xref: /petsc/src/sys/tests/ex43.c (revision c4762a1b19cd2af06abeed90e8f9d34fb975dd94)
1*c4762a1bSJed Brown static char help[] = "Test scalability of PetscHSetIJ hash set.\n\n";
2*c4762a1bSJed Brown 
3*c4762a1bSJed Brown #include <petscsys.h>
4*c4762a1bSJed Brown #include <petsctime.h>
5*c4762a1bSJed Brown #include <petsc/private/hashsetij.h>
6*c4762a1bSJed Brown 
7*c4762a1bSJed Brown int main(int argc, char **argv)
8*c4762a1bSJed Brown {
9*c4762a1bSJed Brown   PetscHSetIJ    table;
10*c4762a1bSJed Brown   PetscInt       N = 0, i, j, n;
11*c4762a1bSJed Brown   PetscHashIJKey key;
12*c4762a1bSJed Brown   PetscBool      flag;
13*c4762a1bSJed Brown   PetscLogDouble t_add = 0;
14*c4762a1bSJed Brown   PetscLogDouble t_has = 0;
15*c4762a1bSJed Brown   PetscLogDouble t_del = 0;
16*c4762a1bSJed Brown   PetscErrorCode ierr;
17*c4762a1bSJed Brown 
18*c4762a1bSJed Brown   ierr = PetscInitialize(&argc,&argv,NULL,help);if (ierr) return ierr;
19*c4762a1bSJed Brown   ierr = PetscOptionsGetInt(NULL,NULL,"-N",&N,NULL);CHKERRQ(ierr);
20*c4762a1bSJed Brown   ierr = PetscHSetIJCreate(&table);CHKERRQ(ierr);
21*c4762a1bSJed Brown 
22*c4762a1bSJed Brown   /* The following line silences warnings from Clang Static Analyzer */
23*c4762a1bSJed Brown   ierr = PetscHSetIJResize(table,0);CHKERRQ(ierr);
24*c4762a1bSJed Brown 
25*c4762a1bSJed Brown   ierr = PetscTimeSubtract(&t_add);CHKERRQ(ierr);
26*c4762a1bSJed Brown   for (i = 0; i < N; ++i) {
27*c4762a1bSJed Brown     for (j = 0; j < N; ++j) {
28*c4762a1bSJed Brown       key.i = PetscMin(i, j);
29*c4762a1bSJed Brown       key.j = PetscMax(i, j);
30*c4762a1bSJed Brown       ierr  = PetscHSetIJQueryAdd(table, key, &flag);CHKERRQ(ierr);
31*c4762a1bSJed Brown     }
32*c4762a1bSJed Brown   }
33*c4762a1bSJed Brown   ierr = PetscTimeAdd(&t_add);CHKERRQ(ierr);
34*c4762a1bSJed Brown 
35*c4762a1bSJed Brown   ierr = PetscHSetIJGetSize(table,&n);CHKERRQ(ierr);
36*c4762a1bSJed Brown 
37*c4762a1bSJed Brown   ierr = PetscTimeSubtract(&t_has);CHKERRQ(ierr);
38*c4762a1bSJed Brown   for (i = 0; i < N; ++i) {
39*c4762a1bSJed Brown     for (j = 0; j < N; ++j) {
40*c4762a1bSJed Brown       key.i = i;
41*c4762a1bSJed Brown       key.j = j;
42*c4762a1bSJed Brown       ierr  = PetscHSetIJHas(table, key, &flag);CHKERRQ(ierr);
43*c4762a1bSJed Brown     }
44*c4762a1bSJed Brown   }
45*c4762a1bSJed Brown   ierr = PetscTimeAdd(&t_has);CHKERRQ(ierr);
46*c4762a1bSJed Brown 
47*c4762a1bSJed Brown   ierr = PetscTimeSubtract(&t_del);CHKERRQ(ierr);
48*c4762a1bSJed Brown   for (i = 0; i < N; ++i) {
49*c4762a1bSJed Brown     for (j = 0; j < N; ++j) {
50*c4762a1bSJed Brown       key.i = i;
51*c4762a1bSJed Brown       key.j = j;
52*c4762a1bSJed Brown       ierr  = PetscHSetIJQueryDel(table, key, &flag);CHKERRQ(ierr);
53*c4762a1bSJed Brown     }
54*c4762a1bSJed Brown   }
55*c4762a1bSJed Brown   ierr = PetscTimeAdd(&t_del);CHKERRQ(ierr);
56*c4762a1bSJed Brown 
57*c4762a1bSJed Brown   ierr = PetscPrintf(PETSC_COMM_WORLD,"N = %D - table size: %D, add: %g, has: %g, del: %g\n",N,n,t_add,t_has,t_del);CHKERRQ(ierr);
58*c4762a1bSJed Brown 
59*c4762a1bSJed Brown   ierr = PetscHSetIJDestroy(&table);CHKERRQ(ierr);
60*c4762a1bSJed Brown   ierr = PetscFinalize();
61*c4762a1bSJed Brown   return ierr;
62*c4762a1bSJed Brown }
63*c4762a1bSJed Brown 
64*c4762a1bSJed Brown /*TEST
65*c4762a1bSJed Brown 
66*c4762a1bSJed Brown    test:
67*c4762a1bSJed Brown      args: -N 32
68*c4762a1bSJed Brown 
69*c4762a1bSJed Brown TEST*/
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