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87 lines
2.5 KiB
C++
87 lines
2.5 KiB
C++
// -*- mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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// vi: set et ts=4 sw=4 sts=4:
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/*
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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 2 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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Consult the COPYING file in the top-level source directory of this
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module for the precise wording of the license and the list of
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copyright holders.
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*/
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/*!
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* \file
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* \copydoc Opm::Linear::OverlappingOperator
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*/
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#ifndef EWOMS_OVERLAPPING_OPERATOR_HH
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#define EWOMS_OVERLAPPING_OPERATOR_HH
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#include <dune/istl/operators.hh>
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#include <dune/common/version.hh>
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namespace Opm {
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namespace Linear {
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/*!
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* \brief An overlap aware linear operator usable by ISTL.
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*/
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template <class OverlappingMatrix, class DomainVector, class RangeVector>
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class OverlappingOperator
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: public Dune::AssembledLinearOperator<OverlappingMatrix, DomainVector, RangeVector>
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{
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using Overlap = typename OverlappingMatrix::Overlap;
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public:
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//! export types
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using domain_type = DomainVector;
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using field_type = typename domain_type::field_type;
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OverlappingOperator(const OverlappingMatrix& A) : A_(A)
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{}
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//! the kind of computations supported by the operator. Either overlapping or non-overlapping
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Dune::SolverCategory::Category category() const override
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{ return Dune::SolverCategory::overlapping; }
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//! apply operator to x: \f$ y = A(x) \f$
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virtual void apply(const DomainVector& x, RangeVector& y) const override
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{
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A_.mv(x, y);
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y.sync();
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}
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//! apply operator to x, scale and add: \f$ y = y + \alpha A(x) \f$
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virtual void applyscaleadd(field_type alpha, const DomainVector& x,
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RangeVector& y) const override
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{
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A_.usmv(alpha, x, y);
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y.sync();
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}
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//! returns the matrix
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virtual const OverlappingMatrix& getmat() const override
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{ return A_; }
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const Overlap& overlap() const
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{ return A_.overlap(); }
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private:
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const OverlappingMatrix& A_;
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};
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} // namespace Linear
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} // namespace Opm
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#endif
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