GAMGPreconditioner Class Reference

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 ()
 Destructor. More...
 
virtual void precondition (scalarField &wA, const scalarField &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 wordtype () 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)
 
virtual ~solver ()
 Destructor. More...
 
const wordfieldName () const
 
const lduMatrixmatrix () const
 
const FieldField< Field, scalar > & interfaceBouCoeffs () const
 
const FieldField< Field, scalar > & interfaceIntCoeffs () const
 
const lduInterfaceFieldPtrsListinterfaces () const
 
virtual void read (const dictionary &)
 Read and reset the solver parameters from the given stream. More...
 
scalar normFactor (const scalarField &psi, const scalarField &source, const scalarField &Apsi, scalarField &tmpField) const
 Return the matrix norm used to normalise the residual for the. More...
 
- Public Member Functions inherited from lduMatrix::preconditioner
virtual const wordtype () 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 ()
 Destructor. More...
 
virtual void read (const dictionary &)
 Read and reset the preconditioner parameters. More...
 
virtual void preconditionT (scalarField &wT, const scalarField &rT, const direction cmpt=0) const
 Return wT the transpose-matrix preconditioned form of. 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 lduMatrixmatrix_
 
const FieldField< Field, scalar > & interfaceBouCoeffs_
 
const FieldField< Field, scalar > & interfaceIntCoeffs_
 
lduInterfaceFieldPtrsList interfaces_
 
dictionary controlDict_
 Dictionary of controls. More...
 
label maxIter_
 Maximum number of iterations in the solver. More...
 
label minIter_
 Minimum number of iterations in the solver. More...
 
scalar tolerance_
 Final convergence tolerance. More...
 
scalar relTol_
 Convergence tolerance relative to the initial. More...
 
- Protected Attributes inherited from lduMatrix::preconditioner
const solversolver_
 Reference to the base-solver this preconditioner is used with. More...
 

Additional Inherited Members

- Static Public Member Functions inherited from lduMatrix::solver
static autoPtr< solverNew (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. 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< preconditionerNew (const solver &sol, const dictionary &solverControls)
 Return a new preconditioner. More...
 
- Static Protected Attributes inherited from lduMatrix::solver
static const label defaultMaxIter_ = 1000
 Default maximum number of iterations in the solver. More...
 

Detailed Description

Geometric agglomerated algebraic multigrid preconditioner.

See also
GAMGSolver for more details.
Source files

Definition at line 51 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 44 of file GAMGPreconditioner.C.

References GAMGPreconditioner::readControls().

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◆ ~GAMGPreconditioner()

~GAMGPreconditioner ( )
virtual

Destructor.

Definition at line 68 of file GAMGPreconditioner.C.

Member Function Documentation

◆ readControls()

void readControls ( )
protectedvirtual

Read the control parameters from the controlDict_.

Reimplemented from GAMGSolver.

Definition at line 74 of file GAMGPreconditioner.C.

Referenced by GAMGPreconditioner::GAMGPreconditioner().

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◆ TypeName()

TypeName ( "GAMG"  )

Runtime type information.

◆ precondition()

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 81 of file GAMGPreconditioner.C.

References List< T >::size().

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Member Data Documentation

◆ nVcycles_

label nVcycles_
protected

Number of V-cycles to perform.

Definition at line 60 of file GAMGPreconditioner.H.


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