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mpi_interface.cpp
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Sun, May 12, 18:50
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2 KB
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Tue, May 14, 18:50 (2 d)
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rTAMAAS tamaas
mpi_interface.cpp
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/*
* SPDX-License-Indentifier: AGPL-3.0-or-later
*
* Copyright (©) 2016-2023 EPFL (École Polytechnique Fédérale de Lausanne),
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
* Copyright (©) 2020-2023 Lucas Frérot
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published
* by the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
/* -------------------------------------------------------------------------- */
#include "mpi_interface.hh"
/* -------------------------------------------------------------------------- */
namespace
tamaas
{
namespace
mpi_dummy
{
comm
comm
::
world
;
}
#ifdef TAMAAS_USE_MPI
namespace
mpi_impl
{
comm
sequential
::
old_comm
{
MPI_COMM_NULL
};
comm
&
comm
::
world
()
{
static
comm
_world
{
MPI_COMM_WORLD
};
return
_world
;
}
// Define type traits for MPI data types
#define TYPE(t, mpi_t) \
const MPI_Datatype type_trait<t>::value { mpi_t }
TYPE
(
float
,
MPI_FLOAT
);
TYPE
(
double
,
MPI_DOUBLE
);
TYPE
(
int
,
MPI_INT
);
TYPE
(
unsigned
int
,
MPI_UNSIGNED
);
TYPE
(
long
double
,
MPI_LONG_DOUBLE
);
TYPE
(
long
,
MPI_LONG
);
TYPE
(
unsigned
long
,
MPI_UNSIGNED_LONG
);
TYPE
(
::
tamaas
::
complex
<
float
>
,
MPI_CXX_FLOAT_COMPLEX
);
TYPE
(
::
tamaas
::
complex
<
double
>
,
MPI_CXX_DOUBLE_COMPLEX
);
TYPE
(
::
tamaas
::
complex
<
long
double
>
,
MPI_CXX_LONG_DOUBLE_COMPLEX
);
TYPE
(
bool
,
MPI_CXX_BOOL
);
#undef TYPE
// Define type traits for MPI operations
#define OPERATION(op, mpi_op) \
const MPI_Op operation_trait<operation::op>::value { mpi_op }
OPERATION
(
plus
,
MPI_SUM
);
OPERATION
(
min
,
MPI_MIN
);
OPERATION
(
max
,
MPI_MAX
);
OPERATION
(
times
,
MPI_PROD
);
#undef OPERATION
}
// namespace mpi_impl
#endif
}
// namespace tamaas
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