47 lines
954 B
C
47 lines
954 B
C
// RUN: %libomp-compile-and-run
|
|
#include <stdio.h>
|
|
#include "omp_testsuite.h"
|
|
|
|
int test_omp_parallel_num_threads()
|
|
{
|
|
int num_failed;
|
|
int threads;
|
|
int nthreads;
|
|
int max_threads = 0;
|
|
|
|
num_failed = 0;
|
|
|
|
/* first we check how many threads are available */
|
|
#pragma omp parallel
|
|
{
|
|
#pragma omp master
|
|
max_threads = omp_get_num_threads ();
|
|
}
|
|
|
|
/* we increase the number of threads from one to maximum:*/
|
|
for(threads = 1; threads <= max_threads; threads++) {
|
|
nthreads = 0;
|
|
#pragma omp parallel reduction(+:num_failed) num_threads(threads)
|
|
{
|
|
num_failed = num_failed + !(threads == omp_get_num_threads());
|
|
#pragma omp atomic
|
|
nthreads += 1;
|
|
}
|
|
num_failed = num_failed + !(nthreads == threads);
|
|
}
|
|
return (!num_failed);
|
|
}
|
|
|
|
int main()
|
|
{
|
|
int i;
|
|
int num_failed=0;
|
|
|
|
for(i = 0; i < REPETITIONS; i++) {
|
|
if(!test_omp_parallel_num_threads()) {
|
|
num_failed++;
|
|
}
|
|
}
|
|
return num_failed;
|
|
}
|