Geometric agglomerated algebraic multigrid preconditioner. More...

Inheritance diagram for GAMGPreconditioner:

Collaboration diagram for GAMGPreconditioner:

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

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

virtual	~GAMGPreconditioner ()=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...

Public Member Functions inherited from GAMGSolver
	TypeName ("GAMG")
	Runtime type information. More...

	GAMGSolver (const word &fieldName, const lduMatrix &matrix, const FieldField< Field, scalar > &interfaceBouCoeffs, const FieldField< Field, scalar > &interfaceIntCoeffs, const lduInterfaceFieldPtrsList &interfaces, const dictionary &solverControls)
	Construct from lduMatrix and solver controls. More...

virtual	~GAMGSolver ()
	Destructor. More...

virtual solverPerformance	solve (scalarField &psi, const scalarField &source, const direction cmpt=0) const
	Solve. More...

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

	declareRunTimeSelectionTable (autoPtr, solver, symMatrix,(const word &fieldName, const lduMatrix &matrix, const FieldField< Field, scalar > &interfaceBouCoeffs, const FieldField< Field, scalar > &interfaceIntCoeffs, const lduInterfaceFieldPtrsList &interfaces, const dictionary &solverControls),(fieldName, matrix, interfaceBouCoeffs, interfaceIntCoeffs, interfaces, solverControls))

	declareRunTimeSelectionTable (autoPtr, solver, asymMatrix,(const word &fieldName, const lduMatrix &matrix, const FieldField< Field, scalar > &interfaceBouCoeffs, const FieldField< Field, scalar > &interfaceIntCoeffs, const lduInterfaceFieldPtrsList &interfaces, const dictionary &solverControls),(fieldName, matrix, interfaceBouCoeffs, interfaceIntCoeffs, interfaces, solverControls))

	solver (const word &fieldName, const lduMatrix &matrix, const FieldField< Field, scalar > &interfaceBouCoeffs, const FieldField< Field, scalar > &interfaceIntCoeffs, const lduInterfaceFieldPtrsList &interfaces, const dictionary &solverControls)
	Construct solver for given field name, matrix etc. More...

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

const word &	fieldName () const noexcept

const lduMatrix &	matrix () const noexcept

const FieldField< Field, scalar > &	interfaceBouCoeffs () const noexcept

const FieldField< Field, scalar > &	interfaceIntCoeffs () const noexcept

const lduInterfaceFieldPtrsList &	interfaces () const noexcept

virtual void	read (const dictionary &)
	Read and reset the solver parameters from the given stream. More...

virtual solverPerformance	scalarSolve (solveScalarField &psi, const solveScalarField &source, const direction cmpt=0) const
	Solve with given field and rhs (in solveScalar precision). More...

solveScalarField::cmptType	normFactor (const solveScalarField &psi, const solveScalarField &source, const solveScalarField &Apsi, solveScalarField &tmpField, const lduMatrix::normTypes normType) const
	Return the matrix norm using the specified norm method. More...

solveScalarField::cmptType	normFactor (const solveScalarField &psi, const solveScalarField &source, const solveScalarField &Apsi, solveScalarField &tmpField) const
	Return the matrix norm used to normalise the residual for the stopping criterion. 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)
	Construct for given solver. More...

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

virtual void	read (const dictionary &)
	Read and reset the preconditioner parameters from the given stream. 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...

virtual void	setFinished (const solverPerformance &perf) const
	Signal end of solver. More...

Protected Member Functions
virtual void	readControls ()
	Read the control parameters from the controlDict_. More...

Protected Attributes
label	nVcycles_
	Number of V-cycles to perform. More...

Protected Attributes inherited from lduMatrix::solver
word	fieldName_

const lduMatrix &	matrix_

const FieldField< Field, scalar > &	interfaceBouCoeffs_

const FieldField< Field, scalar > &	interfaceIntCoeffs_

lduInterfaceFieldPtrsList	interfaces_

dictionary	controlDict_
	Dictionary of solution controls. More...

int	log_
	Verbosity level for solver output statements. More...

label	minIter_
	Minimum number of iterations in the solver. More...

label	maxIter_
	Maximum number of iterations in the solver. More...

lduMatrix::normTypes	normType_
	The normalisation type. More...

scalar	tolerance_
	Final convergence tolerance. More...

scalar	relTol_
	Convergence tolerance relative to the initial. More...

profilingTrigger	profiling_
	Profiling instrumentation. More...

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

Additional Inherited Members
Static Public Member Functions inherited from lduMatrix::solver
static autoPtr< solver >	New (const word &solverName, const word &fieldName, const lduMatrix &matrix, const FieldField< Field, scalar > &interfaceBouCoeffs, const FieldField< Field, scalar > &interfaceIntCoeffs, const lduInterfaceFieldPtrsList &interfaces, const dictionary &solverControls)
	Return a new solver of given type. More...

static autoPtr< solver >	New (const word &fieldName, const lduMatrix &matrix, const FieldField< Field, scalar > &interfaceBouCoeffs, const FieldField< Field, scalar > &interfaceIntCoeffs, const lduInterfaceFieldPtrsList &interfaces, const dictionary &solverControls)
	Return a new solver given dictionary. 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...

Detailed Description

Geometric agglomerated algebraic multigrid preconditioner.

See also: GAMGSolver for more details.

Source files

Definition at line 53 of file GAMGPreconditioner.H.

Constructor & Destructor Documentation

◆ GAMGPreconditioner()

GAMGPreconditioner	(	const lduMatrix::solver &	sol,
		const dictionary &	solverControls
	)

Construct from matrix components and preconditioner solver controls.

Definition at line 42 of file GAMGPreconditioner.C.

◆ ~GAMGPreconditioner()

virtual ~GAMGPreconditioner ( )

virtualdefault

Destructor.

Member Function Documentation

◆ readControls()

void readControls ( )

protectedvirtual

Read the control parameters from the controlDict_.

Reimplemented from GAMGSolver.

Definition at line 65 of file GAMGPreconditioner.C.

References lduMatrix::solver::controlDict_, dictionary::getOrDefault(), and GAMGPreconditioner::nVcycles_.

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◆ TypeName()

TypeName ( "GAMG" )

Runtime type information.

◆ 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 73 of file GAMGPreconditioner.C.

References refPtr< Container< Type > >::cref(), UList< T >::size(), and Foam::Zero.

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Member Data Documentation

◆ nVcycles_

label nVcycles_

protected

Number of V-cycles to perform.

Definition at line 65 of file GAMGPreconditioner.H.

Referenced by GAMGPreconditioner::readControls().

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

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

Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members