Ifpack_Amesos.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
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//
// 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_AMESOS_H
#define IFPACK_AMESOS_H

#include "Ifpack_ConfigDefs.h"
#include "Ifpack_Preconditioner.h"
#include "Epetra_Operator.h"
#include "Teuchos_ParameterList.hpp"
#include "Teuchos_RefCountPtr.hpp"

class Epetra_Map;
class Epetra_Time;
class Epetra_Comm;
class Amesos_BaseSolver;
class Epetra_LinearProblem;
class Epetra_RowMatrix;

#ifdef TEUCHOS_DEBUG
// 2007/09/19: If building with --enable-teuchos-debug, then you need to have
// your type T fully defined if you dereference an RCP.  This was flagged on
// the SGI compiler on sasg5000.  Note that this problem goes away if these
// functions where defined in the *.cpp file instead of in the header file.
#include "Epetra_RowMatrix.h"
#endif


class Ifpack_Amesos : public Ifpack_Preconditioner {
      
public:


  Ifpack_Amesos(Epetra_RowMatrix* Matrix);

  Ifpack_Amesos(const Ifpack_Amesos& rhs);

  Ifpack_Amesos& operator=(const Ifpack_Amesos& rhs);


  virtual ~Ifpack_Amesos() {};




  virtual int SetUseTranspose(bool UseTranspose);
  


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


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

    virtual double NormInf() const;
  

    virtual const char * Label() const;

    virtual bool UseTranspose() const;

    virtual bool HasNormInf() const;

    virtual const Epetra_Comm & Comm() const;

    virtual const Epetra_Map & OperatorDomainMap() const;

    virtual const Epetra_Map & OperatorRangeMap() const;


 
  virtual bool IsInitialized() const
  {
    return(IsInitialized_);
  }


  virtual int Initialize();

  virtual bool IsComputed() const
  {
    return(IsComputed_);
  }


  virtual int Compute();


  virtual int SetParameters(Teuchos::ParameterList& List);



  virtual const Epetra_RowMatrix& Matrix() const
  {
    return(*Matrix_);
  }

  virtual double Condest(const Ifpack_CondestType CT = Ifpack_Cheap,
                         const int MaxIters = 1550,
                         const double Tol = 1e-9,
             Epetra_RowMatrix* Matrix= 0);
  
  virtual double Condest() const
  {
    return(Condest_);
  }

  virtual int NumInitialize() const
  {
    return(NumInitialize_);
  }

  virtual int NumCompute() const
  {
    return(NumCompute_);
  }

  virtual int NumApplyInverse() const
  {
    return(NumApplyInverse_);
  }

  virtual double InitializeTime() const
  {
    return(InitializeTime_);
  }

  virtual double ComputeTime() const
  {
    return(ComputeTime_);
  }

  virtual double ApplyInverseTime() const
  {
    return(ApplyInverseTime_);
  }

  virtual double InitializeFlops() const
  {
    return(0.0);
  }

  virtual double ComputeFlops() const
  {
    return(ComputeFlops_);
  }

  virtual double ApplyInverseFlops() const
  {
    return(ApplyInverseFlops_);
  }

  // Returns a constant reference to the internally stored 
  virtual const Teuchos::ParameterList& List() const 
  {
    return(List_);
  }

  virtual std::ostream& Print(std::ostream& os) const;


protected:
  

  inline void SetLabel(const char* Label) 
  {
    Label_ = Label;
  }

  inline void SetIsInitialized(const bool IsInitialized)
  {
    IsInitialized_ = IsInitialized;
  }

  inline void SetIsComputed(const int IsComputed)
  {
    IsComputed_ = IsComputed;
  }

  inline void SetNumInitialize(const int NumInitialize)
  {
    NumInitialize_ = NumInitialize;
  }

  inline void SetNumCompute(const int NumCompute)
  {
    NumCompute_ = NumCompute;
  }

  inline void SetNumApplyInverse(const int NumApplyInverse)
  {
    NumApplyInverse_ = NumApplyInverse;
  }

  inline void SetInitializeTime(const double InitializeTime)
  {
    InitializeTime_ = InitializeTime;
  }

  inline void SetComputeTime(const double ComputeTime)
  {
    ComputeTime_ = ComputeTime;
  }

  inline void SetApplyInverseTime(const double ApplyInverseTime)
  {
    ApplyInverseTime_ = ApplyInverseTime;
  }

  inline void SetComputeFlops(const double ComputeFlops)
  {
    ComputeFlops_ = ComputeFlops;
  }

  inline void SetApplyInverseFlops(const double ApplyInverseFlops)
  {
    ApplyInverseFlops_ = ApplyInverseFlops;
  }

  inline void SetList(const Teuchos::ParameterList& List)
  {
    List_ = List;
  }
  
private:

  Teuchos::RefCountPtr<const Epetra_RowMatrix> Matrix_;

  Teuchos::RefCountPtr<Amesos_BaseSolver> Solver_;
  Teuchos::RefCountPtr<Epetra_LinearProblem> Problem_;
  Teuchos::ParameterList List_;

  string Label_;
  bool IsInitialized_;
  bool IsComputed_;
  bool UseTranspose_;

  int NumInitialize_;
  int NumCompute_;
  mutable int NumApplyInverse_;

  double InitializeTime_;
  double ComputeTime_;
  mutable double ApplyInverseTime_;
  Teuchos::RefCountPtr<Epetra_Time> Time_;

  double ComputeFlops_;
  double ApplyInverseFlops_;

  double Condest_;
};

#endif // IFPACK_AMESOS_H

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