MueLu_AztecEpetraOperator.hpp

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// @HEADER
// *****************************************************************************
//        MueLu: A package for multigrid based preconditioning
//
// Copyright 2012 NTESS and the MueLu contributors.
// SPDX-License-Identifier: BSD-3-Clause
// *****************************************************************************
// @HEADER

#ifndef PACKAGES_MUELU_ADAPTERS_AZTECOO_MUELU_AZTECEPETRAOPERATOR_HPP_
#define PACKAGES_MUELU_ADAPTERS_AZTECOO_MUELU_AZTECEPETRAOPERATOR_HPP_

#include <Epetra_Operator.h>

#include "Xpetra_Operator.hpp"

#if defined(HAVE_MUELU_SERIAL) and defined(HAVE_MUELU_EPETRA)

namespace MueLu {

class AztecEpetraOperator : public Epetra_Operator {
  typedef double SC;
  typedef int LO;
  typedef int GO;
  typedef Xpetra::EpetraNode NO;

  typedef Xpetra::Map<LO, GO, NO> Map;
  typedef Xpetra::EpetraMapT<GO, NO> EpetraMap;
  typedef Xpetra::Operator<SC, LO, GO, NO> Operator;

 public:


  AztecEpetraOperator(const Teuchos::RCP<Operator>& Op)
    : xOp_(Op) {}

  virtual ~AztecEpetraOperator() {}


  int SetUseTranspose(bool /* UseTransposeBool */) { return -1; }




  int Apply(const Epetra_MultiVector& /* X */, Epetra_MultiVector& /* Y */) const { return -1; }


  int ApplyInverse(const Epetra_MultiVector& X, Epetra_MultiVector& Y) const;

  /* Returns the quantity \f$ \| A \|_\infty\f$ such that
     \f[\| A \|_\infty = \max_{1\lei\lem} \sum_{j=1}^n |a_{ij}| \f].

     \warning This method must not be called unless HasNormInf() returns true.
  */
  double NormInf() const { return 0; }



  const char* Label() const { return "MueLu::AztecEpetraOperator"; }

  bool UseTranspose() const { return false; }

  bool HasNormInf() const { return 0; }

  const Epetra_Comm& Comm() const;

  const Epetra_Map& OperatorDomainMap() const;

  const Epetra_Map& OperatorRangeMap() const;




  Teuchos::RCP<Operator> GetOperator() const { return xOp_; }


 private:
  Teuchos::RCP<Operator> xOp_;
};

}  // namespace MueLu

#endif

#endif /* PACKAGES_MUELU_ADAPTERS_AZTECOO_MUELU_AZTECEPETRAOPERATOR_HPP_ */