MueLu_PgPFactory_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_PGPFACTORY_DECL_HPP_
#define MUELU_PGPFACTORY_DECL_HPP_

#include <Xpetra_Vector_fwd.hpp>
#include <Xpetra_VectorFactory_fwd.hpp>
#include <Xpetra_Matrix_fwd.hpp>
#include <Xpetra_Import_fwd.hpp>
#include <Xpetra_ImportFactory_fwd.hpp>
#include <Xpetra_Export_fwd.hpp>
#include <Xpetra_ExportFactory_fwd.hpp>

#include "MueLu_ConfigDefs.hpp"

#include "MueLu_PerfUtils_fwd.hpp"
#include "MueLu_PFactory.hpp"
#include "MueLu_SingleLevelFactoryBase_fwd.hpp"
#include "MueLu_TentativePFactory_fwd.hpp"
#include "MueLu_Utilities_fwd.hpp"

namespace MueLu {

  /* Options defining how to pick-up the next root node in the local aggregation procedure */
  enum MinimizationNorm {
    ANORM = 0, /* A norm   */
    L2NORM = 1, /* L2 norm */
    DINVANORM  = 2 /* Dinv A norm */
  };

  template <class Scalar = double, class LocalOrdinal = int, class GlobalOrdinal = LocalOrdinal, class Node = KokkosClassic::DefaultNode::DefaultNodeType>
  class PgPFactory : public PFactory {
#undef MUELU_PGPFACTORY_SHORT
#include "MueLu_UseShortNames.hpp"

  public:



    PgPFactory() { }

    virtual ~PgPFactory() { }




    RCP<const ParameterList> GetValidParameterList() const;

    void SetMinimizationMode(MinimizationNorm minnorm);

    MinimizationNorm GetMinimizationMode();



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



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

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


    void ReUseDampingParameters(bool bReuse);

  private:

    void MultiplySelfAll(const RCP<Matrix>& Op, Teuchos::RCP<Xpetra::Vector<Scalar,LocalOrdinal,GlobalOrdinal,Node> >& InnerProdVec) const;

    void MultiplyAll(const RCP<Matrix>& left, const RCP<Matrix>& right, Teuchos::RCP<Xpetra::Vector<Scalar,LocalOrdinal,GlobalOrdinal,Node> >& InnerProdVec) const;

    void ComputeRowBasedOmega(Level& fineLevel, Level& coarseLevel, const RCP<Matrix>& A, const RCP<Matrix>& P0, const RCP<Matrix>& DinvAP0, RCP<Xpetra::Vector<Scalar,LocalOrdinal,GlobalOrdinal,Node> > & RowBasedOmega) const;

  private:

    std::string diagonalView_; // TODO do we need this?
  };

} //namespace MueLu

#define MUELU_PGPFACTORY_SHORT
#endif /* MUELU_PGPFACTORY_DECL_HPP_ */