/usr/include/rheolef/environment.h is in librheolef-dev 6.7-6.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 | # ifndef _RHEO_ENVIRONMENT_H
# define _RHEO_ENVIRONMENT_H
///
/// This file is part of Rheolef.
///
/// Copyright (C) 2000-2009 Pierre Saramito <Pierre.Saramito@imag.fr>
///
/// Rheolef 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 2 of the License, or
/// (at your option) any later version.
///
/// Rheolef 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 Rheolef; if not, write to the Free Software
/// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
///
/// =========================================================================
// boost::mpi::environment-like interface,
// but with MPI_Init_thread() instead of MPI_Init() call
// => support Scotch when compiled with threads
// note: this file is directly included by distributed.h
#include "rheolef/distributed.h"
#include <boost/optional.hpp>
/*Class:environment
NAME: @code{environment} - rheolef initialization (@PACKAGE@-@VERSION@)
SYNOPSYS:
This class is mainly used to initialize the MPI library: it
should be called juste after the @code{main(argc,argv)} declaration
as in:
@example
#include "rheolef.h"
using namespace rheolef;
int main(int argc, char**argv) @{
environment rheolef (argc, argv);
...
@}
@end example
An optional third argument of the @code{environment} constructor
allows to set the MPI thread feature. By default, its value
is MPI_THREAD_SINGLE, as defined in @code{mpi.h}.
Other possible values are related to MPI multi-threaded, see
the MPI documentation for more details.
AUTHORS: Pierre.Saramito@imag.fr
DATE: 29 september 2015
End:
*/
namespace rheolef {
struct environment_option_type {
static const int no_thread = 100;
#ifdef _RHEOLEF_HAVE_MPI
static const int default_thread = MPI_THREAD_SINGLE;
#else // _RHEOLEF_HAVE_MPI
static const int default_thread = 0;
#endif // _RHEOLEF_HAVE_MPI
environment_option_type() : thread_level (default_thread) {}
int thread_level ;
};
#ifndef _RHEOLEF_HAVE_MPI
class environment {
public:
environment (int& argc, char**& argv, const environment_option_type& opt = environment_option_type());
~environment();
protected:
unsigned int _oldcw;
};
#else
class environment {
public:
explicit environment (int& argc, char**& argv, const environment_option_type& opt = environment_option_type());
~environment();
static bool initialized();
static bool finalized();
static void abort(int errcode);
static int max_tag();
static int collectives_tag();
static boost::optional<int> host_rank();
static boost::optional<int> io_rank();
static std::string processor_name();
private:
bool _rheolef_has_init;
unsigned int _oldcw;
static const int _num_reserved_tags = 1;
};
#endif // _RHEOLEF_HAVE_MPI
} // namespace rheolef
#endif // _RHEO_ENVIRONMENT_H
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