758 lines
17 KiB
C
758 lines
17 KiB
C
/* Copyright (C) 2005-2013 Free Software Foundation, Inc.
|
||
Contributed by Richard Henderson <rth@redhat.com>.
|
||
|
||
This file is part of the GNU OpenMP Library (libgomp).
|
||
|
||
Libgomp is free software; you can redistribute it and/or modify it
|
||
under the terms of the GNU General Public License as published by
|
||
the Free Software Foundation; either version 3, or (at your option)
|
||
any later version.
|
||
|
||
Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY
|
||
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
|
||
FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
||
more details.
|
||
|
||
Under Section 7 of GPL version 3, you are granted additional
|
||
permissions described in the GCC Runtime Library Exception, version
|
||
3.1, as published by the Free Software Foundation.
|
||
|
||
You should have received a copy of the GNU General Public License and
|
||
a copy of the GCC Runtime Library Exception along with this program;
|
||
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
|
||
<http://www.gnu.org/licenses/>. */
|
||
|
||
/* This file defines the OpenMP internal control variables, and arranges
|
||
for them to be initialized from environment variables at startup. */
|
||
|
||
#include "libgomp.h"
|
||
#include "libgomp_f.h"
|
||
#include <ctype.h>
|
||
#include <stdlib.h>
|
||
#ifdef STRING_WITH_STRINGS
|
||
# include <string.h>
|
||
# include <strings.h>
|
||
#else
|
||
# ifdef HAVE_STRING_H
|
||
# include <string.h>
|
||
# else
|
||
# ifdef HAVE_STRINGS_H
|
||
# include <strings.h>
|
||
# endif
|
||
# endif
|
||
#endif
|
||
#include <limits.h>
|
||
#include <errno.h>
|
||
|
||
#ifndef HAVE_STRTOULL
|
||
# define strtoull(ptr, eptr, base) strtoul (ptr, eptr, base)
|
||
#endif
|
||
|
||
struct gomp_task_icv gomp_global_icv = {
|
||
.nthreads_var = 1,
|
||
.run_sched_var = GFS_DYNAMIC,
|
||
.run_sched_modifier = 1,
|
||
.dyn_var = false,
|
||
.nest_var = false
|
||
};
|
||
|
||
unsigned short *gomp_cpu_affinity;
|
||
size_t gomp_cpu_affinity_len;
|
||
unsigned long gomp_max_active_levels_var = INT_MAX;
|
||
unsigned long gomp_thread_limit_var = ULONG_MAX;
|
||
unsigned long gomp_remaining_threads_count;
|
||
#ifndef HAVE_SYNC_BUILTINS
|
||
gomp_mutex_t gomp_remaining_threads_lock;
|
||
#endif
|
||
unsigned long gomp_available_cpus = 1, gomp_managed_threads = 1;
|
||
unsigned long long gomp_spin_count_var, gomp_throttled_spin_count_var;
|
||
unsigned long *gomp_nthreads_var_list, gomp_nthreads_var_list_len;
|
||
|
||
/* Parse the OMP_SCHEDULE environment variable. */
|
||
|
||
static void
|
||
parse_schedule (void)
|
||
{
|
||
char *env, *end;
|
||
unsigned long value;
|
||
|
||
env = getenv ("OMP_SCHEDULE");
|
||
if (env == NULL)
|
||
return;
|
||
|
||
while (isspace ((unsigned char) *env))
|
||
++env;
|
||
if (strncasecmp (env, "static", 6) == 0)
|
||
{
|
||
gomp_global_icv.run_sched_var = GFS_STATIC;
|
||
env += 6;
|
||
}
|
||
else if (strncasecmp (env, "dynamic", 7) == 0)
