40 lines
1.5 KiB
C++
40 lines
1.5 KiB
C++
// This file is part of Eigen, a lightweight C++ template library
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// for linear algebra.
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//
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// Copyright (C) 2011 Gael Guennebaud <g.gael@free.fr>
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// Copyright (C) 2012 Kolja Brix <brix@igpm.rwth-aaachen.de>
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//
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// This Source Code Form is subject to the terms of the Mozilla
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// Public License v. 2.0. If a copy of the MPL was not distributed
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// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
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// SPDX-License-Identifier: MPL-2.0
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#include "sparse_solver.h"
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#include <Eigen/IterativeLinearSolvers>
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template <typename T>
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void test_bicgstabl_T() {
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BiCGSTABL<SparseMatrix<T>, DiagonalPreconditioner<T> > bicgstabl_colmajor_diag;
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BiCGSTABL<SparseMatrix<T>, IncompleteLUT<T> > bicgstabl_colmajor_ilut;
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// This does not change the tolerance of the test, only the tolerance of the solver.
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bicgstabl_colmajor_diag.setTolerance(NumTraits<T>::epsilon() * 20);
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bicgstabl_colmajor_ilut.setTolerance(NumTraits<T>::epsilon() * 20);
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CALL_SUBTEST(check_sparse_square_solving(bicgstabl_colmajor_diag));
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CALL_SUBTEST(check_sparse_square_solving(bicgstabl_colmajor_ilut));
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}
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void test_bicgstabl_solve_with_guess_restart() {
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// Regression for a solveWithGuess case where the recursive residual reached
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// the tolerance before the true residual did.
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srand(555248885);
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test_bicgstabl_T<double>();
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}
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EIGEN_DECLARE_TEST(bicgstabl) {
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CALL_SUBTEST_1(test_bicgstabl_T<double>());
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CALL_SUBTEST_2(test_bicgstabl_T<std::complex<double> >());
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CALL_SUBTEST_3(test_bicgstabl_solve_with_guess_restart());
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}
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