lifev/structure/testsuite/time_advance_i/main.cpp

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//@HEADER
/*
*******************************************************************************

    Copyright (C) 2004, 2005, 2007 EPFL, Politecnico di Milano, INRIA
    Copyright (C) 2010 EPFL, Politecnico di Milano, Emory University

    This file is part of LifeV.

    LifeV is free software; you can redistribute it and/or modify
    it under the terms of the GNU Lesser General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    LifeV is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public License
    along with LifeV.  If not, see <http://www.gnu.org/licenses/>.

*******************************************************************************
*/
//@HEADER
/* ========================================================

Solve the problem

              \frac{\partial u}{\partial t} - \Delta u = f

               u = u0 on the boundary

linear_function.hpp:

  uexact = exp(-sin(Pi/2*t))*(x+y+z);

  f = (3 \pi^2 + 1 )  exp(-t)  sin( \pi x) sin(\pi y) sin ( \pi z) on a cube

nonlinear_function.hpp:

   uexact = exp(-sin(Pi/2*t))*cos(x *Pi)*cos(y*Pi)*cos(z*Pi);

   f = Pi2/4*( sin(Pi/2*t)+cos(Pi/2*t)*cos(Pi/2*t) )*exp(-sin(Pi/2*t))*cos(x *Pi)*cos(y*Pi)*cos(z*Pi);

  Author(s):  F. Nobile     <fabio.nobile@polimi.it>
              M. Pozzoli    <matteo1.pozzoli@mail.polimi.it>
              C. Vergara    <christian.vergara@polimi.it>
       Date: 2010-02-15
*/
/**
  \file timeAdvance.hpp
  \author F. Nobile, M. Pozzoli, C. Vergara
  \date 2010-02-15
*/


// ===================================================
//! Includes
// ===================================================

#include <Epetra_ConfigDefs.h>
#ifdef EPETRA_MPI
#include <mpi.h>
#include <Epetra_MpiComm.h>
#else
#include <Epetra_SerialComm.h>
#endif


#include <lifev/core/LifeV.hpp>

#include <lifev/core/algorithm/PreconditionerIfpack.hpp>
#include <lifev/core/algorithm/PreconditionerML.hpp>

#include "timeAdvance.hpp"

// ===================================================
//! Program information
// ===================================================

// ===================================================
//! Namespaces
// ===================================================
using namespace LifeV;

namespace
{
static bool regIF = (PRECFactory::instance().registerProduct ( "Ifpack", &createIfpack ) );
static bool regML = (PRECFactory::instance().registerProduct ( "ML", &createML ) );
}


// ===================================================
//! Main
// ===================================================
int
main ( int argc, char** argv )
{
#ifdef HAVE_MPI
    MPI_Init (&argc, &argv);

    std::shared_ptr<Epetra_MpiComm> Comm (new Epetra_MpiComm ( MPI_COMM_WORLD ) );
    if ( Comm->MyPID() == 0 )
    {
        std::cout << "% using MPI" << std::endl;
    }
#else
    std::shared_ptr<Epetra_SerialComm> Comm ( new Epetra_SerialComm() );
    std::cout << "% using serial Version" << std::endl;
#endif


    problem ProblemOrderI ( argc, argv, Comm );
    ProblemOrderI.run();


#ifdef HAVE_MPI
    MPI_Finalize();
    std::cout << "MPI Finalization" << std::endl;
#endif

    return ( EXIT_SUCCESS );
}