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rAKA/src/synchronizer/static_communicator_mpi.hh
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static_communicator_mpi.hh
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/**
* @file static_communicator_mpi.hh
*
* @author Nicolas Richart <nicolas.richart@epfl.ch>
*
* @date creation: Sun Sep 05 2010
* @date last modification: Tue Jan 19 2016
*
* @brief class handling parallel communication trough MPI
*
* @section LICENSE
*
* Copyright (©) 2010-2012, 2014, 2015 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/>.
*
*/
/* -------------------------------------------------------------------------- */
/* -------------------------------------------------------------------------- */
#ifndef __AKANTU_STATIC_COMMUNICATOR_MPI_HH__
#define __AKANTU_STATIC_COMMUNICATOR_MPI_HH__
/* -------------------------------------------------------------------------- */
#include "real_static_communicator.hh"
/* -------------------------------------------------------------------------- */
#include <vector>
namespace akantu {
class MPITypeWrapper;
/* -------------------------------------------------------------------------- */
class StaticCommunicatorMPI : public RealStaticCommunicator {
/* ------------------------------------------------------------------------ */
/* Constructors/Destructors */
/* ------------------------------------------------------------------------ */
public:
StaticCommunicatorMPI(int & argc, char **& argv);
virtual ~StaticCommunicatorMPI();
/* ------------------------------------------------------------------------ */
/* Methods */
/* ------------------------------------------------------------------------ */
public:
template <typename T> void send(T * buffer, Int size, Int receiver, Int tag);
template <typename T> void receive(T * buffer, Int size, Int sender, Int tag);
template <typename T>
CommunicationRequest asyncSend(T * buffer, Int size, Int receiver, Int tag);
template <typename T>
CommunicationRequest asyncReceive(T * buffer, Int size, Int sender, Int tag);
template <typename T>
void probe(Int sender, Int tag, CommunicationStatus & status);
template <typename T> void allGather(T * values, int nb_values);
template <typename T> void allGatherV(T * values, int * nb_values);
template <typename T> void gather(T * values, int nb_values, int root);
template <typename T>
void gather(T * values, int nb_values, T * gathered, int nb_gathered = 0);
template <typename T> void gatherV(T * values, int * nb_values, int root);
template <typename T> void broadcast(T * values, int nb_values, int root);
bool testRequest(CommunicationRequest & request);
void wait(CommunicationRequest & request);
void waitAll(std::vector<CommunicationRequest> & requests);
UInt waitAny(std::vector<CommunicationRequest> & requests);
void barrier();
template <typename T>
void reduce(T * values, int nb_values, const SynchronizerOperation & op,
int root);
template <typename T>
void allReduce(T * values, int nb_values, const SynchronizerOperation & op);
/* ------------------------------------------------------------------------ */
/* Accessors */
/* ------------------------------------------------------------------------ */
public:
const MPITypeWrapper & getMPITypeWrapper() const { return *mpi_data; }
MPITypeWrapper & getMPITypeWrapper() { return *mpi_data; }
int getMinTag();
int getMaxTag();
private:
void setRank(int prank) { this->prank = prank; }
void setSize(int psize) { this->psize = psize; }
/* ------------------------------------------------------------------------ */
/* Class Members */
/* ------------------------------------------------------------------------ */
private:
friend class MPITypeWrapper;
MPITypeWrapper * mpi_data;
bool is_externaly_initialized;
};
/* -------------------------------------------------------------------------- */
/* inline functions */
/* -------------------------------------------------------------------------- */
#include "static_communicator_mpi_inline_impl.hh"
} // akantu
#endif /* __AKANTU_STATIC_COMMUNICATOR_MPI_HH__ */
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