TDILUPreconditioner< Type, DType, LUType > Class Template Reference

Simplified diagonal-based incomplete LU preconditioner for asymmetric matrices. More...

Inheritance diagram for TDILUPreconditioner< Type, DType, LUType >:

Collaboration diagram for TDILUPreconditioner< Type, DType, LUType >:

Public Member Functions
	TypeName ("DILU")
	Runtime type information. More...
	TDILUPreconditioner (const typename LduMatrix< Type, DType, LUType >::solver &sol, const dictionary &preconditionerDict)
	Construct from matrix components and preconditioner data dictionary. More...
virtual	~TDILUPreconditioner ()
virtual void	precondition (Field< Type > &wA, const Field< Type > &rA) const
	Return wA the preconditioned form of residual rA. More...
virtual void	preconditionT (Field< Type > &wT, const Field< Type > &rT) const
	Return wT the transpose-matrix preconditioned form of. More...
Public Member Functions inherited from LduMatrix< Type, DType, LUType >::preconditioner
virtual const word &	type () const =0
	Runtime type information. More...
	declareRunTimeSelectionTable (autoPtr, preconditioner, symMatrix,(const solver &sol, const dictionary &preconditionerDict),(sol, preconditionerDict))
	declareRunTimeSelectionTable (autoPtr, preconditioner, asymMatrix,(const solver &sol, const dictionary &preconditionerDict),(sol, preconditionerDict))
	preconditioner (const solver &sol)
virtual	~preconditioner ()
virtual void	read (const dictionary &preconditionerDict)
	Read and reset the preconditioner parameters. More...

Static Public Member Functions
static void	calcInvD (Field< DType > &rD, const LduMatrix< Type, DType, LUType > &matrix)
	Calculate the reciprocal of the preconditioned diagonal. More...
Static Public Member Functions inherited from LduMatrix< Type, DType, LUType >::preconditioner
static autoPtr< preconditioner >	New (const solver &sol, const dictionary &preconditionerDict)
	Return a new preconditioner. More...

Additional Inherited Members
Protected Attributes inherited from LduMatrix< Type, DType, LUType >::preconditioner
const solver &	solver_
	Reference to the base-solver this preconditioner is used with. More...

Detailed Description

template<class Type, class DType, class LUType>
class Foam::TDILUPreconditioner< Type, DType, LUType >

Simplified diagonal-based incomplete LU preconditioner for asymmetric matrices.

The inverse (reciprocal for scalar) of the preconditioned diagonal is calculated and stored.

Source files

• TDILUPreconditioner.H
• TDILUPreconditioner.C

Definition at line 53 of file TDILUPreconditioner.H.

Constructor & Destructor Documentation

TDILUPreconditioner()

TDILUPreconditioner	(	const typename LduMatrix< Type, DType, LUType >::solver &	sol,
		const dictionary &	preconditionerDict
	)

Construct from matrix components and preconditioner data dictionary.

Definition at line 31 of file TDILUPreconditioner.C.

References TDILUPreconditioner< Type, DType, LUType >::calcInvD(), and LduMatrix< Type, DType, LUType >::solver::matrix().

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~TDILUPreconditioner()

virtual ~TDILUPreconditioner ( )

inlinevirtual

Definition at line 81 of file TDILUPreconditioner.H.

Member Function Documentation

TypeName()

TypeName

(

"DILU"

)

Runtime type information.

calcInvD()

void calcInvD ( Field< DType > &  rD, const LduMatrix< Type, DType, LUType > &  matrix  )

static

Calculate the reciprocal of the preconditioned diagonal.

Definition at line 47 of file TDILUPreconditioner.C.

References UList< T >::begin(), Foam::dot(), Foam::inv(), LduMatrix< Type, DType, LUType >::lduAddr(), LduMatrix< Type, DType, LUType >::lower(), lduAddressing::lowerAddr(), List< T >::size(), LduMatrix< Type, DType, LUType >::upper(), and lduAddressing::upperAddr().

Referenced by TDILUPreconditioner< Type, DType, LUType >::TDILUPreconditioner().

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precondition()

void precondition ( Field< Type > &  wA, const Field< Type > &  rA  ) const

virtual

Return wA the preconditioned form of residual rA.

Implements LduMatrix< Type, DType, LUType >::preconditioner.

Definition at line 80 of file TDILUPreconditioner.C.

References UList< T >::begin(), Foam::dot(), and List< T >::size().

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preconditionT()

void preconditionT ( Field< Type > &  wT, const Field< Type > &  rT  ) const

virtual

Return wT the transpose-matrix preconditioned form of.

residual rT.

Reimplemented from LduMatrix< Type, DType, LUType >::preconditioner.

Definition at line 130 of file TDILUPreconditioner.C.

References UList< T >::begin(), Foam::dot(), and List< T >::size().

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The documentation for this class was generated from the following files:

• src/OpenFOAM/matrices/LduMatrix/Preconditioners/DILUPreconditioner/TDILUPreconditioner.H
• src/OpenFOAM/matrices/LduMatrix/Preconditioners/DILUPreconditioner/TDILUPreconditioner.C