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