1 2 #include <petscsys.h> 3 #include <petsctime.h> 4 5 int main(int argc,char **argv) 6 { 7 PetscLogDouble x,y; 8 int i; 9 10 PetscCall(PetscInitialize(&argc,&argv,0,0)); 11 /* To take care of paging effects */ 12 PetscTime(&y); 13 14 for (i=0; i<2; i++) { 15 PetscTime(&x); 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 PetscTime(&y); 26 fprintf(stdout,"%-15s : %e sec\n","PetscTime",(y-x)/10.0); 27 } 28 PetscTime(&x); 29 PetscCall(PetscSleep(10)); 30 PetscTime(&y); 31 fprintf(stdout,"%-15s : %e sec - Slept for 10 sec \n","PetscTime",(y-x)); 32 PetscCall(PetscFinalize()); 33 return 0; 34 } 35