d5/db5/reset__multiplex_8c_source.html

00001 /* This file performs the same tests as the reset test
00002    but does it with the events multiplexed.
00003
00004    This is mostly to test perf_event, where resetting
00005    multiplexed events is handled differently than grouped events.
00006
00007 */
00008
00009 #include "papi_test.h"
00010
00011 int
00012 main( int argc, char **argv )
00013 {
00014     int retval, num_tests = 9, num_events, tmp, i;
00015     long long **values;
00016     int EventSet = PAPI_NULL;
00017     int PAPI_event, mask;
00018     char event_name[PAPI_MAX_STR_LEN], add_event_str[PAPI_MAX_STR_LEN];
00019
00020     /* Set TESTS_QUIET variable */
00021     tests_quiet( argc, argv );
00022
00023     /* Init the PAPI library */
00024     retval = PAPI_library_init( PAPI_VER_CURRENT );
00025     if ( retval != PAPI_VER_CURRENT ) {
00026        test_fail( __FILE__, __LINE__, "PAPI_library_init", retval );
00027     }
00028
00029         retval = PAPI_multiplex_init(  );
00030         if ( retval == PAPI_ENOSUPP) {
00031            test_skip(__FILE__, __LINE__, "Multiplex not supported", 1);
00032         }
00033         else if ( retval != PAPI_OK ) {
00034            test_fail( __FILE__, __LINE__, "PAPI_multiplex_init", retval );
00035     }
00036
00037
00038     /* add PAPI_TOT_CYC and one of the events in
00039        PAPI_FP_INS, PAPI_FP_OPS or PAPI_TOT_INS,
00040        depending on the availability of the event
00041        on the platform */
00042     EventSet = add_two_events( &num_events, &PAPI_event, &mask );
00043
00044     /* Set multiplexing on the eventset */
00045
00046         retval = PAPI_set_multiplex( EventSet );
00047         if ( retval != PAPI_OK) {
00048            test_fail(__FILE__, __LINE__, "Setting multiplex", retval);
00049         }
00050
00051     retval = PAPI_event_code_to_name( PAPI_event, event_name );
00052     if ( retval != PAPI_OK ) {
00053        test_fail( __FILE__, __LINE__, "PAPI_event_code_to_name", retval );
00054     }
00055     sprintf( add_event_str, "PAPI_add_event[%s]", event_name );
00056
00057     values = allocate_test_space( num_tests, num_events );
00058
00059     /*===== Test 1: Start/Stop =======================*/
00060
00061     retval = PAPI_start( EventSet );
00062     if ( retval != PAPI_OK ) {
00063         test_fail( __FILE__, __LINE__, "PAPI_start", retval );
00064     }
00065
00066     do_flops( NUM_FLOPS );
00067
00068     retval = PAPI_stop( EventSet, values[0] );
00069     if ( retval != PAPI_OK ) {
00070         test_fail( __FILE__, __LINE__, "PAPI_stop", retval );
00071     }
00072
00073     /*===== Test 2 Start/Stop =======================*/
00074
00075     retval = PAPI_start( EventSet );
00076     if ( retval != PAPI_OK ) {
00077         test_fail( __FILE__, __LINE__, "PAPI_start", retval );
00078     }
00079
00080     do_flops( NUM_FLOPS );
00081
00082     retval = PAPI_stop( EventSet, values[1] );
00083     if ( retval != PAPI_OK ) {
00084         test_fail( __FILE__, __LINE__, "PAPI_stop", retval );
00085     }
00086
00087     /*===== Test 3: Reset/Start/Stop =======================*/
00088
00089     retval = PAPI_reset( EventSet );
00090     if ( retval != PAPI_OK ) {
00091         test_fail( __FILE__, __LINE__, "PAPI_reset", retval );
00092     }
00093
00094     retval = PAPI_start( EventSet );
00095     if ( retval != PAPI_OK ) {
00096         test_fail( __FILE__, __LINE__, "PAPI_start", retval );
00097     }
00098
00099     do_flops( NUM_FLOPS );
00100
00101     retval = PAPI_stop( EventSet, values[2] );
