MueLu_BraessSarazinSmoother_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
 
#ifndef MUELU_BRAESSSARAZINSMOOTHER_DECL_HPP_
#define MUELU_BRAESSSARAZINSMOOTHER_DECL_HPP_
#include "MueLu_ConfigDefs.hpp"
 
#include <Teuchos_ParameterList.hpp>
 
//Xpetra
#include <Xpetra_MapExtractor_fwd.hpp>
#include <Xpetra_MultiVectorFactory_fwd.hpp>
#include <Xpetra_Matrix_fwd.hpp>
 
//MueLu
#include "MueLu_BraessSarazinSmoother_fwd.hpp"
#include "MueLu_SmootherPrototype.hpp"
#include "MueLu_FactoryBase_fwd.hpp"
#include "MueLu_FactoryManagerBase_fwd.hpp"
#include "MueLu_SmootherBase_fwd.hpp"
#include "MueLu_Utilities_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 BraessSarazinSmoother : public SmootherPrototype<Scalar,LocalOrdinal,GlobalOrdinal,Node>
  {
#undef MUELU_BRAESSSARAZINSMOOTHER_SHORT
#include "MueLu_UseShortNames.hpp"
 
  public:


 
    RCP<const ParameterList> GetValidParameterList() const;
 
    void DeclareInput(Level &currentLevel) const;

    void AddFactoryManager(RCP<const FactoryManagerBase> FactManager, int pos = 0);




    void Setup(Level &currentLevel);

    void Apply(MultiVector& X, const MultiVector& B, bool InitialGuessIsZero = false) const;
 
    RCP<SmootherPrototype> Copy() const;



    std::string description() const;

    void print(Teuchos::FancyOStream &out, const VerbLevel verbLevel = Default) const;

    size_t getNodeSmootherComplexity() const;

 
  private:

    std::string type_ = "Braess Sarazin";
 
    RCP<const FactoryBase>              AFact_;               
    RCP<const FactoryManagerBase>       FactManager_;         

    RCP<Matrix>                         A_ = Teuchos::null;   // < ! internal blocked operator "A" generated by AFact_
 
    RCP<const MapExtractor>             rangeMapExtractor_;   
    RCP<const MapExtractor>             domainMapExtractor_;  

    RCP<Matrix>                         A00_;                 
    RCP<Matrix>                         A01_;                 
    RCP<Matrix>                         A10_;                 
    RCP<Matrix>                         A11_;                 
    RCP<Matrix>                         S_;                   
    RCP<Vector>                         D_;                   
 
    Teuchos::RCP<SmootherBase>          smoo_;                
 
  }; // class Amesos2Smoother
 
} // namespace MueLu
 
#define MUELU_BRAESSSARAZINSMOOTHER_SHORT
#endif /* MUELU_BRAESSSARAZINSMOOTHER_DECL_HPP_ */