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https://github.com/OPM/opm-simulators.git
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93 lines
2.7 KiB
C++
93 lines
2.7 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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#ifndef OPM_OWNINGBLOCKPRECONDITIONER_HEADER_INCLUDED
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#define OPM_OWNINGBLOCKPRECONDITIONER_HEADER_INCLUDED
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#include <opm/common/TimingMacros.hpp>
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#include <opm/simulators/linalg/PreconditionerWithUpdate.hpp>
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#include <dune/istl/schwarz.hh>
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namespace Dune
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{
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template <class OriginalPreconditioner, class Comm>
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class OwningBlockPreconditioner : public PreconditionerWithUpdate<typename OriginalPreconditioner::domain_type,
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typename OriginalPreconditioner::range_type>
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{
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public:
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template <class... Args>
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OwningBlockPreconditioner(const Comm& comm, Args&&... args)
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: orig_precond_(std::forward<Args>(args)...)
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, block_precond_(orig_precond_, comm)
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{
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}
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using X = typename OriginalPreconditioner::domain_type;
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using Y = typename OriginalPreconditioner::range_type;
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virtual void pre(X& x, Y& b) override
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{
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OPM_TIMEBLOCK(pre);
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block_precond_.pre(x, b);
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}
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virtual void apply(X& v, const Y& d) override
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{
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OPM_TIMEBLOCK(apply);
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block_precond_.apply(v, d);
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}
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virtual void post(X& x) override
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{
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OPM_TIMEBLOCK(post);
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block_precond_.post(x);
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}
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virtual SolverCategory::Category category() const override
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{
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return block_precond_.category();
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}
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// The update() function does nothing for a wrapped preconditioner.
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virtual void update() override
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{
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OPM_TIMEBLOCK(update);
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orig_precond_.update();
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}
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private:
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OriginalPreconditioner orig_precond_;
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BlockPreconditioner<X, Y, Comm, OriginalPreconditioner> block_precond_;
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};
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template <class OriginalPreconditioner, class Comm, class... Args>
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std::shared_ptr<OwningBlockPreconditioner<OriginalPreconditioner, Comm>>
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wrapBlockPreconditioner(const Comm& comm, Args&&... args)
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{
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return std::make_shared<OwningBlockPreconditioner<OriginalPreconditioner, Comm>>(comm, std::forward<Args>(args)...);
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}
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} // namespace Dune
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#endif // OPM_OWNINGBLOCKPRECONDITIONER_HEADER_INCLUDED
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