FDICSmoother.H

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License
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Class
    Foam::FDICSmoother

Description
    Simplified diagonal-based incomplete Cholesky smoother for symmetric
    matrices.

    To improve efficiency, the residual is evaluated after every nSweeps
    sweeps.

SourceFiles
    FDICSmoother.C

\*---------------------------------------------------------------------------*/

#ifndef FDICSmoother_H
#define FDICSmoother_H

#include "lduMatrix.H"

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

namespace Foam
{

/*---------------------------------------------------------------------------*\
                           Class FDICSmoother Declaration
\*---------------------------------------------------------------------------*/

class FDICSmoother
:
    public lduMatrix::smoother
{
    // Private data

        //- The reciprocal preconditioned diagonal
        scalarField rD_;
        scalarField rDuUpper_;
        scalarField rDlUpper_;


public:

    //- Runtime type information
    TypeName("FDIC");


    // Constructors

        //- Construct from matrix components
        FDICSmoother
        (
            const word& fieldName,
            const lduMatrix& matrix,
            const FieldField<Field, scalar>& interfaceBouCoeffs,
            const FieldField<Field, scalar>& interfaceIntCoeffs,
            const lduInterfaceFieldPtrsList& interfaces
        );


    // Member Functions

        //- Smooth the solution for a given number of sweeps
        void smooth
        (
            scalarField& psi,
            const scalarField& source,
            const direction cmpt,
            const label nSweeps
        ) const;
};


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

} // End namespace Foam

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

#endif

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