noPreconditioner.H

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/*---------------------------------------------------------------------------*\
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  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
    \\  /    A nd           | Copyright (C) 2011 OpenFOAM Foundation
     \\/     M anipulation  |
-------------------------------------------------------------------------------
License
    This file is part of OpenFOAM.
 
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    under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
 
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    for more details.
 
    You should have received a copy of the GNU General Public License
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Class
    Foam::noPreconditioner
 
Description
    Null preconditioner for both symmetric and asymmetric matrices.
 
SourceFiles
    noPreconditioner.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef noPreconditioner_H
#define noPreconditioner_H
 
#include "lduMatrix.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
/*---------------------------------------------------------------------------*\
                           Class noPreconditioner Declaration
\*---------------------------------------------------------------------------*/
 
class noPreconditioner
:
    public lduMatrix::preconditioner
{
    // Private Member Functions
 
        //- Disallow default bitwise copy construct
        noPreconditioner(const noPreconditioner&);
 
        //- Disallow default bitwise assignment
        void operator=(const noPreconditioner&);
 
 
public:
 
    //- Runtime type information
    TypeName("none");
 
 
    // Constructors
 
        //- Construct from matrix components and preconditioner solver controls
        noPreconditioner
        (
            const lduMatrix::solver&,
            const dictionary& solverControlsUnused
        );
 
 
    //- Destructor
    virtual ~noPreconditioner()
    {}
 
 
    // Member Functions
 
        //- Return wA the preconditioned form of residual rA
        virtual void precondition
        (
            scalarField& wA,
            const scalarField& rA,
            const direction cmpt=0
        ) const;
 
        //- Return wT the transpose-matrix preconditioned form of residual rT.
        virtual void preconditionT
        (
            scalarField& wT,
            const scalarField& rT,
            const direction cmpt=0
        ) const
        {
            return precondition(wT, rT, cmpt);
        }
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //