diff options
Diffstat (limited to 'final/runtime/test/env/kmp_set_dispatch_buf.c')
-rw-r--r-- | final/runtime/test/env/kmp_set_dispatch_buf.c | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/final/runtime/test/env/kmp_set_dispatch_buf.c b/final/runtime/test/env/kmp_set_dispatch_buf.c new file mode 100644 index 0000000..49eb7b5 --- /dev/null +++ b/final/runtime/test/env/kmp_set_dispatch_buf.c @@ -0,0 +1,76 @@ +// RUN: %libomp-compile && env KMP_DISP_NUM_BUFFERS=0 %libomp-run +// RUN: env KMP_DISP_NUM_BUFFERS=1 %libomp-run && env KMP_DISP_NUM_BUFFERS=3 %libomp-run +// RUN: env KMP_DISP_NUM_BUFFERS=4 %libomp-run && env KMP_DISP_NUM_BUFFERS=7 %libomp-run +// RUN: %libomp-compile -DMY_SCHEDULE=guided && env KMP_DISP_NUM_BUFFERS=1 %libomp-run +// RUN: env KMP_DISP_NUM_BUFFERS=3 %libomp-run && env KMP_DISP_NUM_BUFFERS=4 %libomp-run +// RUN: env KMP_DISP_NUM_BUFFERS=7 %libomp-run +#include <stdio.h> +#include <omp.h> +#include <stdlib.h> +#include <limits.h> +#include "omp_testsuite.h" + +#define INCR 7 +#define MY_MAX 200 +#define MY_MIN -200 +#define NUM_LOOPS 100 +#ifndef MY_SCHEDULE +# define MY_SCHEDULE dynamic +#endif + +int a, b, a_known_value, b_known_value; + +int test_kmp_set_disp_num_buffers() +{ + int success = 1; + a = 0; + b = 0; + // run many small dynamic loops to stress the dispatch buffer system + #pragma omp parallel + { + int i,j; + for (j = 0; j < NUM_LOOPS; j++) { + #pragma omp for schedule(MY_SCHEDULE) nowait + for (i = MY_MIN; i < MY_MAX; i+=INCR) { + #pragma omp atomic + a++; + } + #pragma omp for schedule(MY_SCHEDULE) nowait + for (i = MY_MAX; i >= MY_MIN; i-=INCR) { + #pragma omp atomic + b++; + } + } + } + // detect failure + if (a != a_known_value || b != b_known_value) { + success = 0; + printf("a = %d (should be %d), b = %d (should be %d)\n", a, a_known_value, + b, b_known_value); + } + return success; +} + +int main(int argc, char** argv) +{ + int i,j; + int num_failed=0; + + // figure out the known values to compare with calculated result + a_known_value = 0; + b_known_value = 0; + + for (j = 0; j < NUM_LOOPS; j++) { + for (i = MY_MIN; i < MY_MAX; i+=INCR) + a_known_value++; + for (i = MY_MAX; i >= MY_MIN; i-=INCR) + b_known_value++; + } + + for(i = 0; i < REPETITIONS; i++) { + if(!test_kmp_set_disp_num_buffers()) { + num_failed++; + } + } + return num_failed; +} |