| 1 | // RUN: %libomp-compile-and-run |
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| 2 | |
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| 3 | #include <stdio.h> |
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| 4 | #include <omp.h> |
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| 5 | |
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| 6 | int main() { |
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| 7 | omp_alloctrait_t at[2]; |
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| 8 | omp_allocator_handle_t a; |
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| 9 | void *p[2]; |
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| 10 | at[0].key = omp_atk_pool_size; |
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| 11 | at[0].value = 2 * 1024 * 1024; |
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| 12 | at[1].key = omp_atk_fallback; |
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| 13 | at[1].value = omp_atv_null_fb; |
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| 14 | a = omp_init_allocator(omp_high_bw_mem_space, 2, at); |
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| 15 | printf("allocator hbw created: %p\n" , (void *)a); |
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| 16 | #pragma omp parallel num_threads(2) |
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| 17 | { |
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| 18 | int i = omp_get_thread_num(); |
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| 19 | p[i] = omp_alloc(1024 * 1024, a); |
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| 20 | #pragma omp barrier |
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| 21 | printf(format: "th %d, ptr %p\n" , i, p[i]); |
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| 22 | omp_free(p[i], a); |
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| 23 | } |
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| 24 | if (a != omp_null_allocator) { |
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| 25 | // As an allocator has some small memory overhead |
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| 26 | // exactly one of the two pointers should be NULL |
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| 27 | // because of NULL fallback requested |
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| 28 | if ((p[0] == NULL && p[1] != NULL) || (p[0] != NULL && p[1] == NULL)) { |
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| 29 | printf(format: "passed\n" ); |
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| 30 | return 0; |
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| 31 | } else { |
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| 32 | printf(format: "failed: pointers %p %p\n" , p[0], p[1]); |
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| 33 | return 1; |
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| 34 | } |
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| 35 | } else { |
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| 36 | // NULL allocator should cause default allocations |
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| 37 | if (p[0] != NULL && p[1] != NULL) { |
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| 38 | printf(format: "passed\n" ); |
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| 39 | return 0; |
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| 40 | } else { |
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| 41 | printf(format: "failed: pointers %p %p\n" , p[0], p[1]); |
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| 42 | return 1; |
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| 43 | } |
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| 44 | } |
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| 45 | } |
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| 46 | |
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