parallel_coloring.h

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/*
 * Copyright (c) 2011-2014:  G-CSC, Goethe University Frankfurt
 * Author: Martin Rupp
 * 
 * This file is part of UG4.
 * 
 * UG4 is free software: you can redistribute it and/or modify it under the
 * terms of the GNU Lesser General Public License version 3 (as published by the
 * Free Software Foundation) with the following additional attribution
 * requirements (according to LGPL/GPL v3 §7):
 * 
 * (1) The following notice must be displayed in the Appropriate Legal Notices
 * of covered and combined works: "Based on UG4 (www.ug4.org/license)".
 * 
 * (2) The following notice must be displayed at a prominent place in the
 * terminal output of covered works: "Based on UG4 (www.ug4.org/license)".
 * 
 * (3) The following bibliography is recommended for citation and must be
 * preserved in all covered files:
 * "Reiter, S., Vogel, A., Heppner, I., Rupp, M., and Wittum, G. A massively
 *   parallel geometric multigrid solver on hierarchically distributed grids.
 *   Computing and visualization in science 16, 4 (2013), 151-164"
 * "Vogel, A., Reiter, S., Rupp, M., Nägel, A., and Wittum, G. UG4 -- a novel
 *   flexible software system for simulating pde based models on high performance
 *   computers. Computing and visualization in science 16, 4 (2013), 165-179"
 * 
 * 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 Lesser General Public License for more details.
 */
 
#include <map>
#include <vector>
#include <set>
#include "parallelization_util.h"
 
namespace ug
{
extern DebugID DBG_COLORING;
 
class ParallelColoring
{
public:
  ParallelColoring() : p_colors(NULL), p_processesWithLowerColor(NULL), p_processesWithHigherColor(NULL)
  {
 
  }
  void set_connections(std::set<int> &pids_)
  {
    pids = pids_;
  }
  /*void set_connections(pcl::InterfaceCommunicator<IndexLayout> &master,
      pcl::InterfaceCommunicator<IndexLayout> &slave, bool bAddSlaveSlave)
  {
  }*/
 
  int color(pcl::InterfaceCommunicator<IndexLayout> &com);
 
  void save_processes_with_lower_color_in(std::vector<int> *p)
  {
    p_processesWithLowerColor = p;
  }
 
  void save_processes_with_higher_color_in(std::vector<int> *p)
  {
    p_processesWithHigherColor = p;
  }
 
  void save_colors_in(std::map<int, int> *p)
  {
    p_colors = p;
  }
 
private:
  std::map<int, int> *p_colors;
  std::vector<int> *p_processesWithLowerColor;
  std::vector<int> *p_processesWithHigherColor;
  std::set<int> pids;
};
 
int ColorProcessorGraph(pcl::InterfaceCommunicator<IndexLayout> &com, std::set<int> &pids,
    std::vector<int> &processesWithLowerColor,
    std::vector<int> &processesWithHigherColor);
 
}