|
||
{
|
||
gomp_global_icv.run_sched_var = GFS_DYNAMIC;
|
||
env += 7;
|
||
}
|
||
else if (strncasecmp (env, "guided", 6) == 0)
|
||
{
|
||
gomp_global_icv.run_sched_var = GFS_GUIDED;
|
||
env += 6;
|
||
}
|
||
else if (strncasecmp (env, "auto", 4) == 0)
|
||
{
|
||
gomp_global_icv.run_sched_var = GFS_AUTO;
|
||
env += 4;
|
||
}
|
||
else
|
||
goto unknown;
|
||
|
||
while (isspace ((unsigned char) *env))
|
||
++env;
|
||
if (*env == '\0')
|
||
{
|
||
gomp_global_icv.run_sched_modifier
|
||
= gomp_global_icv.run_sched_var != GFS_STATIC;
|
||
return;
|
||
}
|
||
if (*env++ != ',')
|
||
goto unknown;
|
||
while (isspace ((unsigned char) *env))
|
||
++env;
|
||
if (*env == '\0')
|
||
goto invalid;
|
||
|
||
errno = 0;
|
||
value = strtoul (env, &end, 10);
|
||
if (errno)
|
||
goto invalid;
|
||
|
||
while (isspace ((unsigned char) *end))
|
||
++end;
|
||
if (*end != '\0')
|
||
goto invalid;
|
||
|
||
if ((int)value != value)
|
||
goto invalid;
|
||
|
||
if (value == 0 && gomp_global_icv.run_sched_var != GFS_STATIC)
|
||
value = 1;
|
||
gomp_global_icv.run_sched_modifier = value;
|
||
return;
|
||
|
||
unknown:
|
||
gomp_error ("Unknown value for environment variable OMP_SCHEDULE");
|
||
return;
|
||
|
||
invalid:
|
||
gomp_error ("Invalid value for chunk size in "
|
||
"environment variable OMP_SCHEDULE");
|
||
return;
|
||
}
|
||
|
||
/* Parse an unsigned long environment variable. Return true if one was
|
||
present and it was successfully parsed. */
|
||
|
||
static bool
|
||
parse_unsigned_long (const char *name, unsigned long *pvalue, bool allow_zero)
|
||
{
|
||
char *env, *end;
|
||
unsigned long value;
|
||
|
||
env = getenv (name);
|
||
if (env == NULL)
|
||
return false;
|
||
|
||
while (isspace ((unsigned char) *env))
|
||
++env;
|
||
if (*env == '\0')
|
||
goto invalid;
|
||
|
||
errno = 0;
|
||
value = strtoul (env, &end, 10);
|
||
if (errno || (long) value <= 0 - allow_zero)
|
||
goto invalid;
|
||
|
||
while (isspace ((unsigned char) *end))
|
||
++end;
|
||
if (*end != '\0')
|
||
goto invalid;
|
||
|
||
*pvalue = value;
|
||
return true;
|
||
|
||
invalid:
|
||
gomp_error ("Invalid value for environment variable %s", name);
|
||
return false;
|
||
}
|
||
|
||
/* Parse an unsigned long list environment variable. Return true if one was
|
||
present and it was successfully parsed. */
|
||
|
||
static bool
|
||
parse_unsigned_long_list (const char *name, unsigned long *p1stvalue,
|
||
unsigned long **pvalues,
|
||
unsigned long *pnvalues)
|
||
{
|
||
char *env, *end;
|
||
unsigned long value, *values = NULL;
|
||
|
||
env = getenv (name);
|
||
if (env == NULL)
|
||
return false;
|
||
|
||
while (isspace ((unsigned char) *env))
|
||
++env;
|
||
if (*env == '\0')
|
||
goto invalid;
|
||
|
||
errno = 0;
|
||
value = strtoul (env, &end, 10);
|
||
if (errno || (long) value <= 0)
|
||
goto invalid;
|
||
|
||
while (isspace ((unsigned char) *end))
|
||
++end;
|
||
if (*end != '\0')
|
||
{
|
||
if (*end == ',')
|
||
{
|
||
