9355d0dc13
Using proc_bind clause on a nested #pragma omp parallel region with KMP_AFFINITY set causes an assertion error. This assertion occurs because the place-partition-var is not properly initialized in the nested master threads. Trying to get an intuitive result with KMP_AFFINITY + proc_bind is difficult because of how the KMP_AFFINITY gtid-to-place mapping occurs. This patch creates an initial place list no matter what affinity mechanism is used. For KMP_AFFINITY, the place-partition-var is initialized to all the places. Differential Revision: https://reviews.llvm.org/D55795 llvm-svn: 351227
34 lines
601 B
C
34 lines
601 B
C
// RUN: %libomp-compile && env KMP_AFFINITY=compact %libomp-run
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// REQUIRES: openmp-4.0
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#include <stdio.h>
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#include <stdint.h>
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#include <omp.h>
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#include "omp_testsuite.h"
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int test_nested_affinity_bug() {
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int a = 0;
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omp_set_nested(1);
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#pragma omp parallel num_threads(2) shared(a)
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{
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#pragma omp parallel num_threads(2) shared(a) proc_bind(close)
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{
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#pragma omp atomic
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a++;
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}
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}
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return 1;
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}
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int main() {
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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_nested_affinity_bug()) {
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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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