Simplified diagonal-based incomplete LU preconditioner for asymmetric matrices. The reciprocal of the preconditioned diagonal is calculated and stored. More...

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Public Member Functions
	TypeName ("DILU")
	Runtime type information. More...

	DILUPreconditioner (const lduMatrix::solver &, const dictionary &solverControlsUnused)
	Construct from matrix components and preconditioner solver controls. More...

virtual	~DILUPreconditioner ()=default
	Destructor. More...

virtual void	precondition (solveScalarField &wA, const solveScalarField &rA, const direction cmpt=0) const
	Return wA the preconditioned form of residual rA. More...

virtual void	preconditionT (solveScalarField &wT, const solveScalarField &rT, const direction cmpt=0) const
	Return wT the transpose-matrix preconditioned form of residual rT. More...

Public Member Functions inherited from lduMatrix::preconditioner
virtual const word &	type () const =0
	Runtime type information. More...

	declareRunTimeSelectionTable (autoPtr, preconditioner, symMatrix,(const solver &sol, const dictionary &solverControls),(sol, solverControls))

	declareRunTimeSelectionTable (autoPtr, preconditioner, asymMatrix,(const solver &sol, const dictionary &solverControls),(sol, solverControls))

	preconditioner (const solver &sol)

virtual	~preconditioner ()=default
	Destructor. More...

virtual void	read (const dictionary &)

Static Public Member Functions
static void	calcReciprocalD (solveScalarField &, const lduMatrix &)
	Calculate the reciprocal of the preconditioned diagonal. More...

Static Public Member Functions inherited from lduMatrix::preconditioner
static word	getName (const dictionary &)
	Find the preconditioner name (directly or from a sub-dictionary) More...

static autoPtr< preconditioner >	New (const solver &sol, const dictionary &solverControls)
	Return a new preconditioner. More...

Additional Inherited Members
Protected Attributes inherited from lduMatrix::preconditioner
const solver &	solver_
	Reference to the base-solver this preconditioner is used with. More...

Detailed Description

Simplified diagonal-based incomplete LU preconditioner for asymmetric matrices. The reciprocal of the preconditioned diagonal is calculated and stored.

Source files

Definition at line 56 of file DILUPreconditioner.H.

Constructor & Destructor Documentation

◆ DILUPreconditioner()

DILUPreconditioner	(	const lduMatrix::solver &	sol,
		const dictionary &	solverControlsUnused
	)

Construct from matrix components and preconditioner solver controls.

Definition at line 47 of file DILUPreconditioner.C.

References Foam::diag(), lduMatrix::diag(), and lduMatrix::solver::matrix().

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◆ ~DILUPreconditioner()

virtual ~DILUPreconditioner ( )

virtualdefault

Destructor.

Member Function Documentation

◆ TypeName()

TypeName ( "DILU" )

Runtime type information.

◆ calcReciprocalD()

void calcReciprocalD	(	solveScalarField &	rD,
		const lduMatrix &	matrix
	)

static

Calculate the reciprocal of the preconditioned diagonal.

Definition at line 65 of file DILUPreconditioner.C.

References UList< T >::begin(), lduMatrix::lduAddr(), lduMatrix::lower(), lduAddressing::lowerAddr(), lduMatrix::upper(), and lduAddressing::upperAddr().

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◆ precondition()

void precondition	(	solveScalarField &	wA,
		const solveScalarField &	rA,
		const direction	cmpt = `0`
	)		const

virtual

Return wA the preconditioned form of residual rA.

Implements lduMatrix::preconditioner.

Definition at line 96 of file DILUPreconditioner.C.

◆ preconditionT()

void preconditionT	(	solveScalarField &	wT,
		const solveScalarField &	rT,
		const direction	cmpt = `0`
	)		const

virtual

Return wT the transpose-matrix preconditioned form of residual rT.

Reimplemented from lduMatrix::preconditioner.

Definition at line 143 of file DILUPreconditioner.C.

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

src/OpenFOAM/matrices/lduMatrix/preconditioners/DILUPreconditioner/DILUPreconditioner.H
src/OpenFOAM/matrices/lduMatrix/preconditioners/DILUPreconditioner/DILUPreconditioner.C

Public Member Functions

Static Public Member Functions

Additional Inherited Members