PAPI (performance application programming) not working properly?
===

I downloaded version 4.4 off the site, built it in my own directory and tried writing a small main which kept giving me that num_counters was zero. I then looked at ctests and picked hwinfo.c, and ripped out some of the code from it (and testlib) and threw it into a small main that looks like this:


    #include <stdio.h>
    #include <papi.h>
    
    int main(int argc, char** argv)
    {
    
        int retval, i, j;
        const PAPI_hw_info_t *hwinfo = NULL;
        const PAPI_mh_info_t *mh;
    
    
        retval = PAPI_library_init( PAPI_VER_CURRENT );
        if ( retval != PAPI_VER_CURRENT )
            cerr << "Failed at line " << __LINE__ << endl;
    
        retval =
            papi_print_header
            ( "Test case hwinfo.c: Check output of PAPI_get_hardware_info.\n",
              &hwinfo );
        if ( retval != PAPI_OK )
            cerr << "Failed at line " << __LINE__ << endl;
    }

I built this using the following:

    g++ main.cpp -I/home/pchan/rabbit/papi/include /home/pchan/rabbit/papi/lib/libpapi.a

and ran it with:

    ./a.out

only to witness this output:

Test case hwinfo.c: Check output of PAPI_get_hardware_info.

    --------------------------------------------------------------------------------
    PAPI Version             : 4.4.0.0
    Vendor string and code   :  (0)
    Model string and code    :  (0)
    CPU Revision             : 0.000000
    CPU Megahertz            : 0.000000
    CPU Clock Megahertz      : 0
    CPUs per Node            : 0
    Total CPUs               : 0
    Number Hardware Counters : 0
    Max Multiplex Counters   : 0
    --------------------------------------------------------------------------------


I'm a little lost on what is going on and why this isn't working...what is this symptomatic of and what can I try to fix it? My processor is Intel Xeon X5760 and my uname -a says:

    Linux chanbox 2.6.18-308.4.1.el5 #1 SMP Wed Mar 28 01:54:56 EDT 2012 x86_64 x86_64 x86_64 GNU/Linux

