MueLu_RAPShiftFactory_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_RAPSHIFTFACTORY_DECL_HPP
#define MUELU_RAPSHIFTFACTORY_DECL_HPP

#include <string>

#include <Xpetra_Matrix_fwd.hpp>
#include <Xpetra_CrsMatrix_fwd.hpp>
#include <Xpetra_MatrixFactory_fwd.hpp>
#include <Xpetra_Vector_fwd.hpp>
#include <Xpetra_VectorFactory_fwd.hpp>

#include "MueLu_ConfigDefs.hpp"
#include "MueLu_RAPShiftFactory_fwd.hpp"

#include "MueLu_FactoryBase_fwd.hpp"
#include "MueLu_Level_fwd.hpp"
#include "MueLu_PerfUtils_fwd.hpp"
#include "MueLu_TwoLevelFactoryBase.hpp"
#include "MueLu_Utilities_fwd.hpp"

namespace MueLu {
  template <class Scalar = double, class LocalOrdinal = int, class GlobalOrdinal = LocalOrdinal, class Node = KokkosClassic::DefaultNode::DefaultNodeType>
  class RAPShiftFactory : public TwoLevelFactoryBase {
#undef MUELU_RAPSHIFTFACTORY_SHORT
#include "MueLu_UseShortNames.hpp"

  public:


    RAPShiftFactory();

    virtual ~RAPShiftFactory() { }




    RCP<const ParameterList> GetValidParameterList() const;

    void DeclareInput(Level &fineLevel, Level &coarseLevel) const;



    void Build(Level &fineLevel, Level &coarseLevel) const;



    void SetImplicitTranspose(bool const &implicit) {
      implicitTranspose_ = implicit;
    }

    void SetShifts(std::vector<Scalar>& shifts) {
      shifts_.clear();
      shifts_ = shifts;
    }



    void AddTransferFactory(const RCP<const FactoryBase>& factory);

    // TODO add a function to remove a specific transfer factory?

    size_t NumTransferFactories() const { return transferFacts_.size(); }


  private:

    bool implicitTranspose_;


    std::vector<RCP<const FactoryBase> > transferFacts_;

    // vector of shifting terms
    std::vector<Scalar> shifts_;

  }; //class RAPShiftFactory

} //namespace MueLu

#define MUELU_RAPSHIFTFACTORY_SHORT
#endif // MUELU_RAPSHIFTFACTORY_DECL_HPP