example_multiple_components.c

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/****************************/
/* THIS IS OPEN SOURCE CODE */
/****************************/

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "papi.h"
#include "papi_test.h"

#define NUM_EVENTS 1

int main (int argc, char **argv)
{

        int retval;
    int EventSet1 = PAPI_NULL, EventSet2 = PAPI_NULL;
    long long values1[NUM_EVENTS];
    long long values2[NUM_EVENTS];
    const PAPI_component_info_t *cmpinfo = NULL;
    int numcmp,cid,example_cid=-1;
    int code;
    int quiet=0;

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

    /* PAPI Initialization */
    retval = PAPI_library_init( PAPI_VER_CURRENT );
    if ( retval != PAPI_VER_CURRENT ) {
       test_fail(__FILE__, __LINE__,"PAPI_library_init failed\n",retval);
    }

    if (!quiet) {
       printf( "Testing simultaneous component use with PAPI %d.%d.%d\n",
            PAPI_VERSION_MAJOR( PAPI_VERSION ),
            PAPI_VERSION_MINOR( PAPI_VERSION ),
            PAPI_VERSION_REVISION( PAPI_VERSION ) );
    }

    /* Find our component */

    numcmp = PAPI_num_components();
    for( cid=0; cid<numcmp; cid++) {
       if ( (cmpinfo = PAPI_get_component_info(cid)) == NULL) {
          test_fail(__FILE__, __LINE__,
                           "PAPI_get_component_info failed\n", 0);
       }
       if (!quiet) {
          printf("\tComponent %d - %d events - %s\n", cid,
             cmpinfo->num_native_events,
             cmpinfo->name);
       }
       if (strstr(cmpinfo->name,"example")) {
          /* FOUND! */
          example_cid=cid;
       }
    }


    if (example_cid<0) {
       test_skip(__FILE__, __LINE__,
             "Example component not found\n", 0);
    }

    if (!quiet) {
      printf("\nFound Example Component at id %d\n",example_cid);
    }


    /* Create an eventset for the Example component */

    retval = PAPI_create_eventset( &EventSet1 );
    if ( retval != PAPI_OK ) {
       test_fail( __FILE__, __LINE__,
              "PAPI_create_eventset() failed\n", retval );
    }

    retval = PAPI_event_name_to_code("EXAMPLE_CONSTANT", &code);
    if ( retval != PAPI_OK ) {
       test_fail( __FILE__, __LINE__,
              "EXAMPLE_ZERO not found\n",retval );
    }

    retval = PAPI_add_event( EventSet1, code);
    if ( retval != PAPI_OK ) {
       test_fail( __FILE__, __LINE__,
              "PAPI_add_events failed\n", retval );
    }


    /* Create an eventset for the CPU component */

    retval = PAPI_create_eventset( &EventSet2 );
    if ( retval != PAPI_OK ) {
       test_fail( __FILE__, __LINE__,
              "PAPI_create_eventset() failed\n", retval );
    }

    retval = PAPI_event_name_to_code("PAPI_TOT_CYC", &code);
    if ( retval != PAPI_OK ) {
      test_skip( __FILE__, __LINE__,
              "PAPI_TOT_CYC not available\n",retval );
    }

    retval = PAPI_add_event( EventSet2, code);
    if ( retval != PAPI_OK ) {
       test_skip( __FILE__, __LINE__,
              "NO CPU component found\n", retval );
    }

    if (!quiet) printf("\nStarting EXAMPLE_CONSTANT and PAPI_TOT_CYC at the same time\n");

    /* Start CPU component event */
    retval = PAPI_start( EventSet2 );
    if ( retval != PAPI_OK ) {
       test_fail( __FILE__, __LINE__,
              "PAPI_start failed\n",retval );
    }

    /* Start example component */
    retval = PAPI_start( EventSet1 );
    if ( retval != PAPI_OK ) {
       test_fail( __FILE__, __LINE__,
              "PAPI_start failed\n",retval );
    }




    /* Stop example component */
    retval = PAPI_stop( EventSet1, values1 );
    if ( retval != PAPI_OK ) {
       test_fail(  __FILE__, __LINE__, "PAPI_stop failed\n", retval);
    }

    /* Stop CPU component */
    retval = PAPI_stop( EventSet2, values2 );
    if ( retval != PAPI_OK ) {
       test_fail(  __FILE__, __LINE__, "PAPI_stop failed\n", retval);
    }

    if (!quiet) printf("Stopping EXAMPLE_CONSTANT and PAPI_TOT_CYC\n\n");


    if (!quiet) printf("Results from EXAMPLE_CONSTANT: %lld\n",values1[0]);

    if (values1[0]!=42) {
       test_fail(  __FILE__, __LINE__, "Result should be 42!\n", 0);
    }

    if (!quiet) printf("Results from PAPI_TOT_CYC: %lld\n\n",values2[0]);

    if (values2[0]<1) {
       test_fail(  __FILE__, __LINE__, "Result should greater than 0\n", 0);
    }

    /* Cleanup EventSets */
    retval = PAPI_cleanup_eventset(EventSet1);
    if (retval != PAPI_OK) {
       test_fail(  __FILE__, __LINE__, "PAPI_cleanup_eventset!\n", retval);
    }

    retval = PAPI_cleanup_eventset(EventSet2);
    if (retval != PAPI_OK) {
       test_fail(  __FILE__, __LINE__, "PAPI_cleanup_eventset!\n", retval);
    }

    /* Destroy EventSets */
    retval = PAPI_destroy_eventset(&EventSet2);
    if (retval != PAPI_OK) {
       test_fail(  __FILE__, __LINE__, "PAPI_destroy_eventset!\n", retval);
    }

    test_pass( __FILE__ );

    return 0;
}