1 /*---------------------------------------------------------------------------*\
3 \\ / F ield | OpenFOAM: The Open Source CFD Toolbox
5 \\ / A nd | Copyright (C) 2011 OpenFOAM Foundation
7 -------------------------------------------------------------------------------
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25 Foam::GAMGPreconditioner
28 Geometric agglomerated algebraic multigrid preconditioner.
31 GAMGSolver for more details.
36 \*---------------------------------------------------------------------------*/
38 #ifndef GAMGPreconditioner_H
39 #define GAMGPreconditioner_H
41 #include "GAMGSolver.H"
43 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
48 /*---------------------------------------------------------------------------*\
49 Class GAMGPreconditioner Declaration
50 \*---------------------------------------------------------------------------*/
52 class GAMGPreconditioner
55 public lduMatrix::preconditioner
60 //- Number of V-cycles to perform
63 //- Read the control parameters from the controlDict_
64 virtual void readControls();
68 //- Runtime type information
74 //- Construct from matrix components and preconditioner solver controls
77 const lduMatrix::solver&,
78 const dictionary& solverControls
83 virtual ~GAMGPreconditioner();
88 //- Return wA the preconditioned form of residual rA
89 virtual void precondition
92 const scalarField& rA,
93 const direction cmpt=0
98 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
100 } // End namespace Foam
102 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
106 // ************************************************************************* //