unsigned long nvalues = 0, nalloced = 0;
|
||
|
||
do
|
||
{
|
||
env = end + 1;
|
||
if (nvalues == nalloced)
|
||
{
|
||
unsigned long *n;
|
||
nalloced = nalloced ? nalloced * 2 : 16;
|
||
n = realloc (values, nalloced * sizeof (unsigned long));
|
||
if (n == NULL)
|
||
{
|
||
free (values);
|
||
gomp_error ("Out of memory while trying to parse"
|
||
" environment variable %s", name);
|
||
return false;
|
||
}
|
||
values = n;
|
||
if (nvalues == 0)
|
||
values[nvalues++] = value;
|
||
}
|
||
|
||
while (isspace ((unsigned char) *env))
|
||
++env;
|
||
if (*env == '\0')
|
||
goto invalid;
|
||
|
||
errno = 0;
|
||
value = strtoul (env, &end, 10);
|
||
if (errno || (long) value <= 0)
|
||
goto invalid;
|
||
|
||
values[nvalues++] = value;
|
||
while (isspace ((unsigned char) *end))
|
||
++end;
|
||
if (*end == '\0')
|
||
break;
|
||
if (*end != ',')
|
||
goto invalid;
|
||
}
|
||
while (1);
|
||
*p1stvalue = values[0];
|
||
*pvalues = values;
|
||
*pnvalues = nvalues;
|
||
return true;
|
||
}
|
||
goto invalid;
|
||
}
|
||
|
||
*p1stvalue = value;
|
||
return true;
|
||
|
||
invalid:
|
||
free (values);
|
||
gomp_error ("Invalid value for environment variable %s", name);
|
||
return false;
|
||
}
|
||
|
||
/* Parse the OMP_STACKSIZE environment varible. Return true if one was
|
||
present and it was successfully parsed. */
|
||
|
||
static bool
|
||
parse_stacksize (const char *name, unsigned long *pvalue)
|
||
{
|
||
char *env, *end;
|
||
unsigned long value, shift = 10;
|
||
|
||
env = getenv (name);
|
||
if (env == NULL)
|
||
return false;
|
||
|
||
while (isspace ((unsigned char) *env))
|
||
++env;
|
||
if (*env == '\0')
|
||
goto invalid;
|
||
|
||
errno = 0;
|
||
value = strtoul (env, &end, 10);
|
||
if (errno)
|
||
goto invalid;
|
||
|
||
while (isspace ((unsigned char) *end))
|
||
++end;
|
||
if (*end != '\0')
|
||
{
|
||
switch (tolower ((unsigned char) *end))
|
||
{
|
||
case 'b':
|
||
shift = 0;
|
||
break;
|
||
case 'k':
|
||
break;
|
||
case 'm':
|
||
shift = 20;
|
||
break;
|
||
case 'g':
|
||
shift = 30;
|
||
break;
|
||
default:
|
||
goto invalid;
|
||
}
|
||
++end;
|
||
while (isspace ((unsigned char) *end))
|
||
++end;
|
||
if (*end != '\0')
|
||
goto invalid;
|
||
}
|
||
|
||
if (((value << shift) >> shift) != value)
|
||
goto invalid;
|
||
|
||
*pvalue = value << shift;
|
||
return true;
|
||
|
||
invalid:
|
||
gomp_error ("Invalid value for environment variable %s", name);
|
||
return false;
|
||
}
|
||
|
||
/* Parse the GOMP_SPINCOUNT environment varible. Return true if one was
|
||
present and it was successfully parsed. */
|
||
|
||
static bool
|
||
parse_spincount (const char *name, unsigned long long *pvalue)
|
||
{
|
||
char *env, *end;
|
||
unsigned long long value, mult = 1;
|
||
|
||
env = getenv (name);
|
||
if (env == NULL)
|
||
return false;
|
||
|
||
while (isspace ((unsigned char) *env))
|
||
++env;
|
||
if (*env == '\0')
|
||
goto invalid;
|
||
|
||
if (strncasecmp (env, "infinite", 8) == 0
|
||
|| strncasecmp (env, "infinity", 8) == 0)
