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/*
* This file is part of MXE.
* See index.html for further information.
*
* taken from: https://gist.github.com/xianyi/5780018
*/
#include "stdio.h"
#include "stdlib.h"
#include "sys/time.h"
#include "time.h"
extern void dgemm_(char*, char*, int*, int*,int*, double*, double*, int*, double*, int*, double*, double*, int*);
int main(int argc, char* argv[])
{
int i;
printf("test!\n");
if(argc<4){
printf("Input Error\n");
return 1;
}
int m = atoi(argv[1]);
int n = atoi(argv[2]);
int k = atoi(argv[3]);
int sizeofa = m * k;
int sizeofb = k * n;
int sizeofc = m * n;
char ta = 'N';
char tb = 'N';
double alpha = 1.2;
double beta = 0.001;
struct timeval start,finish;
double duration;
double* A = (double*)malloc(sizeof(double) * sizeofa);
double* B = (double*)malloc(sizeof(double) * sizeofb);
double* C = (double*)malloc(sizeof(double) * sizeofc);
srand((unsigned)time(NULL));
for (i=0; i<sizeofa; i++)
A[i] = i%3+1;//(rand()%100)/10.0;
for (i=0; i<sizeofb; i++)
B[i] = i%3+1;//(rand()%100)/10.0;
for (i=0; i<sizeofc; i++)
C[i] = i%3+1;//(rand()%100)/10.0;
//#if 0
printf("m=%d,n=%d,k=%d,alpha=%lf,beta=%lf,sizeofc=%d\n",m,n,k,alpha,beta,sizeofc);
gettimeofday(&start, NULL);
dgemm_(&ta, &tb, &m, &n, &k, &alpha, A, &m, B, &k, &beta, C, &m);
gettimeofday(&finish, NULL);
duration = ((double)(finish.tv_sec-start.tv_sec)*1000000 + (double)(finish.tv_usec-start.tv_usec)) / 1000000;
double gflops = 2.0 * m *n*k;
gflops = gflops/duration*1.0e-6;
FILE *fp;
fp = fopen("timeDGEMM.txt", "a");
fprintf(fp, "%dx%dx%d\t%lf s\t%lf MFLOPS\n", m, n, k, duration, gflops);
fclose(fp);
free(A);
free(B);
free(C);
return 0;
}
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