MueLu_RefMaxwell_decl.hpp

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#ifndef MUELU_REFMAXWELL_DECL_HPP
#define MUELU_REFMAXWELL_DECL_HPP

#include "MueLu_ConfigDefs.hpp"
#include "MueLu_BaseClass.hpp"
#include "MueLu_ThresholdAFilterFactory_fwd.hpp"

#include "MueLu_CoalesceDropFactory_fwd.hpp"
#include "MueLu_CoarseMapFactory_fwd.hpp"
#include "MueLu_CoordinatesTransferFactory_fwd.hpp"
#include "MueLu_TentativePFactory_fwd.hpp"
#include "MueLu_UncoupledAggregationFactory_fwd.hpp"
#include "MueLu_Utilities_fwd.hpp"

#ifdef HAVE_MUELU_KOKKOS_REFACTOR
#include "MueLu_CoalesceDropFactory_kokkos_fwd.hpp"
#include "MueLu_CoarseMapFactory_kokkos_fwd.hpp"
#include "MueLu_CoordinatesTransferFactory_kokkos_fwd.hpp"
#include "MueLu_TentativePFactory_kokkos_fwd.hpp"
#include "MueLu_Utilities_kokkos_fwd.hpp"
#include "MueLu_UncoupledAggregationFactory_kokkos_fwd.hpp"
#endif

#include "MueLu_ZoltanInterface_fwd.hpp"
#include "MueLu_Zoltan2Interface_fwd.hpp"
#include "MueLu_RepartitionHeuristicFactory_fwd.hpp"
#include "MueLu_RepartitionFactory_fwd.hpp"
#include "MueLu_RebalanceAcFactory_fwd.hpp"
#include "MueLu_RebalanceTransferFactory_fwd.hpp"

#include "MueLu_SmootherFactory_fwd.hpp"
#include "MueLu_TrilinosSmoother.hpp"
#include "MueLu_Hierarchy.hpp"

#include "Xpetra_Map_fwd.hpp"
#include "Xpetra_Matrix_fwd.hpp"
#include "Xpetra_MatrixFactory_fwd.hpp"
#include "Xpetra_MultiVectorFactory_fwd.hpp"
#include "Xpetra_VectorFactory_fwd.hpp"
#include "Xpetra_CrsMatrixWrap_fwd.hpp"

#if defined(HAVE_MUELU_IFPACK2) && (!defined(HAVE_MUELU_EPETRA) || defined(HAVE_MUELU_INST_DOUBLE_INT_INT))
#include "Ifpack2_Preconditioner.hpp"
#include "Ifpack2_Hiptmair.hpp"
#endif

namespace MueLu {

  template <class Scalar,
            class LocalOrdinal,
            class GlobalOrdinal,
            class Node>
  class RefMaxwell : public VerboseObject, public Xpetra::Operator<Scalar,LocalOrdinal,GlobalOrdinal,Node> {

#undef MUELU_REFMAXWELL_SHORT
#include "MueLu_UseShortNames.hpp"

  public:

    typedef typename Teuchos::ScalarTraits<Scalar>::magnitudeType magnitudeType;
    typedef typename Xpetra::MultiVector<magnitudeType,LO,GO,NO> RealValuedMultiVector;

    RefMaxwell() :
      HierarchyH_(Teuchos::null),
      Hierarchy22_(Teuchos::null),
      disable_addon_(true),
      mode_("additive")
    {
    }

    RefMaxwell(Teuchos::RCP<Hierarchy> HH, Teuchos::RCP<Hierarchy> H22) :
      HierarchyH_(HH),
      Hierarchy22_(H22),
      disable_addon_(false),
      mode_("additive")
    {
    }

