/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil ; -*- */

/*

 *

 *  (C) 2001 by Argonne National Laboratory.

 *      See COPYRIGHT in top-level directory.

 */

#include "mpiimpl.h"

/* -- Begin Profiling Symbol Block for routine MPI_Wtick */

#if defined(HAVE_PRAGMA_WEAK)

#pragma weak MPI_Wtick = PMPI_Wtick

#elif defined(HAVE_PRAGMA_HP_SEC_DEF)

#pragma _HP_SECONDARY_DEF PMPI_Wtick  MPI_Wtick

#elif defined(HAVE_PRAGMA_CRI_DUP)

#pragma _CRI duplicate MPI_Wtick as PMPI_Wtick

#elif defined(HAVE_WEAK_ATTRIBUTE)

double MPI_Wtick(void) __attribute__ ((weak, alias("PMPI_Wtick")));

#endif

/* -- End Profiling Symbol Block */

/* Define MPICH_MPI_FROM_PMPI if weak symbols are not supported to build

   the MPI routines */

#ifndef MPICH_MPI_FROM_PMPI

#undef MPI_Wtick

#define MPI_Wtick PMPI_Wtick

#endif

#undef FUNCNAME

#define FUNCNAME MPI_Wtick

/*@

  MPI_Wtick - Returns the resolution of MPI_Wtime

  Return value:

  Time in seconds of resolution of MPI_Wtime

  Notes for Fortran:

  This is a function, declared as 'DOUBLE PRECISION MPI_WTICK()' in Fortran.

.see also: MPI_Wtime, MPI_Comm_get_attr, MPI_Attr_get

@*/

double MPI_Wtick(void)

{

    double tick;

    MPIR_FUNC_TERSE_STATE_DECL(MPID_STATE_MPI_WTICK);

    MPIR_ERRTEST_INITIALIZED_ORDIE();

    MPIR_FUNC_TERSE_ENTER(MPID_STATE_MPI_WTICK);

    MPID_Wtick(&tick);

    MPIR_FUNC_TERSE_EXIT(MPID_STATE_MPI_WTICK);

    return tick;

}