benchmarks initial commit

[riscv-tests.git] / benchmarks / multiply / multiply_main.c

diff --git a/benchmarks/multiply/multiply_main.c b/benchmarks/multiply/multiply_main.c
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+// *************************************************************************
+// multiply filter bencmark
+// -------------------------------------------------------------------------
+//
+// This benchmark tests the software multiply implemenation. The
+// input data (and reference data) should be generated using the
+// multiply_gendata.pl perl script and dumped to a file named
+// dataset1.h You should not change anything except the
+// HOST_DEBUG and VERIFY macros for your timing run.
+
+#include "multiply.h"
+
+//--------------------------------------------------------------------------
+// Macros
+
+// Set HOST_DEBUG to 1 if you are going to compile this for a host 
+// machine (ie Athena/Linux) for debug purposes and set HOST_DEBUG 
+// to 0 if you are compiling with the smips-gcc toolchain.
+
+#ifndef HOST_DEBUG
+#define HOST_DEBUG 0
+#endif
+
+// Set PREALLOCATE to 1 if you want to preallocate the benchmark
+// function before starting stats. If you have instruction/data
+// caches and you don't want to count the overhead of misses, then
+// you will need to use preallocation.
+
+#ifndef PREALLOCATE
+#define PREALLOCATE 0
+#endif
+
+// Set VERIFY to 1 if you want the program to check that the sort
+// function returns the right answer. When you are doing your 
+// benchmarking you should set this to 0 so that the verification
+// is not included in your timing.
+
+#ifndef VERIFY
+#define VERIFY     1
+#endif
+
+// Set SET_STATS to 1 if you want to carve out the piece that actually
+// does the computation.
+
+#ifndef SET_STATS
+#define SET_STATS 0
+#endif
+
+//--------------------------------------------------------------------------
+// Input/Reference Data
+
+#include "dataset1.h"
+
+//--------------------------------------------------------------------------
+// Helper functions
+
+int verify( int n, int test[], int correct[] )
+{
+  int i;
+  for ( i = 0; i < n; i++ ) {
+    if ( test[i] != correct[i] ) {
+      return 2;
+    }
+  }
+  return 1;
+}
+
+#if HOST_DEBUG
+void printArray( char name[], int n, int arr[] )
+{
+  int i;
+  printf( " %10s :", name );
+  for ( i = 0; i < n; i++ )
+    printf( " %3d ", arr[i] );
+  printf( "\n" );
+}
+#endif
+
+void finishTest( int toHostValue )
+{
+#if HOST_DEBUG
+  if ( toHostValue == 1 )
+    printf( "*** PASSED ***\n" );
+  else
+    printf( "*** FAILED *** (tohost = %d)\n", toHostValue );
+  exit(0);
+#else
+  asm( "mtpcr %0, cr30" : : "r" (toHostValue) );
+  while ( 1 ) { }
+#endif
+}
+
+void setStats( int enable )
+{
+#if ( !HOST_DEBUG && SET_STATS )
+  asm( "mtpcr %0, cr10" : : "r" (enable) );
+#endif
+}
+
+//--------------------------------------------------------------------------
+// Main
+
+int main( int argc, char* argv[] )
+{
+  int i;
+  int results_data[DATA_SIZE];
+
+  // Output the input arrays
+
+#if HOST_DEBUG
+  printArray( "input1",  DATA_SIZE, input_data1  );
+  printArray( "input2",  DATA_SIZE, input_data2  );
+  printArray( "verify", DATA_SIZE, verify_data );
+#endif
+
+#if ( !HOST_DEBUG && PREALLOCATE )
+  for (i = 0; i < DATA_SIZE; i++)
+  {
+    results_data[i] = multiply( input_data1[i], input_data2[i] );
+  }
+#endif
+
+#if HOST_DEBUG
+  for (i = 0; i < DATA_SIZE; i++)
+  {
+    results_data[i] = multiply( input_data1[i], input_data2[i] );
+  }
+#else
+  setStats(1);
+  for (i = 0; i < DATA_SIZE; i++)
+  {
+    results_data[i] = multiply( input_data1[i], input_data2[i] );
+  }
+  setStats(0);
+#endif
+  
+  // Print out the results
+
+#if HOST_DEBUG
+  printArray( "results", DATA_SIZE, results_data );
+#endif
+
+  // Check the results
+
+  finishTest(verify( DATA_SIZE, results_data, verify_data ));
+
+}