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third_party/eigen/unsupported/test/bicgstabl.cpp

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