    RefMaxwell(const Teuchos::RCP<Matrix> & SM_Matrix,
               const Teuchos::RCP<Matrix> & D0_Matrix,
               const Teuchos::RCP<Matrix> & M0inv_Matrix,
               const Teuchos::RCP<Matrix> & M1_Matrix,
               const Teuchos::RCP<MultiVector> & Nullspace,
               const Teuchos::RCP<RealValuedMultiVector> & Coords,
               Teuchos::ParameterList& List,
               bool ComputePrec = true)
    {
      initialize(D0_Matrix,M0inv_Matrix,M1_Matrix,Nullspace,Coords,List);

      resetMatrix(SM_Matrix);

      // compute preconditioner (optionally)
      if(ComputePrec)
        compute();
    }

    RefMaxwell(const Teuchos::RCP<Matrix> & D0_Matrix,
               const Teuchos::RCP<Matrix> & M0inv_Matrix,
               const Teuchos::RCP<Matrix> & M1_Matrix,
               const Teuchos::RCP<MultiVector> & Nullspace,
               const Teuchos::RCP<RealValuedMultiVector> & Coords,
               Teuchos::ParameterList& List) : SM_Matrix_(Teuchos::null)
    {
      initialize(D0_Matrix,M0inv_Matrix,M1_Matrix,Nullspace,Coords,List);
    }

    RefMaxwell(const Teuchos::RCP<Matrix> & SM_Matrix,
               const Teuchos::RCP<Matrix> & D0_Matrix,
               const Teuchos::RCP<Matrix> & M1_Matrix,
               const Teuchos::RCP<MultiVector>  & Nullspace,
               const Teuchos::RCP<RealValuedMultiVector>  & Coords,
               Teuchos::ParameterList& List,
               bool ComputePrec)
    {
      initialize(D0_Matrix,Teuchos::null,M1_Matrix,Nullspace,Coords,List);

      resetMatrix(SM_Matrix);

      // compute preconditioner (optionally)
      if(ComputePrec)
        compute();
    }

    RefMaxwell(const Teuchos::RCP<Matrix> & D0_Matrix,
               const Teuchos::RCP<Matrix> & M1_Matrix,
               const Teuchos::RCP<MultiVector>  & Nullspace,
               const Teuchos::RCP<RealValuedMultiVector>  & Coords,
               Teuchos::ParameterList& List) : SM_Matrix_(Teuchos::null)
    {
      initialize(D0_Matrix,Teuchos::null,M1_Matrix,Nullspace,Coords,List);
    }

    RefMaxwell(const Teuchos::RCP<Matrix> & SM_Matrix,
               Teuchos::ParameterList& List,
               bool ComputePrec = true)
    {

      RCP<MultiVector> Nullspace = List.get<RCP<MultiVector> >("Nullspace", Teuchos::null);
      RCP<RealValuedMultiVector> Coords = List.get<RCP<RealValuedMultiVector> >("Coordinates", Teuchos::null);
      RCP<Matrix> D0_Matrix = List.get<RCP<Matrix> >("D0");
      RCP<Matrix> M1_Matrix = List.get<RCP<Matrix> >("M1");
      RCP<Matrix> M0inv_Matrix = List.get<RCP<Matrix> >("M0inv", Teuchos::null);

      initialize(D0_Matrix,M0inv_Matrix,M1_Matrix,Nullspace,Coords,List);

      if (SM_Matrix != Teuchos::null)
        resetMatrix(SM_Matrix);

      // compute preconditioner (optionally)
      if(ComputePrec)
        compute();
    }

    virtual ~RefMaxwell() {}

    Teuchos::RCP<const Map> getDomainMap() const;

    Teuchos::RCP<const Map> getRangeMap() const;

    const Teuchos::RCP<Matrix> & getJacobian() const {
      return SM_Matrix_;
    }

    void setParameters(Teuchos::ParameterList& list);

    void compute();

    void buildProlongator();

    void formCoarseMatrix();

    void resetMatrix(Teuchos::RCP<Matrix> SM_Matrix_new);

    void apply (const MultiVector& X, MultiVector& Y,
                Teuchos::ETransp mode = Teuchos::NO_TRANS,
                Scalar alpha = Teuchos::ScalarTraits<Scalar>::one(),
                Scalar beta = Teuchos::ScalarTraits<Scalar>::zero()) const;

    bool hasTransposeApply() const;

