid; | |
| 118 | |
| 119 errno = 0; | |
| 120 value = strtoul (env, &end, 10); | |
| 121 if (errno) | |
| 122 goto invalid; | |
| 123 | |
| 124 while (isspace ((unsigned char) *end)) | |
| 125 ++end; | |
| 126 if (*end != '\0') | |
| 127 goto invalid; | |
| 128 | |
| 129 if ((int)value != value) | |
| 130 goto invalid; | |
| 131 | |
| 132 gomp_global_icv.run_sched_modifier = value; | |
| 133 return; | |
| 134 | |
| 135 unknown: | |
| 136 gomp_error ("Unknown value for environment variable OMP_SCHEDULE"); | |
| 137 return; | |
| 138 | |
| 139 invalid: | |
| 140 gomp_error ("Invalid value for chunk size in " | |
| 141 "environment variable OMP_SCHEDULE"); | |
| 142 return; | |
| 143 } | |
| 144 | |
| 145 /* Parse an unsigned long environment variable. Return true if one was | |
| 146 present and it was successfully parsed. */ | |
| 147 | |
| 148 static bool | |
|
63
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
149 parse_unsigned_long (const char *name, unsigned long *pvalue, bool allow_zero) |
| 0 | 150 { |
| 151 char *env, *end; | |
| 152 unsigned long value; | |
| 153 | |
| 154 env = getenv (name); | |
| 155 if (env == NULL) | |
| 156 return false; | |
| 157 | |
| 158 while (isspace ((unsigned char) *env)) | |
| 159 ++env; | |
| 160 if (*env == '\0') | |
| 161 goto invalid; | |
| 162 | |
| 163 errno = 0; | |
| 164 value = strtoul (env, &end, 10); | |
|
63
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
165 if (errno || (long) value <= 0 - allow_zero) |
| 0 | 166 goto invalid; |
| 167 | |
| 168 while (isspace ((unsigned char) *end)) | |
| 169 ++end; | |
| 170 if (*end != '\0') | |
| 171 goto invalid; | |
| 172 | |
| 173 *pvalue = value; | |
| 174 return true; | |
| 175 | |
| 176 invalid: | |
| 177 gomp_error ("Invalid value for environment variable %s", name); | |
| 178 return false; | |
| 179 } | |
| 180 | |
| 181 /* Parse the OMP_STACKSIZE environment varible. Return true if one was | |
| 182 present and it was successfully parsed. */ | |
| 183 | |
| 184 static bool | |
| 185 parse_stacksize (const char *name, unsigned long *pvalue) | |
| 186 { | |
| 187 char *env, *end; | |
| 188 unsigned long value, shift = 10; | |
| 189 | |
| 190 env = getenv (name); | |
| 191 if (env == NULL) | |
| 192 return false; | |
| 193 | |
| 194 while (isspace ((unsigned char) *env)) | |
| 195 ++env; | |
| 196 if (*env == '\0') | |
| 197 goto invalid; | |
| 198 | |
| 199 errno = 0; | |
| 200 value = strtoul (env, &end, 10); | |
| 201 if (errno) | |
| 202 goto invalid; | |
| 203 | |
| 204 while (isspace ((unsigned char) *end)) | |
| 205 ++end; | |
| 206 if (*end != '\0') | |
| 207 { | |
| 208 switch (tolower ((unsigned char) *end)) | |
| 209 { | |
| 210 case 'b': | |
| 211 shift = 0; | |
| 212 break; | |
| 213 case 'k': | |
| 214 break; | |
| 215 case 'm': | |
| 216 shift = 20; | |
| 217 break; | |
| 218 case 'g': | |
| 219 shift = 30; | |
| 220 break; | |
| 221 default: | |
| 222 goto invalid; | |
| 223 } | |
| 224 ++end; | |
| 225 while (isspace ((unsigned char) *end)) | |
| 226 ++end; | |
| 227 if (*end != '\0') | |
| 228 goto invalid; | |
| 229 } | |
| 230 | |
| 231 if (((value << shift) >> shift) != value) | |
| 232 goto invalid; | |
| 233 | |
| 234 *pvalue = value << shift; | |
| 235 return true; | |
