DILUPreconditioner Class Reference

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

#include <OpenFOAM/DILUPreconditioner.H>

---

Detailed Description

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

Source files

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

Definition at line 51 of file DILUPreconditioner.H.

Inheritance diagram for DILUPreconditioner:

Collaboration diagram for DILUPreconditioner:

List of all members.

Public Member Functions
	TypeName ("DILU")
	Runtime type information.
	DILUPreconditioner (const lduMatrix::solver &, const dictionary &solverControlsUnused)
	Construct from matrix components and preconditioner solver controls.
virtual	~DILUPreconditioner ()
virtual void	precondition (scalarField &wA, const scalarField &rA, const direction cmpt=0) const
	Return wA the preconditioned form of residual rA.
virtual void	preconditionT (scalarField &wT, const scalarField &rT, const direction cmpt=0) const
	Return wT the transpose-matrix preconditioned form of residual rT.
Static Public Member Functions
static void	calcReciprocalD (scalarField &rD, const lduMatrix &matrix)
	Calculate the reciprocal of the preconditioned diagonal.

---

Constructor & Destructor Documentation

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

Construct from matrix components and preconditioner solver controls.

Definition at line 43 of file DILUPreconditioner.C.

References lduMatrix::solver::matrix().

virtual ~DILUPreconditioner

(

)

[inline, virtual]

Definition at line 79 of file DILUPreconditioner.H.

---

Member Function Documentation

TypeName

(

"DILU"

)

Runtime type information.

void calcReciprocalD	(	scalarField &	rD,
		const lduMatrix &	matrix
	)		[static]

Calculate the reciprocal of the preconditioned diagonal.

Definition at line 58 of file DILUPreconditioner.C.

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

void precondition	(	scalarField &	wA,
		const scalarField &	rA,
		const direction	cmpt = 0
	)		const [virtual]

Return wA the preconditioned form of residual rA.

Implements lduMatrix::preconditioner.

Definition at line 89 of file DILUPreconditioner.C.

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

void preconditionT	(	scalarField &	wT,
		const scalarField &	rT,
		const direction	cmpt = 0
	)		const [virtual]

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

Reimplemented from lduMatrix::preconditioner.

Definition at line 139 of file DILUPreconditioner.C.

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

---

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