1 #include <petscsys.h>
2 #include <petsctime.h>
3
main(int argc,char ** argv)4 int main(int argc, char **argv)
5 {
6 PetscLogDouble x, y;
7 int i;
8
9 PetscCall(PetscInitialize(&argc, &argv, 0, 0));
10 /* To take care of paging effects */
11 PetscTime(&y);
12
13 for (i = 0; i < 2; i++) {
14 PetscTime(&x);
15 PetscTime(&y);
16 PetscTime(&y);
17 PetscTime(&y);
18 PetscTime(&y);
19 PetscTime(&y);
20 PetscTime(&y);
21 PetscTime(&y);
22 PetscTime(&y);
23 PetscTime(&y);
24 PetscTime(&y);
25 fprintf(stdout, "%-15s : %e sec\n", "PetscTime", (y - x) / 10.0);
26 }
27 PetscTime(&x);
28 PetscCall(PetscSleep(10));
29 PetscTime(&y);
30 fprintf(stdout, "%-15s : %e sec - Slept for 10 sec \n", "PetscTime", (y - x));
31 PetscCall(PetscFinalize());
32 return 0;
33 }
34