Teko_PCDStrategy.hpp

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//      Teko: A package for block and physics based preconditioning
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#ifndef __Teko_PCDStrategy_hpp__
#define __Teko_PCDStrategy_hpp__
 
#include "Teko_LU2x2Strategy.hpp"
 
// Teuchos includes
#include "Teuchos_Time.hpp"
 
namespace Teko {
namespace NS {
 
class PCDStrategy : public LU2x2Strategy {
public:
   PCDStrategy();
 
   PCDStrategy(const Teuchos::RCP<InverseFactory> & invFA,
                         const Teuchos::RCP<InverseFactory> & invS);
 
   virtual ~PCDStrategy() {}
 
   virtual const Teko::LinearOp
   getHatInvA00(const Teko::BlockedLinearOp & A,BlockPreconditionerState & state) const;
 
   virtual const Teko::LinearOp
   getTildeInvA00(const Teko::BlockedLinearOp & A,BlockPreconditionerState & state) const;
 
   virtual const Teko::LinearOp
   getInvS(const Teko::BlockedLinearOp & A,BlockPreconditionerState & state) const;
 
   virtual void initializeFromParameterList(const Teuchos::ParameterList & settings,
                                            const InverseLibrary & invLib);
 
   virtual Teuchos::RCP<Teuchos::ParameterList> getRequestedParameters() const;
 
   virtual bool updateRequestedParameters(const Teuchos::ParameterList & pl);
 
protected:
   static void buildTimers();
 
   void initializeState(const Teko::BlockedLinearOp & A,BlockPreconditionerState & state) const;
 
   // how to invert the matrices
   Teuchos::RCP<InverseFactory> invFactoryF_; // for \tilde{A_00}\f$
   Teuchos::RCP<InverseFactory> invFactoryS_;
 
   DiagonalType massInverseType_;
 
   Teuchos::RCP<Teuchos::ParameterList> lapParams_; 
 
   Teuchos::RCP<Teuchos::ParameterList> pcdParams_; 
 
   bool schurCompOrdering_;
 
   static Teuchos::RCP<Teuchos::Time> initTimer_;
   static Teuchos::RCP<Teuchos::Time> invSTimer_;
   static Teuchos::RCP<Teuchos::Time> invFTimer_;
   static Teuchos::RCP<Teuchos::Time> opsTimer_;
 
public:
   // some static functions for determining strings
 
   static std::string getPCDString() { return "PCD Operator"; }
   static std::string getPressureLaplaceString() { return "Pressure Laplace Operator"; }
   static std::string getPressureMassString() { return "Pressure Mass Matrix"; }
};
 
} // end namespace NS
} // end namespace Teko
 
#endif