MueLu_SimpleSmoother_decl.hpp

Go to the documentation of this file.

// @HEADER
//
// ***********************************************************************
//
//        MueLu: A package for multigrid based preconditioning
//                  Copyright 2012 Sandia Corporation
//
// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
// the U.S. Government retains certain rights in this software.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// 1. Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// 3. Neither the name of the Corporation nor the names of the
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SANDIA CORPORATION OR THE
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Questions? Contact
//                    Jonathan Hu       (jhu@sandia.gov)
//                    Andrey Prokopenko (aprokop@sandia.gov)
//                    Ray Tuminaro      (rstumin@sandia.gov)
//
// ***********************************************************************
//
// @HEADER
/*
 * MueLu_SimpleSmoother_decl.hpp
 *
 *  Created on: 19.03.2013
 *      Author: wiesner
 */

#ifndef MUELU_SIMPLESMOOTHER_DECL_HPP_
#define MUELU_SIMPLESMOOTHER_DECL_HPP_


#include "MueLu_ConfigDefs.hpp"

#include <Teuchos_ParameterList.hpp>

//Xpetra
#include <Xpetra_MapExtractor_fwd.hpp>
#include <Xpetra_MultiVectorFactory_fwd.hpp>
#include <Xpetra_CrsMatrixWrap_fwd.hpp>
#include <Xpetra_Matrix_fwd.hpp>

//MueLu
#include "MueLu_SimpleSmoother_fwd.hpp"
#include "MueLu_SmootherPrototype.hpp"
#include "MueLu_FactoryBase_fwd.hpp"
#include "MueLu_FactoryManagerBase_fwd.hpp"
#include "MueLu_SmootherBase_fwd.hpp"
#include "MueLu_SubBlockAFactory_fwd.hpp"
#include "MueLu_Utilities_fwd.hpp"

#include "MueLu_SchurComplementFactory_fwd.hpp"
#include "MueLu_DirectSolver_fwd.hpp"
#include "MueLu_SmootherFactory_fwd.hpp"
#include "MueLu_FactoryManager_fwd.hpp"

namespace MueLu {

  template <class Scalar = SmootherPrototype<>::scalar_type,
            class LocalOrdinal = typename SmootherPrototype<Scalar>::local_ordinal_type,
            class GlobalOrdinal = typename SmootherPrototype<Scalar, LocalOrdinal>::global_ordinal_type,
            class Node = typename SmootherPrototype<Scalar, LocalOrdinal, GlobalOrdinal>::node_type>
  class SimpleSmoother : public SmootherPrototype<Scalar,LocalOrdinal,GlobalOrdinal,Node>
  {
    typedef Xpetra::MapExtractor<Scalar, LocalOrdinal, GlobalOrdinal, Node> MapExtractorClass;

#undef MUELU_SIMPLESMOOTHER_SHORT
#include "MueLu_UseShortNames.hpp"

  public:



    SimpleSmoother();

    virtual ~SimpleSmoother();



    RCP<const ParameterList> GetValidParameterList() const;

    void DeclareInput(Level &currentLevel) const;

    void SetVelocityPredictionFactoryManager(RCP<FactoryManager> FactManager);

    void SetSchurCompFactoryManager(RCP<FactoryManager> FactManager);

    void AddFactoryManager(RCP<const FactoryManagerBase> FactManager, int pos);




    void Setup(Level &currentLevel);

    void Apply(MultiVector &X, MultiVector const &B, bool InitialGuessIsZero = false) const;

    RCP<SmootherPrototype> Copy() const;



    std::string description() const;

    //using MueLu::Describable::describe; // overloading, not hiding
    void print(Teuchos::FancyOStream &out, const VerbLevel verbLevel = Default) const;
    
    size_t getNodeSmootherComplexity() const;


  private:

    std::string type_;

    RCP<const FactoryBase>                AFact_;           

    RCP<Matrix>                         A_;               // < ! internal blocked operator "A" generated by AFact_

    RCP<const MapExtractorClass>          rangeMapExtractor_;  
    RCP<const MapExtractorClass>          domainMapExtractor_; 

    Teuchos::RCP<Vector>                  diagFinv_;                      
    Teuchos::RCP<Matrix>                F_;                             
    Teuchos::RCP<Matrix>                G_;                             
    Teuchos::RCP<Matrix>                D_;                             
    Teuchos::RCP<Matrix>                Z_;                             

    Teuchos::RCP<SmootherBase>            velPredictSmoo_;              
    Teuchos::RCP<SmootherBase>            schurCompSmoo_;               


    std::vector<Teuchos::RCP<const FactoryManagerBase> > FactManager_;

  }; // class Amesos2Smoother

} // namespace MueLu

#define MUELU_SIMPLESMOOTHER_SHORT

#endif /* MUELU_SIMPLESMOOTHER_DECL_HPP_ */