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"
 
#if defined(HAVE_MUELU_KOKKOS_REFACTOR)
#include "MueLu_Utilities_kokkos_fwd.hpp"
#endif
 
#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)
    {
    }
 
    Maxwell1(Teuchos::RCP<Hierarchy> H11, Teuchos::RCP<Hierarchy> H22) :
      Hierarchy11_(H11),
      Hierarchy22_(H22)
    {
    }
 
    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)
    {
      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)
    {
      initialize(D0_Matrix,Kn_Matrix,Nullspace,Coords,List);
      resetMatrix(SM_Matrix,ComputePrec);
    }
 
   
    Maxwell1(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> 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 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;
 
#ifdef HAVE_MUELU_KOKKOS_REFACTOR
    void dump(const Kokkos::View<bool*, typename Node::device_type>& v, std::string name) const;
#endif
 
    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_;
 
    Teuchos::RCP<Matrix> SM_Matrix_, D0_Matrix_, Kn_Matrix_;
 
#ifdef HAVE_MUELU_KOKKOS_REFACTOR
    Kokkos::View<bool*, typename Node::device_type> BCrowsKokkos_, BCcolsKokkos_, BCdomainKokkos_;
#endif
    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_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