MueLu_EpetraOperator.hpp

Go to the documentation of this file.

// @HEADER
//
// ***********************************************************************
//
//        MueLu: A package for multigrid based preconditioning
//                  Copyright 2012 Sandia Corporation
//
// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
// the U.S. Government retains certain rights in this software.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// 1. Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// 3. Neither the name of the Corporation nor the names of the
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SANDIA CORPORATION OR THE
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Questions? Contact
//                    Jonathan Hu       (jhu@sandia.gov)
//                    Andrey Prokopenko (aprokop@sandia.gov)
//                    Ray Tuminaro      (rstumin@sandia.gov)
//
// ***********************************************************************
//
// @HEADER
#ifndef MUELU_EPETRAOPERATOR_HPP
#define MUELU_EPETRAOPERATOR_HPP


#include <Epetra_Operator.h>
#include "MueLu_Hierarchy.hpp"
//TODO: Kokkos headers

namespace MueLu {

  class EpetraOperator : public Epetra_Operator {
    typedef double                                              SC;
    typedef int                                                 LO;
    typedef int                                                 GO;
    typedef KokkosClassic::DefaultNode::DefaultNodeType         NO;

    typedef Xpetra::Matrix<SC,LO,GO,NO>                     Matrix;
    typedef MueLu::Hierarchy<SC,LO,GO,NO>                   Hierarchy;
    typedef MueLu::Utils<SC,LO,GO,NO>                       Utils;

  public:



    EpetraOperator(const RCP<Hierarchy>& H) : Hierarchy_(H) { }

    virtual ~EpetraOperator() { }


    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::Hierarchy"; }

    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;




    RCP<Hierarchy> GetHierarchy() const { return Hierarchy_; }



  private:

    RCP<Hierarchy> Hierarchy_;

  };

} // namespace

#endif // MUELU_EPETRAOPERATOR_HPP