benchmarks/vvadd/vvadd_main.c

   1 // See LICENSE for license details.
   2
   3 //**************************************************************************
   4 // Vector-vector add benchmark
   5 //--------------------------------------------------------------------------
   6 //
   7 // This benchmark uses adds to vectors and writes the results to a
   8 // third vector. The input data (and reference data) should be
   9 // generated using the vvadd_gendata.pl perl script and dumped
  10 // to a file named dataset1.h The smips-gcc toolchain does not
  11 // support system calls so printf's can only be used on a host system,
  12 // not on the smips processor simulator itself. You should not change
  13 // anything except the HOST_DEBUG and PREALLOCATE macros for your timing
  14 // runs.
  15
  16 #include "util.h"
  17
  18 //--------------------------------------------------------------------------
  19 // Input/Reference Data
  20
  21 #include "dataset1.h"
  22
  23 //--------------------------------------------------------------------------
  24 // vvadd function
  25
  26 void vvadd( int n, int a[], int b[], int c[] )
  27 {
  28   int i;
  29   for ( i = 0; i < n; i++ )
  30     c[i] = a[i] + b[i];
  31 }
  32
  33 //--------------------------------------------------------------------------
  34 // Main
  35
  36 int main( int argc, char* argv[] )
  37 {
  38   int results_data[DATA_SIZE];
  39
  40   // Output the input array
  41   printArray( "input1", DATA_SIZE, input1_data );
  42   printArray( "input2", DATA_SIZE, input2_data );
  43   printArray( "verify", DATA_SIZE, verify_data );
  44
  45 #if PREALLOCATE
  46   // If needed we preallocate everything in the caches
  47   vvadd( DATA_SIZE, input1_data, input2_data, results_data );
  48 #endif
  49
  50   // Do the vvadd
  51   setStats(1);
  52   vvadd( DATA_SIZE, input1_data, input2_data, results_data );
  53   setStats(0);
  54
  55   // Print out the results
  56   printArray( "results", DATA_SIZE, results_data );
  57
  58   // Check the results
  59   return verify( DATA_SIZE, results_data, verify_data );
  60 }