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32 lines
653 B
C
32 lines
653 B
C
/* Ensure that nested parallel regions work even when the number of loop
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iterations is not divisible by the number of threads. */
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#include <stdlib.h>
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int main() {
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int A[30][40], B[30][40];
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size_t n = 30;
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for (size_t i = 0; i < 30; ++i)
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for (size_t j = 0; j < 40; ++j)
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A[i][j] = 42;
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#pragma omp target map(A[0:30][0:40], B[0:30][0:40])
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{
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#pragma omp parallel for num_threads(8)
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for (size_t i = 0; i < n; ++i)
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{
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#pragma omp parallel for
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for (size_t j = 0; j < n; ++j)
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{
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B[i][j] = A[i][j];
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}
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}
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}
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for (size_t i = 0; i < n; ++i)
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for (size_t j = 0; j < n; ++j)
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if (B[i][j] != 42)
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abort ();
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}
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