BelosEpetraOperator.h

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//
//                 Belos: Block Linear Solvers Package
//                 Copyright (2004) 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.
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#ifndef BELOS_EPETRA_OPERATOR_H
#define BELOS_EPETRA_OPERATOR_H

#include "Epetra_MultiVector.h"
#include "Epetra_Operator.h"
#include "Epetra_Map.h"
#include "Epetra_LocalMap.h"

#include "BelosLinearProblem.hpp"
#include "BelosStatusTest.hpp"
#include "BelosOutputManager.hpp"
#include "BelosEpetraAdapter.hpp"
#include "BelosBlockGmres.hpp"
#include "BelosBlockCG.hpp"

#include "Teuchos_ParameterList.hpp"
using Teuchos::RefCountPtr;
using Teuchos::ParameterList;

namespace Belos {

//-------- class BelosEpetraOperator --------------------
//
// This class will allow Belos to be called as an Epetra_Operator.
// Thus, it can use itself as a preconditioner if need be.  It can
// also be used as the inner iteration of Anasazi :)
//

class EpetraOperator : public virtual Epetra_Operator {
public:

  
  EpetraOperator( const RefCountPtr<LinearProblem<double,Epetra_MultiVector,Epetra_Operator> >& lp, 
      const RefCountPtr<StatusTest<double,Epetra_MultiVector,Epetra_Operator> >& stest, 
      const RefCountPtr<OutputManager<double> >& om, 
      const RefCountPtr<ParameterList>& plist );
  
  virtual ~EpetraOperator() {}
  

  
  int SetUseTranspose( bool UseTranspose ) { return(-1); };
  

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

  
  double NormInf() const { return(0.0); };
  

  
  const char* Label() const { return(&Solver[0]); };
  
  bool UseTranspose() const { return(false); };
  
  bool HasNormInf() const { return(false); };
  
  const Epetra_Comm& Comm() const;
  
  const Epetra_Map& OperatorDomainMap() const;
  
  const Epetra_Map& OperatorRangeMap() const; 
private:

  RefCountPtr<IterativeSolver<double,Epetra_MultiVector,Epetra_Operator> > solver_;
  RefCountPtr<LinearProblem<double,Epetra_MultiVector,Epetra_Operator> > lp_;
  RefCountPtr<StatusTest<double,Epetra_MultiVector,Epetra_Operator> > stest_;
  RefCountPtr<OutputManager<double> > om_;
  RefCountPtr<ParameterList> plist_;

  const int Maxits;
  std::vector<char> Solver;
};

} //end namespace Belos

// end of file BELOS_EPETRA_OPERATOR_H
#endif 

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