root / BLAS / xGEMM / xGEMM.c @ 1
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/*
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Performs matrix multiply
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Thanks for help from aurel32@debian.org
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*/
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#include <stdio.h> |
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#include <math.h> |
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#include <stdlib.h> |
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#include <sys/time.h> |
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#include <string.h> |
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#ifdef CUBLAS
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#include <cublas.h> |
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#define CUBLAS_WRAPPER_ERROR_NOERR 0 |
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#define CUBLAS_WRAPPER_ERROR_ALLOC 1 |
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#define CUBLAS_WRAPPER_ERROR_SET 2 |
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#define CUBLAS_WRAPPER_ERROR_GET 3 |
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#define CUBLAS_WRAPPER_ERROR_STUB 4 |
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#elif THUNKING
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#include <cublas.h> |
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#elif FBLAS
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#include <cblas_f77.h> |
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#elif GSL
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#include <gsl_cblas.h> |
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#elif ACML
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#include <acml.h> |
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#include <acml_mv.h> |
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#else
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#include <cblas.h> |
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#endif
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#ifdef DOUBLE
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#define LENGTH double |
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#else
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#define LENGTH float |
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#endif
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#ifdef THUNKING
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#include "fortran_thunking.h" |
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#elif FBLAS
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#ifdef DOUBLE
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void dgemm_(FCHAR, FCHAR, FINT, FINT, FINT, const double *, const double *, FINT, |
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const double *, FINT, const double *, double *, FINT); |
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#else
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void sgemm_(FCHAR, FCHAR, FINT, FINT, FINT, const float *, const float *, FINT, |
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const float *, FINT, const float *, float *, FINT); |
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#endif
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#endif
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/* Matrix with only defined triangular terms */
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/* Even if there are 0 in matrix, must be defined at all ! */
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/* Get from fortran.c */
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#ifdef CUBLAS
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static char *errMsg[5] = |
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{
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"no error",
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"allocation error",
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"setVector/setMatrix error",
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"getVector/getMatrix error",
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"not implemented"
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}; |
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static void wrapperError (const char *funcName, int error) |
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{
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printf ("cublas%s wrapper: %s\n", funcName, errMsg[error]);
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fflush (stdout); |
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} |
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#endif
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int printVector(const int dimVector,const LENGTH *dataVector, |
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char *nameVector,char *mesgVector) |
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{
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#ifndef QUIET
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int i;
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printf("\n%s of %s, size %i:\n",mesgVector,nameVector,dimVector);
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for (i=0;i<dimVector;i++) |
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{
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printf("%s[%i]=%2.10e\n",nameVector,i,dataVector[i]);
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} |
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#endif
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return 0; |
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} |
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int printResults(const int dimVector,const LENGTH *dataVector, |
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char *nameVector,char *mesgVector) |
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{
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#ifdef RESULTS
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int i;
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printf("\n%s of %s, size %i:\n",mesgVector,nameVector,dimVector);
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for (i=0;i<dimVector;i++) |
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{
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printf("%s[%i]=%2.10e\n",nameVector,i,dataVector[i]);
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} |
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#endif
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return 0; |
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} |
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#ifdef CUBLAS
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int printVectorGPU(const int dimVector,const LENGTH *dataVector, |
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char *nameVector,char *mesgVector) |
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{
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#ifndef QUIET
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int i;
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cublasStatus stat; |
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LENGTH *P=0;
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int incx=1; |
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P=malloc(dimVector*sizeof(LENGTH));
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stat=cublasGetVector(dimVector,sizeof(P[0]),dataVector,incx,P,incx); |
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if (stat != CUBLAS_STATUS_SUCCESS) {
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wrapperError ("ToGet", CUBLAS_WRAPPER_ERROR_GET);
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} |
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printf("\n%s of %s, size %i:\n",mesgVector,nameVector,dimVector);
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for (i=0;i<dimVector;i++) |
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{
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printf("%s[%i]=%2.10e\n",nameVector,i,P[i]);
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} |
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free(P); |
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#endif
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return 0; |
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} |
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#endif
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int bench(int dim,int RUNS) |
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{
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/*
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int dim=1000;
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int RUNS=100;
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int incx=1;
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*/
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#ifdef PRINT
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LENGTH factor=1.;
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#endif
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LENGTH alpha=1.,beta=0.; |
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LENGTH *A,*B,*C,*D; |
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/* checkBefore checkAfter checks */
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LENGTH *checksA,*checksB; |
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int i=0, j=0; |
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double duration;
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struct timeval tv1,tv2;
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struct timezone tz;
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/* Create 4 Matrix of dimension dim by dim */
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A=malloc(dim*dim*sizeof(LENGTH));
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B=malloc(dim*dim*sizeof(LENGTH));
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C=malloc(dim*dim*sizeof(LENGTH));
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D=malloc(dim*dim*sizeof(LENGTH));
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/* Create 2 vectors for checker Before and After */
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checksA=malloc(RUNS*sizeof(LENGTH));
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checksB=malloc(RUNS*sizeof(LENGTH));
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/* Initialize elements with random numbers */
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/* Initialize the seed for rand() */
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/* srand(time()); */
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for (i=0; i<dim; i++) { |
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for (j=0; j<dim; j++) { |
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A[i*dim+j]=(LENGTH)rand()/(RAND_MAX+1.)
