Thyra_AmesosLinearOpWithSolve.hpp

// @HEADER
// *****************************************************************************
//         Stratimikos: Thyra-based strategies for linear solvers
//
// Copyright 2006 NTESS and the Stratimikos contributors.
// SPDX-License-Identifier: BSD-3-Clause
// *****************************************************************************
// @HEADER

#ifndef THYRA_AMESOS_LINEAR_OP_WITH_SOLVE_HPP
#define THYRA_AMESOS_LINEAR_OP_WITH_SOLVE_HPP

#include "Thyra_LinearOpWithSolveBase.hpp"
#include "Thyra_LinearOpSourceBase.hpp"
#include "Thyra_EpetraLinearOpBase.hpp"
#include "Epetra_LinearProblem.h"
#include "Amesos_BaseSolver.h"


namespace Thyra {


class AmesosLinearOpWithSolve : virtual public LinearOpWithSolveBase<double>
{
public:


  AmesosLinearOpWithSolve();

  AmesosLinearOpWithSolve(
    const Teuchos::RCP<const LinearOpBase<double> > &fwdOp,
    const Teuchos::RCP<const LinearOpSourceBase<double> > &fwdOpSrc,
    const Teuchos::RCP<Epetra_LinearProblem> &epetraLP,
    const Teuchos::RCP<Amesos_BaseSolver> &amesosSolver,
    const EOpTransp amesosSolverTransp,
    const double amesosSolverScalar
    );

  void initialize(
    const Teuchos::RCP<const LinearOpBase<double> > &fwdOp,
    const Teuchos::RCP<const LinearOpSourceBase<double> > &fwdOpSrc,
    const Teuchos::RCP<Epetra_LinearProblem> &epetraLP,
    const Teuchos::RCP<Amesos_BaseSolver> &amesosSolver,
    const EOpTransp amesosSolverTransp,
    const double amesosSolverScalar
    );

  Teuchos::RCP<const LinearOpSourceBase<double> > extract_fwdOpSrc();

  Teuchos::RCP<const LinearOpBase<double> > get_fwdOp() const;

  Teuchos::RCP<const LinearOpSourceBase<double> > get_fwdOpSrc() const;

  Teuchos::RCP<Epetra_LinearProblem> get_epetraLP() const;

  Teuchos::RCP<Amesos_BaseSolver> get_amesosSolver() const;

  EOpTransp get_amesosSolverTransp() const;

  double get_amesosSolverScalar() const;

  void uninitialize(
    Teuchos::RCP<const LinearOpBase<double> > *fwdOp = NULL,
    Teuchos::RCP<const LinearOpSourceBase<double> > *fwdOpSrc = NULL,
    Teuchos::RCP<Epetra_LinearProblem> *epetraLP = NULL,
    Teuchos::RCP<Amesos_BaseSolver> *amesosSolver = NULL,
    EOpTransp *amesosSolverTransp = NULL,
    double *amesosSolverScalar = NULL
    );
  

  Teuchos::RCP< const VectorSpaceBase<double> > range() const;
  Teuchos::RCP< const VectorSpaceBase<double> > domain() const;
  Teuchos::RCP<const LinearOpBase<double> > clone() const;

  std::string description() const;
  void describe(
    Teuchos::FancyOStream &out,
    const Teuchos::EVerbosityLevel verbLevel
    ) const;

protected:

  virtual bool opSupportedImpl(EOpTransp M_trans) const;
  virtual void applyImpl(
    const EOpTransp M_trans,
    const MultiVectorBase<double> &X,
    const Ptr<MultiVectorBase<double> > &Y,
    const double alpha,
    const double beta
    ) const;

  virtual bool solveSupportsImpl(EOpTransp M_trans) const;
  virtual bool solveSupportsSolveMeasureTypeImpl(
    EOpTransp M_trans, const SolveMeasureType& solveMeasureType
    ) const;
  SolveStatus<double> solveImpl(
    const EOpTransp M_trans,
    const MultiVectorBase<double> &B,
    const Ptr<MultiVectorBase<double> > &X,
    const Ptr<const SolveCriteria<double> > solveCriteria
    ) const;

private:

  Teuchos::RCP<const LinearOpBase<double> > fwdOp_;
  Teuchos::RCP<const LinearOpSourceBase<double> > fwdOpSrc_;
  Teuchos::RCP<Epetra_LinearProblem> epetraLP_;
  Teuchos::RCP<Amesos_BaseSolver> amesosSolver_;
  EOpTransp amesosSolverTransp_;
  double amesosSolverScalar_;

  void assertInitialized() const;

};

// ///////////////////////////
// Inline members

inline
Teuchos::RCP<const LinearOpBase<double> >
AmesosLinearOpWithSolve::get_fwdOp() const
{
  return fwdOp_;
}

inline
Teuchos::RCP<const LinearOpSourceBase<double> >
AmesosLinearOpWithSolve::get_fwdOpSrc() const
{
  return fwdOpSrc_;
}

inline
Teuchos::RCP<Epetra_LinearProblem>
AmesosLinearOpWithSolve::get_epetraLP() const
{
  return epetraLP_;
}

inline
Teuchos::RCP<Amesos_BaseSolver>
AmesosLinearOpWithSolve::get_amesosSolver() const
{
  return amesosSolver_;
}

inline
EOpTransp AmesosLinearOpWithSolve::get_amesosSolverTransp() const
{
  return amesosSolverTransp_;
}

inline
double AmesosLinearOpWithSolve::get_amesosSolverScalar() const
{
  return amesosSolverScalar_;
}

} // namespace Thyra

#endif  // THYRA_AMESOS_LINEAR_OP_WITH_SOLVE_HPP