noPreconditioner.H

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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

// ************************************************************************* //