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*(LENGTH)(i+1.)/(LENGTH)(j+1.); |
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B[i*dim+j]=(LENGTH)rand()/(RAND_MAX+1.)
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*(LENGTH)(i+1.)/(LENGTH)(j+1.); |
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C[i*dim+j]=0.;
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D[i*dim+j]=0.;
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} |
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} |
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/*
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A[0]=1;
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A[1]=2;
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A[2]=3;
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A[3]=4;
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B[0]=5;
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B[1]=6;
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B[2]=7;
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B[3]=8;
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*/
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/* Print the matrix */
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#ifdef QUIET
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#else
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for (i=0; i<dim; i++) { |
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for (j=0; j<dim; j++) printf("A[%i,%i]=%1.5f ", i,j,A[i*dim+j]); |
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putchar('\n');
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} |
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putchar('\n');
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for (i=0; i<dim; i++) { |
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for (j=0; j<dim; j++) printf("B[%i,%i]=%1.5f ", i,j,B[i*dim+j]); |
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putchar('\n');
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} |
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putchar('\n');
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#endif
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/* Get first timer before launching */
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gettimeofday(&tv1, &tz); |
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/* Compute with CuBLAS library */
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#ifdef CUBLAS
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LENGTH *devPtrA=0, *devPtrB=0, *devPtrC=0, *devPtrD=0; |
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cublasStatus stat1, stat2, stat3, stat4; |
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struct timeval tv3,tv4;
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/* Order is Row */
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/* Have to swap uplo and trans */
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char transa='N',transb='T'; |
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printf("Using CuBLAS: %i iterations for %ix%i matrix\n",
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RUNS,dim,dim); |
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stat1=cublasAlloc(dim*dim,sizeof(devPtrA[0]),(void**)&devPtrA); |
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stat2=cublasAlloc(dim*dim,sizeof(devPtrB[0]),(void**)&devPtrB); |
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stat3=cublasAlloc(dim*dim,sizeof(devPtrC[0]),(void**)&devPtrC); |
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stat4=cublasAlloc(dim*dim,sizeof(devPtrD[0]),(void**)&devPtrD); |
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if ((stat1 != CUBLAS_STATUS_SUCCESS) ||
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(stat2 != CUBLAS_STATUS_SUCCESS) || |
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(stat3 != CUBLAS_STATUS_SUCCESS) || |
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(stat4 != CUBLAS_STATUS_SUCCESS) ) {
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wrapperError ("Double Dgemm", CUBLAS_WRAPPER_ERROR_ALLOC);
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cublasFree (devPtrA); |
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cublasFree (devPtrB); |
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cublasFree (devPtrC); |
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cublasFree (devPtrD); |
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return 1; |
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} |
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|
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stat1=cublasSetMatrix(dim,dim,sizeof(A[0]),A,dim,devPtrA,dim); |
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stat2=cublasSetMatrix(dim,dim,sizeof(B[0]),B,dim,devPtrB,dim); |
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stat3=cublasSetMatrix(dim,dim,sizeof(C[0]),C,dim,devPtrC,dim); |