00102     if ( retval != PAPI_OK ) {
00103         test_fail( __FILE__, __LINE__, "PAPI_stop", retval );
00104     }
00105
00106     /*===== Test 4: Start/Read =======================*/
00107
00108     retval = PAPI_start( EventSet );
00109     if ( retval != PAPI_OK ) {
00110         test_fail( __FILE__, __LINE__, "PAPI_start", retval );
00111     }
00112
00113     do_flops( NUM_FLOPS / 2 );
00114
00115     retval = PAPI_read( EventSet, values[3] );
00116     if ( retval != PAPI_OK ) {
00117         test_fail( __FILE__, __LINE__, "PAPI_read", retval );
00118     }
00119
00120     /*===== Test 5: Read =======================*/
00121
00122     do_flops( NUM_FLOPS / 2 );
00123
00124     retval = PAPI_read( EventSet, values[4] );
00125     if ( retval != PAPI_OK ) {
00126         test_fail( __FILE__, __LINE__, "PAPI_read", retval );
00127     }
00128
00129     /*===== Test 6: Read/Accum =======================*/
00130
00131     do_flops( NUM_FLOPS / 2 );
00132
00133     retval = PAPI_read( EventSet, values[5] );
00134     if ( retval != PAPI_OK ) {
00135         test_fail( __FILE__, __LINE__, "PAPI_read", retval );
00136     }
00137
00138     retval = PAPI_accum( EventSet, values[5] );
00139
00140     if ( retval != PAPI_OK ) {
00141         test_fail( __FILE__, __LINE__, "PAPI_accum", retval );
00142     }
00143
00144     /*===== Test 7: Read =======================*/
00145
00146     do_flops( NUM_FLOPS / 2 );
00147
00148     retval = PAPI_read( EventSet, values[6] );
00149     if ( retval != PAPI_OK ) {
00150         test_fail( __FILE__, __LINE__, "PAPI_read", retval );
00151     }
00152
00153     /*===== Test 8 Reset/Stop =======================*/
00154     retval = PAPI_reset( EventSet );
00155     if ( retval != PAPI_OK ) {
00156         test_fail( __FILE__, __LINE__, "PAPI_reset", retval );
00157     }
00158
00159     do_flops( NUM_FLOPS / 2 );
00160
00161     retval = PAPI_stop( EventSet, values[7] );
00162     if ( retval != PAPI_OK ) {
00163         test_fail( __FILE__, __LINE__, "PAPI_stop", retval );
00164     }
00165
00166     /*===== Test 9: Reset/Read =======================*/
00167     retval = PAPI_reset( EventSet );
00168     if ( retval != PAPI_OK ) {
00169         test_fail( __FILE__, __LINE__, "PAPI_reset", retval );
00170     }
00171
00172     retval = PAPI_read( EventSet, values[8] );
00173     if ( retval != PAPI_OK ) {
00174         test_fail( __FILE__, __LINE__, "PAPI_read", retval );
00175     }
00176
00177     remove_test_events( &EventSet, mask );
00178
00179     printf( "Test case: Start/Stop/Read/Accum/Reset.\n" );
00180     printf( "----------------------------------------------------------------\n" );
00181     tmp = PAPI_get_opt( PAPI_DEFDOM, NULL );
00182     printf( "Default domain is: %d (%s)\n", tmp,
00183         stringify_all_domains( tmp ) );
00184     tmp = PAPI_get_opt( PAPI_DEFGRN, NULL );
00185     printf( "Default granularity is: %d (%s)\n", tmp,
00186             stringify_granularity( tmp ) );
00187     printf( "Using %d iterations of c += a*b\n", NUM_FLOPS );
00188     printf( "-------------------------------------------------------------------------\n" );
00189
00190     sprintf( add_event_str, "%s:", event_name );
00191     printf( "                           PAPI_TOT_CYC    %s\n", event_name );
00192     printf( "1. start,ops,stop          %10lld      %10lld\n", values[0][0],
00193             values[0][1] );
00194     printf( "2. start,ops,stop          %10lld      %10lld\n", values[1][0],
00195             values[1][1] );
00196     printf( "3. reset,start,ops,stop    %10lld      %10lld\n", values[2][0],