|
||
{
|
||
value = ~0ULL;
|
||
end = env + 8;
|
||
goto check_tail;
|
||
}
|
||
|
||
errno = 0;
|
||
value = strtoull (env, &end, 10);
|
||
if (errno)
|
||
goto invalid;
|
||
|
||
while (isspace ((unsigned char) *end))
|
||
++end;
|
||
if (*end != '\0')
|
||
{
|
||
switch (tolower ((unsigned char) *end))
|
||
{
|
||
case 'k':
|
||
mult = 1000LL;
|
||
break;
|
||
case 'm':
|
||
mult = 1000LL * 1000LL;
|
||
break;
|
||
case 'g':
|
||
mult = 1000LL * 1000LL * 1000LL;
|
||
break;
|
||
case 't':
|
||
mult = 1000LL * 1000LL * 1000LL * 1000LL;
|
||
break;
|
||
default:
|
||
goto invalid;
|
||
}
|
||
++end;
|
||
check_tail:
|
||
while (isspace ((unsigned char) *end))
|
||
++end;
|
||
if (*end != '\0')
|
||
goto invalid;
|
||
}
|
||
|
||
if (value > ~0ULL / mult)
|
||
value = ~0ULL;
|
||
else
|
||
value *= mult;
|
||
|
||
*pvalue = value;
|
||
return true;
|
||
|
||
invalid:
|
||
gomp_error ("Invalid value for environment variable %s", name);
|
||
return false;
|
||
}
|
||
|
||
/* Parse a boolean value for environment variable NAME and store the
|
||
result in VALUE. */
|
||
|
||
static void
|
||
parse_boolean (const char *name, bool *value)
|
||
{
|
||
const char *env;
|
||
|
||
env = getenv (name);
|
||
if (env == NULL)
|
||
return;
|
||
|
||
while (isspace ((unsigned char) *env))
|
||
++env;
|
||
if (strncasecmp (env, "true", 4) == 0)
|
||
{
|
||
*value = true;
|
||
env += 4;
|
||
}
|
||
else if (strncasecmp (env, "false", 5) == 0)
|
||
{
|
||
*value = false;
|
||
env += 5;
|
||
}
|
||
else
|
||
env = "X";
|
||
while (isspace ((unsigned char) *env))
|
||
++env;
|
||
if (*env != '\0')
|
||
gomp_error ("Invalid value for environment variable %s", name);
|
||
}
|
||
|
||
/* Parse the OMP_WAIT_POLICY environment variable and store the
|
||
result in gomp_active_wait_policy. */
|
||
|
||
static int
|
||
parse_wait_policy (void)
|
||
{
|
||
const char *env;
|
||
int ret = -1;
|
||
|
||
env = getenv ("OMP_WAIT_POLICY");
|
||
if (env == NULL)
|
||
return -1;
|
||
|
||
while (isspace ((unsigned char) *env))
|
||
++env;
|
||
if (strncasecmp (env, "active", 6) == 0)
|
||
{
|
||
ret = 1;
|
||
env += 6;
|
||
}
|
||
else if (strncasecmp (env, "passive", 7) == 0)
|
||
{
|
||
ret = 0;
|
||
env += 7;
|
||
}
|
||
else
|
||
env = "X";
|
||
while (isspace ((unsigned char) *env))
|
||
++env;
|
||
if (*env == '\0')
|
||
return ret;
|
||
gomp_error ("Invalid value for environment variable OMP_WAIT_POLICY");
|
||
return -1;
|
||
}
|
||
|
||
/* Parse the GOMP_CPU_AFFINITY environment varible. Return true if one was
|
||
present and it was successfully parsed. */
|
||
|
||
static bool
|
||
parse_affinity (void)
|
||
{
|
||
char *env, *end;
|
||
unsigned long cpu_beg, cpu_end, cpu_stride;
|
||
unsigned short *cpus = NULL;
|
||
size_t allocated = 0, used = 0, needed;
|
||
|
||
env = getenv ("GOMP_CPU_AFFINITY");
|
||
if (env == NULL)
|
||
return false;
|
||
|
||
do
|
||
{
|
||
while (*env == ' ' || *env == '\t')
|
||
env++;
|
||
|
||
cpu_beg = strtoul (env, &end, 0);
|
||