| 236 | |
| 237 invalid: | |
| 238 gomp_error ("Invalid value for environment variable %s", name); | |
| 239 return false; | |
| 240 } | |
| 241 | |
| 242 /* Parse the GOMP_SPINCOUNT environment varible. Return true if one was | |
| 243 present and it was successfully parsed. */ | |
| 244 | |
| 245 static bool | |
| 246 parse_spincount (const char *name, unsigned long long *pvalue) | |
| 247 { | |
| 248 char *env, *end; | |
| 249 unsigned long long value, mult = 1; | |
| 250 | |
| 251 env = getenv (name); | |
| 252 if (env == NULL) | |
| 253 return false; | |
| 254 | |
| 255 while (isspace ((unsigned char) *env)) | |
| 256 ++env; | |
| 257 if (*env == '\0') | |
| 258 goto invalid; | |
| 259 | |
| 260 if (strncasecmp (env, "infinite", 8) == 0 | |
| 261 || strncasecmp (env, "infinity", 8) == 0) | |
| 262 { | |
| 263 value = ~0ULL; | |
| 264 end = env + 8; | |
| 265 goto check_tail; | |
| 266 } | |
| 267 | |
| 268 errno = 0; | |
| 269 value = strtoull (env, &end, 10); | |
| 270 if (errno) | |
| 271 goto invalid; | |
| 272 | |
| 273 while (isspace ((unsigned char) *end)) | |
| 274 ++end; | |
| 275 if (*end != '\0') | |
| 276 { | |
| 277 switch (tolower ((unsigned char) *end)) | |
| 278 { | |
| 279 case 'k': | |
| 280 mult = 1000LL; | |
| 281 break; | |
| 282 case 'm': | |
| 283 mult = 1000LL * 1000LL; | |
| 284 break; | |
| 285 case 'g': | |
| 286 mult = 1000LL * 1000LL * 1000LL; | |
| 287 break; | |
| 288 case 't': | |
| 289 mult = 1000LL * 1000LL * 1000LL * 1000LL; | |
| 290 break; | |
| 291 default: | |
| 292 goto invalid; | |
| 293 } | |
| 294 ++end; | |
| 295 check_tail: | |
| 296 while (isspace ((unsigned char) *end)) | |
| 297 ++end; | |
| 298 if (*end != '\0') | |
| 299 goto invalid; | |
| 300 } | |
| 301 | |
| 302 if (value > ~0ULL / mult) | |
| 303 value = ~0ULL; | |
| 304 else | |
| 305 value *= mult; | |
| 306 | |
| 307 *pvalue = value; | |
| 308 return true; | |
| 309 | |
| 310 invalid: | |
| 311 gomp_error ("Invalid value for environment variable %s", name); | |
| 312 return false; | |
| 313 } | |
| 314 | |
| 315 /* Parse a boolean value for environment variable NAME and store the | |
| 316 result in VALUE. */ | |
| 317 | |
| 318 static void | |
| 319 parse_boolean (const char *name, bool *value) | |
| 320 { | |
| 321 const char *env; | |
| 322 | |
| 323 env = getenv (name); | |
| 324 if (env == NULL) | |
| 325 return; | |
| 326 | |
| 327 while (isspace ((unsigned char) *env)) | |
| 328 ++env; | |
| 329 if (strncasecmp (env, "true", 4) == 0) | |
| 330 { | |
| 331 *value = true; | |
| 332 env += 4; | |
| 333 } | |
| 334 else if (strncasecmp (env, "false", 5) == 0) | |
| 335 { | |
| 336 *value = false; | |
| 337 env += 5; | |
| 338 } | |
| 339 else | |
| 340 env = "X"; | |
| 341 while (isspace ((unsigned char) *env)) | |
| 342 ++env; | |
| 343 if (*env != '\0') | |
| 344 gomp_error ("Invalid value for environment variable %s", name); | |
| 345 } | |
| 346 | |
| 347 /* Parse the OMP_WAIT_POLICY environment variable and store the | |
| 348 result in gomp_active_wait_policy. */ | |
| 349 | |
| 350 static int | |
| 351 parse_wait_policy (void) | |
| 352 { | |
| 353 const char *env; | |
| 354 int ret = -1; | |
| 355 | |
| 356 env = getenv ("OMP_WAIT_POLICY"); | |
| 357 if (env == NULL) | |
