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Sun, May 5, 12:38

communication_descriptor.hh
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/**
* @file synchronizer_tmpl.hh
*
* @author Nicolas Richart <nicolas.richart@epfl.ch>
*
* @date Wed Aug 3 13:49:36 2016
*
* @brief Implementation of the helper classes for the synchronizer
*
* @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/>.
*
*/
/* -------------------------------------------------------------------------- */
#include "aka_array.hh"
#include "data_accessor.hh"
#include "communication_tag.hh"
/* -------------------------------------------------------------------------- */
#ifndef __AKANTU_COMMUNICATION_DESCRIPTOR_HH__
#define __AKANTU_COMMUNICATION_DESCRIPTOR_HH__
namespace akantu {
/* ------------------------------------------------------------------------ */
enum CommunicationSendRecv {
_send,
_recv,
_csr_not_defined
};
/* ------------------------------------------------------------------------ */
struct Communication {
Communication() : size(0), type(_csr_not_defined) {}
UInt size;
CommunicationBuffer buffer;
CommunicationRequest request;
CommunicationSendRecv type;
};
template <class Entity> class Communications;
/* ------------------------------------------------------------------------ */
template <class Entity> class CommunicationDescriptor {
public:
CommunicationDescriptor(Communication & communication, Array<Entity> & scheme,
Communications<Entity> & communications,
const SynchronizationTag & tag, UInt proc);
/// get the quantity of data in the buffer
UInt getNbData() { return communication.size; }
/// set the quantity of data in the buffer
void setNbData(UInt size) { communication.size = size; }
/// get the corresponding tag
const SynchronizationTag & getTag() const { return tag; }
/// get the data buffer
CommunicationBuffer & getBuffer();
/// get the corresponding request
CommunicationRequest & getRequest();
/// get the communication scheme
Array<Entity> & getScheme();
/// pack data for entities in the buffer
void packData(DataAccessor<Entity> & accessor);
/// unpack data for entities from the buffer
void unpackData(DataAccessor<Entity> & accessor);
/// posts asynchronous send requests
void postSend(int hash_id);
/// posts asynchronous receive requests
void postRecv(int hash_id);
/// free the request
void freeRequest();
UInt getProc() { return proc; }
protected:
Communication & communication;
Array<Entity> & scheme;
Communications<Entity> & communications;
const SynchronizationTag & tag;
UInt proc;
UInt rank;
UInt counter;
};
/* -------------------------------------------------------------------------- */
} // akantu
#include "communication_descriptor_tmpl.hh"
#endif /* __AKANTU_COMMUNICATION_DESCRIPTOR_HH__ */

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