#ifdef HAVE_MUELU_DEPRECATED_CODE
    template <class NewNode>
    Teuchos::RCP< RefMaxwell<Scalar, LocalOrdinal, GlobalOrdinal, NewNode> >
    MUELU_DEPRECATED
    clone (const RCP<NewNode>& new_node) const {
      return Teuchos::rcp (new RefMaxwell<Scalar, LocalOrdinal, GlobalOrdinal, NewNode>
                           (HierarchyH_->template clone<NewNode> (new_node),
                            Hierarchy22_->template clone<NewNode> (new_node)));
    }
#endif

    void describe(Teuchos::FancyOStream &out, const Teuchos::EVerbosityLevel verbLevel = Teuchos::VERB_HIGH) const;

  private:

    void initialize(const Teuchos::RCP<Matrix> & D0_Matrix,
                    const Teuchos::RCP<Matrix> & M0inv_Matrix,
                    const Teuchos::RCP<Matrix> & M1_Matrix,
                    const Teuchos::RCP<MultiVector> & Nullspace,
                    const Teuchos::RCP<RealValuedMultiVector> & Coords,
                    Teuchos::ParameterList& List);

    void solveH() const;

    void solve22() const;

    void applyInverseAdditive(const MultiVector& RHS, MultiVector& X) const;

    void applyInverse121(const MultiVector& RHS, MultiVector& X) const;

    void applyInverse212(const MultiVector& RHS, MultiVector& X) const;

    void applyInverse11only(const MultiVector& RHS, MultiVector& X) const;

    Teuchos::RCP<Hierarchy> HierarchyH_, Hierarchy22_;
    Teuchos::RCP<SmootherBase> PreSmoother_, PostSmoother_;
#if defined(HAVE_MUELU_IFPACK2) && (!defined(HAVE_MUELU_EPETRA) || defined(HAVE_MUELU_INST_DOUBLE_INT_INT))
    Teuchos::RCP<Ifpack2::Preconditioner<Scalar,LocalOrdinal,GlobalOrdinal,Node> > hiptmairPreSmoother_, hiptmairPostSmoother_;
#endif
    bool useHiptmairSmoothing_;
    Teuchos::RCP<Matrix> SM_Matrix_, D0_Matrix_, D0_T_Matrix_, M0inv_Matrix_, M1_Matrix_, Ms_Matrix_;
    Teuchos::RCP<Matrix> A_nodal_Matrix_, P11_, R11_, AH_, A22_;
#ifdef HAVE_MUELU_KOKKOS_REFACTOR
    Kokkos::View<const bool*, typename Node::device_type> BCrowsKokkos_;
    Kokkos::View<const bool*, typename Node::device_type> BCcolsKokkos_;
#endif
    Teuchos::ArrayRCP<const bool> BCrows_;
    Teuchos::ArrayRCP<const bool> BCcols_;
    Teuchos::RCP<MultiVector> Nullspace_;
    Teuchos::RCP<RealValuedMultiVector> Coords_, CoordsH_;
    Teuchos::RCP<const Import> ImporterH_, Importer22_;
    Teuchos::ParameterList parameterList_, precList11_, precList22_, smootherList_;
    bool disable_addon_, dump_matrices_,useKokkos_,use_as_preconditioner_;
    std::string mode_;
    mutable Teuchos::RCP<MultiVector> P11res_, P11x_, D0res_, D0x_, residual_, P11resTmp_, P11xTmp_, D0resTmp_, D0xTmp_;
  };

} // namespace

#define MUELU_REFMAXWELL_SHORT
#endif // MUELU_REFMAXWELL_DECL_HPP