Teko_LU2x2PreconditionerFactory.hpp

// @HEADER
// *****************************************************************************
//      Teko: A package for block and physics based preconditioning
//
// Copyright 2010 NTESS and the Teko contributors.
// SPDX-License-Identifier: BSD-3-Clause
// *****************************************************************************
// @HEADER

#ifndef __Teko_LU2x2PreconditionerFactory_hpp__
#define __Teko_LU2x2PreconditionerFactory_hpp__

#include "Teuchos_RCP.hpp"

#include "Teko_BlockPreconditionerFactory.hpp"
#include "Teko_LU2x2Strategy.hpp"

namespace Teko {

class LU2x2PreconditionerFactory : public BlockPreconditionerFactory {
 public:


  LU2x2PreconditionerFactory(LinearOp& invA00, LinearOp& invS);

  LU2x2PreconditionerFactory(LinearOp& hatInvA00, LinearOp& tildeInvA00, LinearOp& invS);

  LU2x2PreconditionerFactory(const Teuchos::RCP<LU2x2Strategy>& strategy);

  LU2x2PreconditionerFactory();


  LinearOp buildPreconditionerOperator(BlockedLinearOp& blo, BlockPreconditionerState& state) const;

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

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

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

  virtual bool useFullLDU() const { return useFullLDU_; }

  virtual void setFullLDU(bool value) { useFullLDU_ = value; }

 protected:
  using Teko::BlockPreconditionerFactory::buildPreconditionerOperator;

  Teuchos::RCP<LU2x2Strategy> invOpsStrategy_;

  bool useFullLDU_;

 public:
  static RCP<LU2x2Strategy> buildStrategy(const std::string& name,
                                          const Teuchos::ParameterList& settings,
                                          const RCP<const InverseLibrary>& invLib,
                                          const RCP<RequestHandler>& rh);

  static void addStrategy(const std::string& name, const RCP<Cloneable>& clone);

 private:
  static CloneFactory<LU2x2Strategy> strategyBuilder_;

  static void initializeStrategyBuilder();
};

}  // end namespace Teko

#endif