text: /***************************************************************************
  Copyright (c) 2014, The OpenBLAS Project
  All rights reserved.
  Redistribution and use in source and binary forms, with or without
  modification, are permitted provided that the following conditions are
  met:
  1. Redistributions of source code must retain the above copyright
  notice, this list of conditions and the following disclaimer.
  2. Redistributions in binary form must reproduce the above copyright
  notice, this list of conditions and the following disclaimer in
  the documentation and/or other materials provided with the
  distribution.
  3. Neither the name of the OpenBLAS project nor the names of
  its contributors may be used to endorse or promote products
  derived from this software without specific prior written permission.
  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
  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
  USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *****************************************************************************/
  
  #include <stdio.h>
  #include <stdlib.h>
  #ifdef __CYGWIN32__
  #include <sys/time.h>
  #endif
  #include "common.h"
  
  
  #undef GER
  
  
  #ifdef DOUBLE
  #define GER   BLASFUNC(dger)
  #else
  #define GER   BLASFUNC(sger)
  #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, *x, *y;
    FLOAT alpha[] = {1.0, 1.0};
    blasint m, i, j;
    blasint inc_x=1,inc_y=1;
    blasint n=0;
    int has_param_n = 0;
    int loops = 1;
    int l;
    char *p;
  
    int from =   1;
    int to   = 200;
    int step =   1;
  
    struct timeval start, stop;
    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_LOOPS")))  loops = atoi(p);
    if ((p = getenv("OPENBLAS_INCX")))   inc_x = atoi(p);
    if ((p = getenv("OPENBLAS_INCY")))   inc_y = atoi(p);
    if ((p = getenv("OPENBLAS_PARAM_N"))) {
  	  n = atoi(p);
  	  if ((n>0) && (n<=to)) has_param_n = 1;
    }
  
    if ( has_param_n == 1 )
      fprintf(stderr, "From : %3d  To : %3d Step = %3d N = %d Inc_x = %d Inc_y = %d Loops = %d\n", from, to, step,n,inc_x,inc_y,loops);
    else
      fprintf(stderr, "From : %3d  To : %3d Step = %3d Inc_x = %d Inc_y = %d Loops = %d\n", from, to, step,inc_x,inc_y,loops);
  
    if (( a = (FLOAT *)malloc(sizeof(FLOAT) * to * to * COMPSIZE)) == NULL){
      fprintf(stderr,"Out of Memory!!\n");exit(1);
    }
  
    if (( x = (FLOAT *)malloc(sizeof(FLOAT) * to * abs(inc_x) * COMPSIZE)) == NULL){
      fprintf(stderr,"Out of Memory!!\n");exit(1);
    }
  
    if (( y = (FLOAT *)malloc(sizeof(FLOAT) * to * abs(inc_y) * 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)
    {
  
     timeg=0;
  
     if ( has_param_n == 0 ) n = m;
  
     fprintf(stderr, " %6dx%d : ", (int)m,(int)n);
  
     for(j = 0; j < m; j++){
        		for(i = 0; i < n * COMPSIZE; i++){
  			a[i + j * m * COMPSIZE] = ((FLOAT) rand() / (FLOAT) RAND_MAX) - 0.5;
        		}
     }
  
  
     for(i = 0; i < m * COMPSIZE * abs(inc_x); i++){
  			x[i] = ((FLOAT) rand() / (FLOAT) RAND_MAX) - 0.5;
     }
  
     for(i = 0; i < n * COMPSIZE * abs(inc_y); i++){
  			y[i] = ((FLOAT) rand() / (FLOAT) RAND_MAX) - 0.5;
     }
  
      for (l=0; l<loops; l++)
      {
  
      	gettimeofday( &start, (struct timezone *)0);
  
      	GER (&m, &n, alpha, x, &inc_x, y, &inc_y, a , &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;
  
      }
  
      timeg /= loops;
  
      fprintf(stderr,
  	    " %10.2f MFlops\n",
  	    COMPSIZE * COMPSIZE * 2. * (double)m * (double)n / timeg * 1.e-6);
  
    }
  
    return 0;
  }
  
  // void main(int argc, char *argv[]) __attribute__((weak, alias("MAIN__")));
  
  