Teko_PreconditionerLinearOpDecl.hpp

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//      Teko: A package for block and physics based preconditioning
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#ifndef __Teko_PreconditionerLinearOpDecl_hpp__
#define __Teko_PreconditionerLinearOpDecl_hpp__
 
#include "Thyra_LinearOpBase.hpp"
#include "Thyra_PreconditionerBase.hpp"
#include "Thyra_VectorSpaceBase.hpp"
 
#include "Teuchos_ConstNonconstObjectContainer.hpp"
 
namespace Teko {

template <typename ScalarT>
class PreconditionerLinearOp : public Thyra::LinearOpBase<ScalarT> {
public:
   PreconditionerLinearOp();
   PreconditionerLinearOp(const Teuchos::RCP<Thyra::PreconditionerBase<ScalarT> > & prec);
   PreconditionerLinearOp(const Teuchos::RCP<const Thyra::PreconditionerBase<ScalarT> > & prec);

   void initialize(const Teuchos::RCP<Thyra::PreconditionerBase<ScalarT> > & prec);

   void initialize(const Teuchos::RCP<const Thyra::PreconditionerBase<ScalarT> > & prec);

   void uninitialize();

   virtual Teuchos::RCP<const Thyra::VectorSpaceBase<ScalarT> > range() const;

   virtual Teuchos::RCP<const Thyra::VectorSpaceBase<ScalarT> > domain() const;
 
   virtual bool opSupportedImpl(const Thyra::EOpTransp M_trans) const;

   virtual void applyImpl(
     const Thyra::EOpTransp M_trans,
     const Thyra::MultiVectorBase<ScalarT> & x,
     const Teuchos::Ptr<Thyra::MultiVectorBase<ScalarT> > & y,
     const ScalarT alpha,
     const ScalarT beta
     ) const;

   virtual Teuchos::RCP<Thyra::PreconditionerBase<ScalarT> > getNonconstPreconditioner();

   virtual Teuchos::RCP<const Thyra::PreconditionerBase<ScalarT> > getPreconditioner() const;

   Teko::LinearOp getOperator() const { return getOperator_cnoc().getConstObj(); }
 
   // Inherited from Teuchos::Describable
   void describe(Teuchos::FancyOStream & out_arg,const Teuchos::EVerbosityLevel verbLevel) const;
protected:
   Teuchos::ConstNonconstObjectContainer<Thyra::LinearOpBase<ScalarT> > getOperator_cnoc() const;

   Teuchos::ConstNonconstObjectContainer<Thyra::LinearOpBase<ScalarT> > getOperator_cnoc();
 
   Teuchos::ConstNonconstObjectContainer<Thyra::PreconditionerBase<ScalarT> > preconditioner_;
};

inline Teko::LinearOp extractOperatorFromPrecOp(const Teko::LinearOp & lo);
 
} // end namespace Teko
 
#endif