Teko_TpetraBlockPreconditioner.hpp

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//      Teko: A package for block and physics based preconditioning
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#ifndef __Teko_TpetraBlockPreconditioner_hpp__
#define __Teko_TpetraBlockPreconditioner_hpp__

// #include "Teko_BlockPreconditionerFactory.hpp"
#include "Teko_PreconditionerFactory.hpp"
#include "Teko_TpetraInverseOpWrapper.hpp"
#include "Teko_ConfigDefs.hpp"

namespace Teko {
namespace TpetraHelpers {

class TpetraBlockPreconditioner : public TpetraInverseOpWrapper {
public:
   TpetraBlockPreconditioner(const Teuchos::RCP<const PreconditionerFactory> & bfp); 

   virtual void initPreconditioner(bool clearOld=false);

   virtual void buildPreconditioner(const Teuchos::RCP<const Tpetra::Operator<ST,LO,GO,NT> > & A,bool clear=true);

   virtual void buildPreconditioner(const Teuchos::RCP<const Tpetra::Operator<ST,LO,GO,NT> > & A,const Tpetra::MultiVector<ST,LO,GO,NT> & mv,bool clear=true);

   virtual void rebuildPreconditioner(const Teuchos::RCP<const Tpetra::Operator<ST,LO,GO,NT> > & A);

   virtual void rebuildPreconditioner(const Teuchos::RCP<const Tpetra::Operator<ST,LO,GO,NT> > & A,const Tpetra::MultiVector<ST,LO,GO,NT> & mv);

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

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

protected:
   Teuchos::RCP<const Thyra::LinearOpBase<ST> > extractLinearOp(const Teuchos::RCP<const Tpetra::Operator<ST,LO,GO,NT> > & A) const;
   Teuchos::RCP<const MappingStrategy> extractMappingStrategy(const Teuchos::RCP<const Tpetra::Operator<ST,LO,GO,NT> > & A) const;

   TpetraBlockPreconditioner(); 
   TpetraBlockPreconditioner(const TpetraBlockPreconditioner &); 

   // Teuchos::RCP<const BlockPreconditionerFactory> preconFactory_;
   Teuchos::RCP<const PreconditionerFactory> preconFactory_;
   Teuchos::RCP<Thyra::PreconditionerBase<ST> > preconObj_;
   bool firstBuildComplete_;
};

} // end namespace TpetraHelpers
} // end namespace Teko

#endif