xref: /petsc/src/benchmarks/PetscTime.c (revision 9895aa37ac365bac650f6bd8bf977519f7222510)
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   int            i,ierr;
11 
12   PetscInitialize(&argc,&argv,0,0);
13   /* To take care of paging effects */
14   PetscTime(y);
15 
16   for (i=0; i<2; i++) {
17     PetscTime(x);
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     PetscTime(y);
27     PetscTime(y);
28 
29     fprintf(stdout,"%-15s : %e sec\n","PetscTime",(y-x)/10.0);
30   }
31   PetscTime(x);
32   ierr = PetscSleep(10);CHKERRQ(ierr);
33   PetscTime(y);
34   fprintf(stdout,"%-15s : %e sec - Slept for 10 sec \n","PetscTime",(y-x));
35 
36   ierr = PetscFinalize();
37   PetscFunctionReturn(0);
38 }
39