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stat4=cublasSetMatrix(dim,dim,sizeof(D[0]),D,dim,devPtrD,dim); |
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if ((stat1 != CUBLAS_STATUS_SUCCESS) ||
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(stat2 != CUBLAS_STATUS_SUCCESS) || |
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(stat3 != CUBLAS_STATUS_SUCCESS) || |
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(stat4 != CUBLAS_STATUS_SUCCESS) ) {
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wrapperError ("Double Dgemm", CUBLAS_WRAPPER_ERROR_SET);
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cublasFree (devPtrA); |
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cublasFree (devPtrB); |
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cublasFree (devPtrC); |
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cublasFree (devPtrD); |
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return 1; |
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} |
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/* Get third timer after memory operation */
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gettimeofday(&tv3, &tz); |
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#ifdef DOUBLE
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for (i=0;i<RUNS;i++) |
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{
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cublasDgemm(transa,transa,dim,dim,dim,alpha,devPtrB,dim, |
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devPtrA,dim,beta,devPtrC,dim); |
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cublasDgemm(transb,transb,dim,dim,dim,alpha,devPtrA,dim, |
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devPtrB,dim,beta,devPtrD,dim); |
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} |
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#else
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for (i=0;i<RUNS;i++) |
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{
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cublasSgemm(transa,transa,dim,dim,dim,alpha,devPtrB,dim, |
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devPtrA,dim,beta,devPtrC,dim); |
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cublasSgemm(transb,transb,dim,dim,dim,alpha,devPtrA,dim, |
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devPtrB,dim,beta,devPtrD,dim); |
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} |
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#endif
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stat3=cublasGetMatrix(dim,dim,sizeof(C[0]),devPtrC,dim,C,dim); |
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stat4=cublasGetMatrix(dim,dim,sizeof(D[0]),devPtrD,dim,D,dim); |
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cublasFree (devPtrA); |
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cublasFree (devPtrB); |
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cublasFree (devPtrC); |
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cublasFree (devPtrD); |
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if ((stat1 != CUBLAS_STATUS_SUCCESS) ) {
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wrapperError ("Double Dgemm", CUBLAS_WRAPPER_ERROR_GET);
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} |
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/* Get fourth timer after memory free */
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gettimeofday(&tv4, &tz); |
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#elif THUNKING
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/* Order is Row : Have to swap uplo='U' and trans='N' */
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char transa='N',transb='T'; |
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printf("Using CuBLAS/Thunking: %i iterations for %ix%i matrix\n",
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RUNS,dim,dim); |
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#ifdef DOUBLE
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for (i=0;i<RUNS;i++) |
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{
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/* Multiply A by X as Y <- A.X */
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CUBLAS_DGEMM(&transa,&transa, |
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&dim,&dim,&dim,&alpha,B,&dim,A,&dim,&beta,C,&dim); |
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CUBLAS_DGEMM(&transb,&transb, |
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&dim,&dim,&dim,&alpha,A,&dim,B,&dim,&beta,D,&dim); |
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} |
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#else
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for (i=0;i<RUNS;i++) |
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{
