MueLu_Amesos2Smoother_decl.hpp

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#ifndef MUELU_AMESOS2SMOOTHER_DECL_HPP
#define MUELU_AMESOS2SMOOTHER_DECL_HPP

#include "MueLu_ConfigDefs.hpp"
#if defined(HAVE_MUELU_TPETRA) && defined(HAVE_MUELU_AMESOS2)

#include <Teuchos_ParameterList.hpp>

#include "MueLu_Amesos2Smoother_fwd.hpp"

#include "MueLu_SmootherPrototype.hpp"
#include "MueLu_FactoryBase_fwd.hpp"
#include "MueLu_Utilities_fwd.hpp"

namespace Amesos2 { template<class OP, class MV> class Solver; }

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 Amesos2Smoother : public SmootherPrototype<Scalar,LocalOrdinal,GlobalOrdinal,Node> {
#undef MUELU_AMESOS2SMOOTHER_SHORT
#include "MueLu_UseShortNames.hpp"

  public:



    Amesos2Smoother(const std::string& type = "", const Teuchos::ParameterList& paramList = Teuchos::ParameterList());

    virtual ~Amesos2Smoother();



    void DeclareInput(Level& currentLevel) const;




    void Setup(Level& currentLevel);

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

    RCP<SmootherPrototype> Copy() const;



    std::string description() const;

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


  private:
    typedef Tpetra::CrsMatrix<Scalar, LocalOrdinal, GlobalOrdinal, Node> Tpetra_CrsMatrix;
    typedef Tpetra::MultiVector<Scalar, LocalOrdinal, GlobalOrdinal, Node> Tpetra_MultiVector;

    std::string type_;

    RCP<Amesos2::Solver<Tpetra_CrsMatrix, Tpetra_MultiVector> > prec_;

    bool useTransformation_;
    RCP<MultiVector> X_, B_;

  }; // class Amesos2Smoother

#ifdef HAVE_MUELU_EPETRA

# if ((defined(EPETRA_HAVE_OMP) && (!defined(HAVE_TPETRA_INST_OPENMP) || !defined(HAVE_TPETRA_INST_INT_INT))) || \
    (!defined(EPETRA_HAVE_OMP) && (!defined(HAVE_TPETRA_INST_SERIAL) || !defined(HAVE_TPETRA_INST_INT_INT))))
  // Stub specialization for missing Epetra template args
  template<>
  class Amesos2Smoother<double,int,int,Xpetra::EpetraNode> : public SmootherPrototype<double,int,int,Xpetra::EpetraNode> {
    typedef double              Scalar;
    typedef int                 LocalOrdinal;
    typedef int                 GlobalOrdinal;
    typedef Xpetra::EpetraNode  Node;
#undef MUELU_AMESOS2SMOOTHER_SHORT
#include "MueLu_UseShortNames.hpp"

  public:
    Amesos2Smoother(const std::string& type = "", const Teuchos::ParameterList& paramList = Teuchos::ParameterList()) {
      MUELU_TPETRA_ETI_EXCEPTION("Amesos2Smoother<double,int,int,EpetraNode>","Amesos2Smoother<double,int,int,EpetraNode>","int");
    }
    virtual ~Amesos2Smoother() {};
    void DeclareInput(Level& currentLevel) const {};
    void Setup(Level& currentLevel) {};
    void Apply(MultiVector& X, const MultiVector& B, bool InitialGuessIsZero = false) const {};

    RCP<SmootherPrototype> Copy() const { return Teuchos::null; };

    std::string description() const { return std::string(""); };
    void print(Teuchos::FancyOStream& out, const VerbLevel verbLevel = Default) const {};
   
    size_t getNodeSmootherComplexity() const {size_t cplx=0; return cplx;};
  };
# endif
#endif // HAVE_MUELU_EPETRA

} // namespace MueLu

#define MUELU_AMESOS2SMOOTHER_SHORT
#endif // HAVE_MUELU_TPETRA && HAVE_MUELU_AMESOS2
#endif // MUELU_AMESOS2SMOOTHER_DECL_HPP