OpenBLAS/benchmark/trsm.c

/***************************************************************************
Copyright (c) 2014, The OpenBLAS Project
All rights reserved.
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modification, are permitted provided that the following conditions are
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its contributors may be used to endorse or promote products
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE OPENBLAS PROJECT OR CONTRIBUTORS BE
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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*****************************************************************************/

#include <stdio.h>
#include <stdlib.h>
#ifdef __CYGWIN32__
#include <sys/time.h>
#endif
#include "common.h"


#undef TRSM

#ifndef COMPLEX

#ifdef DOUBLE
#define TRSM   BLASFUNC(dtrsm)
#else
#define TRSM   BLASFUNC(strsm)
#endif

#else

#ifdef DOUBLE
#define TRSM   BLASFUNC(ztrsm)
#else
#define TRSM   BLASFUNC(ctrsm)
#endif

#endif

#if defined(__WIN32__) || defined(__WIN64__)

#ifndef DELTA_EPOCH_IN_MICROSECS
#define DELTA_EPOCH_IN_MICROSECS 11644473600000000ULL
#endif

int gettimeofday(struct timeval *tv, void *tz){

  FILETIME ft;
  unsigned __int64 tmpres = 0;
  static int tzflag;

  if (NULL != tv)
    {
      GetSystemTimeAsFileTime(&ft);

      tmpres |= ft.dwHighDateTime;
      tmpres <<= 32;
      tmpres |= ft.dwLowDateTime;

      /*converting file time to unix epoch*/
      tmpres /= 10;  /*convert into microseconds*/
      tmpres -= DELTA_EPOCH_IN_MICROSECS;
      tv->tv_sec = (long)(tmpres / 1000000UL);
      tv->tv_usec = (long)(tmpres % 1000000UL);
    }

  return 0;
}

#endif

#if !defined(__WIN32__) && !defined(__WIN64__) && !defined(__CYGWIN32__) && 0

static void *huge_malloc(BLASLONG size){
  int shmid;
  void *address;

#ifndef SHM_HUGETLB
#define SHM_HUGETLB 04000
#endif

  if ((shmid =shmget(IPC_PRIVATE,
		     (size + HUGE_PAGESIZE) & ~(HUGE_PAGESIZE - 1),
		     SHM_HUGETLB | IPC_CREAT |0600)) < 0) {
    printf( "Memory allocation failed(shmget).\n");
    exit(1);
  }

  address = shmat(shmid, NULL, SHM_RND);

  if ((BLASLONG)address == -1){
    printf( "Memory allocation failed(shmat).\n");
    exit(1);
  }

  shmctl(shmid, IPC_RMID, 0);

  return address;
}

#define malloc huge_malloc

#endif

int MAIN__(int argc, char *argv[]){

  FLOAT *a, *b;
  FLOAT alpha[] = {1.0, 1.0};
  FLOAT beta [] = {1.0, 1.0};
  char *p;

  char side ='L';
  char uplo ='U';
  char trans='N';
  char diag ='U';

  if ((p = getenv("OPENBLAS_SIDE"))) side=*p; 
  if ((p = getenv("OPENBLAS_UPLO"))) uplo=*p;
  if ((p = getenv("OPENBLAS_TRANS"))) trans=*p;
  if ((p = getenv("OPENBLAS_DIAG"))) diag=*p;

  blasint m, i, j;

  int from =   1;
  int to   = 200;
  int step =   1;

  struct timeval start, stop;
  double time1;

  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++;}

  fprintf(stderr, "From : %3d  To : %3d Step = %3d Side = %c Uplo = %c Trans = %c Diag = %c\n", from, to, step,side,uplo,trans,diag);

  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

  fprintf(stderr, "   SIZE       Flops\n");

  for(m = from; m <= to; m += step)
  {

    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;
      }
    }

    gettimeofday( &start, (struct timezone *)0);

    TRSM (&side, &uplo, &trans, &diag, &m, &m, alpha, a, &m, b, &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);

    fprintf(stderr,
	    " %10.2f MFlops\n",
	    COMPSIZE * COMPSIZE * 1. * (double)m * (double)m * (double)m / time1 * 1.e-6);

  }

  return 0;
}

void main(int argc, char *argv[]) __attribute__((weak, alias("MAIN__")));