Teko_PresLaplaceLSCStrategy.hpp

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

#include "Teko_LSCStrategy.hpp"

namespace Teko {
namespace NS {

class LSCPrecondState;  // forward declration

class PresLaplaceLSCStrategy : public LSCStrategy {
 public:

  PresLaplaceLSCStrategy();
  PresLaplaceLSCStrategy(const Teuchos::RCP<InverseFactory> &factory);
  PresLaplaceLSCStrategy(const Teuchos::RCP<InverseFactory> &invFactF,
                         const Teuchos::RCP<InverseFactory> &invFactS);

  virtual ~PresLaplaceLSCStrategy() {}



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

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

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

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

  // virtual LinearOp getInvAlphaD(const BlockedLinearOp & A,BlockPreconditionerState & state)
  // const;
  virtual LinearOp getOuterStabilization(const BlockedLinearOp &A,
                                         BlockPreconditionerState &state) const;

  virtual LinearOp getInnerStabilization(const BlockedLinearOp & /* A */,
                                         BlockPreconditionerState & /* state */) const {
    return Teuchos::null;
  }

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

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

  virtual bool useFullLDU() const { return useFullLDU_; }

  virtual void setSymmetric(bool isSymmetric) { isSymmetric_ = isSymmetric; }

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

  virtual Teuchos::RCP<Teuchos::ParameterList> getRequestedParameters() const;

  virtual bool updateRequestedParameters(const Teuchos::ParameterList &pl);

  virtual void initializeState(const BlockedLinearOp &A, LSCPrecondState *state) const;

  void computeInverses(const BlockedLinearOp &A, LSCPrecondState *state) const;

  virtual void setEigSolveParam(int sz) { eigSolveParam_ = sz; }

  virtual int getEigSolveParam() { return eigSolveParam_; }

  virtual void setUseFullLDU(bool val) { useFullLDU_ = val; }

 protected:
  // how to invert the matrices
  Teuchos::RCP<InverseFactory> invFactoryV_;
  Teuchos::RCP<InverseFactory> invFactoryP_;

  // flags for handling various options
  bool isSymmetric_;
  int eigSolveParam_;
  bool useFullLDU_;

  // scaling operator parameters
  bool useMass_;
  DiagonalType scaleType_;

 private:
  PresLaplaceLSCStrategy(const PresLaplaceLSCStrategy &);

 public:
  // some static functions for determining strings

  static std::string getPressureLaplaceString() { return "Pressure Laplace Operator"; }
  static std::string getVelocityMassString() { return "Velocity Mass Operator"; }
};

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

#endif