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========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Copyright (C) 2013-2026 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
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.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
\*---------------------------------------------------------------------------*/
#include "GAMGSolver.H"
// * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * //
void Foam::GAMGSolver::interpolate
(
scalarField& psi,
scalarField& Apsi,
const lduMatrix& m,
const Field<Field<scalar>>& interfaceBouCoeffs,
const lduInterfaceFieldPtrsList& interfaces,
const direction cmpt
) const
{
scalar* __restrict__ psiPtr = psi.begin();
const label* const __restrict__ uPtr = m.lduAddr().upperAddr().begin();
const label* const __restrict__ lPtr = m.lduAddr().lowerAddr().begin();
const scalar* const __restrict__ diagPtr = m.diag().begin();
const scalar* const __restrict__ upperPtr = m.upper().begin();
const scalar* const __restrict__ lowerPtr = m.lower().begin();
Apsi = 0;
scalar* __restrict__ ApsiPtr = Apsi.begin();
m.initMatrixInterfaces
(
interfaceBouCoeffs,
interfaces,
psi,
Apsi,
cmpt
);
const label nFaces = m.upper().size();
for (label face=0; face<nFaces; face++)
{
ApsiPtr[uPtr[face]] += lowerPtr[face]*psiPtr[lPtr[face]];
ApsiPtr[lPtr[face]] += upperPtr[face]*psiPtr[uPtr[face]];
}
m.updateMatrixInterfaces
(
interfaceBouCoeffs,
interfaces,
psi,
Apsi,
cmpt
);
const label nCells = m.diag().size();
for (label celli=0; celli<nCells; celli++)
{
psiPtr[celli] = -ApsiPtr[celli]/(diagPtr[celli]);
}
}
void Foam::GAMGSolver::interpolate
(
scalarField& psi,
scalarField& Apsi,
const lduMatrix& m,
const Field<Field<scalar>>& interfaceBouCoeffs,
const lduInterfaceFieldPtrsList& interfaces,
const labelList& restrictAddressing,
const scalarField& psiC,
const direction cmpt
) const
{
interpolate
(
psi,
Apsi,
m,
interfaceBouCoeffs,
interfaces,
cmpt
);
const label nCells = m.diag().size();
scalar* __restrict__ psiPtr = psi.begin();
const scalar* const __restrict__ diagPtr = m.diag().begin();
const label nCCells = psiC.size();
scalarField corrC(nCCells, 0);
scalarField diagC(nCCells, 0);
for (label celli=0; celli<nCells; celli++)
{
corrC[restrictAddressing[celli]] += diagPtr[celli]*psiPtr[celli];
diagC[restrictAddressing[celli]] += diagPtr[celli];
}
for (label ccelli=0; ccelli<nCCells; ccelli++)
{
corrC[ccelli] = psiC[ccelli] - corrC[ccelli]/diagC[ccelli];
}
for (label celli=0; celli<nCells; celli++)
{
psiPtr[celli] += corrC[restrictAddressing[celli]];
}
}
// ************************************************************************* //
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