1 #include <omp.h> 2 #include <stdlib.h> 3 4 int 5 main (void) 6 { 7 int i = -1, j = -1; 8 9 omp_set_nested (0); 10 omp_set_dynamic (0); 11 #pragma omp parallel num_threads (4) 12 { 13 #pragma omp single 14 { 15 i = omp_get_thread_num () + omp_get_num_threads () * 256; 16 #pragma omp parallel num_threads (2) 17 { 18 #pragma omp single 19 { 20 j = omp_get_thread_num () + omp_get_num_threads () * 256; 21 } 22 } 23 } 24 } 25 if (i < 4 * 256 || i >= 4 * 256 + 4) 26 abort (); 27 if (j != 256 + 0) 28 abort (); 29 return 0; 30 } 31