47 lines
1.3 KiB
C
47 lines
1.3 KiB
C
<ompts:test>
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<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>
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<ompts:ompversion>3.0</ompts:ompversion>
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<ompts:directive>omp parellel num_threads</ompts:directive>
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<ompts:dependences>omp master,omp parallel reduction,omp atomic</ompts:dependences>
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<ompts:testcode>
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#include <stdio.h>
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#include "omp_testsuite.h"
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int <ompts:testcode:functionname>omp_parallel_num_threads</ompts:testcode:functionname>(FILE * logFile){
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<ompts:orphan:vars>
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int failed;
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int threads;
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int nthreads;
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</ompts:orphan:vars>
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int max_threads = 0;
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failed = 0;
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/* first we check how many threads are available */
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#pragma omp parallel
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{
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#pragma omp master
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max_threads = omp_get_num_threads ();
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}
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/* we increase the number of threads from one to maximum:*/
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for (threads = 1; threads <= max_threads; threads++)
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{
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nthreads = 0;
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<ompts:orphan>
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#pragma omp parallel reduction(+:failed) <ompts:check>num_threads(threads)</ompts:check>
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{
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failed = failed + !(threads == omp_get_num_threads ());
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#pragma omp atomic
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nthreads += 1;
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}
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</ompts:orphan>
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failed = failed + !(nthreads == threads);
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}
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return (!failed);
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}
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</ompts:testcode>
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</ompts:test>
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