1d8e9fea7SSatish Balay 2c6db04a5SJed Brown #include <petscsys.h> 38563dfccSBarry Smith #include <petsctime.h> 4b0878937SSatish Balay 5b0878937SSatish Balay int main(int argc,char **argv) 6b0878937SSatish Balay { 7b0a32e0cSBarry Smith PetscLogDouble x,y,z; 8ea709b57SSatish Balay PetscScalar A[10000]; 9b0878937SSatish Balay 10*b122ec5aSJacob Faibussowitsch CHKERRQ(PetscInitialize(&argc,&argv,0,0)); 11b0878937SSatish Balay /* To take care of paging effects */ 125f80ce2aSJacob Faibussowitsch CHKERRQ(PetscMemzero(A,sizeof(PetscScalar)*0)); 135f80ce2aSJacob Faibussowitsch CHKERRQ(PetscTime(&x)); 14b0878937SSatish Balay 155f80ce2aSJacob Faibussowitsch CHKERRQ(PetscTime(&x)); 165f80ce2aSJacob Faibussowitsch CHKERRQ(PetscMemzero(A,sizeof(PetscScalar)*10000)); 175f80ce2aSJacob Faibussowitsch CHKERRQ(PetscMemzero(A,sizeof(PetscScalar)*10000)); 185f80ce2aSJacob Faibussowitsch CHKERRQ(PetscMemzero(A,sizeof(PetscScalar)*10000)); 195f80ce2aSJacob Faibussowitsch CHKERRQ(PetscMemzero(A,sizeof(PetscScalar)*10000)); 205f80ce2aSJacob Faibussowitsch CHKERRQ(PetscMemzero(A,sizeof(PetscScalar)*10000)); 215f80ce2aSJacob Faibussowitsch CHKERRQ(PetscMemzero(A,sizeof(PetscScalar)*10000)); 225f80ce2aSJacob Faibussowitsch CHKERRQ(PetscMemzero(A,sizeof(PetscScalar)*10000)); 235f80ce2aSJacob Faibussowitsch CHKERRQ(PetscMemzero(A,sizeof(PetscScalar)*10000)); 245f80ce2aSJacob Faibussowitsch CHKERRQ(PetscMemzero(A,sizeof(PetscScalar)*10000)); 255f80ce2aSJacob Faibussowitsch CHKERRQ(PetscMemzero(A,sizeof(PetscScalar)*10000)); 265f80ce2aSJacob Faibussowitsch CHKERRQ(PetscTime(&y)); 275f80ce2aSJacob Faibussowitsch CHKERRQ(PetscMemzero(A,sizeof(PetscScalar)*0)); 285f80ce2aSJacob Faibussowitsch CHKERRQ(PetscMemzero(A,sizeof(PetscScalar)*0)); 295f80ce2aSJacob Faibussowitsch CHKERRQ(PetscMemzero(A,sizeof(PetscScalar)*0)); 305f80ce2aSJacob Faibussowitsch CHKERRQ(PetscMemzero(A,sizeof(PetscScalar)*0)); 315f80ce2aSJacob Faibussowitsch CHKERRQ(PetscMemzero(A,sizeof(PetscScalar)*0)); 325f80ce2aSJacob Faibussowitsch CHKERRQ(PetscMemzero(A,sizeof(PetscScalar)*0)); 335f80ce2aSJacob Faibussowitsch CHKERRQ(PetscMemzero(A,sizeof(PetscScalar)*0)); 345f80ce2aSJacob Faibussowitsch CHKERRQ(PetscMemzero(A,sizeof(PetscScalar)*0)); 355f80ce2aSJacob Faibussowitsch CHKERRQ(PetscMemzero(A,sizeof(PetscScalar)*0)); 365f80ce2aSJacob Faibussowitsch CHKERRQ(PetscMemzero(A,sizeof(PetscScalar)*0)); 375f80ce2aSJacob Faibussowitsch CHKERRQ(PetscTime(&z)); 38b0878937SSatish Balay 3935d8aa7fSBarry Smith fprintf(stdout,"%s : \n","PetscMemzero"); 40b4d8b9abSSatish Balay fprintf(stdout," %-15s : %e sec\n","Latency",(z-y)/10.0); 41b4d8b9abSSatish Balay fprintf(stdout," %-15s : %e sec\n","Per PetscScalar",(2*y-x-z)/100000.0); 42b0878937SSatish Balay 43*b122ec5aSJacob Faibussowitsch CHKERRQ(PetscFinalize()); 44*b122ec5aSJacob Faibussowitsch return 0; 45b0878937SSatish Balay } 46