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Teko_LU2x2DiagonalStrategy.hpp
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6// Teko: A package for block and physics based preconditioning
7// Copyright 2010 Sandia Corporation
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9// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
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46
47#ifndef __Teko_LU2x2DiagonalStrategy_hpp__
48#define __Teko_LU2x2DiagonalStrategy_hpp__
49
50#include "Teko_LU2x2Strategy.hpp"
51
52// Teuchos includes
53#include "Teuchos_Time.hpp"
54
55namespace Teko {
56
67public:
70
72 LU2x2DiagonalStrategy(const Teuchos::RCP<InverseFactory> & invFA,
73 const Teuchos::RCP<InverseFactory> & invS);
74
77
79 virtual const Teko::LinearOp
80 getHatInvA00(const Teko::BlockedLinearOp & A,BlockPreconditionerState & state) const;
81
83 virtual const Teko::LinearOp
84 getTildeInvA00(const Teko::BlockedLinearOp & A,BlockPreconditionerState & state) const;
85
87 virtual const Teko::LinearOp
88 getInvS(const Teko::BlockedLinearOp & A,BlockPreconditionerState & state) const;
89
101 virtual void initializeFromParameterList(const Teuchos::ParameterList & settings,
102 const InverseLibrary & invLib);
103
104protected:
107 static void buildTimers();
108
115 void initializeState(const Teko::BlockedLinearOp & A,BlockPreconditionerState & state) const;
116
117 // how to invert the matrices
118 Teuchos::RCP<InverseFactory> invFactoryA00_; // for \tilde{A_00}\f$
119 Teuchos::RCP<InverseFactory> invFactoryS_;
120
121 DiagonalType a00InverseType_;
122
123 static Teuchos::RCP<Teuchos::Time> initTimer_;
124 static Teuchos::RCP<Teuchos::Time> invSTimer_;
125 static Teuchos::RCP<Teuchos::Time> invA00Timer_;
126 static Teuchos::RCP<Teuchos::Time> opsTimer_;
127};
128
129} // end namespace Teko
130
131#endif
DiagonalType
Type describing the type of diagonal to construct.
An implementation of a state object for block preconditioners.
Strategy for computing and in the LU2x2PreconditionerFactory. Uses the diagonal of to build .
virtual const Teko::LinearOp getInvS(const Teko::BlockedLinearOp &A, BlockPreconditionerState &state) const
virtual const Teko::LinearOp getTildeInvA00(const Teko::BlockedLinearOp &A, BlockPreconditionerState &state) const
virtual ~LU2x2DiagonalStrategy()
Destructor (does nothing)
virtual const Teko::LinearOp getHatInvA00(const Teko::BlockedLinearOp &A, BlockPreconditionerState &state) const
void initializeState(const Teko::BlockedLinearOp &A, BlockPreconditionerState &state) const
virtual void initializeFromParameterList(const Teuchos::ParameterList &settings, const InverseLibrary &invLib)
This function builds the internals of the state from a parameter list.
Abstract strategy for computing inv(F) and inv(S) in the LU2x2PreconditionerFactory.