distributed_grid_impl.hpp

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/*
 * Copyright (c) 2010-2015:  G-CSC, Goethe University Frankfurt
 * Author: Sebastian Reiter
 * 
 * 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.
 */
 
#ifndef __H__LIB_GRID__DISTRIBUTED_GRID_IMPL__
#define __H__LIB_GRID__DISTRIBUTED_GRID_IMPL__
 
#include <vector>
#include <utility>
 
namespace ug
{
 
template <class TElem>
bool DistributedGridManager::
is_interface_element(TElem* elem)
{
  return elem_info(elem).get_status() & ES_IN_INTERFACE;
}
 
template<class TElem>
inline bool DistributedGridManager::
is_in_horizontal_interface(TElem* elem) const
{
  byte status = get_status(elem);
  return  (status & (ES_H_MASTER | ES_H_SLAVE)) != 0;
}
 
template<class TElem>
inline bool DistributedGridManager::
is_in_vertical_interface(TElem* elem) const
{
  byte status = get_status(elem);
  return  (status & (ES_V_MASTER | ES_V_SLAVE)) != 0;
}
 
template<class TElem>
inline bool DistributedGridManager::
is_ghost(TElem* elem) const
{
  byte status = get_status(elem);
  return  (status & (ES_V_MASTER | ES_H_MASTER | ES_H_SLAVE))
      == ES_V_MASTER;
 
  //would require update_ghost_states
  //return contains_status(elem, ES_GHOST);
}
 
template <class TElem>
void DistributedGridManager::
collect_interface_entries(
        std::vector<std::pair<int, size_t> >& vEntriesOut,
        TElem* elem, byte statusType, bool clearContainer)
{
//TODO: make sure that the localIDs match the position at which
//    an element is stored in the interface
  typedef ElementInfo<TElem> ElemInfo;
  ElemInfo& info = elem_info(elem);
 
  if(clearContainer)
    vEntriesOut.clear();
 
  for(typename ElemInfo::EntryIterator iter = info.entries_begin();
    iter != info.entries_end(); ++iter)
  {
    if((info.get_interface_type(iter) & statusType) == statusType){
      vEntriesOut.push_back(std::make_pair(info.get_target_proc(iter),
                      info.get_local_id(iter)));
    }
  }
}
 
}// end of namespace
 
#endif