| 1 | // RUN: %libomp-compile-and-run |
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| 2 | #include <stdio.h> |
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| 3 | #include <math.h> |
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| 4 | #include "omp_testsuite.h" |
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| 5 | |
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| 6 | /* Utility function do spend some time in a loop */ |
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| 7 | int test_omp_task_private() |
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| 8 | { |
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| 9 | int i; |
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| 10 | int known_sum; |
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| 11 | int sum = 0; |
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| 12 | int result = 0; /* counts the wrong sums from tasks */ |
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| 13 | |
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| 14 | known_sum = (LOOPCOUNT * (LOOPCOUNT + 1)) / 2; |
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| 15 | |
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| 16 | #pragma omp parallel |
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| 17 | { |
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| 18 | #pragma omp single |
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| 19 | { |
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| 20 | for (i = 0; i < NUM_TASKS; i++) { |
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| 21 | #pragma omp task private(sum) shared(result, known_sum) |
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| 22 | { |
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| 23 | int j; |
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| 24 | //if sum is private, initialize to 0 |
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| 25 | sum = 0; |
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| 26 | for (j = 0; j <= LOOPCOUNT; j++) { |
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| 27 | #pragma omp flush |
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| 28 | sum += j; |
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| 29 | } |
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| 30 | /* check if calculated sum was right */ |
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| 31 | if (sum != known_sum) { |
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| 32 | #pragma omp critical |
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| 33 | result++; |
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| 34 | } |
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| 35 | } /* end of omp task */ |
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| 36 | } /* end of for */ |
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| 37 | } /* end of single */ |
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| 38 | } /* end of parallel*/ |
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| 39 | return (result == 0); |
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| 40 | } |
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| 41 | |
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| 42 | int main() |
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| 43 | { |
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| 44 | int i; |
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| 45 | int num_failed=0; |
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| 46 | |
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| 47 | for(i = 0; i < REPETITIONS; i++) { |
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| 48 | if(!test_omp_task_private()) { |
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| 49 | num_failed++; |
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| 50 | } |
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| 51 | } |
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| 52 | return num_failed; |
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| 53 | } |
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| 54 | |
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