| 358 return -1; | |
| 359 | |
| 360 while (isspace ((unsigned char) *env)) | |
| 361 ++env; | |
| 362 if (strncasecmp (env, "active", 6) == 0) | |
| 363 { | |
| 364 ret = 1; | |
| 365 env += 6; | |
| 366 } | |
| 367 else if (strncasecmp (env, "passive", 7) == 0) | |
| 368 { | |
| 369 ret = 0; | |
| 370 env += 7; | |
| 371 } | |
| 372 else | |
| 373 env = "X"; | |
| 374 while (isspace ((unsigned char) *env)) | |
| 375 ++env; | |
| 376 if (*env == '\0') | |
| 377 return ret; | |
| 378 gomp_error ("Invalid value for environment variable OMP_WAIT_POLICY"); | |
| 379 return -1; | |
| 380 } | |
| 381 | |
| 382 /* Parse the GOMP_CPU_AFFINITY environment varible. Return true if one was | |
| 383 present and it was successfully parsed. */ | |
| 384 | |
| 385 static bool | |
| 386 parse_affinity (void) | |
| 387 { | |
| 388 char *env, *end; | |
| 389 unsigned long cpu_beg, cpu_end, cpu_stride; | |
| 390 unsigned short *cpus = NULL; | |
| 391 size_t allocated = 0, used = 0, needed; | |
| 392 | |
| 393 env = getenv ("GOMP_CPU_AFFINITY"); | |
| 394 if (env == NULL) | |
| 395 return false; | |
| 396 | |
| 397 do | |
| 398 { | |
| 399 while (*env == ' ' || *env == '\t') | |
| 400 env++; | |
| 401 | |
| 402 cpu_beg = strtoul (env, &end, 0); | |
| 403 cpu_end = cpu_beg; | |
| 404 cpu_stride = 1; | |
| 405 if (env == end || cpu_beg >= 65536) | |
| 406 goto invalid; | |
| 407 | |
| 408 env = end; | |
| 409 if (*env == '-') | |
| 410 { | |
| 411 cpu_end = strtoul (++env, &end, 0); | |
| 412 if (env == end || cpu_end >= 65536 || cpu_end < cpu_beg) | |
| 413 goto invalid; | |
| 414 | |
| 415 env = end; | |
| 416 if (*env == ':') | |
| 417 { | |
| 418 cpu_stride = strtoul (++env, &end, 0); | |
| 419 if (env == end || cpu_stride == 0 || cpu_stride >= 65536) | |
| 420 goto invalid; | |
| 421 | |
| 422 env = end; | |
| 423 } | |
| 424 } | |
| 425 | |
| 426 needed = (cpu_end - cpu_beg) / cpu_stride + 1; | |
| 427 if (used + needed >= allocated) | |
| 428 { | |
| 429 unsigned short *new_cpus; | |
| 430 | |
| 431 if (allocated < 64) | |
| 432 allocated = 64; | |
| 433 if (allocated > needed) | |
| 434 allocated <<= 1; | |
| 435 else | |
| 436 allocated += 2 * needed; | |
| 437 new_cpus = realloc (cpus, allocated * sizeof (unsigned short)); | |
| 438 if (new_cpus == NULL) | |
| 439 { | |
| 440 free (cpus); | |
| 441 gomp_error ("not enough memory to store GOMP_CPU_AFFINITY list"); | |
| 442 return false; | |
| 443 } | |
| 444 | |
| 445 cpus = new_cpus; | |
| 446 } | |
| 447 | |
| 448 while (needed--) | |
| 449 { | |
| 450 cpus[used++] = cpu_beg; | |
| 451 cpu_beg += cpu_stride; | |
| 452 } | |
| 453 | |
| 454 while (*env == ' ' || *env == '\t') | |
| 455 env++; | |
| 456 | |
| 457 if (*env == ',') | |
| 458 env++; | |
| 459 else if (*env == '\0') | |
| 460 break; | |
| 461 } | |
| 462 while (1); | |
| 463 | |
| 464 gomp_cpu_affinity = cpus; | |
| 465 gomp_cpu_affinity_len = used; | |
| 466 return true; | |
| 467 | |
| 468 invalid: | |
| 469 gomp_error ("Invalid value for enviroment variable GOMP_CPU_AFFINITY"); | |
| 470 return false; | |
| 471 } | |
| 472 | |
| 473 static void __attribute__((constructor)) | |
| 474 initialize_env (void) | |
| 475 { | |
| 476 unsigned long stacksize; | |
| 477 int wait_policy; | |
