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