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