Teko_DiagonalPreconditionerFactory.hpp

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

// Teko includes
#include "Teko_PreconditionerState.hpp"
#include "Teko_PreconditionerFactory.hpp"

class EpetraExt_PointToBlockDiagPermute; 


namespace Teko {

using Thyra::LinearOpBase;
using Thyra::DefaultPreconditioner;


class DiagonalPrecondState : public Teko::PreconditionerState {
public:
  DiagonalPrecondState();

  Teuchos::RCP<EpetraExt_PointToBlockDiagPermute> BDP_;
};

class DiagonalPreconditionerFactory 
   : public virtual Teko::PreconditionerFactory {
public:


  
  DiagonalPreconditionerFactory();

  
  Teuchos::RCP<PreconditionerState> buildPreconditionerState() const;


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

  virtual void initializeFromParameterList(const Teuchos::ParameterList & pl);

protected: 
  mutable Teuchos::ParameterList List_;

  DiagonalType diagonalType_;
};

} // end namespace Teko

#endif