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Fri, Sep 13, 09:08

static_communicator_mpi.hh
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/**
* @file static_communicator_mpi.hh
* @author Nicolas Richart <nicolas.richart@epfl.ch>
* @date Thu Sep 2 19:59:58 2010
*
* @brief class handling parallel communication trough MPI
*
* @section LICENSE
*
* Copyright (©) 2010-2011 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 <mpi.h>
#include <vector>
/* -------------------------------------------------------------------------- */
__BEGIN_AKANTU__
/* -------------------------------------------------------------------------- */
class CommunicationRequestMPI : public CommunicationRequest {
public:
inline CommunicationRequestMPI(UInt source, UInt dest);
inline ~CommunicationRequestMPI();
inline MPI_Request * getMPIRequest() { return request; };
private:
MPI_Request * request;
};
/* -------------------------------------------------------------------------- */
class StaticCommunicatorMPI : public RealStaticCommunicator {
/* ------------------------------------------------------------------------ */
/* Constructors/Destructors */
/* ------------------------------------------------------------------------ */
public:
inline StaticCommunicatorMPI(int & argc, char ** & argv);
inline virtual ~StaticCommunicatorMPI();
/* ------------------------------------------------------------------------ */
/* Methods */
/* ------------------------------------------------------------------------ */
public:
template<typename T> inline void send(T * buffer, Int size, Int receiver, Int tag);
template<typename T> inline void receive(T * buffer, Int size, Int sender, Int tag);
template<typename T> inline CommunicationRequest * asyncSend(T * buffer, Int size,
Int receiver, Int tag);
template<typename T> inline CommunicationRequest * asyncReceive(T * buffer, Int size,
Int sender, Int tag);
template<typename T> inline void probe(Int sender, Int tag,
CommunicationStatus & status);
template<typename T> inline void allGather(T * values, Int nb_values);
template<typename T> inline void allGatherV(T * values, Int * nb_values);
template<typename T> inline void gather(T * values, Int nb_values, Int root);
template<typename T> inline void gatherV(T * values, Int * nb_values, Int root);
template<typename T> inline void broadcast(T * values, Int nb_values, Int root);
inline bool testRequest(CommunicationRequest * request);
inline void wait(CommunicationRequest * request);
inline void waitAll(std::vector<CommunicationRequest *> & requests);
inline void barrier();
template<typename T> inline void allReduce(T * values, Int nb_values,
const SynchronizerOperation & op);
private:
template<typename T>
inline MPI_Datatype getMPIDatatype();
/* ------------------------------------------------------------------------ */
/* Accessors */
/* ------------------------------------------------------------------------ */
public:
inline void setMPICommunicator(MPI_Comm comm);
inline MPI_Comm getMPICommunicator() const;
/* ------------------------------------------------------------------------ */
/* Class Members */
/* ------------------------------------------------------------------------ */
private:
MPI_Comm communicator;
static MPI_Op synchronizer_operation_to_mpi_op[_so_null + 1];
};
/* -------------------------------------------------------------------------- */
/* inline functions */
/* -------------------------------------------------------------------------- */
#include "static_communicator_mpi_inline_impl.hh"
__END_AKANTU__
#endif /* __AKANTU_STATIC_COMMUNICATOR_MPI_HH__ */

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