all_native_events.c

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/*
 * File:    all_native_events.c
 * Author:  Haihang You
 *          you@cs.utk.edu
 * Mods:    <Your name here>
 *          <Your email here>
 */

/* This file hardware info and performs the following test:
        - Start and stop all native events.
    This is a good preliminary way to validate native event tables.
    In its current form this test also stresses the number of 
    events sets the library can handle outstanding. 
*/

#include "papi_test.h"
extern int TESTS_QUIET;                /* Declared in test_utils.c */
extern unsigned char PENTIUM4;

static int
check_event( int event_code, char *name )
{
    int retval;
    long long values;
    int EventSet = PAPI_NULL;

   /* Is there an issue with older machines? */
   /* Disable for now, add back once we can reproduce */
//  if ( PENTIUM4 ) {
//      if ( strcmp( name, "REPLAY_EVENT:BR_MSP" ) == 0 ) {
//          return 1;
//      }
//  }

    retval = PAPI_create_eventset( &EventSet );
    if ( retval != PAPI_OK )
       test_fail( __FILE__, __LINE__, "PAPI_create_eventset", retval );
   
    retval = PAPI_add_event( EventSet, event_code );
    if ( retval != PAPI_OK ) {
      printf( "Error adding %s %d\n", name, retval );
        return 0;
    } else {
      //        printf( "Added %s successfully ", name );
    }

    retval = PAPI_start( EventSet );
    if ( retval != PAPI_OK ) {
        PAPI_perror( "PAPI_start" );
    } else {
        retval = PAPI_stop( EventSet, &values );
        if ( retval != PAPI_OK ) {
            PAPI_perror( "PAPI_stop" );
            return 0;
        } else {
            printf( "Added and Stopped %s successfully.\n", name );
        }
    }


    retval=PAPI_cleanup_eventset( EventSet );
    if (retval != PAPI_OK ) {
      test_warn( __FILE__, __LINE__, "PAPI_cleanup_eventset", retval);
    }
    retval=PAPI_destroy_eventset( &EventSet );
    if (retval != PAPI_OK ) {
      test_warn( __FILE__, __LINE__, "PAPI_destroy_eventset", retval);
    }
    return ( 1 );
}

int
main( int argc, char **argv )
{
    
    int i, k, add_count = 0, err_count = 0, unc_count = 0, offcore_count = 0;
    int retval;
    PAPI_event_info_t info, info1;
    const PAPI_hw_info_t *hwinfo = NULL;
    char *Intel_i7;
    int event_code;
    int numcmp, cid;

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

    /* Init PAPI library */
    retval = PAPI_library_init( PAPI_VER_CURRENT );
    if ( retval != PAPI_VER_CURRENT ) {
       test_fail( __FILE__, __LINE__, "PAPI_library_init", retval );
    }

    retval = papi_print_header( "Test case ALL_NATIVE_EVENTS: Available "
                "native events and hardware "
                "information.\n",
                &hwinfo );
    if ( retval != PAPI_OK ) {
       test_fail( __FILE__, __LINE__, "PAPI_get_hardware_info", 2 );
    }

    numcmp = PAPI_num_components(  );

    /* we need a little exception processing if it's a Core i7 */
    /* Unfortunately, this test never succeeds... */
    Intel_i7 = strstr( hwinfo->model_string, "Intel Core i7" );

    /* Loop through all components */
    for( cid = 0; cid < numcmp; cid++ ) {

       if ( PAPI_get_component_info( cid ) == NULL ) {
      test_fail( __FILE__, __LINE__, "PAPI_get_component_info", 2 );
       }

       /* For platform independence, always ASK FOR the first event */
       /* Don't just assume it'll be the first numeric value */
       i = 0 | PAPI_NATIVE_MASK;
       retval = PAPI_enum_cmp_event( &i, PAPI_ENUM_FIRST, cid );

       do {
          retval = PAPI_get_event_info( i, &info );

      /* Skip OFFCORE and UNCORE events  */
      /* Adding them will fail currently */
      if ( Intel_i7 || ( hwinfo->vendor == PAPI_VENDOR_INTEL ) ) {
         if ( !strncmp( info.symbol, "UNC_", 4 ) ) {
        unc_count++;
        continue;
         }
         if ( !strncmp( info.symbol, "OFFCORE_RESPONSE_0", 18 ) ) {
        offcore_count++;
        continue;
         }
      }

      /* Enumerate all umasks */
      k = i;
      if ( PAPI_enum_cmp_event(&k, PAPI_NTV_ENUM_UMASKS, cid )==PAPI_OK ) {
         do {
        retval = PAPI_get_event_info( k, &info1 );
        event_code = ( int ) info1.event_code;
        if ( check_event( event_code, info1.symbol ) ) {
           add_count++;
        }
        else {
           err_count++;
        }
         } while ( PAPI_enum_cmp_event( &k, PAPI_NTV_ENUM_UMASKS, cid ) == PAPI_OK );
      } else {
        /* Event didn't have any umasks */
        event_code = ( int ) info.event_code;
        if ( check_event( event_code, info.symbol ) ) {
           add_count++;
        }
        else {
           err_count++;
        }
      }
      
       } while ( PAPI_enum_cmp_event( &i, PAPI_ENUM_EVENTS, cid ) == PAPI_OK );

    }
    printf( "\n\nSuccessfully found and added %d events "
            "(in %d eventsets).\n",
        add_count , add_count);

    if ( err_count ) {
       printf( "Failed to add %d events.\n", err_count );
    }

    if (( unc_count ) || (offcore_count)) {
       char warning[BUFSIZ];
       sprintf(warning,"%d Uncore and %d Offcore events were ignored",
           unc_count,offcore_count);
       test_warn( __FILE__, __LINE__, warning, 1 );
    }

    if ( add_count > 0 ) {
       test_pass( __FILE__, NULL, 0 );
    }
    else {
       test_fail( __FILE__, __LINE__, "No events added", 1 );
    }

    exit( 1 );
}