Actual source code: PLogEvent.c
2: #include <petscsys.h>
3: #include <petsctime.h>
5: int main(int argc,char **argv)
6: {
7: PetscLogDouble x,y;
8: PetscLogEvent e1;
9: PetscBool flg;
11: PetscCall(PetscInitialize(&argc,&argv,0,0));
12: PetscLogEventRegister("*DummyEvent",0,&e1);
13: /* To take care of the paging effects */
14: PetscCall(PetscTime(&x));
15: PetscCall(PetscLogEventBegin(e1,&x,0,0,0));
16: PetscCall(PetscLogEventEnd(e1,&x,0,0,0));
18: PetscCall(PetscTime(&x));
19: /* 10 Occurrences of the dummy event */
20: PetscCall(PetscLogEventBegin(e1,&x,0,0,0));
21: PetscCall(PetscLogEventEnd(e1,&x,0,0,0));
22: PetscCall(PetscLogEventBegin(e1,&x,&y,0,0));
23: PetscCall(PetscLogEventEnd(e1,&x,&y,0,0));
24: PetscCall(PetscLogEventBegin(e1,&y,0,0,0));
25: PetscCall(PetscLogEventEnd(e1,&y,0,0,0));
26: PetscCall(PetscLogEventBegin(e1,&x,0,0,0));
27: PetscCall(PetscLogEventEnd(e1,&x,0,0,0));
28: PetscCall(PetscLogEventBegin(e1,&x,&y,0,0));
29: PetscCall(PetscLogEventEnd(e1,&x,&y,0,0));
30: PetscCall(PetscLogEventBegin(e1,&y,0,0,0));
31: PetscCall(PetscLogEventEnd(e1,&y,0,0,0));
32: PetscCall(PetscLogEventBegin(e1,&x,0,0,0));
33: PetscCall(PetscLogEventEnd(e1,&x,0,0,0));
34: PetscCall(PetscLogEventBegin(e1,&x,&y,0,0));
35: PetscCall(PetscLogEventEnd(e1,&x,&y,0,0));
36: PetscCall(PetscLogEventBegin(e1,&y,0,0,0));
37: PetscCall(PetscLogEventEnd(e1,&y,0,0,0));
38: PetscCall(PetscLogEventBegin(e1,&x,&e1,0,0));
39: PetscCall(PetscLogEventEnd(e1,&x,&e1,0,0));
41: PetscCall(PetscTime(&y));
42: fprintf(stderr,"%-15s : %e sec, with options : ","PetscLogEvent",(y-x)/10.0);
44: PetscCall(PetscOptionsHasName(NULL,"-log",&flg));
45: if (flg) fprintf(stderr,"-log ");
46: PetscCall(PetscOptionsHasName(NULL,"-log_all",&flg));
47: if (flg) fprintf(stderr,"-log_all ");
48: PetscCall(PetscOptionsHasName(NULL,"-log_view",&flg));
49: if (flg) fprintf(stderr,"-log_view ");
50: PetscCall(PetscOptionsHasName(NULL,"-log_mpe",&flg));
51: if (flg) fprintf(stderr,"-log_mpe ");
53: fprintf(stderr,"\n");
55: PetscCall(PetscFinalize());
56: return 0;
57: }