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mpi_context.hh
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Thu, Sep 5, 08:31
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rMUSPECTRE µSpectre
mpi_context.hh
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/**
* @file mpi_initializer.cc
*
* @author Lars Pastewka <lars.pastewka@imtek.uni-freiburg.de>
*
* @date 07 Mar 2018
*
* @brief Singleton for initialization and tear down of MPI.
*
* Copyright © 2017 Till Junge
*
* µSpectre is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation, either version 3, or (at
* your option) any later version.
*
* µSpectre 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU Emacs; see the file COPYING. If not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef MPI_CONTEXT_H
#define MPI_CONTEXT_H
#include <mpi.h>
namespace
µ
Spectre
{
/*!
* MPI context singleton. Initialize MPI once when needed.
*/
class
MPIContext
{
public
:
MPI_Comm
comm
;
static
MPIContext
&
get_context
()
{
static
MPIContext
context
;
return
context
;
}
private
:
MPIContext
()
:
comm
(
MPI_COMM_WORLD
)
{
BOOST_TEST_MESSAGE
(
"MPI_Init"
);
MPI_Init
(
&
boost
::
unit_test
::
framework
::
master_test_suite
().
argc
,
&
boost
::
unit_test
::
framework
::
master_test_suite
().
argv
);
}
~
MPIContext
()
{
BOOST_TEST_MESSAGE
(
"MPI_Finalize"
);
MPI_Finalize
();
}
public
:
MPIContext
(
MPIContext
const
&
)
=
delete
;
void
operator
=
(
MPIContext
const
&
)
=
delete
;
};
}
#endif
/* MPI_CONTEXT_H */
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