/usr/include/openturns/MPI.hxx is in libopenturns-dev 1.2-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/**
* @file MPI.hxx
* @brief This file supplies support for message-passing parallelism
*
* Copyright (C) 2005-2013 EDF-EADS-Phimeca
*
* This library 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.
*
* This library 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
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*
* @author dutka
* @date 2007-05-10 16:43:31 +0200 (Thu, 10 May 2007)
*/
#ifndef OPENTURNS_MPI_HXX
#define OPENTURNS_MPI_HXX
#include "OTprivate.hxx"
#include "OTconfig.hxx"
#include "AtomicFunctions.hxx"
#include "Pointer.hxx"
#ifdef HAVE_MPI
# include "mpi.h"
#endif /* HAVE_MPI */
BEGIN_NAMESPACE_OPENTURNS
/**
* class MPICommunicator
*
* brief This class manages a MPI communicator between parallel instances.
*/
class MPICommunicator
{
friend class MPI;
public:
#ifdef HAVE_MPI
typedef MPI_Comm CommunicatorType;
#else
typedef int CommunicatorType;
#endif /* HAVE_MPI */
MPICommunicator(const CommunicatorType & communicator);
MPICommunicator(const MPICommunicator & other);
~MPICommunicator();
/** Return a global communicator that encompass all compute nodes */
static MPICommunicator GetCommWorld();
private:
Pointer<CommunicatorType> p_comm_;
}; // end class MPICommunicator
/**
* class MPI
*
* brief This class is a singleton that initializes the MPI universe.
*/
class MPI
{
/** The communicator used to send and receive message between instances */
MPICommunicator comm_;
/** Constructor */
MPI(const MPICommunicator & comm);
public:
~MPI() throw();
/** Start the machinery of message-passing */
static void Init(const MPICommunicator & comm);
/** End the machinery of message-passing */
static void Release();
}; // end class MPI
END_NAMESPACE_OPENTURNS
#endif /* OPENTURNS_MPI_HXX */
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