1 #include <petscsys.h> 2 #include <petsctime.h> 3 4 int main(int argc, char **argv) 5 { 6 PetscLogDouble x, y; 7 PetscLogEvent e1; 8 PetscBool flg; 9 10 PetscCall(PetscInitialize(&argc, &argv, 0, 0)); 11 PetscLogEventRegister("*DummyEvent", 0, &e1); 12 /* To take care of the paging effects */ 13 PetscCall(PetscTime(&x)); 14 PetscCall(PetscLogEventBegin(e1, &x, 0, 0, 0)); 15 PetscCall(PetscLogEventEnd(e1, &x, 0, 0, 0)); 16 17 PetscCall(PetscTime(&x)); 18 /* 10 Occurrences of the dummy event */ 19 PetscCall(PetscLogEventBegin(e1, &x, 0, 0, 0)); 20 PetscCall(PetscLogEventEnd(e1, &x, 0, 0, 0)); 21 PetscCall(PetscLogEventBegin(e1, &x, &y, 0, 0)); 22 PetscCall(PetscLogEventEnd(e1, &x, &y, 0, 0)); 23 PetscCall(PetscLogEventBegin(e1, &y, 0, 0, 0)); 24 PetscCall(PetscLogEventEnd(e1, &y, 0, 0, 0)); 25 PetscCall(PetscLogEventBegin(e1, &x, 0, 0, 0)); 26 PetscCall(PetscLogEventEnd(e1, &x, 0, 0, 0)); 27 PetscCall(PetscLogEventBegin(e1, &x, &y, 0, 0)); 28 PetscCall(PetscLogEventEnd(e1, &x, &y, 0, 0)); 29 PetscCall(PetscLogEventBegin(e1, &y, 0, 0, 0)); 30 PetscCall(PetscLogEventEnd(e1, &y, 0, 0, 0)); 31 PetscCall(PetscLogEventBegin(e1, &x, 0, 0, 0)); 32 PetscCall(PetscLogEventEnd(e1, &x, 0, 0, 0)); 33 PetscCall(PetscLogEventBegin(e1, &x, &y, 0, 0)); 34 PetscCall(PetscLogEventEnd(e1, &x, &y, 0, 0)); 35 PetscCall(PetscLogEventBegin(e1, &y, 0, 0, 0)); 36 PetscCall(PetscLogEventEnd(e1, &y, 0, 0, 0)); 37 PetscCall(PetscLogEventBegin(e1, &x, &e1, 0, 0)); 38 PetscCall(PetscLogEventEnd(e1, &x, &e1, 0, 0)); 39 40 PetscCall(PetscTime(&y)); 41 fprintf(stderr, "%-15s : %e sec, with options : ", "PetscLogEvent", (y - x) / 10.0); 42 43 PetscCall(PetscOptionsHasName(NULL, "-log", &flg)); 44 if (flg) fprintf(stderr, "-log "); 45 PetscCall(PetscOptionsHasName(NULL, "-log_all", &flg)); 46 if (flg) fprintf(stderr, "-log_all "); 47 PetscCall(PetscOptionsHasName(NULL, "-log_view", &flg)); 48 if (flg) fprintf(stderr, "-log_view "); 49 PetscCall(PetscOptionsHasName(NULL, "-log_mpe", &flg)); 50 if (flg) fprintf(stderr, "-log_mpe "); 51 52 fprintf(stderr, "\n"); 53 54 PetscCall(PetscFinalize()); 55 return 0; 56 } 57