cpu_end = cpu_beg;
|
||
cpu_stride = 1;
|
||
if (env == end || cpu_beg >= 65536)
|
||
goto invalid;
|
||
|
||
env = end;
|
||
if (*env == '-')
|
||
{
|
||
cpu_end = strtoul (++env, &end, 0);
|
||
if (env == end || cpu_end >= 65536 || cpu_end < cpu_beg)
|
||
goto invalid;
|
||
|
||
env = end;
|
||
if (*env == ':')
|
||
{
|
||
cpu_stride = strtoul (++env, &end, 0);
|
||
if (env == end || cpu_stride == 0 || cpu_stride >= 65536)
|
||
goto invalid;
|
||
|
||
env = end;
|
||
}
|
||
}
|
||
|
||
needed = (cpu_end - cpu_beg) / cpu_stride + 1;
|
||
if (used + needed >= allocated)
|
||
{
|
||
unsigned short *new_cpus;
|
||
|
||
if (allocated < 64)
|
||
allocated = 64;
|
||
if (allocated > needed)
|
||
allocated <<= 1;
|
||
else
|
||
allocated += 2 * needed;
|
||
new_cpus = realloc (cpus, allocated * sizeof (unsigned short));
|
||
if (new_cpus == NULL)
|
||
{
|
||
free (cpus);
|
||
gomp_error ("not enough memory to store GOMP_CPU_AFFINITY list");
|
||
return false;
|
||
}
|
||
|
||
cpus = new_cpus;
|
||
}
|
||
|
||
while (needed--)
|
||
{
|
||
cpus[used++] = cpu_beg;
|
||
cpu_beg += cpu_stride;
|
||
}
|
||
|
||
while (*env == ' ' || *env == '\t')
|
||
env++;
|
||
|
||
if (*env == ',')
|
||
env++;
|
||
else if (*env == '\0')
|
||
break;
|
||
}
|
||
while (1);
|
||
|
||
gomp_cpu_affinity = cpus;
|
||
gomp_cpu_affinity_len = used;
|
||
return true;
|
||
|
||
invalid:
|
||
gomp_error ("Invalid value for enviroment variable GOMP_CPU_AFFINITY");
|
||
return false;
|
||
}
|
||
|
||
static void __attribute__((constructor))
|
||
initialize_env (void)
|
||
{
|
||
unsigned long stacksize;
|
||
int wait_policy;
|
||
bool bind_var = false;
|
||
|
||
/* Do a compile time check that mkomp_h.pl did good job. */
|
||
omp_check_defines ();
|
||
|
||
parse_schedule ();
|
||
parse_boolean ("OMP_DYNAMIC", &gomp_global_icv.dyn_var);
|
||
parse_boolean ("OMP_NESTED", &gomp_global_icv.nest_var);
|
||
parse_boolean ("OMP_PROC_BIND", &bind_var);
|
||
parse_unsigned_long ("OMP_MAX_ACTIVE_LEVELS", &gomp_max_active_levels_var,
|
||
true);
|
||
parse_unsigned_long ("OMP_THREAD_LIMIT", &gomp_thread_limit_var, false);
|
||
if (gomp_thread_limit_var != ULONG_MAX)
|
||
gomp_remaining_threads_count = gomp_thread_limit_var - 1;
|
||
#ifndef HAVE_SYNC_BUILTINS
|
||
gomp_mutex_init (&gomp_remaining_threads_lock);
|
||
#endif
|
||
gomp_init_num_threads ();
|
||
gomp_available_cpus = gomp_global_icv.nthreads_var;
|
||
if (!parse_unsigned_long_list ("OMP_NUM_THREADS",
|
||
&gomp_global_icv.nthreads_var,
|
||
&gomp_nthreads_var_list,
|
||
&gomp_nthreads_var_list_len))
|
||
gomp_global_icv.nthreads_var = gomp_available_cpus;
|
||
if (parse_affinity () || bind_var)
|
||
gomp_init_affinity ();
|
||
wait_policy = parse_wait_policy ();
|
||
if (!parse_spincount ("GOMP_SPINCOUNT", &gomp_spin_count_var))
|
||
{
|
||
/* Using a rough estimation of 100000 spins per msec,
|
||
use 5 min blocking for OMP_WAIT_POLICY=active,
|
||
3 msec blocking when OMP_WAIT_POLICY is not specificed
|
||
and 0 when OMP_WAIT_POLICY=passive.
