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c21fd6f26d
This replaces the makePreconditoner() function. The main advantage is that it is extensible, making it easy to for example add new preconditioners to the factory at runtime. It supports both parallel and serial preconditioners.
92 lines
2.5 KiB
C++
92 lines
2.5 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_PRECONDITIONERWITHUPDATE_HEADER_INCLUDED
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#define OPM_PRECONDITIONERWITHUPDATE_HEADER_INCLUDED
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#include <dune/istl/preconditioner.hh>
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#include <memory>
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namespace Dune
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{
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/// Interface class adding the update() method to the preconditioner interface.
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template <class X, class Y>
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class PreconditionerWithUpdate : public Preconditioner<X, Y>
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{
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public:
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virtual void update() = 0;
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};
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template <class OriginalPreconditioner>
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class DummyUpdatePreconditioner : 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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DummyUpdatePreconditioner(Args&&... args)
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: orig_precond_(std::forward<Args>(args)...)
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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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orig_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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orig_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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orig_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 orig_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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}
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private:
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OriginalPreconditioner orig_precond_;
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};
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template <class OriginalPreconditioner, class... Args>
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std::shared_ptr<DummyUpdatePreconditioner<OriginalPreconditioner>>
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wrapPreconditioner(Args&&... args)
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{
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return std::make_shared<DummyUpdatePreconditioner<OriginalPreconditioner>>(std::forward<Args>(args)...);
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}
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} // namespace Dune
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#endif // OPM_PRECONDITIONERWITHUPDATE_HEADER_INCLUDED
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