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communications.hh
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/**
* @file communications.hh
*
* @author Nicolas Richart <nicolas.richart@epfl.ch>
*
* @date Wed Aug 24 13:56:14 2016
*
* @brief
*
* @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 "communication_descriptor.hh"
/* -------------------------------------------------------------------------- */
#include <map>
/* -------------------------------------------------------------------------- */
#ifndef __AKANTU_COMMUNICATIONS_HH__
#define __AKANTU_COMMUNICATIONS_HH__
namespace akantu {
namespace debug {
class CommunicationException : public Exception {
public:
CommunicationException()
: Exception("An exception happen during a communication process.") {}
};
} // debug
/* -------------------------------------------------------------------------- */
template <class Entity> class Communications {
public:
typedef Array<Entity> Scheme;
protected:
typedef std::map<UInt, Communication> CommunicationPerProcs;
typedef std::map<SynchronizationTag, CommunicationPerProcs>
CommunicationsPerTags;
typedef std::map<UInt, Scheme> CommunicationSchemes;
typedef std::map<UInt, std::vector<CommunicationRequest> > Request;
friend class CommunicationDescriptor<Entity>;
public:
typedef typename CommunicationSchemes::iterator scheme_iterator;
typedef typename CommunicationSchemes::const_iterator const_scheme_iterator;
/* ------------------------------------------------------------------------ */
class iterator;
class tag_iterator;
/* ------------------------------------------------------------------------ */
public:
CommunicationPerProcs & getCommunications(const SynchronizationTag & tag,
const CommunicationSendRecv & sr);
/* ------------------------------------------------------------------------ */
bool hasPending(const SynchronizationTag & tag,
const CommunicationSendRecv & sr) const;
UInt getPending(const SynchronizationTag & tag,
const CommunicationSendRecv & sr) const;
/* ------------------------------------------------------------------------ */
iterator begin(const SynchronizationTag & tag,
const CommunicationSendRecv & sr);
iterator end(const SynchronizationTag & tag,
const CommunicationSendRecv & sr);
/* ------------------------------------------------------------------------ */
iterator waitAny(const SynchronizationTag & tag,
const CommunicationSendRecv & sr);
/* ------------------------------------------------------------------------ */
void waitAll(const SynchronizationTag & tag,
const CommunicationSendRecv & sr);
void incrementPending(const SynchronizationTag & tag,
const CommunicationSendRecv & sr);
void decrementPending(const SynchronizationTag & tag,
const CommunicationSendRecv & sr);
void freeRequests(const SynchronizationTag & tag,
const CommunicationSendRecv & sr);
/* ------------------------------------------------------------------------ */
Scheme & createScheme(UInt proc, const CommunicationSendRecv & sr);
void resetSchemes(const CommunicationSendRecv & sr);
/* ------------------------------------------------------------------------ */
void initializeCommunication(const SynchronizationTag & tag, UInt proc, UInt size,
const CommunicationSendRecv & sr);
public:
Communications(const StaticCommunicator & communicator);
/* ------------------------------------------------------------------------ */
iterator begin_send(const SynchronizationTag & tag);
iterator end_send(const SynchronizationTag & tag);
/* ------------------------------------------------------------------------ */
iterator begin_recv(const SynchronizationTag & tag);
iterator end_recv(const SynchronizationTag & tag);
/* ------------------------------------------------------------------------ */
tag_iterator begin_tag();
tag_iterator end_tag();
/* ------------------------------------------------------------------------ */
bool hasCommunication(const SynchronizationTag & tag) const;
UInt incrementCounter(const SynchronizationTag & tag);
bool hasPendingRecv(const SynchronizationTag & tag) const;
bool hasPendingSend(const SynchronizationTag & tag) const;
const StaticCommunicator & getCommunicator() const;
/* ------------------------------------------------------------------------ */
iterator waitAnyRecv(const SynchronizationTag & tag);
iterator waitAnySend(const SynchronizationTag & tag);
void waitAllRecv(const SynchronizationTag & tag);
void waitAllSend(const SynchronizationTag & tag);
void freeSendRequests(const SynchronizationTag & tag);
void freeRecvRequests(const SynchronizationTag & tag);
/* ------------------------------------------------------------------------ */
const_scheme_iterator begin_send_scheme() const;
const_scheme_iterator end_send_scheme() const;
/* ------------------------------------------------------------------------ */
const_scheme_iterator begin_recv_scheme() const;
const_scheme_iterator end_recv_scheme() const;
/* ------------------------------------------------------------------------ */
scheme_iterator begin_send_scheme();
scheme_iterator end_send_scheme();
/* ------------------------------------------------------------------------ */
scheme_iterator begin_recv_scheme();
scheme_iterator end_recv_scheme();
/* ------------------------------------------------------------------------ */
Scheme & createSendScheme(UInt proc);
Scheme & createRecvScheme(UInt proc);
/* ------------------------------------------------------------------------ */
const Scheme & getSendScheme(UInt proc) const;
const Scheme & getRecvScheme(UInt proc) const;
/* ------------------------------------------------------------------------ */
void resetSchemes();
/* ------------------------------------------------------------------------ */
void initializeSendCommunication(const SynchronizationTag & tag, UInt proc,
UInt size);
void initializeRecvCommunication(const SynchronizationTag & tag, UInt proc,
UInt size);
protected:
CommunicationSchemes schemes[2];
CommunicationsPerTags communications[2];
std::map<SynchronizationTag, UInt> comm_counter;
std::map<SynchronizationTag, UInt> pending_communications[2];
const StaticCommunicator & communicator;
};
} // akantu
#include "communications_tmpl.hh"
#endif /* __AKANTU_COMMUNICATIONS_HH__ */

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