119 lines
3.4 KiB
C
119 lines
3.4 KiB
C
/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration |
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\\ / A nd | Copyright (C) 2011-2015 OpenFOAM Foundation
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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This file is part of OpenFOAM.
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OpenFOAM is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
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\*---------------------------------------------------------------------------*/
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#include "DICSmoother.H"
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#include "DICPreconditioner.H"
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// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
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namespace Foam
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{
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defineTypeNameAndDebug(DICSmoother, 0);
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lduMatrix::smoother::addsymMatrixConstructorToTable<DICSmoother>
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addDICSmootherSymMatrixConstructorToTable_;
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}
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// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
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Foam::DICSmoother::DICSmoother
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(
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const word& fieldName,
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const lduMatrix& matrix,
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const FieldField<Field, scalar>& interfaceBouCoeffs,
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const FieldField<Field, scalar>& interfaceIntCoeffs,
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const lduInterfaceFieldPtrsList& interfaces
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)
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:
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lduMatrix::smoother
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(
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fieldName,
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matrix,
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interfaceBouCoeffs,
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interfaceIntCoeffs,
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interfaces
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),
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rD_(matrix_.diag())
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{
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DICPreconditioner::calcReciprocalD(rD_, matrix_);
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}
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// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
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void Foam::DICSmoother::smooth
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(
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scalarField& psi,
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const scalarField& source,
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const direction cmpt,
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const label nSweeps
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) const
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{
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const scalar* const __restrict__ rDPtr = rD_.begin();
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const scalar* const __restrict__ upperPtr = matrix_.upper().begin();
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const label* const __restrict__ uPtr =
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matrix_.lduAddr().upperAddr().begin();
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const label* const __restrict__ lPtr =
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matrix_.lduAddr().lowerAddr().begin();
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// Temporary storage for the residual
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scalarField rA(rD_.size());
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scalar* __restrict__ rAPtr = rA.begin();
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for (label sweep=0; sweep<nSweeps; sweep++)
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{
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matrix_.residual
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(
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rA,
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psi,
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source,
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interfaceBouCoeffs_,
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interfaces_,
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cmpt
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);
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rA *= rD_;
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label nFaces = matrix_.upper().size();
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for (label facei=0; facei<nFaces; facei++)
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{
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label u = uPtr[facei];
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rAPtr[u] -= rDPtr[u]*upperPtr[facei]*rAPtr[lPtr[facei]];
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}
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label nFacesM1 = nFaces - 1;
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for (label facei=nFacesM1; facei>=0; facei--)
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{
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label l = lPtr[facei];
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rAPtr[l] -= rDPtr[l]*upperPtr[facei]*rAPtr[uPtr[facei]];
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}
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psi += rA;
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}
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}
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// ************************************************************************* //
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