|
||
Depending on the CPU speed, this can be e.g. 5 times longer
|
||
or 5 times shorter. */
|
||
if (wait_policy > 0)
|
||
gomp_spin_count_var = 30000000000LL;
|
||
else if (wait_policy < 0)
|
||
gomp_spin_count_var = 300000LL;
|
||
}
|
||
/* gomp_throttled_spin_count_var is used when there are more libgomp
|
||
managed threads than available CPUs. Use very short spinning. */
|
||
if (wait_policy > 0)
|
||
gomp_throttled_spin_count_var = 1000LL;
|
||
else if (wait_policy < 0)
|
||
gomp_throttled_spin_count_var = 100LL;
|
||
if (gomp_throttled_spin_count_var > gomp_spin_count_var)
|
||
gomp_throttled_spin_count_var = gomp_spin_count_var;
|
||
|
||
/* Not strictly environment related, but ordering constructors is tricky. */
|
||
pthread_attr_init (&gomp_thread_attr);
|
||
pthread_attr_setdetachstate (&gomp_thread_attr, PTHREAD_CREATE_DETACHED);
|
||
|
||
if (parse_stacksize ("OMP_STACKSIZE", &stacksize)
|
||
|| parse_stacksize ("GOMP_STACKSIZE", &stacksize))
|
||
{
|
||
int err;
|
||
|
||
err = pthread_attr_setstacksize (&gomp_thread_attr, stacksize);
|
||
|
||
#ifdef PTHREAD_STACK_MIN
|
||
if (err == EINVAL)
|
||
{
|
||
if (stacksize < PTHREAD_STACK_MIN)
|
||
gomp_error ("Stack size less than minimum of %luk",
|
||
PTHREAD_STACK_MIN / 1024ul
|
||
+ (PTHREAD_STACK_MIN % 1024 != 0));
|
||
else
|
||
gomp_error ("Stack size larger than system limit");
|
||
}
|
||
else
|
||
#endif
|
||
if (err != 0)
|
||
gomp_error ("Stack size change failed: %s", strerror (err));
|
||
}
|
||
}
|
||
|
||
|
||
/* The public OpenMP API routines that access these variables. */
|
||
|
||
void
|
||
omp_set_num_threads (int n)
|
||
{
|
||
struct gomp_task_icv *icv = gomp_icv (true);
|
||
icv->nthreads_var = (n > 0 ? n : 1);
|
||
}
|
||
|
||
void
|
||
omp_set_dynamic (int val)
|
||
{
|
||
struct gomp_task_icv *icv = gomp_icv (true);
|
||
icv->dyn_var = val;
|
||
}
|
||
|
||
int
|
||
omp_get_dynamic (void)
|
||
{
|
||
struct gomp_task_icv *icv = gomp_icv (false);
|
||
return icv->dyn_var;
|
||
}
|
||
|
||
void
|
||
omp_set_nested (int val)
|
||
{
|
||
struct gomp_task_icv *icv = gomp_icv (true);
|
||
icv->nest_var = val;
|
||
}
|
||
|
||
int
|
||
omp_get_nested (void)
|
||
{
|
||
struct gomp_task_icv *icv = gomp_icv (false);
|
||
return icv->nest_var;
|
||
}
|
||
|
||
void
|
||
omp_set_schedule (omp_sched_t kind, int modifier)
|
||
{
|
||
struct gomp_task_icv *icv = gomp_icv (true);
|
||
switch (kind)
|
||
{
|
||
case omp_sched_static:
|
||
if (modifier < 1)
|
||
modifier = 0;
|
||
icv->run_sched_modifier = modifier;
|
||
break;
|
||
case omp_sched_dynamic:
|
||
case omp_sched_guided:
|
||
if (modifier < 1)
|
||
modifier = 1;
|
||
icv->run_sched_modifier = modifier;
|
||
break;
|
||
case omp_sched_auto:
|
||
break;
|
||
default:
|
||
return;
|
||
}
|
||
icv->run_sched_var = kind;
|
||
}
|
||
|
||
void
|
||
omp_get_schedule (omp_sched_t *kind, int *modifier)
|
||
{
|
||
struct gomp_task_icv *icv = gomp_icv (false);
|
||
*kind = icv->run_sched_var;
|
||
*modifier = icv->run_sched_modifier;
|
||
}
|
||
|
||
int
|
||
omp_get_max_threads (void)
|
||
{
|
||
struct gomp_task_icv *icv = gomp_icv (false);
|
||
return icv->nthreads_var;
|
||
}
|
||
|
||
int
|
||
omp_get_thread_limit (void)
|
||
{
|
||
return gomp_thread_limit_var > INT_MAX ? INT_MAX : gomp_thread_limit_var;
|
||
}
|
||
|
||
void
|
||
omp_set_max_active_levels (int max_levels)
|
||
{
|
||
if (max_levels >= 0)
|
||
gomp_max_active_levels_var = max_levels;
|
||
}
|
||
|
||
int
|
||
omp_get_max_active_levels (void)
|
||
{
|
||
return gomp_max_active_levels_var;
|
||
}
|
||
|
||
ialias (omp_set_dynamic)
|
||
ialias (omp_set_nested)
|
||
ialias (omp_set_num_threads)
|
||
ialias (omp_get_dynamic)
|
||
ialias (omp_get_nested)
|
||
ialias (omp_set_schedule)
|
||
ialias (omp_get_schedule)
|
||
ialias (omp_get_max_threads)
|
||
ialias (omp_get_thread_limit)
|
||
ialias (omp_set_max_active_levels)
|
||
ialias (omp_get_max_active_levels)
|