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small modification of gemm.c

This commit is contained in:
Werner Saar 2015-06-03 09:11:51 +02:00
parent a2eaf234fc
commit e19948baa1
1 changed files with 18 additions and 20 deletions
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38
benchmark/gemm.c
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@ -122,7 +122,7 @@ int main(int argc, char *argv[]){
FLOAT *a, *b, *c;
FLOAT alpha[] = {1.0, 1.0};
FLOAT beta [] = {1.0, 1.0};
FLOAT beta [] = {0.0, 0.0};
char trans='N';
blasint m, n, i, j;
int loops = 1;
@ -168,12 +168,21 @@ int main(int argc, char *argv[]){
has_param_n=1;
}
#ifdef linux
srandom(getpid());
#endif
for(j = 0; j < m; j++){
for(i = 0; i < to * COMPSIZE; i++){
a[i + j * to * COMPSIZE] = ((FLOAT) rand() / (FLOAT) RAND_MAX) - 0.5;
b[i + j * to * COMPSIZE] = ((FLOAT) rand() / (FLOAT) RAND_MAX) - 0.5;
c[i + j * to * COMPSIZE] = ((FLOAT) rand() / (FLOAT) RAND_MAX) - 0.5;
}
}
fprintf(stderr, " SIZE Flops\n");
fprintf(stderr, " SIZE Flops Time\n");
for(m = from; m <= to; m += step)
{
@ -188,34 +197,23 @@ int main(int argc, char *argv[]){
fprintf(stderr, " %6dx%d : ", (int)m, (int)n);
gettimeofday( &start, (struct timezone *)0);
for (l=0; l<loops; l++)
{
for(j = 0; j < m; j++){
for(i = 0; i < m * COMPSIZE; i++){
a[i + j * m * COMPSIZE] = ((FLOAT) rand() / (FLOAT) RAND_MAX) - 0.5;
b[i + j * m * COMPSIZE] = ((FLOAT) rand() / (FLOAT) RAND_MAX) - 0.5;
c[i + j * m * COMPSIZE] = ((FLOAT) rand() / (FLOAT) RAND_MAX) - 0.5;
}
}
gettimeofday( &start, (struct timezone *)0);
GEMM (&trans, &trans, &m, &n, &m, alpha, a, &m, b, &m, beta, c, &m );
gettimeofday( &stop, (struct timezone *)0);
time1 = (double)(stop.tv_sec - start.tv_sec) + (double)((stop.tv_usec - start.tv_usec)) * 1.e-6;
timeg += time1;
}
gettimeofday( &stop, (struct timezone *)0);
time1 = (double)(stop.tv_sec - start.tv_sec) + (double)((stop.tv_usec - start.tv_usec)) * 1.e-6;
timeg /= loops;
timeg = time1/loops;
fprintf(stderr,
" %10.2f MFlops\n",
COMPSIZE * COMPSIZE * 2. * (double)m * (double)m * (double)n / timeg * 1.e-6);
" %10.2f MFlops %10.6f sec\n",
COMPSIZE * COMPSIZE * 2. * (double)m * (double)m * (double)n / timeg * 1.e-6, time1);
}