Teko_DiagonallyScaledPreconditionerFactory.hpp

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//      Teko: A package for block and physics based preconditioning
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#ifndef __Teko_DiagonallyScaledPreconditionerFactory_hpp__
#define __Teko_DiagonallyScaledPreconditionerFactory_hpp__
 
#include "Teuchos_Time.hpp"
 
// Teko includes
#include "Teko_PreconditionerFactory.hpp"
 
namespace Teko {

class DiagonallyScaledPreconditionerFactory 
   : public virtual Teko::PreconditionerFactory {
public:
   typedef enum {COLUMN_SCALING, ROW_SCALING} ScalingType;

   DiagonallyScaledPreconditionerFactory();

   DiagonallyScaledPreconditionerFactory(const Teuchos::RCP<Teko::InverseFactory> & invFactory,ScalingType columnScaling=COLUMN_SCALING,DiagonalType diagonalType=AbsRowSum);

   virtual ~DiagonallyScaledPreconditionerFactory();

   virtual LinearOp buildPreconditionerOperator(LinearOp & lo,PreconditionerState & state) const;



   virtual void initializeFromParameterList(const Teuchos::ParameterList & settings);
   
 
private:
   Teuchos::RCP<Teko::InverseFactory> invFactory_;
   ScalingType scalingType_;
   DiagonalType diagonalType_;
};
 
} // end namespace Teko
 
#endif