00197             values[2][1] );
00198     printf( "4. start,ops/2,read        %10lld      %10lld\n", values[3][0],
00199             values[3][1] );
00200     printf( "5. ops/2,read              %10lld      %10lld\n", values[4][0],
00201             values[4][1] );
00202     printf( "6. ops/2,accum             %10lld      %10lld\n", values[5][0],
00203             values[5][1] );
00204     printf( "7. ops/2,read              %10lld      %10lld\n", values[6][0],
00205             values[6][1] );
00206     printf( "8. reset,ops/2,stop        %10lld      %10lld\n", values[7][0],
00207             values[7][1] );
00208     printf( "9. reset,read              %10lld      %10lld\n", values[8][0],
00209             values[8][1] );
00210     printf
00211         ( "-------------------------------------------------------------------------\n" );
00212     printf( "Verification:\n" );
00213     printf( "Row 1 approximately equals rows 2 and 3 \n" );
00214     printf( "Row 4 approximately equals 1/2 of row 3\n" );
00215     printf( "Row 5 approximately equals twice row 4\n" );
00216     printf( "Row 6 approximately equals 6 times row 4\n" );
00217     printf( "Rows 7 and 8 approximately equal row 4\n" );
00218     printf( "Row 9 equals 0\n" );
00219     printf( "%% difference between %s 1 & 2: %.2f\n", "PAPI_TOT_CYC",
00220         100.0 * ( float ) values[0][0] / ( float ) values[1][0] );
00221     printf( "%% difference between %s 1 & 2: %.2f\n", add_event_str,
00222         100.0 * ( float ) values[0][1] / ( float ) values[1][1] );
00223
00224
00225     for ( i = 0; i <= 1; i++ ) {
00226         if ( !approx_equals
00227              ( ( double ) values[0][i], ( double ) values[1][i] ) )
00228             test_fail( __FILE__, __LINE__,
00229                        ( ( i == 0 ) ? "PAPI_TOT_CYC" : add_event_str ), 1 );
00230         if ( !approx_equals
00231              ( ( double ) values[1][i], ( double ) values[2][i] ) )
00232             test_fail( __FILE__, __LINE__,
00233                        ( ( i == 0 ) ? "PAPI_TOT_CYC" : add_event_str ), 1 );
00234         if ( !approx_equals
00235              ( ( double ) values[2][i], ( double ) values[3][i] * 2.0 ) )
00236             test_fail( __FILE__, __LINE__,
00237                        ( ( i == 0 ) ? "PAPI_TOT_CYC" : add_event_str ), 1 );
00238         if ( !approx_equals
00239              ( ( double ) values[2][i], ( double ) values[4][i] ) )
00240             test_fail( __FILE__, __LINE__,
00241                        ( ( i == 0 ) ? "PAPI_TOT_CYC" : add_event_str ), 1 );
00242         if ( !approx_equals
00243              ( ( double ) values[5][i], ( double ) values[3][i] * 6.0 ) )
00244             test_fail( __FILE__, __LINE__,
00245                        ( ( i == 0 ) ? "PAPI_TOT_CYC" : add_event_str ), 1 );
00246         if ( !approx_equals
00247              ( ( double ) values[6][i], ( double ) values[3][i] ) )
00248             test_fail( __FILE__, __LINE__,
00249                        ( ( i == 0 ) ? "PAPI_TOT_CYC" : add_event_str ), 1 );
00250         if ( !approx_equals
00251              ( ( double ) values[7][i], ( double ) values[3][i] ) )
00252             test_fail( __FILE__, __LINE__,
00253                        ( ( i == 0 ) ? "PAPI_TOT_CYC" : add_event_str ), 1 );
00254         if ( values[8][i] != 0LL )
00255             test_fail( __FILE__, __LINE__,
00256                        ( ( i == 0 ) ? "PAPI_TOT_CYC" : add_event_str ), 1 );
00257     }
00258
00259     test_pass( __FILE__, values, num_tests );
00260     return 0;
00261 }