1 2 #include <petscsys.h> 3 #include <petsctime.h> 4 5 #undef __FUNCT__ 6 #define __FUNCT__ "main" 7 int main(int argc,char **argv) 8 { 9 PetscLogDouble x,y; 10 PetscInt i; 11 PetscErrorCode ierr; 12 13 ierr = PetscInitialize(&argc,&argv,0,0);if (ierr) return ierr; 14 /* To take care of paging effects */ 15 ierr = PetscTime(&y);CHKERRQ(ierr); 16 17 for (i=0; i<2; i++) { 18 ierr = PetscTime(&x);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 ierr = PetscTime(&y);CHKERRQ(ierr); 28 ierr = PetscTime(&y);CHKERRQ(ierr); 29 fprintf(stdout,"%-15s : %e sec\n","PetscTime",(y-x)/10.0); 30 } 31 32 ierr = PetscFinalize(); 33 return ierr; 34 } 35