1 // RUN: %libomp-compile -D_GNU_SOURCE
2 // RUN: env OMP_PLACES=threads %libomp-run
3 // RUN: env OMP_PLACES=cores %libomp-run
4 // RUN: env OMP_PLACES=sockets %libomp-run
5 // REQUIRES: linux
6
7 #include <stdio.h>
8 #include <stdlib.h>
9 #include <string.h>
10 #include "libomp_test_affinity.h"
11 #include "libomp_test_topology.h"
12
13 // Compare place lists. The order is not taken into consideration here.
14 // The OS detection might have the cores/sockets in a different
15 // order from the runtime.
compare_places(const place_list_t * p1,const place_list_t * p2)16 static int compare_places(const place_list_t *p1, const place_list_t *p2) {
17 int i, j;
18 if (p1->num_places != p2->num_places) {
19 fprintf(stderr, "error: places do not have same number of places! (p1 has "
20 "%d, p2 has %d)\n",
21 p1->num_places, p2->num_places);
22 printf("p1 places:\n");
23 topology_print_places(p1);
24 printf("\n");
25 printf("p2 places:\n");
26 topology_print_places(p2);
27 return EXIT_FAILURE;
28 }
29 for (i = 0; i < p1->num_places; ++i) {
30 int found = 0;
31 for (j = 0; j < p2->num_places; ++j) {
32 if (affinity_mask_equal(p1->masks[i], p2->masks[j])) {
33 found = 1;
34 break;
35 }
36 }
37 if (!found) {
38 printf("Found difference in places!\n");
39 printf("p1 places:\n");
40 topology_print_places(p1);
41 printf("\n");
42 printf("p2 places:\n");
43 topology_print_places(p2);
44 return EXIT_FAILURE;
45 }
46 }
47 return EXIT_SUCCESS;
48 }
49
check_places()50 static int check_places() {
51 int status;
52 const char *value = getenv("OMP_PLACES");
53 if (!value) {
54 fprintf(stderr, "error: must set OMP_PLACES envirable for this test!\n");
55 return EXIT_FAILURE;
56 }
57 place_list_t *places, *openmp_places;
58 if (strcmp(value, "sockets") == 0) {
59 places = topology_alloc_type_places(TOPOLOGY_OBJ_SOCKET);
60 } else if (strcmp(value, "cores") == 0) {
61 places = topology_alloc_type_places(TOPOLOGY_OBJ_CORE);
62 } else if (strcmp(value, "threads") == 0) {
63 places = topology_alloc_type_places(TOPOLOGY_OBJ_THREAD);
64 } else {
65 fprintf(stderr,
66 "error: OMP_PLACES must be one of threads,cores,sockets!\n");
67 return EXIT_FAILURE;
68 }
69 openmp_places = topology_alloc_openmp_places();
70 status = compare_places(places, openmp_places);
71 topology_free_places(places);
72 topology_free_places(openmp_places);
73 return status;
74 }
75
main()76 int main() {
77 if (!topology_using_full_mask()) {
78 printf("Thread does not have access to all logical processors. Skipping "
79 "test.\n");
80 return EXIT_SUCCESS;
81 }
82 return check_places();
83 }
84