1 2 #include <petscsys.h> 3 #include <petsctime.h> 4 5 int main(int argc,char **argv) 6 { 7 PetscLogDouble x,y; 8 PetscLogEvent e1; 9 PetscErrorCode ierr; 10 PetscBool flg; 11 12 ierr = PetscInitialize(&argc,&argv,0,0);if (ierr) return ierr; 13 PetscLogEventRegister("*DummyEvent",0,&e1); 14 /* To take care of the paging effects */ 15 CHKERRQ(PetscTime(&x)); 16 CHKERRQ(PetscLogEventBegin(e1,&x,0,0,0)); 17 CHKERRQ(PetscLogEventEnd(e1,&x,0,0,0)); 18 19 CHKERRQ(PetscTime(&x)); 20 /* 10 Occurrences of the dummy event */ 21 CHKERRQ(PetscLogEventBegin(e1,&x,0,0,0)); 22 CHKERRQ(PetscLogEventEnd(e1,&x,0,0,0)); 23 CHKERRQ(PetscLogEventBegin(e1,&x,&y,0,0)); 24 CHKERRQ(PetscLogEventEnd(e1,&x,&y,0,0)); 25 CHKERRQ(PetscLogEventBegin(e1,&y,0,0,0)); 26 CHKERRQ(PetscLogEventEnd(e1,&y,0,0,0)); 27 CHKERRQ(PetscLogEventBegin(e1,&x,0,0,0)); 28 CHKERRQ(PetscLogEventEnd(e1,&x,0,0,0)); 29 CHKERRQ(PetscLogEventBegin(e1,&x,&y,0,0)); 30 CHKERRQ(PetscLogEventEnd(e1,&x,&y,0,0)); 31 CHKERRQ(PetscLogEventBegin(e1,&y,0,0,0)); 32 CHKERRQ(PetscLogEventEnd(e1,&y,0,0,0)); 33 CHKERRQ(PetscLogEventBegin(e1,&x,0,0,0)); 34 CHKERRQ(PetscLogEventEnd(e1,&x,0,0,0)); 35 CHKERRQ(PetscLogEventBegin(e1,&x,&y,0,0)); 36 CHKERRQ(PetscLogEventEnd(e1,&x,&y,0,0)); 37 CHKERRQ(PetscLogEventBegin(e1,&y,0,0,0)); 38 CHKERRQ(PetscLogEventEnd(e1,&y,0,0,0)); 39 CHKERRQ(PetscLogEventBegin(e1,&x,&e1,0,0)); 40 CHKERRQ(PetscLogEventEnd(e1,&x,&e1,0,0)); 41 42 CHKERRQ(PetscTime(&y)); 43 fprintf(stderr,"%-15s : %e sec, with options : ","PetscLogEvent",(y-x)/10.0); 44 45 CHKERRQ(PetscOptionsHasName(NULL,"-log",&flg)); 46 if (flg) fprintf(stderr,"-log "); 47 CHKERRQ(PetscOptionsHasName(NULL,"-log_all",&flg)); 48 if (flg) fprintf(stderr,"-log_all "); 49 CHKERRQ(PetscOptionsHasName(NULL,"-log_view",&flg)); 50 if (flg) fprintf(stderr,"-log_view "); 51 CHKERRQ(PetscOptionsHasName(NULL,"-log_mpe",&flg)); 52 if (flg) fprintf(stderr,"-log_mpe "); 53 54 fprintf(stderr,"\n"); 55 56 ierr = PetscFinalize(); 57 return ierr; 58 } 59