xref: /petsc/src/sys/tests/ex43.c (revision b122ec5aa1bd4469eb4e0673542fb7de3f411254)
1c4762a1bSJed Brown static char help[] = "Test scalability of PetscHSetIJ hash set.\n\n";
2c4762a1bSJed Brown 
3c4762a1bSJed Brown #include <petscsys.h>
4c4762a1bSJed Brown #include <petsctime.h>
5c4762a1bSJed Brown #include <petsc/private/hashsetij.h>
6c4762a1bSJed Brown 
7c4762a1bSJed Brown int main(int argc, char **argv)
8c4762a1bSJed Brown {
9c4762a1bSJed Brown   PetscHSetIJ    table;
10c4762a1bSJed Brown   PetscInt       N = 0, i, j, n;
11c4762a1bSJed Brown   PetscHashIJKey key;
12c4762a1bSJed Brown   PetscBool      flag;
13c4762a1bSJed Brown   PetscLogDouble t_add = 0;
14c4762a1bSJed Brown   PetscLogDouble t_has = 0;
15c4762a1bSJed Brown   PetscLogDouble t_del = 0;
16c4762a1bSJed Brown 
17*b122ec5aSJacob Faibussowitsch   CHKERRQ(PetscInitialize(&argc,&argv,NULL,help));
185f80ce2aSJacob Faibussowitsch   CHKERRQ(PetscOptionsGetInt(NULL,NULL,"-N",&N,NULL));
195f80ce2aSJacob Faibussowitsch   CHKERRQ(PetscHSetIJCreate(&table));
20c4762a1bSJed Brown 
21c4762a1bSJed Brown   /* The following line silences warnings from Clang Static Analyzer */
225f80ce2aSJacob Faibussowitsch   CHKERRQ(PetscHSetIJResize(table,0));
23c4762a1bSJed Brown 
245f80ce2aSJacob Faibussowitsch   CHKERRQ(PetscTimeSubtract(&t_add));
25c4762a1bSJed Brown   for (i = 0; i < N; ++i) {
26c4762a1bSJed Brown     for (j = 0; j < N; ++j) {
27c4762a1bSJed Brown       key.i = PetscMin(i, j);
28c4762a1bSJed Brown       key.j = PetscMax(i, j);
295f80ce2aSJacob Faibussowitsch       CHKERRQ(PetscHSetIJQueryAdd(table, key, &flag));
30c4762a1bSJed Brown     }
31c4762a1bSJed Brown   }
325f80ce2aSJacob Faibussowitsch   CHKERRQ(PetscTimeAdd(&t_add));
33c4762a1bSJed Brown 
345f80ce2aSJacob Faibussowitsch   CHKERRQ(PetscHSetIJGetSize(table,&n));
35c4762a1bSJed Brown 
365f80ce2aSJacob Faibussowitsch   CHKERRQ(PetscTimeSubtract(&t_has));
37c4762a1bSJed Brown   for (i = 0; i < N; ++i) {
38c4762a1bSJed Brown     for (j = 0; j < N; ++j) {
39c4762a1bSJed Brown       key.i = i;
40c4762a1bSJed Brown       key.j = j;
415f80ce2aSJacob Faibussowitsch       CHKERRQ(PetscHSetIJHas(table, key, &flag));
42c4762a1bSJed Brown     }
43c4762a1bSJed Brown   }
445f80ce2aSJacob Faibussowitsch   CHKERRQ(PetscTimeAdd(&t_has));
45c4762a1bSJed Brown 
465f80ce2aSJacob Faibussowitsch   CHKERRQ(PetscTimeSubtract(&t_del));
47c4762a1bSJed Brown   for (i = 0; i < N; ++i) {
48c4762a1bSJed Brown     for (j = 0; j < N; ++j) {
49c4762a1bSJed Brown       key.i = i;
50c4762a1bSJed Brown       key.j = j;
515f80ce2aSJacob Faibussowitsch       CHKERRQ(PetscHSetIJQueryDel(table, key, &flag));
52c4762a1bSJed Brown     }
53c4762a1bSJed Brown   }
545f80ce2aSJacob Faibussowitsch   CHKERRQ(PetscTimeAdd(&t_del));
55c4762a1bSJed Brown 
565f80ce2aSJacob Faibussowitsch   CHKERRQ(PetscPrintf(PETSC_COMM_WORLD,"N = %" PetscInt_FMT " - table size: %" PetscInt_FMT ", add: %g, has: %g, del: %g\n",N,n,t_add,t_has,t_del));
57c4762a1bSJed Brown 
585f80ce2aSJacob Faibussowitsch   CHKERRQ(PetscHSetIJDestroy(&table));
59*b122ec5aSJacob Faibussowitsch   CHKERRQ(PetscFinalize());
60*b122ec5aSJacob Faibussowitsch   return 0;
61c4762a1bSJed Brown }
62c4762a1bSJed Brown 
63c4762a1bSJed Brown /*TEST
64c4762a1bSJed Brown 
65c4762a1bSJed Brown    test:
66c4762a1bSJed Brown      args: -N 32
67c4762a1bSJed Brown 
68c4762a1bSJed Brown TEST*/
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