benchmarks/vvadd/vvadd_main.c

   1 //**************************************************************************
   2 // Vector-vector add benchmark
   3 //--------------------------------------------------------------------------
   4 //
   5 // This benchmark uses adds to vectors and writes the results to a
   6 // third vector. The input data (and reference data) should be
   7 // generated using the vvadd_gendata.pl perl script and dumped
   8 // to a file named dataset1.h The smips-gcc toolchain does not
   9 // support system calls so printf's can only be used on a host system,
  10 // not on the smips processor simulator itself. You should not change
  11 // anything except the HOST_DEBUG and PREALLOCATE macros for your timing
  12 // runs.
  13
  14 #include "util.h"
  15
  16 //--------------------------------------------------------------------------
  17 // Input/Reference Data
  18
  19 #include "dataset1.h"
  20
  21 //--------------------------------------------------------------------------
  22 // vvadd function
  23
  24 void vvadd( int n, int a[], int b[], int c[] )
  25 {
  26   int i;
  27   for ( i = 0; i < n; i++ )
  28     c[i] = a[i] + b[i];
  29 }
  30
  31 //--------------------------------------------------------------------------
  32 // Main
  33
  34 int main( int argc, char* argv[] )
  35 {
  36   int results_data[DATA_SIZE];
  37
  38   // Output the input array
  39   printArray( "input1", DATA_SIZE, input1_data );
  40   printArray( "input2", DATA_SIZE, input2_data );
  41   printArray( "verify", DATA_SIZE, verify_data );
  42
  43 #if PREALLOCATE
  44   // If needed we preallocate everything in the caches
  45   vvadd( DATA_SIZE, input1_data, input2_data, results_data );
  46 #endif
  47
  48   // Do the vvadd
  49   setStats(1);
  50   vvadd( DATA_SIZE, input1_data, input2_data, results_data );
  51   setStats(0);
  52
  53   // Print out the results
  54   printArray( "results", DATA_SIZE, results_data );
  55
  56   // Check the results
  57   return verify( DATA_SIZE, results_data, verify_data );
  58 }