Teko_LSCStrategy.hpp

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

#include "Teuchos_RCP.hpp"

#include "Thyra_LinearOpBase.hpp"

#include "Teko_Utilities.hpp"
#include "Teko_InverseFactory.hpp"
#include "Teko_BlockPreconditionerFactory.hpp"

namespace Teko {
namespace NS {

class LSCPrecondState; // forward declaration

class LSCStrategy {
public:
   virtual ~LSCStrategy() {}

   virtual void buildState(BlockedLinearOp & A,BlockPreconditionerState & state) const = 0;

   virtual LinearOp getInvBQBt(const BlockedLinearOp & A,BlockPreconditionerState & state) const = 0;

   virtual LinearOp getInvBHBt(const BlockedLinearOp & A,BlockPreconditionerState & state) const = 0;

   virtual LinearOp getInvF(const BlockedLinearOp & A,BlockPreconditionerState & state) const = 0;

   #if 0

   virtual LinearOp getInvAlphaD(const BlockedLinearOp & A,BlockPreconditionerState & state) const = 0;
   #endif

   virtual LinearOp getOuterStabilization(const BlockedLinearOp & A,BlockPreconditionerState & state) const = 0;

   virtual LinearOp getInnerStabilization(const BlockedLinearOp & A,BlockPreconditionerState & state) const = 0;

   virtual LinearOp getInvMass(const BlockedLinearOp & A,BlockPreconditionerState & state) const = 0;

   virtual LinearOp getHScaling(const BlockedLinearOp & A,BlockPreconditionerState & state) const = 0;

   virtual bool useFullLDU() const = 0;

   virtual void setSymmetric(bool isSymmetric) = 0;

   virtual void initializeFromParameterList(const Teuchos::ParameterList & /* pl */,const InverseLibrary & /* invLib */) {}

   virtual Teuchos::RCP<Teuchos::ParameterList> getRequestedParameters() const { return Teuchos::null;}

   virtual bool updateRequestedParameters(const Teuchos::ParameterList & /* pl */) { return true; }

   void setRequestHandler(const Teuchos::RCP<RequestHandler> & rh)
   { requestHandler_ = rh; }

   Teuchos::RCP<RequestHandler> getRequestHandler() const
   { return requestHandler_; }

private:
   Teuchos::RCP<RequestHandler> requestHandler_;

};

} // end namespace NS
} // end namespace Teko

#endif