OpenBLAS/benchmark/omatcopy.c

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#include "bench.h"

#undef OMATCOPY

#ifndef COMPLEX
#ifdef DOUBLE
#define OMATCOPY BLASFUNC(domatcopy)
#else
#define OMATCOPY BLASFUNC(somatcopy)
#endif
#else
#ifdef DOUBLE
#define OMATCOPY BLASFUNC(zomatcopy)
#else
#define OMATCOPY BLASFUNC(comatcopy)
#endif
#endif
int main(int argc, char *argv[]){
  FLOAT *a, *b;
  FLOAT alpha[] = {1.0, 0.0};
  char trans = 'N';
  char order = 'C';
  blasint crows, ccols, clda, cldb;
  int loops = 1;
  char *p;

  int from =   1;
  int to   = 200;
  int step =   1;
  int i, j;

  double time1, timeg;

  argc--;argv++;

  if (argc > 0) { from = atol(*argv);            argc--; argv++; }
  if (argc > 0) { to   = MAX(atol(*argv), from); argc--; argv++; }
  if (argc > 0) { step = atol(*argv);            argc--; argv++; }

  if ((p = getenv("OPENBLAS_TRANS"))) {
    trans=*p;
  }
  if ((p = getenv("OPENBLAS_ORDER"))) {
    order=*p;
  }
  TOUPPER(trans);
  TOUPPER(order);
  fprintf(stderr, "From : %3d  To : %3d Step=%d : Trans=%c : Order=%c\n", from, to, step, trans, order);
  p = getenv("OPENBLAS_LOOPS");
  if ( p != NULL ) {
    loops = atoi(p);
  }

  if (( a = (FLOAT *)malloc(sizeof(FLOAT) * to * to * COMPSIZE)) == NULL) {
    fprintf(stderr,"Out of Memory!!\n");exit(1);
  }
  if (( b = (FLOAT *)malloc(sizeof(FLOAT) * to * to * COMPSIZE)) == NULL) {
    fprintf(stderr,"Out of Memory!!\n");exit(1);
  }

#ifdef __linux
  srandom(getpid());
#endif

  for (i = 0; i < to * to * COMPSIZE; i++) {
    a[i] = ((FLOAT) rand() / (FLOAT) RAND_MAX) - 0.5;
  }
  for (i = 0; i < to * to * COMPSIZE; i++) {
    b[i] = ((FLOAT) rand() / (FLOAT) RAND_MAX) - 0.5;
  }

  fprintf(stderr, "          SIZE                   Flops             Time\n");
  for (i = from; i <= to; i += step) {
    cldb = clda = crows = ccols = i;
    fprintf(stderr, " ROWS=%4d, COLS=%4d : ", (int)crows, (int)ccols);
    begin();

    for (j=0; j<loops; j++) {
      OMATCOPY (&order, &trans, &crows, &ccols, alpha, a, &clda, b, &cldb);
    }

    end();
    time1 = getsec();

    timeg = time1/loops;
    fprintf(stderr,
	    " %10.2f MFlops %10.6f sec\n",
	    COMPSIZE * COMPSIZE * (double)ccols * (double)crows / timeg * 1.e-6, time1);
  }

  free(a);
  free(b);

  return 0;
}