opm-simulators/examples/powerinjection_forchheimer_ad.cpp
Andreas Lauser a626ab869e make the vertex centered FV method work with automatic differentiation
This works by having a "focus degree of freedom" during
linearization. When evaluating the local residual, all derivatives of
the residual/fluxes are with regard to the primary variables of that
DOF.

The two main offenders were the Forchheimer velocity model and the
model for the Stokes equations. To ensure that they continue to work,
the "powerinjection" and the "stokestest2c" problems are now both
compiled and tested with both, automatic differentiation and finite
differences, and the results of these tests is compared against the
same reference solution.

The majority of the time required to develop this patch was actually
required for testing: All tests compile and pass with debugging and
aggressive optimization flags with at least GCC 5, GCC 7 and clang
3.8, as well as Dune 2.3 and 2.4. Also, the results of flow_ebos stay
identical for Norne whilst the performance difference is below the
measurement noise on my machine. (the version with this patch applied
was actually about 1% faster.)
2017-07-21 18:35:08 +02:00

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1.7 KiB
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// -*- mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
// vi: set et ts=4 sw=4 sts=4:
/*
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 2 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/>.
Consult the COPYING file in the top-level source directory of this
module for the precise wording of the license and the list of
copyright holders.
*/
/*!
* \file
*
* \brief Test for the Forchheimer velocity model
*/
#include "config.h"
#include <ewoms/common/start.hh>
#include <ewoms/models/immiscible/immisciblemodel.hh>
#include "problems/powerinjectionproblem.hh"
namespace Ewoms {
namespace Properties {
NEW_TYPE_TAG(PowerInjectionForchheimerAdProblem,
INHERITS_FROM(ImmiscibleTwoPhaseModel,
PowerInjectionBaseProblem));
SET_TYPE_PROP(PowerInjectionForchheimerAdProblem, FluxModule, Ewoms::ForchheimerFluxModule<TypeTag>);
SET_TAG_PROP(PowerInjectionForchheimerAdProblem, LocalLinearizerSplice, AutoDiffLocalLinearizer);
}}
int main(int argc, char **argv)
{
typedef TTAG(PowerInjectionForchheimerAdProblem) ProblemTypeTag;
return Ewoms::start<ProblemTypeTag>(argc, argv);
}