1 // *************************************************************************
2 // multiply filter bencmark
3 // -------------------------------------------------------------------------
5 // This benchmark tests the software multiply implemenation. The
6 // input data (and reference data) should be generated using the
7 // multiply_gendata.pl perl script and dumped to a file named
8 // dataset1.h You should not change anything except the
9 // HOST_DEBUG and VERIFY macros for your timing run.
16 //--------------------------------------------------------------------------
19 // Set HOST_DEBUG to 1 if you are going to compile this for a host
20 // machine (ie Athena/Linux) for debug purposes and set HOST_DEBUG
21 // to 0 if you are compiling with the smips-gcc toolchain.
27 // Set PREALLOCATE to 1 if you want to preallocate the benchmark
28 // function before starting stats. If you have instruction/data
29 // caches and you don't want to count the overhead of misses, then
30 // you will need to use preallocation.
36 // Set VERIFY to 1 if you want the program to check that the sort
37 // function returns the right answer. When you are doing your
38 // benchmarking you should set this to 0 so that the verification
39 // is not included in your timing.
45 // Set SET_STATS to 1 if you want to carve out the piece that actually
46 // does the computation.
52 //--------------------------------------------------------------------------
53 // Input/Reference Data
57 //--------------------------------------------------------------------------
60 int verify( int n
, int test
[], int correct
[] )
63 for ( i
= 0; i
< n
; i
++ ) {
64 if ( test
[i
] != correct
[i
] ) {
72 void printArray( char name
[], int n
, int arr
[] )
75 printf( " %10s :", name
);
76 for ( i
= 0; i
< n
; i
++ )
77 printf( " %3d ", arr
[i
] );
82 void setStats( int enable
)
84 #if ( !HOST_DEBUG && SET_STATS )
85 asm( "mtpcr %0, cr10" : : "r" (enable
) );
89 //--------------------------------------------------------------------------
92 int main( int argc
, char* argv
[] )
95 int results_data
[DATA_SIZE
];
97 // Output the input arrays
100 printArray( "input1", DATA_SIZE
, input_data1
);
101 printArray( "input2", DATA_SIZE
, input_data2
);
102 printArray( "verify", DATA_SIZE
, verify_data
);
105 #if ( !HOST_DEBUG && PREALLOCATE )
106 for (i
= 0; i
< DATA_SIZE
; i
++)
108 results_data
[i
] = multiply( input_data1
[i
], input_data2
[i
] );
113 for (i
= 0; i
< DATA_SIZE
; i
++)
115 results_data
[i
] = multiply( input_data1
[i
], input_data2
[i
] );
119 for (i
= 0; i
< DATA_SIZE
; i
++)
121 results_data
[i
] = multiply( input_data1
[i
], input_data2
[i
] );
126 // Print out the results
129 printArray( "results", DATA_SIZE
, results_data
);
134 finishTest(verify( DATA_SIZE
, results_data
, verify_data
));