| 478 | |
| 479 /* Do a compile time check that mkomp_h.pl did good job. */ | |
| 480 omp_check_defines (); | |
| 481 | |
| 482 parse_schedule (); | |
| 483 parse_boolean ("OMP_DYNAMIC", &gomp_global_icv.dyn_var); | |
| 484 parse_boolean ("OMP_NESTED", &gomp_global_icv.nest_var); | |
|
63
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
485 parse_unsigned_long ("OMP_MAX_ACTIVE_LEVELS", &gomp_max_active_levels_var, |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
486 true); |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
487 parse_unsigned_long ("OMP_THREAD_LIMIT", &gomp_thread_limit_var, false); |
| 0 | 488 if (gomp_thread_limit_var != ULONG_MAX) |
| 489 gomp_remaining_threads_count = gomp_thread_limit_var - 1; | |
| 490 #ifndef HAVE_SYNC_BUILTINS | |
| 491 gomp_mutex_init (&gomp_remaining_threads_lock); | |
| 492 #endif | |
| 493 gomp_init_num_threads (); | |
| 494 gomp_available_cpus = gomp_global_icv.nthreads_var; | |
|
63
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
495 if (!parse_unsigned_long ("OMP_NUM_THREADS", &gomp_global_icv.nthreads_var, |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
496 false)) |
| 0 | 497 gomp_global_icv.nthreads_var = gomp_available_cpus; |
| 498 if (parse_affinity ()) | |
| 499 gomp_init_affinity (); | |
| 500 wait_policy = parse_wait_policy (); | |
| 501 if (!parse_spincount ("GOMP_SPINCOUNT", &gomp_spin_count_var)) | |
| 502 { | |
| 503 /* Using a rough estimation of 100000 spins per msec, | |
| 504 use 5 min blocking for OMP_WAIT_POLICY=active, | |
|
67
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
505 3 msec blocking when OMP_WAIT_POLICY is not specificed |
| 0 | 506 and 0 when OMP_WAIT_POLICY=passive. |
| 507 Depending on the CPU speed, this can be e.g. 5 times longer | |
| 508 or 5 times shorter. */ | |
| 509 if (wait_policy > 0) | |
| 510 gomp_spin_count_var = 30000000000LL; | |
| 511 else if (wait_policy < 0) | |
|
67
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
512 gomp_spin_count_var = 300000LL; |
| 0 | 513 } |
| 514 /* gomp_throttled_spin_count_var is used when there are more libgomp | |
| 515 managed threads than available CPUs. Use very short spinning. */ | |
| 516 if (wait_policy > 0) | |
| 517 gomp_throttled_spin_count_var = 1000LL; | |
| 518 else if (wait_policy < 0) | |
| 519 gomp_throttled_spin_count_var = 100LL; | |
| 520 if (gomp_throttled_spin_count_var > gomp_spin_count_var) | |
| 521 gomp_throttled_spin_count_var = gomp_spin_count_var; | |
| 522 | |
| 523 /* Not strictly environment related, but ordering constructors is tricky. */ | |
| 524 pthread_attr_init (&gomp_thread_attr); | |
| 525 pthread_attr_setdetachstate (&gomp_thread_attr, PTHREAD_CREATE_DETACHED); | |
| 526 | |
| 527 if (parse_stacksize ("OMP_STACKSIZE", &stacksize) | |
| 528 || parse_stacksize ("GOMP_STACKSIZE", &stacksize)) | |
| 529 { | |
| 530 int err; | |
| 531 | |
| 532 err = pthread_attr_setstacksize (&gomp_thread_attr, stacksize); | |
| 533 | |
| 534 #ifdef PTHREAD_STACK_MIN | |
| 535 if (err == EINVAL) | |
| 536 { | |
| 537 if (stacksize < PTHREAD_STACK_MIN) | |
| 538 gomp_error ("Stack size less than minimum of %luk", | |
| 539 PTHREAD_STACK_MIN / 1024ul | |
| 540 + (PTHREAD_STACK_MIN % 1024 != 0)); | |
| 541 else | |
