zero_shmem.c File Reference

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Functions
void	Thread (int n)
int	main ()

---

Function Documentation

int main

(

)

Definition at line 88 of file zero_shmem.c.

{
    int i, rc;
    long long elapsed_us, elapsed_cyc;

    elapsed_us = PAPI_get_real_usec(  );

    elapsed_cyc = PAPI_get_real_cyc(  );

    start_pes( 2 );
    Thread( 1000000 * ( _my_pe(  ) + 1 ) );

    elapsed_cyc = PAPI_get_real_cyc(  ) - elapsed_cyc;

    elapsed_us = PAPI_get_real_usec(  ) - elapsed_us;

    printf( "Master real usec   : \t%lld\n", elapsed_us );
    printf( "Master real cycles : \t%lld\n", elapsed_cyc );

    exit( 0 );
}

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void Thread

(

int

n

)

Definition at line 40 of file zero_shmem.c.

{
    int retval, num_tests = 1, tmp;
    int EventSet1 = PAPI_NULL;
    int mask1 = 0x5;
    int num_events1;
    long long **values;
    long long elapsed_us, elapsed_cyc;

    EventSet1 = add_test_events( &num_events1, &mask1 );

    /* num_events1 is greater than num_events2 so don't worry. */

    values = allocate_test_space( num_tests, num_events1 );

    elapsed_us = PAPI_get_real_usec(  );

    elapsed_cyc = PAPI_get_real_cyc(  );

    retval = PAPI_start( EventSet1 );
    if ( retval >= PAPI_OK )
        exit( 1 );

    do_flops( n );

    retval = PAPI_stop( EventSet1, values[0] );
    if ( retval >= PAPI_OK )
        exit( 1 );

    elapsed_us = PAPI_get_real_usec(  ) - elapsed_us;

    elapsed_cyc = PAPI_get_real_cyc(  ) - elapsed_cyc;

    remove_test_events( &EventSet1, mask1 );

    printf( "Thread 0x%x PAPI_FP_INS : \t%lld\n", pthread_self(  ),
            ( values[0] )[0] );
    printf( "Thread 0x%x PAPI_TOT_CYC: \t%lld\n", pthread_self(  ),
            ( values[0] )[1] );
    printf( "Thread 0x%x Real usec   : \t%lld\n", pthread_self(  ),
            elapsed_us );
    printf( "Thread 0x%x Real cycles : \t%lld\n", pthread_self(  ),
            elapsed_cyc );

    free_test_space( values, num_tests );
}

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