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Teko_DiagonallyScaledPreconditionerFactory.hpp
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46 
47 #ifndef __Teko_DiagonallyScaledPreconditionerFactory_hpp__
48 #define __Teko_DiagonallyScaledPreconditionerFactory_hpp__
49 
50 #include "Teuchos_Time.hpp"
51 
52 // Teko includes
53 #include "Teko_PreconditionerFactory.hpp"
54 
55 namespace Teko {
56 
84  public:
85  typedef enum { COLUMN_SCALING, ROW_SCALING } ScalingType;
86 
89 
94  DiagonallyScaledPreconditionerFactory(const Teuchos::RCP<Teko::InverseFactory>& invFactory,
95  ScalingType columnScaling = COLUMN_SCALING,
96  DiagonalType diagonalType = AbsRowSum);
97 
100 
114  virtual LinearOp buildPreconditionerOperator(LinearOp& lo, PreconditionerState& state) const;
115 
117 
118 
129  virtual void initializeFromParameterList(const Teuchos::ParameterList& settings);
130 
132 
133  private:
134  Teuchos::RCP<Teko::InverseFactory> invFactory_;
135  ScalingType scalingType_;
136  DiagonalType diagonalType_;
137 };
138 
139 } // end namespace Teko
140 
141 #endif
virtual LinearOp buildPreconditionerOperator(LinearOp &lo, PreconditionerState &state) const
Function that is called to build the preconditioner for the linear operator that is passed in...
virtual void initializeFromParameterList(const Teuchos::ParameterList &settings)
This function builds the internals of the preconditioner factory from a parameter list...
Abstract class which block preconditioner factories in Teko should be based on.
virtual ~DiagonallyScaledPreconditionerFactory()
default destructor: prints out diagnostic string
DiagonallyScaledPreconditionerFactory()
Default constructor, for use with the AutoClone class.
An implementation of a state object preconditioners.
Using an absolute row sum approximation of the matrix this factory creates an inverse using the expli...