| 1 | // RUN: %libomp-compile-and-run |
|---|---|
| 2 | #include <stdio.h> |
| 3 | #include "omp_testsuite.h" |
| 4 | #include "omp_my_sleep.h" |
| 5 | |
| 6 | int test_omp_flush() |
| 7 | { |
| 8 | int result1; |
| 9 | int result2; |
| 10 | int dummy; |
| 11 | |
| 12 | result1 = 0; |
| 13 | result2 = 0; |
| 14 | |
| 15 | #pragma omp parallel |
| 16 | { |
| 17 | int rank; |
| 18 | rank = omp_get_thread_num (); |
| 19 | #pragma omp barrier |
| 20 | if (rank == 1) { |
| 21 | result2 = 3; |
| 22 | #pragma omp flush (result2) |
| 23 | dummy = result2; |
| 24 | } |
| 25 | if (rank == 0) { |
| 26 | my_sleep(SLEEPTIME); |
| 27 | #pragma omp flush (result2) |
| 28 | result1 = result2; |
| 29 | } |
| 30 | } /* end of parallel */ |
| 31 | return ((result1 == result2) && (result2 == dummy) && (result2 == 3)); |
| 32 | } |
| 33 | |
| 34 | int main() |
| 35 | { |
| 36 | int i; |
| 37 | int num_failed=0; |
| 38 | |
| 39 | // the test requires more than 1 thread to pass |
| 40 | omp_set_dynamic(0); // disable dynamic adjustment of threads |
| 41 | if (omp_get_max_threads() == 1) |
| 42 | omp_set_num_threads(2); // set 2 threads if no HW resources available |
| 43 | |
| 44 | for (i = 0; i < REPETITIONS; i++) { |
| 45 | if(!test_omp_flush()) { |
| 46 | num_failed++; |
| 47 | } |
| 48 | } |
| 49 | return num_failed; |
| 50 | } |
| 51 |