floraachy
/
OpenBLAS
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

added conf option for number of loops

This commit is contained in:
wernsaar 2014-07-12 11:54:39 +02:00
parent b0e7810a6b
commit 1d4ffddf69
1 changed files with 32 additions and 20 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

52
benchmark/gemm.c
View File

@ -123,17 +123,18 @@ int MAIN__(int argc, char *argv[]){
FLOAT *a, *b, *c;
FLOAT alpha[] = {1.0, 1.0};
FLOAT beta [] = {1.0, 1.0};
char trans='N';
blasint m, i, j;
int loops = 1;
int l;
char *p;
int from = 1;
int to = 200;
int step = 1;
struct timeval start, stop;
double time1;
double time1,timeg;
argc--;argv++;
@ -155,6 +156,9 @@ int MAIN__(int argc, char *argv[]){
fprintf(stderr,"Out of Memory!!\n");exit(1);
}
p = getenv("OPENBLAS_LOOPS");
if ( p != NULL )
loops = atoi(p);
#ifdef linux
@ -166,29 +170,37 @@ int MAIN__(int argc, char *argv[]){
for(m = from; m <= to; m += step)
{
timeg=0;
fprintf(stderr, " %6d : ", (int)m);
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;
}
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, &m, &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( &start, (struct timezone *)0);
GEMM (&trans, &trans, &m, &m, &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;
gettimeofday( &start, (struct timezone *)0);
timeg /= loops;
fprintf(stderr,
" %10.2f MFlops\n",
COMPSIZE * COMPSIZE * 2. * (double)m * (double)m * (double)m / time1 * 1.e-6);
COMPSIZE * COMPSIZE * 2. * (double)m * (double)m * (double)m / timeg * 1.e-6);
}