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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 virtual Teko::PreconditionerFactory {
85 public:
86  typedef enum {COLUMN_SCALING, ROW_SCALING} ScalingType;
87 
90 
95  DiagonallyScaledPreconditionerFactory(const Teuchos::RCP<Teko::InverseFactory> & invFactory,ScalingType columnScaling=COLUMN_SCALING,DiagonalType diagonalType=AbsRowSum);
96 
99 
113  virtual LinearOp buildPreconditionerOperator(LinearOp & lo,PreconditionerState & state) const;
114 
116 
117 
128  virtual void initializeFromParameterList(const Teuchos::ParameterList & settings);
129 
131 
132 private:
133  Teuchos::RCP<Teko::InverseFactory> invFactory_;
134  ScalingType scalingType_;
135  DiagonalType diagonalType_;
136 };
137 
138 } // end namespace Teko
139 
140 #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...