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periodic_node_synchronizer.hh
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/**
* @file periodic_node_synchronizer.hh
*
* @author Nicolas Richart <nicolas.richart@epfl.ch>
*
* @date creation: Wed May 30 2018
* @date last modification: Fri Jul 24 2020
*
* @brief PeriodicNodeSynchronizer definition
*
*
* @section LICENSE
*
* Copyright (©) 2018-2021 EPFL (Ecole Polytechnique Fédérale de Lausanne)
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
* Akantu is free software: you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option) any
* later version.
*
* Akantu 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.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Akantu. If not, see <http://www.gnu.org/licenses/>.
*
*/
/* -------------------------------------------------------------------------- */
#include "node_synchronizer.hh"
/* -------------------------------------------------------------------------- */
#ifndef AKANTU_PERIODIC_NODE_SYNCHRONIZER_HH_
#define AKANTU_PERIODIC_NODE_SYNCHRONIZER_HH_
namespace akantu {
class PeriodicNodeSynchronizer : public NodeSynchronizer {
public:
PeriodicNodeSynchronizer(
Mesh & mesh, const ID & id = "periodic_node_synchronizer",
bool register_to_event_manager = true,
EventHandlerPriority event_priority = _ehp_synchronizer);
/* ------------------------------------------------------------------------ */
/* Methods */
/* ------------------------------------------------------------------------ */
public:
void update();
/// Uses the synchronizer to perform a reduction on the vector
template <template <class> class Op, typename T>
void reduceSynchronizeWithPBCSlaves(Array<T> & array) const;
/// synchronize ghosts without state
void synchronizeOnceImpl(DataAccessor<Idx> & data_accessor,
const SynchronizationTag & tag) const override;
/// wait end of asynchronous synchronization of ghosts
void waitEndSynchronizeImpl(DataAccessor<Idx> & data_accessor,
const SynchronizationTag & tag) override;
/* ------------------------------------------------------------------------ */
/* Class Members */
/* ------------------------------------------------------------------------ */
private:
// NodeSynchronizer master_to_slaves_synchronizer;
Array<Idx> masters_list;
Array<Idx> slaves_list;
};
/* -------------------------------------------------------------------------- */
template <template <class> class Op, typename T>
void PeriodicNodeSynchronizer::reduceSynchronizeWithPBCSlaves(
Array<T> & array) const {
ReduceDataAccessor<Idx, Op, T> data_accessor(array,
SynchronizationTag::_whatever);
auto size =
data_accessor.getNbData(slaves_list, SynchronizationTag::_whatever);
CommunicationBuffer buffer(size);
data_accessor.packData(buffer, slaves_list, SynchronizationTag::_whatever);
data_accessor.unpackData(buffer, masters_list, SynchronizationTag::_whatever);
this->reduceSynchronizeArray<Op>(array);
}
} // namespace akantu
#endif /* AKANTU_PERIODIC_NODE_SYNCHRONIZER_HH_ */

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