netcdf-mpi

fft_engine.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 "fft_engine.hh"
			#include "fftw_engine.hh"

			#ifdef TAMAAS_USE_MPI
			#include "fftw_mpi_engine.hh"
			#include "mpi_interface.hh"
			#endif

			/* -------------------------------------------------------------------------- */
			namespace tamaas {

			std::unique_ptr<FFTEngine> FFTEngine::makeEngine(unsigned int flags) {
			#define inst(x) \
			do { \
			Logger().get(LogLevel::debug) << TAMAAS_DEBUG_MSG("[" #x "] Init"); \
			return std::make_unique<x>(flags); \
			} while (0)

			#ifdef TAMAAS_USE_MPI
			if (mpi::size() != 1)
			inst(FFTWMPIEngine);
			else
			inst(FFTWEngine);
			#else
			inst(FFTWEngine);
			#endif

			#undef inst
			}

			} // namespace tamaas