/* This file is part of the OpenLB library * * Copyright (C) 2012 Jonas Fietz, Mathias J. Krause * E-mail contact: info@openlb.net * The most recent release of OpenLB can be downloaded at * * * 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 HEURISTIC_LOAD_BALANCER_H #define HEURISTIC_LOAD_BALANCER_H #include "communication/mpiManager.h" #include "geometry/cuboidGeometry2D.h" #include "geometry/cuboid3D.h" #include "geometry/cuboid3D.hh" #include "geometry/cuboidGeometry3D.h" #include "geometry/cuboidGeometry3D.hh" #include "communication/loadBalancer.h" namespace olb { /** Constructs a load balancer from a given cuboid geometry using a heurist. * \param cGeometry cuboid geometry to base the load balance on * \param blockGeometry used to determine number of full and empty cells if given * \param ratioFullEmpty time it takes for full cells in relation to empty cells * * This class has a virtual method call in its destructor and should therefore * not be used as a base class. */ template class HeuristicLoadBalancer final : public LoadBalancer { private: // Handles the MPI communication #ifdef PARALLEL_MODE_MPI singleton::MpiNonBlockingHelper _mpiNbHelper; #endif CuboidGeometry3D* _cGeometry3d; CuboidGeometry2D* _cGeometry2d; double _ratioFullEmpty; public: HeuristicLoadBalancer() {}; ~HeuristicLoadBalancer() override; HeuristicLoadBalancer(CuboidGeometry3D& cGeometry3d, const double ratioFullEmpty=1., const double weightEmpty=.0); HeuristicLoadBalancer(CuboidGeometry2D& cGeometry2d, const double ratioFullEmpty=1., const double weightEmpty=.0); void reInit(CuboidGeometry3D& cGeometry3d, const double ratioFullEmpty=1., const double weightEmpty=.0) override; void reInit(CuboidGeometry2D& cGeometry2d, const double ratioFullEmpty=1., const double weightEmpty=.0) override; /// Swap method void swap(HeuristicLoadBalancer& loadBalancer); /// Write itself into Stringstream void writeToStream(std::ostream& stream) override; /// Write itself into File void writeToFile(std::string fileName) override; }; } // namespace olb #endif