source: src/comm/mpi/comm_key.cpp@ 138f86

/**
 * @file   comm_key.cpp
 * @author Julian Iseringhausen <isering@ins.uni-bonn.de>
 * @date   Mon Nov 21 13:27:22 2011
 *
 * @brief  Class to distinguish the different communicators for
 *         different grids.
 *
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include "comm/mpi/comm_key.hpp"
#include "grid/grid.hpp"

using namespace VMG;

VMG::MPI::CommKey::CommKey()
{
}

VMG::MPI::CommKey::CommKey(const Grid& grid)
{
  AddKey(grid);
}

VMG::MPI::CommKey::CommKey(const Grid& grid_1, const Grid& grid_2)
{
  AddKey(grid_1);
  AddKey(grid_2);
}

VMG::MPI::CommKey::CommKey(const GlobalIndices& global, const void* addr)
{
  AddKey(global, addr);
}

void VMG::MPI::CommKey::AddKey(const Grid& grid)
{
  for (int i=0; i<3; ++i) {
    int_key.push_back(grid.Global().BeginLocal()[i]);
    int_key.push_back(grid.Global().EndLocal()[i]);
    int_key.push_back(grid.Global().SizeGlobal()[i]);
  }
  addr_key.push_back(reinterpret_cast<const void*>(&grid));
}

void VMG::MPI::CommKey::AddKey(const GlobalIndices& global, const void* addr)
{
  for (int i=0; i<3; ++i) {
    int_key.push_back(global.BeginLocal()[i]);
    int_key.push_back(global.EndLocal()[i]);
    int_key.push_back(global.SizeGlobal()[i]);
  }
  addr_key.push_back(addr);
}

bool VMG::MPI::CommKey::operator<(const CommKey& other) const
{
  if (this->int_key.size() < other.int_key.size())
    return true;
  else if (this->int_key.size() > other.int_key.size())
    return false;

  if (this->addr_key.size() < other.addr_key.size())
    return true;
  else if (this->addr_key.size() > other.addr_key.size())
    return false;

  for (unsigned int i=0; i<int_key.size(); ++i)
    if (this->int_key[i] < other.int_key[i])
      return true;
    else if (this->int_key[i] > other.int_key[i])
      return false;

  for (unsigned int i=0; i<addr_key.size(); ++i)
    if (this->addr_key[i] < other.addr_key[i])
      return true;
    else if (this->addr_key[i] > other.addr_key[i])
      return false;

  return false;
}