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/* Multiply A by X as Y <- A.X */
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CUBLAS_SGEMM(&transa,&transa, |
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&dim,&dim,&dim,&alpha,B,&dim,A,&dim,&beta,C,&dim); |
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CUBLAS_SGEMM(&transb,&transb, |
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&dim,&dim,&dim,&alpha,A,&dim,B,&dim,&beta,D,&dim); |
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} |
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|
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#endif
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|
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#elif FBLAS
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|
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/* Order is Row : Have to swap uplo='U' and trans='N' */
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char transa='N',transb='T'; |
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printf("Using FBLAS: %i iterations for %ix%i matrix\n",
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RUNS,dim,dim); |
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#ifdef DOUBLE
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for (i=0;i<RUNS;i++) |
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{
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/* Multiply A by X as Y <- A.X */
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dgemm_(&transa,&transa,&dim,&dim,&dim,&alpha,B,&dim,A,&dim,&beta,C,&dim); |
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dgemm_(&transb,&transb,&dim,&dim,&dim,&alpha,A,&dim,B,&dim,&beta,D,&dim); |
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} |
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|
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#else
|
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|
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for (i=0;i<RUNS;i++) |
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{
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/* Multiply A by X as Y <- A.X */
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sgemm_(&transa,&transa,&dim,&dim,&dim,&alpha,B,&dim,A,&dim,&beta,C,&dim); |
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sgemm_(&transb,&transb,&dim,&dim,&dim,&alpha,A,&dim,B,&dim,&beta,D,&dim); |
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} |
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|
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#endif
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|
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#elif ACML
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|
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/* Order is Row : Have to swap uplo='U' and trans='N' */
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char transa='N',transb='T'; |
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|
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printf("Using ACML: %i iterations for %ix%i matrix\n",
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RUNS,dim,dim); |
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|
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#ifdef DOUBLE
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|
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for (i=0;i<RUNS;i++) |
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{
|
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/* Multiply A by X as Y <- A.X */
|
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dgemm(transa,transa,dim,dim,dim,alpha,B,dim,A,dim,beta,C,dim); |
| 383 |
dgemm(transb,transb,dim,dim,dim,alpha,A,dim,B,dim,beta,D,dim); |
| 384 |
} |
| 385 |
|
| 386 |
#else
|
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|
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for (i=0;i<RUNS;i++) |
| 389 |
{
|
| 390 |
/* Multiply A by X as Y <- A.X */
|
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sgemm(transa,transa,dim,dim,dim,alpha,B,dim,A,dim,beta,C,dim); |
| 392 |
sgemm(transb,transb,dim,dim,dim,alpha,A,dim,B,dim,beta,D,dim); |
| 393 |
} |
| 394 |
|
| 395 |
#endif
|
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|
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#elif GSL
|
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|
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printf("Using GSL: %i iterations for %ix%i matrix\n",RUNS,dim,dim);
|
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|
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/*
|
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RowMajor : Matrix is read row by row
|
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Upper : the no null elements are on top
|
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NoTrans : no transposition before estimation
|
