1 /*---------------------------------------------------------------------------*\
3 \\ / F ield | foam-extend: Open Source CFD
4 \\ / O peration | Version: 3.2
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28 Incmplete Cholesky preconditioning with no fill-in for symmeytric matrices
31 Hrvoje Jasak, Wikki Ltd. All rights reserved
36 \*---------------------------------------------------------------------------*/
38 #ifndef CholeskyPrecon_H
39 #define CholeskyPrecon_H
41 #include "lduMatrix.H"
43 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
48 /*---------------------------------------------------------------------------*\
49 Class CholeskyPrecon Declaration
50 \*---------------------------------------------------------------------------*/
54 public lduPreconditioner
58 //- Preconditioned diagonal
59 scalarField preconDiag_;
62 // Private Member Functions
64 //- Disallow default bitwise copy construct
65 CholeskyPrecon(const CholeskyPrecon&);
67 //- Disallow default bitwise assignment
68 void operator=(const CholeskyPrecon&);
70 //- Precondition the diagonal
71 void calcPreconDiag();
76 //- Runtime type information
82 //- Construct from matrix and dictionary
85 const lduMatrix& matrix,
86 const FieldField<Field, scalar>& coupleBouCoeffs,
87 const FieldField<Field, scalar>& coupleIntCoeffs,
88 const lduInterfaceFieldPtrsList& interfaces,
89 const dictionary& dict
92 //- Construct from matrix as a smoother
95 const lduMatrix& matrix,
96 const FieldField<Field, scalar>& coupleBouCoeffs,
97 const FieldField<Field, scalar>& coupleIntCoeffs,
98 const lduInterfaceFieldPtrsList& interfaces
104 virtual ~CholeskyPrecon();
109 //- Execute preconditioning
110 virtual void precondition
113 const scalarField& rA,
114 const direction cmpt = 0
119 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
121 } // End namespace Foam
123 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
127 // ************************************************************************* //