84 lines
2.5 KiB
C
84 lines
2.5 KiB
C
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// RUN: %libomp-compile -D_GNU_SOURCE
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// RUN: env OMP_PLACES=threads %libomp-run
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// RUN: env OMP_PLACES=cores %libomp-run
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// RUN: env OMP_PLACES=sockets %libomp-run
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// REQUIRES: linux
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "libomp_test_affinity.h"
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#include "libomp_test_topology.h"
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// Compare place lists. The order is not taken into consideration here.
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// The OS detection might have the cores/sockets in a different
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// order from the runtime.
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static int compare_places(const place_list_t *p1, const place_list_t *p2) {
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int i, j;
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if (p1->num_places != p2->num_places) {
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fprintf(stderr, "error: places do not have same number of places! (p1 has "
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"%d, p2 has %d)\n",
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p1->num_places, p2->num_places);
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printf("p1 places:\n");
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topology_print_places(p1);
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printf("\n");
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printf("p2 places:\n");
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topology_print_places(p2);
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return EXIT_FAILURE;
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}
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for (i = 0; i < p1->num_places; ++i) {
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int found = 0;
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for (j = 0; j < p2->num_places; ++j) {
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if (affinity_mask_equal(p1->masks[i], p2->masks[j])) {
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found = 1;
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break;
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}
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}
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if (!found) {
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printf("Found difference in places!\n");
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printf("p1 places:\n");
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topology_print_places(p1);
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printf("\n");
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printf("p2 places:\n");
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topology_print_places(p2);
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return EXIT_FAILURE;
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}
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}
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return EXIT_SUCCESS;
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}
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static int check_places() {
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int status;
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const char *value = getenv("OMP_PLACES");
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if (!value) {
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fprintf(stderr, "error: must set OMP_PLACES envirable for this test!\n");
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return EXIT_FAILURE;
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}
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place_list_t *places, *openmp_places;
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if (strcmp(value, "sockets") == 0) {
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places = topology_alloc_type_places(TOPOLOGY_OBJ_SOCKET);
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} else if (strcmp(value, "cores") == 0) {
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places = topology_alloc_type_places(TOPOLOGY_OBJ_CORE);
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} else if (strcmp(value, "threads") == 0) {
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places = topology_alloc_type_places(TOPOLOGY_OBJ_THREAD);
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} else {
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fprintf(stderr,
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"error: OMP_PLACES must be one of threads,cores,sockets!\n");
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return EXIT_FAILURE;
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}
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openmp_places = topology_alloc_openmp_places();
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status = compare_places(places, openmp_places);
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topology_free_places(places);
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topology_free_places(openmp_places);
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return status;
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}
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int main() {
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if (!topology_using_full_mask()) {
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printf("Thread does not have access to all logical processors. Skipping "
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"test.\n");
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return EXIT_SUCCESS;
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}
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return check_places();
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}
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