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dof_synchronizer.hh
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/**
* @file dof_synchronizer.hh
*
* @author Aurelia Isabel Cuba Ramos <aurelia.cubaramos@epfl.ch>
* @author Nicolas Richart <nicolas.richart@epfl.ch>
*
* @date creation: Fri Jun 17 2011
* @date last modification: Tue Feb 20 2018
*
* @brief Synchronize Array of DOFs
*
* @section LICENSE
*
* Copyright (©) 2010-2018 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 "aka_array.hh"
#include "aka_common.hh"
#include "synchronizer_impl.hh"
/* -------------------------------------------------------------------------- */
namespace akantu {
class Mesh;
class DOFManagerDefault;
} // namespace akantu
#ifndef __AKANTU_DOF_SYNCHRONIZER_HH__
#define __AKANTU_DOF_SYNCHRONIZER_HH__
namespace akantu {
class DOFSynchronizer : public SynchronizerImpl<UInt> {
/* ------------------------------------------------------------------------ */
/* Constructors/Destructors */
/* ------------------------------------------------------------------------ */
public:
DOFSynchronizer(DOFManagerDefault & dof_manager,
const ID & id = "dof_synchronizer", MemoryID memory_id = 0);
~DOFSynchronizer() override;
virtual void registerDOFs(const ID & dof_id);
/* ------------------------------------------------------------------------ */
/* Methods */
/* ------------------------------------------------------------------------ */
public:
template <typename T>
/// Gather the DOF value on the root proccessor
void gather(const Array<T> & to_gather, Array<T> & gathered);
/// Gather the DOF value on the root proccessor
template <typename T> void gather(const Array<T> & to_gather);
/// Scatter a DOF Array form root to all processors
template <typename T>
void scatter(Array<T> & scattered, const Array<T> & to_scatter);
/// Scatter a DOF Array form root to all processors
template <typename T> void scatter(Array<T> & scattered);
/// Uses the synchronizer to perform a reduction on the vector
template <template <class> class Op, typename T>
void reduceSynchronize(Array<T> & array) const;
template <typename T> void synchronize(Array<T> & vector) const;
void onNodesAdded(const Array<UInt> & nodes);
protected:
/// check if dof changed set on at least one processor
bool hasChanged();
/// init the scheme for scatter and gather operation, need extra memory
void initScatterGatherCommunicationScheme();
Int getRank(const UInt & /*node*/) const final { AKANTU_TO_IMPLEMENT(); }
private:
/// Root processor for scatter/gather operations
Int root;
/// information on the dofs
DOFManagerDefault & dof_manager;
/// dofs from root
Array<UInt> root_dofs;
/// Dofs received from slaves proc (only on master)
std::map<UInt, Array<UInt>> master_receive_dofs;
bool dof_changed;
};
} // namespace akantu
#include "dof_synchronizer_inline_impl.cc"
#endif /* __AKANTU_DOF_SYNCHRONIZER_HH__ */

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