command_line.c

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/* file command_line.c
 * This simply tries to add the events listed on the command line one at a time
 * then starts and stops the counters and prints the results
*/

#include "papi_test.h"

static void
print_help( char **argv )
{
    printf( "Usage: %s [options] [EVENTNAMEs]\n", argv[0] );
    printf( "Options:\n\n" );
    printf( "General command options:\n" );
    printf( "\t-u          Display output values as unsigned integers\n" );
    printf( "\t-x          Display output values as hexadecimal\n" );
    printf( "\t-h          Print this help message\n" );
    printf( "\tEVENTNAMEs  Specify one or more preset or native events\n" );
    printf( "\n" );
    printf( "This utility performs work while measuring the specified events.\n" );
    printf( "It can be useful for sanity checks on given events and sets of events.\n" );
}


int
main( int argc, char **argv )
{
    int retval;
    int num_events;
    long long *values;
    char *success;
    PAPI_event_info_t info;
    int EventSet = PAPI_NULL;
    int i, j, data_type, event;
    int u_format = 0;
    int hex_format = 0;

    tests_quiet( argc, argv );  /* Set TESTS_QUIET variable */


    if ( ( retval =
           PAPI_library_init( PAPI_VER_CURRENT ) ) != PAPI_VER_CURRENT )
        test_fail( __FILE__, __LINE__, "PAPI_library_init", retval );

    if ( ( retval = PAPI_create_eventset( &EventSet ) ) != PAPI_OK )
        test_fail( __FILE__, __LINE__, "PAPI_create_eventset", retval );

    if ( TESTS_QUIET )
        i = 2;
    else
        i = 1;

    num_events = argc - i;

    /* Automatically pass if no events, for run_tests.sh */
    if ( num_events == 0 )
        test_pass( __FILE__, NULL, 0 );

    values =
        ( long long * ) malloc( sizeof ( long long ) * ( size_t ) num_events );
    success = ( char * ) malloc( ( size_t ) argc );

    if ( success == NULL || values == NULL )
        test_fail_exit( __FILE__, __LINE__, "malloc", PAPI_ESYS );

    for ( ; i < argc; i++ ) {
        if ( strstr( argv[i], "-h" ) ) {
            print_help( argv );
            exit( 1 );
        } else if ( strstr( argv[i], "-u" ) ) {
            u_format = 1;
            num_events--;
        } else if ( strstr( argv[i], "-x" ) ) {
            hex_format = 1;
            num_events--;
        } else {
            if ( ( retval = PAPI_add_named_event( EventSet, argv[i] ) ) != PAPI_OK ) {
                printf( "Failed adding: %s\nbecause: %s\n", argv[i], 
                    PAPI_strerror(retval));
                success[i] = 0;
            } else {
                success[i] = 1;
                printf( "Successfully added: %s\n", argv[i] );
            }
        }
    }
    printf( "\n" );

    do_flops( 1 );
    do_flush(  );

    if ( ( retval = PAPI_start( EventSet ) ) != PAPI_OK ) {
       test_fail_exit( __FILE__, __LINE__, "PAPI_start", retval );
    }

    do_flops( NUM_FLOPS );
    do_misses( 1, L1_MISS_BUFFER_SIZE_INTS );

    if ( ( retval = PAPI_stop( EventSet, values ) ) != PAPI_OK )
        test_fail_exit( __FILE__, __LINE__, "PAPI_stop", retval );

    for ( i = 1, j = 0; i <= num_events; i++ ) {
        if ( success[i] ) {
            if (! (u_format || hex_format) ) {
                retval = PAPI_event_name_to_code( argv[i], &event );
                if (retval == PAPI_OK) {
                    retval = PAPI_get_event_info(event, &info);
                    if (retval == PAPI_OK) data_type = info.data_type;
                    else data_type = PAPI_DATATYPE_INT64;
                }
                switch (data_type) {
                  case PAPI_DATATYPE_UINT64:
                    printf( "%s : \t%llu(u)", argv[i], (unsigned long long)values[j++] );
                    break;
                  case PAPI_DATATYPE_FP64:
                    printf( "%s : \t%0.3f", argv[i], *((double *)(&values[j])) );
                    j++;
                    break;
                  case PAPI_DATATYPE_BIT64:
                    printf( "%s : \t0x%llX", argv[i], values[j++] );
                    break;
                  case PAPI_DATATYPE_INT64:
                  default:
                    printf( "%s : \t%lld", argv[i], values[j++] );
                    break;
                }
                if (retval == PAPI_OK)  printf( " %s", info.units );
                printf( "\n" );
            }
            if (u_format) printf( "%s : \t%llu(u)\n", argv[i], (unsigned long long)values[j++] );
            if (u_format && hex_format) j--;
            if (hex_format) printf( "%s : \t0x%llX\n", argv[i], values[j++] );
        } else {
            printf( "%s : \t---------\n", argv[i] );
        }
    }

    printf( "\n----------------------------------\n" );
    printf
        ( "Verification: Checks for valid event name.\n This utility lets you add events from the command line interface to see if they work.\n" );
    test_pass( __FILE__, NULL, 0 );
    exit( 1 );
}