mirror of
https://github.com/OPM/opm-simulators.git
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367 lines
11 KiB
C++
367 lines
11 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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#include <config.h>
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#define BOOST_TEST_MODULE OPM_test_PreconditionerFactory
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#include <boost/test/unit_test.hpp>
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#include <opm/simulators/linalg/matrixblock.hh>
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#include <opm/simulators/linalg/ilufirstelement.hh>
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#include <opm/simulators/linalg/PreconditionerFactory_impl.hpp>
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#include <opm/simulators/linalg/PropertyTree.hpp>
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#include <opm/simulators/linalg/FlexibleSolver.hpp>
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#include <opm/simulators/linalg/getQuasiImpesWeights.hpp>
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#include <dune/common/fvector.hh>
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#include <dune/istl/bvector.hh>
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#include <dune/istl/bcrsmatrix.hh>
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#include <dune/istl/matrixmarket.hh>
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#include <dune/istl/solvers.hh>
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#include <fstream>
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#include <iostream>
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template <class X>
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class NothingPreconditioner : public Dune::Preconditioner<X, X>
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{
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public:
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virtual void pre(X&, X&) override
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{
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}
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virtual void apply(X& v, const X& d) override
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{
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v = d;
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}
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virtual void post(X&) override
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{
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}
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virtual Dune::SolverCategory::Category category() const override
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{
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return Dune::SolverCategory::sequential;
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}
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};
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template <int bz>
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Dune::BlockVector<Dune::FieldVector<double, bz>>
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testPrec(const Opm::PropertyTree& prm, const std::string& matrix_filename, const std::string& rhs_filename)
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{
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using Matrix = Dune::BCRSMatrix<Opm::MatrixBlock<double, bz, bz>>;
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using Vector = Dune::BlockVector<Dune::FieldVector<double, bz>>;
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Matrix matrix;
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{
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std::ifstream mfile(matrix_filename);
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if (!mfile) {
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throw std::runtime_error("Could not read matrix file");
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}
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using M = Dune::BCRSMatrix<Dune::FieldMatrix<double, bz, bz>>;
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readMatrixMarket(reinterpret_cast<M&>(matrix), mfile); // Hack to avoid hassle
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}
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Vector rhs;
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{
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std::ifstream rhsfile(rhs_filename);
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if (!rhsfile) {
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throw std::runtime_error("Could not read rhs file");
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}
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readMatrixMarket(rhs, rhsfile);
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}
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using Operator = Dune::MatrixAdapter<Matrix, Vector, Vector>;
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Operator op(matrix);
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using PrecFactory = Opm::PreconditionerFactory<Operator,Dune::Amg::SequentialInformation>;
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bool transpose = false;
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if(prm.get<std::string>("preconditioner.type") == "cprt"){
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transpose = true;
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}
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auto wc = [&matrix, transpose]()
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{
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return Opm::Amg::getQuasiImpesWeights<Matrix, Vector>(matrix, 1, transpose);
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};
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auto prec = PrecFactory::create(op, prm.get_child("preconditioner"), wc, 1);
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Dune::BiCGSTABSolver<Vector> solver(op, *prec, prm.get<double>("tol"), prm.get<int>("maxiter"), prm.get<int>("verbosity"));
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Vector x(rhs.size());
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Dune::InverseOperatorResult res;
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solver.apply(x, rhs, res);
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return x;
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}
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void test1(const Opm::PropertyTree& prm)
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{
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constexpr int bz = 1;
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auto sol = testPrec<bz>(prm, "matr33.txt", "rhs3.txt");
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Dune::BlockVector<Dune::FieldVector<double, bz>> expected {-1.62493,
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-1.76435e-06,
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1.86991e-10,
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-458.542,
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2.28308e-06,
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-2.45341e-07,
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-1.48005,
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-5.02264e-07,
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-1.049e-05};
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BOOST_REQUIRE_EQUAL(sol.size(), expected.size());
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for (size_t i = 0; i < sol.size(); ++i) {
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for (int row = 0; row < bz; ++row) {
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BOOST_CHECK_CLOSE(sol[i][row], expected[i][row], 1e-3);
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}
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}
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}
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void test3(const Opm::PropertyTree& prm)
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{
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constexpr int bz = 3;
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auto sol = testPrec<bz>(prm, "matr33.txt", "rhs3.txt");
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Dune::BlockVector<Dune::FieldVector<double, bz>> expected {{-1.62493, -1.76435e-06, 1.86991e-10},
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{-458.542, 2.28308e-06, -2.45341e-07},
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{-1.48005, -5.02264e-07, -1.049e-05}};
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BOOST_REQUIRE_EQUAL(sol.size(), expected.size());
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for (size_t i = 0; i < sol.size(); ++i) {
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for (int row = 0; row < bz; ++row) {
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BOOST_CHECK_CLOSE(sol[i][row], expected[i][row], 1e-3);
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}
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}
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}
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BOOST_AUTO_TEST_CASE(TestDefaultPreconditionerFactory)
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{
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// Read parameters.
