earprofile.c

Go to the documentation of this file.

/*
* File:    profile.c
* Author:  Philip Mucci
*          mucci@cs.utk.edu
* Mods:    Dan Terpstra
*          terpstra@cs.utk.edu
*/
 
/* This file performs the following test: profiling and program info option call
 
   - This tests the SVR4 profiling interface of PAPI. These are counted
   in the default counting domain and default granularity, depending on
   the platform. Usually this is the user domain (PAPI_DOM_USER) and
   thread context (PAPI_GRN_THR).
 
     The Eventset contains:
     + PAPI_FP_INS (to profile)
     + PAPI_TOT_CYC
 
   - Set up profile
   - Start eventset 1
   - Do both (flops and reads)
   - Stop eventset 1
*/
 
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
 
#include "papi.h"
#include "papi_test.h"
#include "prof_utils.h"
 
#include "do_loops.h"
 
#undef THRESHOLD
#define THRESHOLD 1000
 
static void
ear_no_profile( void )
{
    int retval;
 
    if ( ( retval = PAPI_start( EventSet ) ) != PAPI_OK )
        test_fail( __FILE__, __LINE__, "PAPI_start", retval );
 
    do_l1misses( 10000 );
 
    if ( ( retval = PAPI_stop( EventSet, values[0] ) ) != PAPI_OK )
        test_fail( __FILE__, __LINE__, "PAPI_stop", retval );
 
    printf( "Test type   : \tNo profiling\n" );
    printf( TAB1, event_name, ( values[0] )[0] );
    printf( TAB1, "PAPI_TOT_CYC:", ( values[0] )[1] );
}
 
static int
do_profile( vptr_t start, unsigned long plength, unsigned scale, int thresh,
            int bucket )
{
    int i, retval;
    unsigned long blength;
    int num_buckets;
    const char *profstr[2] = { "PAPI_PROFIL_POSIX", "PAPI_PROFIL_INST_EAR" };
    int profflags[2] =
        { PAPI_PROFIL_POSIX, PAPI_PROFIL_POSIX | PAPI_PROFIL_INST_EAR };
    int num_profs;
 
    do_stuff(  );
 
    num_profs = sizeof ( profflags ) / sizeof ( int );
    ear_no_profile(  );
    blength = prof_size( plength, scale, bucket, &num_buckets );
    prof_alloc( num_profs, blength );
 
    for ( i = 0; i < num_profs; i++ ) {
        if ( !TESTS_QUIET )
            printf( "Test type   : \t%s\n", profstr[i] );
 
        if ( ( retval = PAPI_profil( profbuf[i], blength, start, scale,
                                     EventSet, PAPI_event, thresh,
                                     profflags[i] | bucket ) ) != PAPI_OK ) {
            test_fail( __FILE__, __LINE__, "PAPI_profil", retval );
        }
        if ( ( retval = PAPI_start( EventSet ) ) != PAPI_OK )
            test_fail( __FILE__, __LINE__, "PAPI_start", retval );
 
        do_stuff(  );
 
        if ( ( retval = PAPI_stop( EventSet, values[1] ) ) != PAPI_OK )
            test_fail( __FILE__, __LINE__, "PAPI_stop", retval );
 
        if ( !TESTS_QUIET ) {
            printf( TAB1, event_name, ( values[1] )[0] );
            printf( TAB1, "PAPI_TOT_CYC:", ( values[1] )[1] );
        }
        if ( ( retval = PAPI_profil( profbuf[i], blength, start, scale,
                                     EventSet, PAPI_event, 0,
                                     profflags[i] ) ) != PAPI_OK )
            test_fail( __FILE__, __LINE__, "PAPI_profil", retval );
    }
 
    prof_head( blength, bucket, num_buckets,
               "address\t\t\tPOSIX\tINST_DEAR\n" );
    prof_out( start, num_profs, bucket, num_buckets, scale );
 
    retval = prof_check( num_profs, bucket, num_buckets );
 
    for ( i = 0; i < num_profs; i++ ) {
        free( profbuf[i] );
    }
 
    return retval;
}
 
 
int
main( int argc, char **argv )
{
    int num_events, num_tests = 6;
    long length;
    int retval, retval2;
    const PAPI_hw_info_t *hw_info;
    const PAPI_exe_info_t *prginfo;
    vptr_t start, end;
    int quiet;
 
    /* Set TESTS_QUIET variable */
    quiet = tests_quiet( argc, argv );
 
    retval = PAPI_library_init( PAPI_VER_CURRENT );
    if (retval != PAPI_VER_CURRENT ) {
        test_fail( __FILE__, __LINE__, "PAPI_library_init", retval );
    }
 
    if ( ( prginfo = PAPI_get_executable_info(  ) ) == NULL ) {
        test_fail( __FILE__, __LINE__, "PAPI_get_executable_info", 1 );
    }
 
    if ( ( hw_info = PAPI_get_hardware_info(  ) ) == NULL ) {
        test_fail( __FILE__, __LINE__, "PAPI_get_hardware_info", 0 );
    }
 
    if ( ( strncasecmp( hw_info->model_string, "Itanium",
                strlen( "Itanium" ) ) != 0 ) &&
            ( strncasecmp( hw_info->model_string, "32",
                strlen( "32" ) ) != 0 ) ) {
        if (!quiet) printf("Itanium only for now.\n");
        test_skip( __FILE__, __LINE__, "Test unsupported", PAPI_ENOIMPL );
    }
 
//  if ( quiet ) {
//     test_skip( __FILE__, __LINE__,
//           "Test deprecated in quiet mode for PAPI 3.6", 0 );
//  }
 
    sprintf( event_name, "DATA_EAR_CACHE_LAT4" );
    if ( ( retval =
           PAPI_event_name_to_code( event_name, &PAPI_event ) ) != PAPI_OK )
        test_fail( __FILE__, __LINE__, "PAPI_event_name_to_code", retval );
 
    if ( ( retval = PAPI_create_eventset( &EventSet ) ) != PAPI_OK )
        test_fail( __FILE__, __LINE__, "PAPI_create_eventset", retval );
 
    if ( ( retval = PAPI_add_event( EventSet, PAPI_event ) ) != PAPI_OK )
        test_fail( __FILE__, __LINE__, "PAPI_add_event", retval );
 
    if ( ( retval = PAPI_add_event( EventSet, PAPI_TOT_CYC ) ) != PAPI_OK )
        test_fail( __FILE__, __LINE__, "PAPI_add_event", retval );
 
    num_events = 2;
    values = allocate_test_space( num_tests, num_events );
 
    /* use these lines to profile entire code address space */
    start = prginfo->address_info.text_start;
    end = prginfo->address_info.text_end;
    length = end - start;
    if ( length < 0 )
        test_fail( __FILE__, __LINE__, "Profile length < 0!", length );
 
    prof_print_address
        ( "Test earprofile: POSIX compatible event address register profiling.\n",
          prginfo );
    prof_print_prof_info( start, end, THRESHOLD, event_name );
    retval =
        do_profile( start, length, FULL_SCALE, THRESHOLD,
                    PAPI_PROFIL_BUCKET_16 );
 
    retval2 = PAPI_remove_event( EventSet, PAPI_event );
    if ( retval2 == PAPI_OK )
        retval2 = PAPI_remove_event( EventSet, PAPI_TOT_CYC );
    if ( retval2 != PAPI_OK )
        test_fail( __FILE__, __LINE__, "Can't remove events", retval2 );
 
    if ( retval )
        test_pass( __FILE__ );
    else
        test_fail( __FILE__, __LINE__, "No information in buffers", 1 );
 
    return 1;
 
}