MueLu_XpetraOperator_decl.hpp

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#ifndef MUELU_XPETRAOPERATOR_DECL_HPP
#define MUELU_XPETRAOPERATOR_DECL_HPP

#include "MueLu_ConfigDefs.hpp"

#include <Xpetra_Operator.hpp>
#include <Xpetra_MultiVector.hpp>
#include "MueLu_Level.hpp"
#include "MueLu_Hierarchy_decl.hpp"

namespace MueLu {

  template <class Scalar = DefaultScalar,
            class LocalOrdinal = DefaultLocalOrdinal,
            class GlobalOrdinal = DefaultGlobalOrdinal,
            class Node = DefaultNode>
  class XpetraOperator : public Xpetra::Operator<Scalar,LocalOrdinal,GlobalOrdinal,Node> {
  protected:
    XpetraOperator() { }
  public:



    XpetraOperator(const RCP<MueLu::Hierarchy<Scalar, LocalOrdinal, GlobalOrdinal, Node> >& H) : Hierarchy_(H) { }

    virtual ~XpetraOperator() { }


    Teuchos::RCP<const Xpetra::Map<LocalOrdinal,GlobalOrdinal,Node> > getDomainMap() const;

    Teuchos::RCP<const Xpetra::Map<LocalOrdinal,GlobalOrdinal,Node> > getRangeMap() const;


    void apply(const Xpetra::MultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node>& X,
                                         Xpetra::MultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node>& Y,
                                         Teuchos::ETransp mode = Teuchos::NO_TRANS,
                                         Scalar /* alpha */ = Teuchos::ScalarTraits<Scalar>::one(),
                                         Scalar /* beta */  = Teuchos::ScalarTraits<Scalar>::one()) const;

    bool hasTransposeApply() const { return false; }

    void residual(const Xpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node > & X,
                  const Xpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node > & B,
                  Xpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node > & R) const;
    


    RCP<MueLu::Hierarchy<Scalar, LocalOrdinal, GlobalOrdinal, Node> > GetHierarchy() const { return Hierarchy_; }


  private:
    RCP<MueLu::Hierarchy<Scalar, LocalOrdinal, GlobalOrdinal, Node> > Hierarchy_;
  };

} // namespace

#endif // MUELU_XPETRAOPERATOR_DECL_HPP