1d8e9fea7SSatish Balay 2d382aafbSBarry Smith #include "petscsys.h" 3b0878937SSatish Balay 44a2ae208SSatish Balay #undef __FUNCT__ 54a2ae208SSatish Balay #define __FUNCT__ "main" 6b0878937SSatish Balay int main(int argc,char **argv) 7b0878937SSatish Balay { 8b0a32e0cSBarry Smith PetscLogDouble x,y,z; 9ea709b57SSatish Balay PetscScalar A[10000]; 10d3093643SSatish Balay int ierr; 11b0878937SSatish Balay 1277c4ece6SBarry Smith PetscInitialize(&argc,&argv,0,0); 13b0878937SSatish Balay /* To take care of paging effects */ 1487828ca2SBarry Smith ierr = PetscMemzero(A,sizeof(PetscScalar)*0);CHKERRQ(ierr); 15ac355199SBarry Smith ierr = PetscGetTime(&x);CHKERRQ(ierr); 16b0878937SSatish Balay 17ac355199SBarry Smith ierr = PetscGetTime(&x);CHKERRQ(ierr); 1887828ca2SBarry Smith ierr = PetscMemzero(A,sizeof(PetscScalar)*10000);CHKERRQ(ierr); 1987828ca2SBarry Smith ierr = PetscMemzero(A,sizeof(PetscScalar)*10000);CHKERRQ(ierr); 2087828ca2SBarry Smith ierr = PetscMemzero(A,sizeof(PetscScalar)*10000);CHKERRQ(ierr); 2187828ca2SBarry Smith ierr = PetscMemzero(A,sizeof(PetscScalar)*10000);CHKERRQ(ierr); 2287828ca2SBarry Smith ierr = PetscMemzero(A,sizeof(PetscScalar)*10000);CHKERRQ(ierr); 2387828ca2SBarry Smith ierr = PetscMemzero(A,sizeof(PetscScalar)*10000);CHKERRQ(ierr); 2487828ca2SBarry Smith ierr = PetscMemzero(A,sizeof(PetscScalar)*10000);CHKERRQ(ierr); 2587828ca2SBarry Smith ierr = PetscMemzero(A,sizeof(PetscScalar)*10000);CHKERRQ(ierr); 2687828ca2SBarry Smith ierr = PetscMemzero(A,sizeof(PetscScalar)*10000);CHKERRQ(ierr); 279ae0b57aSSatish Balay ierr = PetscMemzero(A,sizeof(PetscScalar)*10000);CHKERRQ(ierr); 28ac355199SBarry Smith ierr = PetscGetTime(&y);CHKERRQ(ierr); 2987828ca2SBarry Smith ierr = PetscMemzero(A,sizeof(PetscScalar)*0);CHKERRQ(ierr); 3087828ca2SBarry Smith ierr = PetscMemzero(A,sizeof(PetscScalar)*0);CHKERRQ(ierr); 3187828ca2SBarry Smith ierr = PetscMemzero(A,sizeof(PetscScalar)*0);CHKERRQ(ierr); 3287828ca2SBarry Smith ierr = PetscMemzero(A,sizeof(PetscScalar)*0);CHKERRQ(ierr); 3387828ca2SBarry Smith ierr = PetscMemzero(A,sizeof(PetscScalar)*0);CHKERRQ(ierr); 3487828ca2SBarry Smith ierr = PetscMemzero(A,sizeof(PetscScalar)*0);CHKERRQ(ierr); 3587828ca2SBarry Smith ierr = PetscMemzero(A,sizeof(PetscScalar)*0);CHKERRQ(ierr); 3687828ca2SBarry Smith ierr = PetscMemzero(A,sizeof(PetscScalar)*0);CHKERRQ(ierr); 3787828ca2SBarry Smith ierr = PetscMemzero(A,sizeof(PetscScalar)*0);CHKERRQ(ierr); 3887828ca2SBarry Smith ierr = PetscMemzero(A,sizeof(PetscScalar)*0);CHKERRQ(ierr); 39ac355199SBarry Smith ierr = PetscGetTime(&z);CHKERRQ(ierr); 40b0878937SSatish Balay 4135d8aa7fSBarry Smith fprintf(stdout,"%s : \n","PetscMemzero"); 42b4d8b9abSSatish Balay fprintf(stdout," %-15s : %e sec\n","Latency",(z-y)/10.0); 43b4d8b9abSSatish Balay fprintf(stdout," %-15s : %e sec\n","Per PetscScalar",(2*y-x-z)/100000.0); 44b0878937SSatish Balay 45*f3fe499bSBarry Smith ierr = PetscFinalize(); 463a40ed3dSBarry Smith PetscFunctionReturn(0); 47b0878937SSatish Balay } 48