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NonUnit : Matrix is not unit
|
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*/
|
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|
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#ifdef DOUBLE
|
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|
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for (i=0;i<RUNS;i++) |
| 411 |
{
|
| 412 |
/* Multiply A by X as Y <- A.X */
|
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cblas_dgemm(CblasRowMajor,CblasNoTrans,CblasNoTrans, |
| 414 |
dim,dim,dim,alpha,A,dim,B,dim,beta,C,dim); |
| 415 |
cblas_dgemm(CblasRowMajor,CblasTrans,CblasTrans, |
| 416 |
dim,dim,dim,alpha,B,dim,A,dim,beta,D,dim); |
| 417 |
} |
| 418 |
|
| 419 |
#else
|
| 420 |
|
| 421 |
for (i=0;i<RUNS;i++) |
| 422 |
{
|
| 423 |
/* Multiply A by X as Y <- A.X */
|
| 424 |
cblas_sgemm(CblasRowMajor,CblasNoTrans,CblasNoTrans, |
| 425 |
dim,dim,dim,alpha,A,dim,B,dim,beta,C,dim); |
| 426 |
cblas_sgemm(CblasRowMajor,CblasTrans,CblasTrans, |
| 427 |
dim,dim,dim,alpha,B,dim,A,dim,beta,D,dim); |
| 428 |
} |
| 429 |
|
| 430 |
#endif
|
| 431 |
|
| 432 |
#else
|
| 433 |
|
| 434 |
printf("Using CBLAS: %i iterations for %ix%i matrix\n",RUNS,dim,dim);
|
| 435 |
|
| 436 |
/*
|
| 437 |
RowMajor : Matrix is read row bu row
|
| 438 |
Upper : the no null elements are on top
|
| 439 |
NoTrans : no transposition before estimation
|
| 440 |
NonUnit : Matrix is not unit
|
| 441 |
*/
|
| 442 |
|
| 443 |
#ifdef DOUBLE
|
| 444 |
|
| 445 |
for (i=0;i<RUNS;i++) |
| 446 |
{
|
| 447 |
cblas_dgemm(CblasRowMajor,CblasNoTrans,CblasNoTrans, |
| 448 |
dim,dim,dim,alpha,A,dim,B,dim,beta,C,dim); |
| 449 |
cblas_dgemm(CblasRowMajor,CblasTrans,CblasTrans, |
| 450 |
dim,dim,dim,alpha,B,dim,A,dim,beta,D,dim); |
| 451 |
} |
| 452 |
|
| 453 |
#else
|
| 454 |
|
| 455 |
for (i=0;i<RUNS;i++) |
| 456 |
{
|
| 457 |
cblas_sgemm(CblasRowMajor,CblasNoTrans,CblasNoTrans, |
| 458 |
dim,dim,dim,alpha,A,dim,B,dim,beta,C,dim); |
| 459 |
cblas_sgemm(CblasRowMajor,CblasTrans,CblasTrans, |
| 460 |
dim,dim,dim,alpha,B,dim,A,dim,beta,D,dim); |
| 461 |
} |
| 462 |
|
| 463 |
#endif
|
| 464 |
|
| 465 |
#endif
|
| 466 |
|
| 467 |
/* Get second timer after launching */
|
| 468 |
gettimeofday(&tv2, &tz); |
| 469 |
|
| 470 |
/* Store the checker of errors */
|
| 471 |
checksA[0]=0.; |
| 472 |
|
| 473 |
for (i=0; i<dim; i++) { |
| 474 |
for (j=0; j<dim; j++) { |
| 475 |
checksA[0]=checksA[0]+fabs(D[i*dim+j]-C[j*dim+i]); |
| 476 |
} |
| 477 |
} |
| 478 |
|
| 479 |
/* Print the matrix */
|
| 480 |
|
| 481 |
#ifdef QUIET
|
| 482 |
#else
|
| 483 |
for (i=0; i<dim; i++) { |
| 484 |
for (j=0; j<dim; j++) printf("C[%i,%i]=%1.5f ", i,j,C[i*dim+j]); |
| 485 |
putchar('\n');
|
| 486 |
} |
| 487 |
putchar('\n');
|
| 488 |
for (i=0; i<dim; i++) { |
| 489 |
for (j=0; j<dim; j++) printf("D[%i,%i]=%1.5f ", i,j,D[i*dim+j]); |
| 490 |
putchar('\n');
|
| 491 |
} |
| 492 |
putchar('\n');
|
| 493 |
#endif
|
| 494 |
|
| 495 |
/* Free 1 Matrix and 2 Vectors of dimension dim */
|
| 496 |
|
| 497 |
free(A); |
| 498 |
free(B); |
| 499 |
free(C); |
| 500 |
free(D); |
| 501 |
|
| 502 |
putchar('\n');
|
| 503 |
|
| 504 |
#ifdef CUBLAS
|
| 505 |
double memoryIn,memoryOut;
|
| 506 |
|
| 507 |
memoryIn=(double)((tv3.tv_sec-tv1.tv_sec) * 1000000L + \ |
| 508 |
(tv3.tv_usec-tv1.tv_usec))/1000000.; |
| 509 |
|
| 510 |
memoryOut=(double)((tv2.tv_sec-tv4.tv_sec) * 1000000L + \ |
| 511 |
(tv2.tv_usec-tv4.tv_usec))/1000000.; |
| 512 |
|
| 513 |
duration=(double)((tv4.tv_sec-tv3.tv_sec) * 1000000L + \ |
| 514 |
(tv4.tv_usec-tv3.tv_usec))/1000000./RUNS; |
| 515 |
|
| 516 |
printf("Duration of memory allocation : %2.10f s\n",memoryIn);
|
| 517 |
printf("Duration of memory free : %2.10f s\n",memoryOut);
|
| 518 |
#else
|
| 519 |
duration=(double)((tv2.tv_sec-tv1.tv_sec) * 1000000L + \ |
| 520 |
(tv2.tv_usec-tv1.tv_usec))/1000000./RUNS; |
| 521 |
|
| 522 |
#endif
|
| 523 |
|
| 524 |
printf("Duration of each cycle : %2.10f s\n",duration);
|
| 525 |
|
| 526 |
printf("Number of GFlops : %2.3f \n",
|
| 527 |
dim*dim*2.*(2.*dim-1)/duration/1000000000.); |
| 528 |
|
| 529 |
printf("Error %1.10f\n",checksA[0]); |
| 530 |
printResults(RUNS,checksA,"C","Errors cumulated"); |
| 531 |
|
| 532 |
putchar('\n');
|
| 533 |
|
| 534 |
/* Free 2 vectors for checker Before and After */
|
| 535 |
|
| 536 |
free(checksA); |
| 537 |
free(checksB); |
| 538 |
|
| 539 |
return 0; |
| 540 |
} |
| 541 |
|
| 542 |
int main(int argc,char **argv) |
| 543 |
{
|
| 544 |
if ((argc==1)|| |
| 545 |
(strcmp(argv[1],"-h")==0)|| |
| 546 |
(strcmp(argv[1],"--help")==0)) |
| 547 |
{
|
| 548 |
printf("\nPerforms a bench using BLAS library implementation:\n\n"
|
| 549 |
"\t#1 Size of square matrices \n"
|
| 550 |
"\t#2 Number of iterations\n\n");
|
| 551 |
} |
| 552 |
else if ((atoi(argv[1])>=2)&& |
| 553 |
(atoi(argv[2])>=1)) |
| 554 |
{
|
| 555 |
bench(atoi(argv[1]),atoi(argv[2])); |
| 556 |
} |
| 557 |
|
| 558 |
return 0; |
| 559 |
} |