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https://github.com/OPM/opm-simulators.git
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52 lines
1.9 KiB
C++
52 lines
1.9 KiB
C++
/*
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Copyright 2019 SINTEF Digital, Mathematics and Cybernetics.
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This file is part of the Open Porous Media project (OPM).
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OPM is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OPM is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with OPM. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <config.h>
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#include <opm/simulators/linalg/setupPropertyTree.hpp>
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#include <boost/property_tree/json_parser.hpp>
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namespace Opm
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{
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/// Set up a property tree intended for FlexibleSolver by either reading
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/// the tree from a JSON file or creating a tree giving the default solver
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/// and preconditioner. If the latter, the parameters --linear-solver-reduction,
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/// --linear-solver-maxiter and --linear-solver-verbosity are used, but if reading
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/// from file the data in the JSON file will override any other options.
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boost::property_tree::ptree
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setupPropertyTree(const FlowLinearSolverParameters& p)
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{
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boost::property_tree::ptree prm;
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if (p.linear_solver_configuration_json_file_ != "none") {
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boost::property_tree::read_json(p.linear_solver_configuration_json_file_, prm);
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} else {
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prm.put("tol", p.linear_solver_reduction_);
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prm.put("maxiter", p.linear_solver_maxiter_);
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prm.put("verbosity", p.linear_solver_verbosity_);
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prm.put("solver", "bicgstab");
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prm.put("preconditioner.type", "ParOverILU0");
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prm.put("preconditioner.relaxation", 1.0);
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}
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return prm;
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}
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} // namespace Opm
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