forked from OSchip/llvm-project
47 lines
954 B
C
47 lines
954 B
C
// RUN: %libomp-compile-and-run
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#include <stdio.h>
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#include "omp_testsuite.h"
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int test_omp_parallel_num_threads()
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{
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int num_failed;
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int threads;
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int nthreads;
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int max_threads = 0;
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num_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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nthreads = 0;
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#pragma omp parallel reduction(+:num_failed) num_threads(threads)
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{
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num_failed = num_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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num_failed = num_failed + !(nthreads == threads);
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}
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return (!num_failed);
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}
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int main()
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{
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int i;
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int num_failed=0;
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for(i = 0; i < REPETITIONS; i++) {
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if(!test_omp_parallel_num_threads()) {
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num_failed++;
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}
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}
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return num_failed;
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}
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