/** file clockres.c

  *

  * @page papi_clockres

  * @brief The papi_clockres utility.

  *	@section Name

  * papi_clockres - measures and reports clock latency and resolution for PAPI timers. 

  *

  * @section Synopsis

  *	@section Description

  *	papi_clockres is a PAPI utility program that measures and reports the

  *	latency and resolution of the four PAPI timer functions:

  *	PAPI_get_real_cyc(), PAPI_get_virt_cyc(), PAPI_get_real_usec() and PAPI_get_virt_usec().

  *

  *	@section Options

  *		This utility has no command line options.

  *

  *	@section Bugs

  *	There are no known bugs in this utility.

  *	If you find a bug, it should be reported to the PAPI Mailing List at <ptools-perfapi@icl.utk.edu>.

  *

  */

#include <stdio.h>

#include <stdlib.h>

#include "papi.h"

#include "../testlib/clockcore.h"

int

main( int argc, char **argv )

{

	(void) argc;

	(void) argv;

	int retval;

	retval = PAPI_library_init( PAPI_VER_CURRENT );

	if (retval != PAPI_VER_CURRENT ) {

		fprintf(stderr,"Error with PAPI init!\n");

		return 1;

	}

	retval = PAPI_set_debug( PAPI_VERB_ECONT );

	if (retval != PAPI_OK ) {

		fprintf(stderr,"Error with PAPI_set_debug!\n");

		return 1;

	}

	printf( "Printing Clock latency and resolution.\n" );

	printf( "-----------------------------------------------\n" );

	retval=clockcore( 0 );

	if (retval<0) {

		fprintf(stderr,"Error reading clock!\n");

		return retval;

	}

	return 0;

}