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tamaas.cpp
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Thu, Jun 27, 00:47
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rTAMAAS tamaas
tamaas.cpp
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/**
* @file
* @section LICENSE
*
* Copyright (©) 2016-2020 EPFL (École Polytechnique Fédérale de Lausanne),
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
* 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 "tamaas.hh"
#include "loop.hh"
#include <fftw3.h>
#include <omp.h>
/* -------------------------------------------------------------------------- */
namespace
tamaas
{
void
initialize
(
UInt
num_threads
)
{
if
(
num_threads
)
{
omp_set_num_threads
(
num_threads
);
// set user-defined number of threads
}
// fftw_import_wisdom_from_filename("fftransform_fftw_wisdom");
#ifndef USE_CUDA
if
(
not
fftw_init_threads
())
TAMAAS_EXCEPTION
(
"FFTW could not initialize threads!"
);
fftw_plan_with_nthreads
(
omp_get_max_threads
());
#endif
}
/* -------------------------------------------------------------------------- */
void
finalize
()
{
// fftw_export_wisdom_to_filename("fftransform_fftw_wisdom");
fftw_cleanup_threads
();
}
namespace
{
/// Manager for initialize + finalize
struct
entry_exit_points
{
entry_exit_points
()
{
initialize
();
}
~
entry_exit_points
()
{
finalize
();
}
static
const
entry_exit_points
singleton
;
};
const
entry_exit_points
entry_exit_points
::
singleton
;
}
// namespace
}
// namespace tamaas
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