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author | Gael Guennebaud <g.gael@free.fr> | 2009-07-10 10:41:26 +0200 |
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committer | Gael Guennebaud <g.gael@free.fr> | 2009-07-10 10:41:26 +0200 |
commit | 1a1b2e9f27db619303e7f212f9bf5c58a2dd988c (patch) | |
tree | 7b89bee276ce87a11514650abe45b709c1fbb966 /test/triangular.cpp | |
parent | 8885d56928e45b3beda91e529845e369a17d0a91 (diff) |
finally directly calling the low-level products is faster
Diffstat (limited to 'test/triangular.cpp')
-rw-r--r-- | test/triangular.cpp | 54 |
1 files changed, 20 insertions, 34 deletions
diff --git a/test/triangular.cpp b/test/triangular.cpp index 3550d1a74..0c03e987e 100644 --- a/test/triangular.cpp +++ b/test/triangular.cpp @@ -1,7 +1,7 @@ // This file is triangularView of Eigen, a lightweight C++ template library // for linear algebra. // -// Copyright (C) 2008 Gael Guennebaud <gael.guennebaud@gmail.com> +// Copyright (C) 2008-2009 Gael Guennebaud <gael.guennebaud@gmail.com> // // Eigen is free software; you can redistribute it and/or // modify it under the terms of the GNU Lesser General Public @@ -81,44 +81,35 @@ template<typename MatrixType> void triangular(const MatrixType& m) m1.template triangularView<Eigen::LowerTriangular>() = (m2.transpose() * m2).lazy(); VERIFY_IS_APPROX(m3.template triangularView<Eigen::LowerTriangular>().toDense(), m1); - // VERIFY_IS_APPROX(m3.template triangularView<DiagonalBits>(), m3.diagonal().asDiagonal()); - m1 = MatrixType::Random(rows, cols); for (int i=0; i<rows; ++i) while (ei_abs2(m1(i,i))<1e-3) m1(i,i) = ei_random<Scalar>(); Transpose<MatrixType> trm4(m4); // test back and forward subsitution + m3 = m1.template triangularView<Eigen::UpperTriangular>(); + VERIFY(m2.isApprox(m3.adjoint() * (m1.adjoint().template triangularView<Eigen::LowerTriangular>().solve(m2)), largerEps)); + m3 = m1.template triangularView<Eigen::LowerTriangular>(); + VERIFY(m2.isApprox(m3.transpose() * (m1.transpose().template triangularView<Eigen::UpperTriangular>().solve(m2)), largerEps)); + m3 = m1.template triangularView<Eigen::UpperTriangular>(); + VERIFY(m2.isApprox(m3 * (m1.template triangularView<Eigen::UpperTriangular>().solve(m2)), largerEps)); m3 = m1.template triangularView<Eigen::LowerTriangular>(); -// VERIFY(m3.template triangularView<Eigen::LowerTriangular>().solve(m3).cwise().abs().isIdentity(test_precision<RealScalar>())); -// VERIFY(m3.transpose().template triangularView<Eigen::UpperTriangular>() -// .solve(m3.transpose()).cwise().abs().isIdentity(test_precision<RealScalar>())); + VERIFY(m2.isApprox(m3.conjugate() * (m1.conjugate().template triangularView<Eigen::LowerTriangular>().solve(m2)), largerEps)); + // check M * inv(L) using in place API m4 = m3; m3.transpose().template triangularView<Eigen::UpperTriangular>().solveInPlace(trm4); -// VERIFY(m4.cwise().abs().isIdentity(test_precision<RealScalar>())); + VERIFY(m4.cwise().abs().isIdentity(test_precision<RealScalar>())); -// m3 = m1.template triangularView<Eigen::UpperTriangular>(); -// VERIFY(m3.template triangularView<Eigen::UpperTriangular>().solve(m3).cwise().abs().isIdentity(test_precision<RealScalar>())); -// VERIFY(m3.transpose().template triangularView<Eigen::LowerTriangular>() -// .solve(m3.transpose()).cwise().abs().isIdentity(test_precision<RealScalar>())); -// // check M * inv(U) using in place API + // check M * inv(U) using in place API + m3 = m1.template triangularView<Eigen::UpperTriangular>(); m4 = m3; m3.transpose().template triangularView<Eigen::LowerTriangular>().solveInPlace(trm4); VERIFY(m4.cwise().abs().isIdentity(test_precision<RealScalar>())); -// m3 = m1.template triangularView<Eigen::UpperTriangular>(); -// VERIFY(m2.isApprox(m3 * (m3.template triangularView<Eigen::UpperTriangular>().solve(m2)), largerEps)); -// m3 = m1.template triangularView<Eigen::LowerTriangular>(); - -// std::cerr << (m2 - -// (m3 * (m3.template triangularView<Eigen::LowerTriangular>().solve(m2)))).cwise().abs() /*.maxCoeff()*/ << "\n\n"; - -// VERIFY(m2.isApprox(m3 * (m3.template triangularView<Eigen::LowerTriangular>().solve(m2)), largerEps)); - // check solve with unit diagonal -// m3 = m1.template triangularView<Eigen::UnitUpperTriangular>(); -// VERIFY(m2.isApprox(m3 * (m1.template triangularView<Eigen::UnitUpperTriangular>().solve(m2)), largerEps)); + m3 = m1.template triangularView<Eigen::UnitUpperTriangular>(); + VERIFY(m2.isApprox(m3 * (m1.template triangularView<Eigen::UnitUpperTriangular>().solve(m2)), largerEps)); // VERIFY(( m1.template triangularView<Eigen::UpperTriangular>() // * m2.template triangularView<Eigen::UpperTriangular>()).isUpperTriangular()); @@ -136,17 +127,12 @@ template<typename MatrixType> void triangular(const MatrixType& m) void test_triangular() { for(int i = 0; i < g_repeat ; i++) { -// CALL_SUBTEST( triangular(Matrix<float, 1, 1>()) ); -// CALL_SUBTEST( triangular(Matrix<float, 2, 2>()) ); -// CALL_SUBTEST( triangular(Matrix3d()) ); -// CALL_SUBTEST( triangular(MatrixXcf(4, 4)) ); -// CALL_SUBTEST( triangular(Matrix<std::complex<float>,8, 8>()) ); -// CALL_SUBTEST( triangular(MatrixXd(1,1)) ); -// CALL_SUBTEST( triangular(MatrixXd(2,2)) ); -// CALL_SUBTEST( triangular(MatrixXd(3,3)) ); -// CALL_SUBTEST( triangular(MatrixXd(5,5)) ); -// CALL_SUBTEST( triangular(MatrixXd(8,8)) ); + CALL_SUBTEST( triangular(Matrix<float, 1, 1>()) ); + CALL_SUBTEST( triangular(Matrix<float, 2, 2>()) ); + CALL_SUBTEST( triangular(Matrix3d()) ); + CALL_SUBTEST( triangular(MatrixXcf(4, 4)) ); + CALL_SUBTEST( triangular(Matrix<std::complex<float>,8, 8>()) ); CALL_SUBTEST( triangular(MatrixXd(17,17)) ); -// CALL_SUBTEST( triangular(Matrix<float,Dynamic,Dynamic,RowMajor>(5, 5)) ); + CALL_SUBTEST( triangular(Matrix<float,Dynamic,Dynamic,RowMajor>(5, 5)) ); } } |