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48 lines
1.6 KiB
C++
48 lines
1.6 KiB
C++
/*
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Copyright 2019 Equinor ASA
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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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#ifndef BDARESULT_HEADER_INCLUDED
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#define BDARESULT_HEADER_INCLUDED
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namespace Opm
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{
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namespace Accelerator
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{
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/// This class is based on InverseOperatorResult struct from dune/istl/solver.hh
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/// It is needed to prevent a compile error in basearray.hh, the nvcc compiler might not support all features in there
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class BdaResult
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{
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public:
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int iterations = 0; // number of iterations
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double reduction = 0.0; // reduction of norm, norm_start / norm_final
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bool converged = false; // true iff the linear solver reached the desired norm within maxit iterations
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double conv_rate = 0.0; // average reduction of norm per iteration, usually calculated with 'static_cast<double>(pow(res.reduction,1.0/it));'
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double elapsed = 0.0; // time in seconds to run the linear solver
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// Dune 2.6 has a member 'double condition_estimate = -1' in InverseOperatorResult
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}; // end class BdaResult
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} // namespace Accelerator
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} // namespace Opm
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#endif
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