Thyra_DelayedLinearOpWithSolveDecl.hpp

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// ***********************************************************************
// 
//    Thyra: Interfaces and Support for Abstract Numerical Algorithms
//                 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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// This library is free software; you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as
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// Lesser General Public License for more details.
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// You should have received a copy of the GNU Lesser General Public
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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#ifndef THYRA_DELAYED_LINEAR_OP_WITH_SOLVE_DECL_HPP
#define THYRA_DELAYED_LINEAR_OP_WITH_SOLVE_DECL_HPP


#include "Thyra_SingleScalarLinearOpWithSolveBase.hpp"


namespace Thyra {


template <class Scalar>
class DelayedLinearOpWithSolve
  : virtual public LinearOpWithSolveBase<Scalar> // Interface
  , virtual protected SingleScalarLinearOpWithSolveBase<Scalar> // Implementation
{
public:


  DelayedLinearOpWithSolve();

  void initialize(
    const RCP<const LinearOpSourceBase<Scalar> > &fwdOpSrc,
    const RCP<const PreconditionerBase<Scalar> > &prec,
    const RCP<const LinearOpSourceBase<Scalar> > &approxFwdOpSrc,
    const ESupportSolveUse supportSolveUse,
    const RCP<LinearOpWithSolveFactoryBase<Scalar> > &lowsf
    );

  RCP<const LinearOpSourceBase<Scalar> > getFwdOpSrc() const;

  RCP<const PreconditionerBase<Scalar> > getPrec() const;
 
  RCP<const LinearOpSourceBase<Scalar> > getApproxFwdOpSrc() const;

  ESupportSolveUse getSupportSolveUse() const;



  std::string description() const;



  RCP< const VectorSpaceBase<Scalar> > range() const;
  RCP< const VectorSpaceBase<Scalar> > domain() const;
  RCP<const LinearOpBase<Scalar> > clone() const;


protected:


  void informUpdatedVerbosityState() const;



  virtual bool opSupported(ETransp M_trans) const;
  virtual void apply(
    const ETransp M_trans,
    const MultiVectorBase<Scalar> &X,
    MultiVectorBase<Scalar> *Y,
    const Scalar alpha,
    const Scalar beta
    ) const;



  virtual bool solveSupportsTrans(ETransp M_trans) const;
  virtual bool solveSupportsSolveMeasureType(
    ETransp M_trans, const SolveMeasureType& solveMeasureType
    ) const;
  virtual void solve(
    const ETransp M_trans,
    const MultiVectorBase<Scalar> &B,
    MultiVectorBase<Scalar> *X,
    const int numBlocks,
    const BlockSolveCriteria<Scalar> blockSolveCriteria[],
    SolveStatus<Scalar> blockSolveStatus[]
    ) const;
  

private:

  // //////////////////////
  // Private data members

  RCP<const LinearOpSourceBase<Scalar> > fwdOpSrc_;
  RCP<const PreconditionerBase<Scalar> > prec_;
  RCP<const LinearOpSourceBase<Scalar> > approxFwdOpSrc_;
  ESupportSolveUse supportSolveUse_;
  RCP<LinearOpWithSolveFactoryBase<Scalar> > lowsf_;

  RCP<const LinearOpBase<Scalar> > fwdOp_;

  mutable bool lows_is_valid_;
  mutable RCP<LinearOpWithSolveBase<Scalar> > lows_;

  // ///////////////////////////
  // Private member functions

  void updateSolver() const;

};


} // namespace Thyra


#endif // THYRA_DELAYED_LINEAR_OP_WITH_SOLVE_DECL_HPP

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