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fftw_allocator.hh
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Sat, Jun 29, 08:30
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Mon, Jul 1, 08:30 (1 d, 23 h)
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rTAMAAS tamaas
fftw_allocator.hh
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/**
* @file
*
* @author Lucas Frérot <lucas.frerot@epfl.ch>
*
* @section LICENSE
*
* Copyright (©) 2017 EPFL (Ecole Polytechnique Fédérale de
* Lausanne) Laboratory (LSMS - Laboratoire de Simulation en Mécanique des
* Solides)
*
* Tamaas 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.
*
* Tamaas 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 License
* along with Tamaas. If not, see <http://www.gnu.org/licenses/>.
*
*/
/* -------------------------------------------------------------------------- */
#ifndef __FFTW_ALLOCATOR_HH__
#define __FFTW_ALLOCATOR_HH__
/* -------------------------------------------------------------------------- */
#include <memory>
#include <fftw3.h>
/* -------------------------------------------------------------------------- */
namespace
tamaas
{
/// Class allocating [SIMD](http://www.fftw.org/fftw3_doc/SIMD-alignment-and-fftw_005fmalloc.html#SIMD-alignment-and-fftw_005fmalloc) aligned memory
template
<
typename
T
>
struct
FFTWAllocator
{
/// Allocate memory
T
*
allocate
(
std
::
size_t
n
)
{
T
*
p
=
nullptr
;
p
=
(
T
*
)
fftw_malloc
(
sizeof
(
T
)
*
n
);
return
p
;
}
/// Free memory
void
deallocate
(
T
*
p
,
__attribute__
((
unused
))
std
::
size_t
n
)
{
fftw_free
(
p
);
}
};
}
#endif
// __FFTW_ALLOCATOR_HH__
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