Ifpack_PerturbedMatrix.h

/*@HEADER
// ***********************************************************************
// 
//       Ifpack: Object-Oriented Algebraic Preconditioner Package
//                 Copyright (2002) Sandia Corporation
// 
// Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
// license for use of this work by or on behalf of the U.S. Government.
// 
// This library is free software; you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation; either version 2.1 of the
// License, or (at your option) any later version.
//  
// This library is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// Lesser General Public License for more details.
//  
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
// USA
// Questions? Contact Michael A. Heroux (maherou@sandia.gov) 
// 
// ***********************************************************************
//@HEADER
*/

#ifndef IFPACK_PERTURBEDMATRIX_H
#define IFPACK_PERTURBEDMATRIX_H

#include "Ifpack_ConfigDefs.h"
#include "Epetra_CrsGraph.h"
#include "Epetra_Object.h"
class Epetra_Comm;
class Epetra_Map;



class Ifpack_PerturbedMatrix: public Epetra_Object {

 public:


  Ifpack_PerturbedMatrix(const Epetra_RowMatrix & UserMatrix);
  
  Ifpack_PerturbedMatrix(const Ifpack_PerturbedMatrix & Source);

  virtual ~Ifpack_PerturbedMatrix();


  void SetAbsoluteThreshold( double Athresh) {Athresh_ = Athresh; return;}

  void SetRelativeThreshold( double Rthresh) {Rthresh_ = Rthresh; return;}


#endif // IFPACK_PERTURBEDMATRIX_H

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