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Opm::PropertyTree prm("options_flexiblesolver.json");
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// Test with 1x1 block solvers.
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test1(prm);
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// Test with 3x3 block solvers.
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test3(prm);
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}
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template <int bz>
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using M = Dune::BCRSMatrix<Opm::MatrixBlock<double, bz, bz>>;
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template <int bz>
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using V = Dune::BlockVector<Dune::FieldVector<double, bz>>;
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template <int bz>
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using O = Dune::MatrixAdapter<M<bz>, V<bz>, V<bz>>;
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template <int bz>
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using PF = Opm::PreconditionerFactory<O<bz>,Dune::Amg::SequentialInformation>;
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BOOST_AUTO_TEST_CASE(TestAddingPreconditioner)
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{
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// Read parameters.
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Opm::PropertyTree prm("options_flexiblesolver_simple.json");
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// Test with 1x1 block solvers.
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{
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constexpr int bz = 1;
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BOOST_CHECK_THROW(testPrec<bz>(prm, "matr33.txt", "rhs3.txt"), std::invalid_argument);
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}
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// Test with 3x3 block solvers.
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{
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constexpr int bz = 3;
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BOOST_CHECK_THROW(testPrec<bz>(prm, "matr33.txt", "rhs3.txt"), std::invalid_argument);
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}
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// Add preconditioner to factory for block size 1.
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PF<1>::addCreator("nothing", [](const O<1>&, const Opm::PropertyTree&, const std::function<V<1>()>&,
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std::size_t) {
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return Dune::getDummyUpdateWrapper<NothingPreconditioner<V<1>>>();
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});
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// Test with 1x1 block solvers.
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test1(prm);
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// Test with 3x3 block solvers.
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{
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constexpr int bz = 3;
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BOOST_CHECK_THROW(testPrec<bz>(prm, "matr33.txt", "rhs3.txt"), std::invalid_argument);
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}
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// Add preconditioner to factory for block size 3.
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PF<3>::addCreator("nothing", [](const O<3>&, const Opm::PropertyTree&, const std::function<V<3>()>&,
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std::size_t) {
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return Dune::getDummyUpdateWrapper<NothingPreconditioner<V<3>>>();
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});
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// Test with 1x1 block solvers.
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test1(prm);
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// Test with 3x3 block solvers.
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test3(prm);
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}
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template<class Mat, class Vec>
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class RepeatingOperator : public Dune::AssembledLinearOperator<Mat, Vec, Vec>
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{
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public:
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using matrix_type = Mat;
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using domain_type = Vec;
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using range_type = Vec;
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using field_type = typename Vec::field_type;
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Dune::SolverCategory::Category category() const override
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{
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return Dune::SolverCategory::sequential;
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}
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RepeatingOperator(const Mat& matrix, const int repeats)
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: matrix_(matrix)
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, repeats_(repeats)
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{
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}
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// y = A*x;
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virtual void apply(const Vec& x, Vec& y) const override
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{
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y = 0;
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applyscaleadd(1.0, x, y);
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}
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// y += \alpha * A * x
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virtual void applyscaleadd(field_type alpha, const Vec& x, Vec& y) const override
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{
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Vec temp1 = x;
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Vec temp2 = x; // For size.
