Teko_EpetraBlockPreconditioner.hpp

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//      Teko: A package for block and physics based preconditioning
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#ifndef __Teko_EpetraBlockPreconditioner_hpp__
#define __Teko_EpetraBlockPreconditioner_hpp__
 
// #include "Teko_BlockPreconditionerFactory.hpp"
#include "Teko_PreconditionerFactory.hpp"
#include "Teko_EpetraInverseOpWrapper.hpp"
 
namespace Teko {
namespace Epetra {

class EpetraBlockPreconditioner : public EpetraInverseOpWrapper {
public:
   EpetraBlockPreconditioner(const Teuchos::RCP<const PreconditionerFactory> & bfp); 

   virtual void initPreconditioner(bool clearOld=false);

   virtual void buildPreconditioner(const Teuchos::RCP<const Epetra_Operator> & A,bool clear=true);

   virtual void buildPreconditioner(const Teuchos::RCP<const Epetra_Operator> & A,const Epetra_MultiVector & mv,bool clear=true);

   virtual void rebuildPreconditioner(const Teuchos::RCP<const Epetra_Operator> & A);

   virtual void rebuildPreconditioner(const Teuchos::RCP<const Epetra_Operator> & A,const Epetra_MultiVector & mv);

   virtual Teuchos::RCP<PreconditionerState> getPreconditionerState();

   virtual Teuchos::RCP<const PreconditionerState> getPreconditionerState() const;
 
protected:
   Teuchos::RCP<const Thyra::LinearOpBase<double> > extractLinearOp(const Teuchos::RCP<const Epetra_Operator> & A) const;
   Teuchos::RCP<const MappingStrategy> extractMappingStrategy(const Teuchos::RCP<const Epetra_Operator> & A) const;
 
   EpetraBlockPreconditioner(); 
   EpetraBlockPreconditioner(const EpetraBlockPreconditioner &); 
 
   // Teuchos::RCP<const BlockPreconditionerFactory> preconFactory_;
   Teuchos::RCP<const PreconditionerFactory> preconFactory_;
   Teuchos::RCP<Thyra::PreconditionerBase<double> > preconObj_;
   bool firstBuildComplete_;
};
 
} // end namespace Epetra
} // end namespace Teko
 
#endif