Adding benchmarks to branch_jc

1 files changed, 43 insertions, 0 deletions

diff --git a/benchmarks/fft/generate.c b/benchmarks/fft/generate.c
new file mode 100644
index 0000000..f5135e2
--- /dev/null
+++ b/benchmarks/fft/generate.c
@@ -0,0 +1,43 @@
+#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;
+}
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