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