mirror of
https://github.com/OPM/opm-simulators.git
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266 lines
8.6 KiB
C++
266 lines
8.6 KiB
C++
// -*- mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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// vi: set et ts=4 sw=4 sts=4:
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/*
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This file is part of the Open Porous Media project (OPM).
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OPM is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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OPM is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License 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 OPM. If not, see <http://www.gnu.org/licenses/>.
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Consult the COPYING file in the top-level source directory of this
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module for the precise wording of the license and the list of
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copyright holders.
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*/
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/*!
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* \file
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*
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* \copydoc Opm::AluCartesianIndexMapper
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*/
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#ifndef EWOMS_ALU_CARTESIAN_INDEX_MAPPER_HH
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#define EWOMS_ALU_CARTESIAN_INDEX_MAPPER_HH
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#include <dune/alugrid/grid.hh>
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#include <dune/alugrid/3d/gridview.hh>
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#include <opm/grid/common/CartesianIndexMapper.hpp>
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#include <dune/grid/common/datahandleif.hh>
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#include <dune/grid/utility/persistentcontainer.hh>
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#include <array>
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#include <cassert>
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#include <cstddef>
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#include <memory>
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#include <stdexcept>
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#include <vector>
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namespace Dune {
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/*!
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* \brief Interface class to access the logical Cartesian grid as used in industry
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* standard simulator decks.
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*/
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//#if HAVE_MPI
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template <>
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class CartesianIndexMapper<Dune::ALUGrid<3, 3, Dune::cube, Dune::nonconforming>>
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{
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public:
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#if HAVE_MPI
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using Grid = Dune::ALUGrid<3, 3, Dune::cube, Dune::nonconforming, Dune::ALUGridMPIComm>;
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#else
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using Grid = Dune::ALUGrid<3, 3, Dune::cube, Dune::nonconforming, Dune::ALUGridNoComm>;
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#endif //HAVE_MPI
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// data handle for communicating global ids during load balance and communication
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template <class GridView>
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class GlobalIndexDataHandle : public Dune::CommDataHandleIF<GlobalIndexDataHandle<GridView>, int>
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{
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// global id
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class GlobalCellIndex
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{
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public:
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GlobalCellIndex()
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: idx_(-1)
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{}
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GlobalCellIndex& operator=(const int index)
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{
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idx_ = index;
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return *this;
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}
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int index() const
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{ return idx_; }
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private:
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int idx_;
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};
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using GlobalIndexContainer = typename Dune::PersistentContainer<Grid, GlobalCellIndex>;
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public:
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// constructor copying cartesian index to persistent container
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GlobalIndexDataHandle(const GridView& gridView,
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std::vector<int>& cartesianIndex)
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: gridView_(gridView)
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, globalIndex_(gridView.grid(), 0)
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, cartesianIndex_(cartesianIndex)
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{
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globalIndex_.resize();
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initialize();
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}
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// constructor copying cartesian index to persistent container
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GlobalIndexDataHandle(const GlobalIndexDataHandle& other) = delete ;
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// destrcutor writing load balanced cartesian index back to vector
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~GlobalIndexDataHandle()
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{ finalize(); }
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bool contains(int /* dim */, int codim) const
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{ return codim == 0; }
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bool fixedsize(int /* dim */, int /* codim */) const
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{ return true; }
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//! \brief loop over all internal data handlers and call gather for
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//! given entity
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template<class MessageBufferImp, class EntityType>
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void gather(MessageBufferImp& buff, const EntityType& element) const
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{
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int globalIdx = globalIndex_[element].index();
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buff.write(globalIdx);
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}
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//! \brief loop over all internal data handlers and call scatter for
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//! given entity
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template<class MessageBufferImp, class EntityType>
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void scatter(MessageBufferImp& buff, const EntityType& element, std::size_t /* n */)
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{
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int globalIdx = -1;
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buff.read(globalIdx);
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if (globalIdx >= 0)
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{
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globalIndex_.resize();
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globalIndex_[element] = globalIdx;
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}
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}
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//! \brief loop over all internal data handlers and return sum of data
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//! size of given entity
