opm-simulators/tests/test_preconditionerfactory.cpp

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