MueLu_MatlabSmoother_decl.hpp

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// @HEADER
// *****************************************************************************
//        MueLu: A package for multigrid based preconditioning
//
// Copyright 2012 NTESS and the MueLu contributors.
// SPDX-License-Identifier: BSD-3-Clause
// *****************************************************************************
// @HEADER

#ifndef MUELU_MATLABSMOOTHER_DECL_HPP
#define MUELU_MATLABSMOOTHER_DECL_HPP

#include <Teuchos_ParameterList.hpp>
#include <Xpetra_Matrix_fwd.hpp>
#include "MueLu_ConfigDefs.hpp"

#if defined(HAVE_MUELU_MATLAB)
#include <Tpetra_CrsMatrix.hpp>
#include "MueLu_SmootherPrototype.hpp"
#include "MueLu_MatlabSmoother_fwd.hpp"
#include "MueLu_MatlabUtils_decl.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 MatlabSmoother : public SmootherPrototype<Scalar, LocalOrdinal, GlobalOrdinal, Node> {
#undef MUELU_MATLABSMOOTHER_SHORT
#include "MueLu_UseShortNames.hpp"

 public:

  // TODO: update doc for Matlab.
#ifndef _MSC_VER
  // Avoid error C3772: invalid friend template declaration
  template <class Scalar2, class LocalOrdinal2, class GlobalOrdinal2, class Node2>
  friend class MatlabSmoother;
#endif

  MatlabSmoother(const Teuchos::ParameterList& paramList = Teuchos::ParameterList());

  virtual ~MatlabSmoother() {}


  void SetParameterList(const Teuchos::ParameterList& paramList);



  void DeclareInput(Level& currentLevel) const;




  void Setup(Level& currentLevel);

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




  RCP<SmootherPrototype> Copy() const;


  template <typename Node2>
  RCP<MueLu::MatlabSmoother<Scalar, LocalOrdinal, GlobalOrdinal, Node2> >
  clone(const RCP<Node2>& node2, const Teuchos::RCP<const Xpetra::Matrix<Scalar, LocalOrdinal, GlobalOrdinal, Node2> >& A_newnode) const;



  std::string description() const;

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

  size_t getNodeSmootherComplexity() const { return Teuchos::OrdinalTraits<size_t>::invalid(); }


 private:
  mutable std::string needsSetup_;

  size_t solveDataSize_;

  std::vector<Teuchos::RCP<MuemexArg> > solveData_;

  std::string setupFunction_;

  std::string solveFunction_;

  mutable RCP<Matrix> A_;

};  // class MatlabSmoother

template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
template <typename Node2>
RCP<MueLu::MatlabSmoother<Scalar, LocalOrdinal, GlobalOrdinal, Node2> >
MatlabSmoother<Scalar, LocalOrdinal, GlobalOrdinal, Node>::clone(const RCP<Node2>& node2, const RCP<const Xpetra::Matrix<Scalar, LocalOrdinal, GlobalOrdinal, Node2> >& A_newnode) const {
  const ParameterList& paramList = this->GetParameterList();

  RCP<MatlabSmoother<Scalar, LocalOrdinal, GlobalOrdinal, Node2> > cloneSmoother =
      rcp(new MatlabSmoother<Scalar, LocalOrdinal, GlobalOrdinal, Node2>(paramList));

  cloneSmoother->needsSetup_    = needsSetup_;
  cloneSmoother->setupFunction_ = setupFunction_;
  cloneSmoother->solveFunction_ = solveFunction_;
  cloneSmoother->A_             = A_;

  for (size_t i = 0; i < solveData_.size(); i++)
    cloneSmoother->solveData_->push_back(solveData_[i]);
  cloneSmoother->SetParameterList(paramList);
  cloneSmoother->IsSetup(this->IsSetup());
  return cloneSmoother;
}

}  // namespace MueLu

#define MUELU_MATLABSMOOTHER_SHORT
#endif  // HAVE_MUELU_MATLAB
#endif  // MUELU_MATLABSMOOTHER_DECL_HPP