MueLu_Maxwell1_decl.hpp

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#ifndef MUELU_MAXWELL1_DECL_HPP
#define MUELU_MAXWELL1_DECL_HPP

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

#include "MueLu_ReitzingerPFactory_fwd.hpp"
#include "MueLu_SaPFactory_fwd.hpp"

#include "MueLu_SmootherFactory_fwd.hpp"
#include "MueLu_TrilinosSmoother.hpp"
#include "MueLu_Utilities_fwd.hpp"
#include "MueLu_Level_fwd.hpp"
#include "MueLu_Hierarchy_fwd.hpp"
#include "MueLu_RAPFactory_fwd.hpp"
#include "MueLu_PerfUtils_fwd.hpp"
#include "MueLu_SmootherBase.hpp"

#include "MueLu_Utilities_kokkos_fwd.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"

namespace MueLu {

  template <class Scalar,
            class LocalOrdinal,
            class GlobalOrdinal,
            class Node>
  class Maxwell1 : public VerboseObject, public Xpetra::Operator<Scalar,LocalOrdinal,GlobalOrdinal,Node> {

#undef MUELU_MAXWELL1_SHORT
#include "MueLu_UseShortNames.hpp"

  public:

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

    Maxwell1() :
      Hierarchy11_(Teuchos::null),
      Hierarchy22_(Teuchos::null),
      HierarchyGmhd_(Teuchos::null),
      mode_(MODE_STANDARD)
    {
    }

    Maxwell1(Teuchos::RCP<Hierarchy> H11, Teuchos::RCP<Hierarchy> H22) :
      Hierarchy11_(H11),
      Hierarchy22_(H22),
      HierarchyGmhd_(Teuchos::null),
      mode_(MODE_STANDARD)
    {
    }

    Maxwell1(const Teuchos::RCP<Matrix> & SM_Matrix,
               const Teuchos::RCP<Matrix> & D0_Matrix,
               const Teuchos::RCP<MultiVector> & Nullspace,
               const Teuchos::RCP<RealValuedMultiVector> & Coords,
               Teuchos::ParameterList& List,
               bool ComputePrec = true):
               mode_(MODE_STANDARD)
    {
      RCP<Matrix> Kn_Matrix;
      initialize(D0_Matrix,Kn_Matrix,Nullspace,Coords,List);
      resetMatrix(SM_Matrix,ComputePrec);
    }

    Maxwell1(const Teuchos::RCP<Matrix> & SM_Matrix,
               const Teuchos::RCP<Matrix> & D0_Matrix,
               const Teuchos::RCP<Matrix> & Kn_Matrix,
               const Teuchos::RCP<MultiVector> & Nullspace,
               const Teuchos::RCP<RealValuedMultiVector> & Coords,
               Teuchos::ParameterList& List,
               bool ComputePrec = true):
               mode_(MODE_STANDARD)
    {
      initialize(D0_Matrix,Kn_Matrix,Nullspace,Coords,List);
      resetMatrix(SM_Matrix,ComputePrec);
    }

    Maxwell1(const Teuchos::RCP<Matrix> & SM_Matrix,
               const Teuchos::RCP<Matrix> & D0_Matrix,
               const Teuchos::RCP<Matrix> & Kn_Matrix,
               const Teuchos::RCP<MultiVector> & Nullspace,
               const Teuchos::RCP<RealValuedMultiVector> & Coords,
               Teuchos::ParameterList& List, const Teuchos::RCP<Matrix> & GmhdA_Matrix,
             bool ComputePrec = true):
            mode_(MODE_GMHD_STANDARD)
    {
      initialize(D0_Matrix,Kn_Matrix,Nullspace,Coords,List);
      resetMatrix(SM_Matrix,ComputePrec);
      GmhdA_Matrix_ = GmhdA_Matrix;
      HierarchyGmhd_ = rcp(new Hierarchy("HierarchyGmhd"));
      GMHDSetupHierarchy(List);
    }
   
    Maxwell1(const Teuchos::RCP<Matrix> & SM_Matrix,
             Teuchos::ParameterList& List,
             bool ComputePrec = true):
             mode_(MODE_STANDARD)
    {

      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> Kn_Matrix;
      if (List.isType<RCP<Matrix> >("Kn"))
        Kn_Matrix = List.get<RCP<Matrix> >("Kn");

      initialize(D0_Matrix,Kn_Matrix,Nullspace,Coords,List);

      if (SM_Matrix != Teuchos::null)
        resetMatrix(SM_Matrix,ComputePrec);
    }

    virtual ~Maxwell1() {}

    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(bool reuse=false);

    void resetMatrix(Teuchos::RCP<Matrix> SM_Matrix_new, bool ComputePrec=true);

    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;

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

    void residual(const MultiVector & X,
                  const MultiVector & B,
                  MultiVector & R) const {
      using STS = Teuchos::ScalarTraits<Scalar>;
      R.update(STS::one(),B,STS::zero());
      this->apply (X, R, Teuchos::NO_TRANS, -STS::one(), STS::one());
    }
    

  private:
    Teuchos::RCP<Matrix> generate_kn() const;


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


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

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

    void allocateMemory(int numVectors) const;

    void dump(const Matrix& A, std::string name) const;

    void dump(const MultiVector& X, std::string name) const;

    void dumpCoords(const RealValuedMultiVector& X, std::string name) const;

    void dump(const Teuchos::ArrayRCP<bool>& v, std::string name) const;

    void dump(const Kokkos::View<bool*, typename Node::device_type>& v, std::string name) const;

    Teuchos::RCP<Teuchos::TimeMonitor> getTimer(std::string name, RCP<const Teuchos::Comm<int> > comm=Teuchos::null) const;

    mutable Teuchos::ParameterList parameterList_, precList11_, precList22_;

    Teuchos::RCP<Hierarchy> Hierarchy11_, Hierarchy22_, HierarchyGmhd_;

    Teuchos::RCP<Matrix> SM_Matrix_, D0_Matrix_, Kn_Matrix_, GmhdA_Matrix_;

    Kokkos::View<bool*, typename Node::device_type> BCrowsKokkos_, BCcolsKokkos_, BCdomainKokkos_;
    int BCedges_, BCnodes_;
    Teuchos::ArrayRCP<bool> BCrows_, BCcols_, BCdomain_;
    Teuchos::RCP<MultiVector> Nullspace_;
    Teuchos::RCP<RealValuedMultiVector> Coords_;
    bool useKokkos_,allEdgesBoundary_,allNodesBoundary_,dump_matrices_,enable_reuse_,syncTimers_;
    bool applyBCsTo22_;
    
    typedef enum {MODE_STANDARD=0, MODE_REFMAXWELL, MODE_EDGE_ONLY, MODE_GMHD_STANDARD} mode_type;
    mode_type mode_;

    RCP<Matrix> P11_;
    mutable Teuchos::RCP<MultiVector> residualFine_, residual11c_, residual22_, update11c_,update22_;

  };




} // namespace

#define MUELU_MAXWELL1_SHORT
#endif // MUELU_MAXWELL1_DECL_HPP