| 542 gomp_error ("Stack size larger than system limit"); | |
| 543 } | |
| 544 else | |
| 545 #endif | |
| 546 if (err != 0) | |
| 547 gomp_error ("Stack size change failed: %s", strerror (err)); | |
| 548 } | |
| 549 } | |
| 550 | |
| 551 | |
| 552 /* The public OpenMP API routines that access these variables. */ | |
| 553 | |
| 554 void | |
| 555 omp_set_num_threads (int n) | |
| 556 { | |
| 557 struct gomp_task_icv *icv = gomp_icv (true); | |
| 558 icv->nthreads_var = (n > 0 ? n : 1); | |
| 559 } | |
| 560 | |
| 561 void | |
| 562 omp_set_dynamic (int val) | |
| 563 { | |
| 564 struct gomp_task_icv *icv = gomp_icv (true); | |
| 565 icv->dyn_var = val; | |
| 566 } | |
| 567 | |
| 568 int | |
| 569 omp_get_dynamic (void) | |
| 570 { | |
| 571 struct gomp_task_icv *icv = gomp_icv (false); | |
| 572 return icv->dyn_var; | |
| 573 } | |
| 574 | |
| 575 void | |
| 576 omp_set_nested (int val) | |
| 577 { | |
| 578 struct gomp_task_icv *icv = gomp_icv (true); | |
| 579 icv->nest_var = val; | |
| 580 } | |
| 581 | |
| 582 int | |
| 583 omp_get_nested (void) | |
| 584 { | |
| 585 struct gomp_task_icv *icv = gomp_icv (false); | |
| 586 return icv->nest_var; | |
| 587 } | |
| 588 | |
| 589 void | |
| 590 omp_set_schedule (omp_sched_t kind, int modifier) | |
| 591 { | |
| 592 struct gomp_task_icv *icv = gomp_icv (true); | |
| 593 switch (kind) | |
| 594 { | |
| 595 case omp_sched_static: | |
| 596 if (modifier < 1) | |
| 597 modifier = 0; | |
| 598 icv->run_sched_modifier = modifier; | |
| 599 break; | |
| 600 case omp_sched_dynamic: | |
| 601 case omp_sched_guided: | |
| 602 if (modifier < 1) | |
| 603 modifier = 1; | |
| 604 icv->run_sched_modifier = modifier; | |
| 605 break; | |
| 606 case omp_sched_auto: | |
| 607 break; | |
| 608 default: | |
| 609 return; | |
| 610 } | |
| 611 icv->run_sched_var = kind; | |
| 612 } | |
| 613 | |
| 614 void | |
| 615 omp_get_schedule (omp_sched_t *kind, int *modifier) | |
| 616 { | |
| 617 struct gomp_task_icv *icv = gomp_icv (false); | |
| 618 *kind = icv->run_sched_var; | |
| 619 *modifier = icv->run_sched_modifier; | |
| 620 } | |
| 621 | |
| 622 int | |
| 623 omp_get_max_threads (void) | |
| 624 { | |
| 625 struct gomp_task_icv *icv = gomp_icv (false); | |
| 626 return icv->nthreads_var; | |
| 627 } | |
| 628 | |
| 629 int | |
| 630 omp_get_thread_limit (void) | |
| 631 { | |
| 632 return gomp_thread_limit_var > INT_MAX ? INT_MAX : gomp_thread_limit_var; | |
| 633 } | |
| 634 | |
| 635 void | |
| 636 omp_set_max_active_levels (int max_levels) | |
| 637 { | |
|
63
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
638 if (max_levels >= 0) |
| 0 | 639 gomp_max_active_levels_var = max_levels; |
| 640 } | |
| 641 | |
| 642 int | |
| 643 omp_get_max_active_levels (void) | |
| 644 { | |
| 645 return gomp_max_active_levels_var; | |
| 646 } | |
| 647 | |
| 648 ialias (omp_set_dynamic) | |
| 649 ialias (omp_set_nested) | |
| 650 ialias (omp_set_num_threads) | |
| 651 ialias (omp_get_dynamic) | |
| 652 ialias (omp_get_nested) | |
| 653 ialias (omp_set_schedule) | |
| 654 ialias (omp_get_schedule) | |
| 655 ialias (omp_get_max_threads) | |
| 656 ialias (omp_get_thread_limit) | |
| 657 ialias (omp_set_max_active_levels) | |
| 658 ialias (omp_get_max_active_levels) |