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OwningBlockPreconditioner.hpp
/*
Copyright 2019 SINTEF Digital, Mathematics and Cybernetics.
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_OWNINGBLOCKPRECONDITIONER_HEADER_INCLUDED
#define OPM_OWNINGBLOCKPRECONDITIONER_HEADER_INCLUDED
#include <opm/common/TimingMacros.hpp>
#include <opm/simulators/linalg/PreconditionerWithUpdate.hpp>
#include <dune/istl/schwarz.hh>
namespace Dune
{
template <class OriginalPreconditioner, class Comm>
class OwningBlockPreconditioner : public PreconditionerWithUpdate<typename OriginalPreconditioner::domain_type,
typename OriginalPreconditioner::range_type>
{
public:
template <class... Args>
OwningBlockPreconditioner(const Comm& comm, Args&&... args)
: orig_precond_(std::forward<Args>(args)...)
, block_precond_(orig_precond_, comm)
{
}
using X = typename OriginalPreconditioner::domain_type;
using Y = typename OriginalPreconditioner::range_type;
virtual void pre(X& x, Y& b) override
{
OPM_TIMEBLOCK(pre);
block_precond_.pre(x, b);
}
virtual void apply(X& v, const Y& d) override
{
OPM_TIMEBLOCK(apply);
block_precond_.apply(v, d);
}
virtual void post(X& x) override
{
OPM_TIMEBLOCK(post);
block_precond_.post(x);
}
virtual SolverCategory::Category category() const override
{
return block_precond_.category();
}
// The update() function does nothing for a wrapped preconditioner.
virtual void update() override
{
OPM_TIMEBLOCK(update);
orig_precond_.update();
}
virtual bool hasPerfectUpdate() const override {
return orig_precond_.hasPerfectUpdate();
}
private:
OriginalPreconditioner orig_precond_;
BlockPreconditioner<X, Y, Comm, OriginalPreconditioner> block_precond_;
};
template <class OriginalPreconditioner, class Comm, class... Args>
std::shared_ptr<OwningBlockPreconditioner<OriginalPreconditioner, Comm>>
wrapBlockPreconditioner(const Comm& comm, Args&&... args)
{
return std::make_shared<OwningBlockPreconditioner<OriginalPreconditioner, Comm>>(comm, std::forward<Args>(args)...);
}
} // namespace Dune
#endif // OPM_OWNINGBLOCKPRECONDITIONER_HEADER_INCLUDED
Dune::PreconditionerWithUpdate
Interface class adding the update() method to the preconditioner interface.
Definition PreconditionerWithUpdate.hpp:32