aboutsummaryrefslogtreecommitdiffstats
path: root/benchmarks/fft/generate.c
blob: f5135e28b1827b1f26cc78b2e8ef6464dec6fe66 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <assert.h>

#include "fft.h"
// Fake benchmark function to satisfy the extern
void fft1D_512(double data_x[512], double data_y[512]){ }

void generate_binary()
{
  struct bench_args_t data;
  char *ptr;
  int status, i, fd, written=0;

  // Fill data structure
  srandom(1);
  for(i=0; i<512; i++){
    data.work_x[i] = (double)random();
    data.work_y[i] = (double)random();
  }

  // Open and write
  fd = open("input.data", O_WRONLY|O_CREAT|O_TRUNC, S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH);
  assert( fd>0 && "Couldn't open input data file" );
  
  ptr = (char *) &data;
  while( written<sizeof(data) ) {
    status = write( fd, ptr, sizeof(data)-written );
    assert( status>=0 && "Couldn't write input data file" );
    written += status;
  }
}

int main(int argc, char **argv)
{
  generate_binary();
  return 0;
}