1a5eb4965SSatish Balay #ifdef PETSC_RCS_HEADER 2*3a40ed3dSBarry Smith static char vcid[] = "$Id: PetscMemcpy.c,v 1.8 1997/07/09 21:01:29 balay Exp bsmith $"; 3d8e9fea7SSatish Balay #endif 4d8e9fea7SSatish Balay 5b0878937SSatish Balay #include "petsc.h" 6b0878937SSatish Balay 7b0878937SSatish Balay int main( int argc, char **argv) 8b0878937SSatish Balay { 947794344SBarry Smith PLogDouble x, y, z; 107fb9f68cSSatish Balay int i; 117fb9f68cSSatish Balay Scalar A[10000], B[10000]; 12b0878937SSatish Balay 1377c4ece6SBarry Smith PetscInitialize(&argc, &argv,0,0); 14b0878937SSatish Balay for (i=0; i<10000; i++) { 15b0878937SSatish Balay A[i] = i%61897; 16b0878937SSatish Balay B[i] = i%61897; 17b0878937SSatish Balay } 18b0878937SSatish Balay /* To take care of paging effects */ 197fb9f68cSSatish Balay PetscMemcpy(A,B,sizeof(Scalar)*0); 20b0878937SSatish Balay x = PetscGetTime(); 21b0878937SSatish Balay 22b0878937SSatish Balay x = PetscGetTime(); 237fb9f68cSSatish Balay PetscMemcpy(A,B,sizeof(Scalar)*10000); 247fb9f68cSSatish Balay PetscMemcpy(A,B,sizeof(Scalar)*10000); 257fb9f68cSSatish Balay PetscMemcpy(A,B,sizeof(Scalar)*10000); 267fb9f68cSSatish Balay PetscMemcpy(A,B,sizeof(Scalar)*10000); 277fb9f68cSSatish Balay PetscMemcpy(A,B,sizeof(Scalar)*10000); 287fb9f68cSSatish Balay PetscMemcpy(A,B,sizeof(Scalar)*10000); 297fb9f68cSSatish Balay PetscMemcpy(A,B,sizeof(Scalar)*10000); 307fb9f68cSSatish Balay PetscMemcpy(A,B,sizeof(Scalar)*10000); 317fb9f68cSSatish Balay PetscMemcpy(A,B,sizeof(Scalar)*10000); 327fb9f68cSSatish Balay PetscMemcpy(A,B,sizeof(Scalar)*10000); 33b0878937SSatish Balay y = PetscGetTime(); 347fb9f68cSSatish Balay PetscMemcpy(A,B,sizeof(Scalar)*0); 357fb9f68cSSatish Balay PetscMemcpy(A,B,sizeof(Scalar)*0); 367fb9f68cSSatish Balay PetscMemcpy(A,B,sizeof(Scalar)*0); 377fb9f68cSSatish Balay PetscMemcpy(A,B,sizeof(Scalar)*0); 387fb9f68cSSatish Balay PetscMemcpy(A,B,sizeof(Scalar)*0); 397fb9f68cSSatish Balay PetscMemcpy(A,B,sizeof(Scalar)*0); 407fb9f68cSSatish Balay PetscMemcpy(A,B,sizeof(Scalar)*0); 417fb9f68cSSatish Balay PetscMemcpy(A,B,sizeof(Scalar)*0); 427fb9f68cSSatish Balay PetscMemcpy(A,B,sizeof(Scalar)*0); 437fb9f68cSSatish Balay PetscMemcpy(A,B,sizeof(Scalar)*0); 44b0878937SSatish Balay z = PetscGetTime(); 45b0878937SSatish Balay 46b0878937SSatish Balay fprintf(stderr,"%s : \n","PetscMemcpy"); 47b0878937SSatish Balay fprintf(stderr," %-11s : %e sec\n","Latency",(z-y)/10.0); 487fb9f68cSSatish Balay fprintf(stderr," %-11s : %e sec\n","Per Scalar",(2*y-x-z)/100000.0); 49b0878937SSatish Balay 50b0878937SSatish Balay PetscFinalize(); 51*3a40ed3dSBarry Smith PetscFunctionReturn(0); 52b0878937SSatish Balay } 53