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<ompts:test>
<ompts:testdescription>Test which checks the omp_parallel_num_threads directive by counting the threads in a parallel region which was started with an explicitly stated number of threads.</ompts:testdescription>
<ompts:ompversion>3.0</ompts:ompversion>
<ompts:directive>omp parellel num_threads</ompts:directive>
<ompts:dependences>omp master,omp parallel reduction,omp atomic</ompts:dependences>
<ompts:testcode>
#include <stdio.h>
#include "omp_testsuite.h"
int <ompts:testcode:functionname>omp_parallel_num_threads</ompts:testcode:functionname>(FILE * logFile){
<ompts:orphan:vars>
int failed;
int threads;
int nthreads;
</ompts:orphan:vars>
int max_threads = 0;
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;
<ompts:orphan>
#pragma omp parallel reduction(+:failed) <ompts:check>num_threads(threads)</ompts:check>
{
failed = failed + !(threads == omp_get_num_threads ());
#pragma omp atomic
nthreads += 1;
}
</ompts:orphan>
failed = failed + !(nthreads == threads);
}
return (!failed);
}
</ompts:testcode>
</ompts:test>
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