1 /*---------------------------------------------------------------------------*\
3 \\ / F ield | OpenFOAM: The Open Source CFD Toolbox
5 \\ / A nd | Copyright (C) 1991-2009 OpenCFD Ltd.
7 -------------------------------------------------------------------------------
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26 Foam::GAMGPreconditioner
29 Geometric agglomerated algebraic multigrid preconditioner.
32 GAMGSolver for more details.
37 \*---------------------------------------------------------------------------*/
39 #ifndef GAMGPreconditioner_H
40 #define GAMGPreconditioner_H
42 #include "GAMGSolver.H"
44 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
49 /*---------------------------------------------------------------------------*\
50 Class GAMGPreconditioner Declaration
51 \*---------------------------------------------------------------------------*/
53 class GAMGPreconditioner
56 public lduMatrix::preconditioner
61 //- Number of V-cycles to perform
64 //- Read the control parameters from the controlDict_
65 virtual void readControls();
69 //- Runtime type information
75 //- Construct from matrix components and preconditioner solver controls
78 const lduMatrix::solver&,
79 const dictionary& solverControls
85 virtual ~GAMGPreconditioner();
90 //- Return wA the preconditioned form of residual rA
91 virtual void precondition
94 const scalarField& rA,
95 const direction cmpt=0
100 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
102 } // End namespace Foam
104 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
108 // ************************************************************************* //