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template<class EntityType>
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std::size_t size(const EntityType& /* en */) const
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{ return 1; }
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protected:
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// initialize persistent container from given vector
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void initialize()
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{
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auto idx = cartesianIndex_.begin();
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auto it = gridView_.template begin<0>();
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const auto& endIt = gridView_.template end<0>();
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for (; it != endIt; ++it, ++idx)
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globalIndex_[*it] = *idx;
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}
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// update vector from given persistent container
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void finalize()
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{
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std::vector<int> newIndex ;
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newIndex.reserve(gridView_.indexSet().size(0));
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auto it = gridView_.template begin<0>();
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const auto& endIt = gridView_.template end<0>();
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for (; it != endIt; ++it)
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newIndex.push_back(globalIndex_[*it].index()) ;
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cartesianIndex_.swap(newIndex);
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}
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GridView gridView_;
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GlobalIndexContainer globalIndex_;
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std::vector<int>& cartesianIndex_;
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};
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public:
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/** \brief dimension of the grid */
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static constexpr int dimension = Grid::dimension ;
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/** \brief constructor taking grid */
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CartesianIndexMapper(const Grid& grid,
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const std::array<int, dimension>& cartDims,
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const std::vector<int>& cartesianIndex)
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: grid_(grid)
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, cartesianDimensions_(cartDims)
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, cartesianIndex_(cartesianIndex)
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, cartesianSize_(computeCartesianSize())
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{}
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/** \brief return Cartesian dimensions, i.e. number of cells in each direction */
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const std::array<int, dimension>& cartesianDimensions() const
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{ return cartesianDimensions_; }
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/** \brief return total number of cells in the logical Cartesian grid */
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int cartesianSize() const
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{ return cartesianSize_; }
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/** \brief return number of cells in the active grid */
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int compressedSize() const
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{ return cartesianIndex_.size(); }
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/** \brief return index of the cells in the logical Cartesian grid */
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int cartesianIndex(const int compressedElementIndex) const
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{
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assert(compressedElementIndex < compressedSize());
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return cartesianIndex_[compressedElementIndex];
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}
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/** \brief return index of the cells in the logical Cartesian grid */
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int cartesianIndex(const std::array<int, dimension>& coords) const
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{
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int cartIndex = coords[0];
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int factor = cartesianDimensions()[0];
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for (int i=1; i < dimension; ++i) {
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cartIndex += coords[i] * factor;
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factor *= cartesianDimensions()[i];
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}
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return cartIndex;
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}
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/** \brief return Cartesian coordinate, i.e. IJK, for a given cell */
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void cartesianCoordinate(const int compressedElementIndex, std::array<int, dimension>& coords) const
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{
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int gc = cartesianIndex(compressedElementIndex);
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if constexpr (dimension == 3) {
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coords[0] = gc % cartesianDimensions()[0];
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gc /= cartesianDimensions()[0];
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coords[1] = gc % cartesianDimensions()[1];
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coords[2] = gc / cartesianDimensions()[1];
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}
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else if constexpr (dimension == 2) {
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coords[0] = gc % cartesianDimensions()[0];
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coords[1] = gc / cartesianDimensions()[0];
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}
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else if constexpr (dimension == 1)
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coords[0] = gc ;
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else
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throw std::invalid_argument("cartesianCoordinate not implemented for dimension " + std::to_string(dimension));
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}
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template <class GridView>
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std::unique_ptr<GlobalIndexDataHandle<GridView> > dataHandle(const GridView& gridView)
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{
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using DataHandle = GlobalIndexDataHandle<GridView>;
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assert(&grid_ == &gridView.grid());
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return std::make_unique<DataHandle>(gridView, cartesianIndex_);
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}
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protected:
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int computeCartesianSize() const
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{
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int size = cartesianDimensions()[0];
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for (int d=1; d<dimension; ++d)
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size *= cartesianDimensions()[d];
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return size ;
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}
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const Grid& grid_;
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const std::array<int, dimension> cartesianDimensions_;
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std::vector<int> cartesianIndex_;
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const int cartesianSize_ ;
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};
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} // end namespace Dune
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#endif
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