Teko_PCDStrategy.hpp

/*
// @HEADER
// 
// ***********************************************************************
// 
//      Teko: A package for block and physics based preconditioning
//                  Copyright 2010 Sandia Corporation 
//  
// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
// the U.S. Government retains certain rights in this software.
//  
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//  
// 1. Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//  
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//  
// 3. Neither the name of the Corporation nor the names of the
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission. 
//  
// THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SANDIA CORPORATION OR THE
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//  
// Questions? Contact Eric C. Cyr (eccyr@sandia.gov)
// 
// ***********************************************************************
// 
// @HEADER

*/

#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_;

   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