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/* This file is part of the OpenLB library
*
* Copyright (C) 2007, 2014 Mathias Krause, Peter Weisbrod
* E-mail contact: info@openlb.net
* The most recent release of OpenLB can be downloaded at
* <http://www.openlb.net/>
*
* 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 LOAD_BALANCER_HH
#define LOAD_BALANCER_HH
#include "communication/loadBalancer.h"
namespace olb {
template<typename T>
LoadBalancer<T>::LoadBalancer(int size) : _size(size)
{}
template<typename T>
LoadBalancer<T>::LoadBalancer(int size, std::map<int,int>& loc, std::vector<int>& glob, std::map<int,int>& rank)
: _size(size), _loc(loc), _glob(glob), _rank(rank)
{}
template<typename T>
LoadBalancer<T>::~LoadBalancer()
{}
template<typename T>
void LoadBalancer<T>::swap(LoadBalancer<T>& loadBalancer)
{
std::swap(_size, loadBalancer._size);
_loc.swap(loadBalancer._loc);
_glob.swap(loadBalancer._glob);
_rank.swap(loadBalancer._rank);
}
template<typename T>
bool LoadBalancer<T>::isLocal(const int& glob)
{
return rank(glob) == singleton::mpi().getRank();
}
template<typename T>
int LoadBalancer<T>::loc(const int& glob)
{
return _loc[glob];
}
template<typename T>
int LoadBalancer<T>::loc(int glob) const
{
std::map<int,int>::const_iterator iter = _loc.find(glob);
return iter->second;
}
template<typename T>
int LoadBalancer<T>::glob(int loc) const
{
return _glob[loc];
}
template<typename T>
int LoadBalancer<T>::rank(const int& glob)
{
return _rank[glob];
}
template<typename T>
int LoadBalancer<T>::rank(int glob) const
{
std::map<int,int>::const_iterator iter = _rank.find(glob);
return iter->second;
}
template<typename T>
int LoadBalancer<T>::size() const
{
return _size;
}
template<typename T>
bool LoadBalancer<T>::operator==(const LoadBalancer<T>& rhs) const
{
return _size == rhs._size &&
_loc == rhs._loc &&
_glob == rhs._glob &&
_rank == rhs._rank;
}
template<typename T>
size_t LoadBalancer<T>::getNblock() const
{
return 4 // _size, plus vector length of _loc, _glob and _rank
+ _loc.size()
+ _rank.size()
+ _glob.size();
}
template<typename T>
size_t LoadBalancer<T>::getSerializableSize() const
{
return sizeof(int) // _size
+ 3 * sizeof(size_t) // vector length of _loc, _glob and _rank
+ _loc.size() * sizeof(std::pair<int, int>)
+ _rank.size() * sizeof(std::pair<int, int>)
+ _glob.size() * sizeof(int);
}
template<typename T>
bool* LoadBalancer<T>::getBlock(std::size_t iBlock, std::size_t& sizeBlock, bool loadingMode)
{
std::size_t currentBlock = 0;
size_t sizeBufferIndex = 0;
bool* dataPtr = nullptr;
this->registerVar<int> (iBlock, sizeBlock, currentBlock, dataPtr, _size);
this->registerMap<int, int> (iBlock, sizeBlock, currentBlock, sizeBufferIndex, dataPtr, _loc, loadingMode);
this->registerStdVectorOfVars<int>(iBlock, sizeBlock, currentBlock, sizeBufferIndex, dataPtr, _glob, loadingMode);
this->registerMap<int, int> (iBlock, sizeBlock, currentBlock, sizeBufferIndex, dataPtr, _rank, loadingMode);
return dataPtr;
}
template<typename T>
void LoadBalancer<T>::print(bool multiOutput) const
{
OstreamManager clout(std::cout,"LoadBalancer");
clout.setMultiOutput(multiOutput);
for (unsigned i = 0; i < this->_glob.size(); i++) {
clout << "glob[" << i << "]=" << this->_glob[i] << std::endl;
}
for (auto it = this->_loc.cbegin(); it != this->_loc.cend();
it++) {
clout << "loc[" << (*it).first << "]=" << (*it).second << std::endl;
}
for (auto it = this->_rank.cbegin(); it != this->_rank.cend();
it++) {
clout << "rank[" << (*it).first << "]=" << (*it).second << std::endl;
}
clout.setMultiOutput(false);
}
} // namespace olb
#endif
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