opm-simulators/opm/simulators/flow/priVarsPacking.hpp
2023-12-21 10:48:58 +01:00

58 lines
2.4 KiB
C++

/*
Copyright 2023 Total SE
This file is part of the Open Porous Media project (OPM).
OPM 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 3 of the License, or
(at your option) any later version.
OPM 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 OPM. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef OPM_PRIVARSPACKING_HEADER_INCLUDED
#define OPM_PRIVARSPACKING_HEADER_INCLUDED
#include <cstddef>
namespace Opm {
namespace PVUtil {
constexpr int fbits = 4;
template <class PV>
std::size_t pack(const PV& privar) {
std::size_t m1 = static_cast<std::size_t>(privar.primaryVarsMeaningWater());
std::size_t m2 = static_cast<std::size_t>(privar.primaryVarsMeaningPressure());
std::size_t m3 = static_cast<std::size_t>(privar.primaryVarsMeaningGas());
std::size_t m4 = static_cast<std::size_t>(privar.primaryVarsMeaningBrine());
std::size_t m5 = static_cast<std::size_t>(privar.primaryVarsMeaningSolvent());
return m1 + (m2 << fbits*1) + (m3 << fbits*2) + (m4 << fbits*3) + (m5 << fbits*4);
}
template <class PV>
void unPack(PV& privar, const std::size_t meanings) {
const std::size_t filter = ((1 << fbits) - 1);
std::size_t m1 = (meanings >> fbits*0) & filter;
std::size_t m2 = (meanings >> fbits*1) & filter;
std::size_t m3 = (meanings >> fbits*2) & filter;
std::size_t m4 = (meanings >> fbits*3) & filter;
std::size_t m5 = (meanings >> fbits*4) & filter;
privar.setPrimaryVarsMeaningWater(typename PV::WaterMeaning(m1));
privar.setPrimaryVarsMeaningPressure(typename PV::PressureMeaning(m2));
privar.setPrimaryVarsMeaningGas(typename PV::GasMeaning(m3));
privar.setPrimaryVarsMeaningBrine(typename PV::BrineMeaning(m4));
privar.setPrimaryVarsMeaningSolvent(typename PV::SolventMeaning(m5));
}
} // namespace PVMeanings
} // namespace Opm
#endif // OPM_PRIVARSPACKING_HEADER_INCLUDED