5c435ddf56e20dc027d2e94cdc1d58dc687e7056
1 //**************************************************************************
2 // Median filter bencmark
3 //--------------------------------------------------------------------------
5 // This benchmark performs a 1D three element median filter. The
6 // input data (and reference data) should be generated using the
7 // median_gendata.pl perl script and dumped to a file named
8 // dataset1.h You should not change anything except the
9 // HOST_DEBUG and PREALLOCATE macros for your timing run.
13 //--------------------------------------------------------------------------
16 // Set HOST_DEBUG to 1 if you are going to compile this for a host
17 // machine (ie Athena/Linux) for debug purposes and set HOST_DEBUG
18 // to 0 if you are compiling with the smips-gcc toolchain.
24 // Set PREALLOCATE to 1 if you want to preallocate the benchmark
25 // function before starting stats. If you have instruction/data
26 // caches and you don't want to count the overhead of misses, then
27 // you will need to use preallocation.
33 // Set SET_STATS to 1 if you want to carve out the piece that actually
34 // does the computation.
40 //--------------------------------------------------------------------------
41 // Input/Reference Data
45 //--------------------------------------------------------------------------
48 int verify( int n
, int test
[], int correct
[] )
51 for ( i
= 0; i
< n
; i
++ ) {
52 if ( test
[i
] != correct
[i
] ) {
60 void printArray( char name
[], int n
, int arr
[] )
63 printf( " %10s :", name
);
64 for ( i
= 0; i
< n
; i
++ )
65 printf( " %3d ", arr
[i
] );
70 void finishTest( int toHostValue
)
73 if ( toHostValue
== 1 )
74 printf( "*** PASSED ***\n" );
76 printf( "*** FAILED *** (tohost = %d)\n", toHostValue
);
79 asm( "mtpcr %0, tohost" : : "r" (toHostValue
) );
84 void setStats( int enable
)
86 #if ( !HOST_DEBUG && SET_STATS )
87 asm( "mtpcr %0, cr10" : : "r" (enable
) );
91 //--------------------------------------------------------------------------
94 int main( int argc
, char* argv
[] )
96 int results_data
[DATA_SIZE
];
98 // Output the input array
101 printArray( "input", DATA_SIZE
, input_data
);
102 printArray( "verify", DATA_SIZE
, verify_data
);
105 // If needed we preallocate everything in the caches
107 #if ( !HOST_DEBUG && PREALLOCATE )
108 median( DATA_SIZE
, input_data
, results_data
);
114 median( DATA_SIZE
, input_data
, results_data
);
117 median( DATA_SIZE
, input_data
, results_data
);
121 // Print out the results
124 printArray( "results", DATA_SIZE
, results_data
);
129 finishTest(verify( DATA_SIZE
, results_data
, verify_data
));