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temp2 = 0.0;
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for (int rr = 0; rr < repeats_; ++rr) {
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// mv below means: temp2 = matrix_ * temp1;
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matrix_.mv(temp1, temp2);
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temp1 = temp2;
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}
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temp2 *= alpha;
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y += temp2;
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}
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virtual const matrix_type& getmat() const override
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{
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return matrix_;
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}
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protected:
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const Mat& matrix_;
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const int repeats_;
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};
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template <int bz>
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Dune::BlockVector<Dune::FieldVector<double, bz>>
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testPrecRepeating(const Opm::PropertyTree& prm, const std::string& matrix_filename, const std::string& rhs_filename)
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{
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using Matrix = M<bz>;
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using Vector = V<bz>;
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Matrix matrix;
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{
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std::ifstream mfile(matrix_filename);
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if (!mfile) {
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throw std::runtime_error("Could not read matrix file");
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}
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using M = Dune::BCRSMatrix<Dune::FieldMatrix<double, bz, bz>>;
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wstrict-aliasing"
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readMatrixMarket(reinterpret_cast<M&>(matrix), mfile); // Hack to avoid hassle
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#pragma GCC diagnostic pop
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}
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Vector rhs;
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{
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std::ifstream rhsfile(rhs_filename);
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if (!rhsfile) {
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throw std::runtime_error("Could not read rhs file");
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}
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readMatrixMarket(rhs, rhsfile);
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}
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using Operator = RepeatingOperator<Matrix, Vector>;
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Operator op(matrix, 2);
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using PrecFactory = Opm::PreconditionerFactory<Operator,Dune::Amg::SequentialInformation>;
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// Add no-oppreconditioner to factory for block size 1.
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PrecFactory::addCreator("nothing", [](const Operator&, const Opm::PropertyTree&, const std::function<Vector()>&,
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std::size_t) {
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return Dune::getDummyUpdateWrapper<NothingPreconditioner<Vector>>();
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});
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auto prec = PrecFactory::create(op, prm.get_child("preconditioner"));
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Dune::BiCGSTABSolver<Vector> solver(op, *prec, prm.get<double>("tol"), prm.get<int>("maxiter"), prm.get<int>("verbosity"));
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Vector x(rhs.size());
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Dune::InverseOperatorResult res;
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solver.apply(x, rhs, res);
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return x;
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}
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void test1rep(const Opm::PropertyTree& prm)
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{
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constexpr int bz = 1;
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auto sol = testPrecRepeating<bz>(prm, "matr33rep.txt", "rhs3rep.txt");
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Dune::BlockVector<Dune::FieldVector<double, bz>> expected {0.285714285714286,
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0.285714285714286,
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0.285714285714286,
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-0.214285714285714,
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-0.214285714285714,
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-0.214285714285714,
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-0.214285714285714,
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-0.214285714285714,
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-0.214285714285714};
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BOOST_REQUIRE_EQUAL(sol.size(), expected.size());
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for (size_t i = 0; i < sol.size(); ++i) {
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for (int row = 0; row < bz; ++row) {
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BOOST_CHECK_CLOSE(sol[i][row], expected[i][row], 1e-3);
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}
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}
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}
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void test3rep(const Opm::PropertyTree& prm)
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{
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constexpr int bz = 3;
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auto sol = testPrecRepeating<bz>(prm, "matr33rep.txt", "rhs3rep.txt");
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Dune::BlockVector<Dune::FieldVector<double, bz>> expected {
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{0.285714285714286, 0.285714285714286, 0.285714285714286},
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{-0.214285714285714, -0.214285714285714, -0.214285714285714},
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{-0.214285714285714, -0.214285714285714, -0.214285714285714}
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};
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BOOST_REQUIRE_EQUAL(sol.size(), expected.size());
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for (size_t i = 0; i < sol.size(); ++i) {
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for (int row = 0; row < bz; ++row) {
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BOOST_CHECK_CLOSE(sol[i][row], expected[i][row], 1e-3);
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}
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}
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}
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BOOST_AUTO_TEST_CASE(TestWithRepeatingOperator)
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{
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// Read parameters.
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Opm::PropertyTree prm("options_flexiblesolver_simple.json");
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// Test with 1x1 block solvers.
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test1rep(prm);
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// Test with 3x3 block solvers.
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test3rep(prm);
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}
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