Viewing file:  affinity-2.c (1.9 KB) -rw-r--r--
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/* { dg-do run } */
/* { dg-set-target-env-var OMP_PROC_BIND "spread,close" } */
/* { dg-set-target-env-var OMP_PLACES "{6,7}:4:-2,!{2,3}" } */
/* { dg-set-target-env-var OMP_NUM_THREADS "2" } */
/* { dg-additional-options "-Wno-deprecated-declarations" } */
#include <omp.h>
#include <stdlib.h>
#include <stdio.h>
int *
get_buf (int nump)
{
static int *buf;
static size_t buf_size;
if ((size_t) nump > buf_size)
{
buf_size *= 2;
if (nump > buf_size)
buf_size = nump + 64;
int *bufn = realloc (buf, buf_size * sizeof (int));
if (bufn == NULL)
{
fprintf (stderr, "memory allocation error\n");
exit (1);
}
buf = bufn;
}
return buf;
}
void
print_place (int count, int *ids)
{
int i, j;
printf ("{");
for (i = 0; i < count; i++)
{
for (j = i + 1; j < count; j++)
if (ids[j] != ids[i] + (j - i))
break;
if (i)
printf (",");
if (j == i + 1)
printf ("%d", ids[i]);
else
{
printf ("%d:%d", ids[i], j - i);
i = j - 1;
}
}
printf ("}\n");
}
void
print_place_var (void)
{
int place = omp_get_place_num ();
int num_places = omp_get_partition_num_places ();
int *ids = get_buf (num_places);
omp_get_partition_place_nums (ids);
printf ("place %d\n", place);
if (num_places)
printf ("partition %d-%d\n", ids[0], ids[num_places - 1]);
}
int
main ()
{
int i, num = omp_get_num_places (), nump, *ids;
printf ("omp_get_num_places () == %d\n", num);
for (i = 0; i < num; i++)
{
printf ("place %d ", i);
nump = omp_get_place_num_procs (i);
ids = get_buf (nump);
omp_get_place_proc_ids (i, ids);
print_place (nump, ids);
}
print_place_var ();
omp_set_nested (1);
#pragma omp parallel
if (omp_get_thread_num () == omp_get_num_threads () - 1)
{
#pragma omp parallel
if (omp_get_thread_num () == omp_get_num_threads () - 1)
print_place_var ();
}
return 0;
}
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