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Diffstat (limited to 'src/functors/lattice/superLocalAverage3D.hh')
-rw-r--r-- | src/functors/lattice/superLocalAverage3D.hh | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/src/functors/lattice/superLocalAverage3D.hh b/src/functors/lattice/superLocalAverage3D.hh new file mode 100644 index 0000000..53b3a6b --- /dev/null +++ b/src/functors/lattice/superLocalAverage3D.hh @@ -0,0 +1,123 @@ +/* This file is part of the OpenLB library + * + * Copyright (C) 2018 Adrian Kummerlaender + * E-mail contact: info@openlb.net + * The most recent release of OpenLB can be downloaded at + * <http://www.openlb.net/> + * + * This program 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 2 + * of the License, or (at your option) any later version. + * + * This program 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 this program; if not, write to the Free + * Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301, USA. +*/ + +#ifndef SUPER_LOCAL_AVERAGE_3D_HH +#define SUPER_LOCAL_AVERAGE_3D_HH + +#include "superLocalAverage3D.h" +#include "blockLocalAverage3D.h" +#include "indicator/superIndicatorF3D.h" + +namespace olb { + + +template<typename T, typename W> +SuperLocalAverage3D<T,W>::SuperLocalAverage3D( + FunctorPtr<SuperF3D<T>>&& f, + FunctorPtr<SuperIndicatorF3D<T>>&& indicatorF, + T radius) + : SuperF3D<T,W>(f->getSuperStructure(), f->getTargetDim()), + _f(std::move(f)), + _indicatorF(std::move(indicatorF)), + _radius(radius) +{ + this->getName() = "LocalAverage(" + _f->getName() + ")"; + + LoadBalancer<T>& load = _f->getSuperStructure().getLoadBalancer(); + + if ( _f->getBlockFSize() == load.size() && + _indicatorF->getBlockFSize() == load.size() ) { + for (int iC = 0; iC < load.size(); ++iC) { + this->_blockF.emplace_back( + new BlockLocalAverage3D<T,W>(_f->getBlockF(iC), + _indicatorF->getBlockIndicatorF(iC), + _radius) + ); + } + } +} + +template<typename T, typename W> +bool SuperLocalAverage3D<T,W>::operator() (W output[], const int input[]) +{ + const auto& geometry = this->getSuperStructure().getCuboidGeometry(); + const auto& load = this->getSuperStructure().getLoadBalancer(); + + for (int i = 0; i < this->getTargetDim(); ++i) { + output[i] = 0.; + } + + if (!_indicatorF(input)) { + return true; + } + + T centerOfSphere[3]; + geometry.getPhysR(centerOfSphere, input); + IndicatorSphere3D<T> analyticalSphere(centerOfSphere, _radius); + SuperIndicatorFfromIndicatorF3D<T> latticeSphere( + analyticalSphere, + _indicatorF->getSuperGeometry()); + + std::size_t voxels(0); + int inputTmp[4]; + + for (int iC = 0; iC < load.size(); ++iC) { + inputTmp[0] = load.glob(iC); + const auto& cuboid = geometry.get(inputTmp[0]); + + for (inputTmp[1] = 0; inputTmp[1] < cuboid.getNx(); ++inputTmp[1]) { + for (inputTmp[2] = 0; inputTmp[2] < cuboid.getNy(); ++inputTmp[2]) { + for (inputTmp[3] = 0; inputTmp[3] < cuboid.getNz(); ++inputTmp[3]) { + if (latticeSphere(inputTmp) && _indicatorF(inputTmp)) { + T outputTmp[_f->getTargetDim()]; + _f(outputTmp, inputTmp); + for (int i = 0; i < this->getTargetDim(); ++i) { + output[i] += outputTmp[i]; + } + voxels += 1; + } + } + } + } + } + +#ifdef PARALLEL_MODE_MPI + singleton::mpi().reduceAndBcast(voxels, MPI_SUM); +#endif + + if (voxels > 0) { + for (int i = 0; i < this->getTargetDim(); ++i) { +#ifdef PARALLEL_MODE_MPI + singleton::mpi().reduceAndBcast(output[i], MPI_SUM); +#endif + output[i] /= voxels; + } + } + + return true; +} + + +} + +#endif |