diff options
Diffstat (limited to 'Eigen/src/IterativeLinearSolvers/IncompleteLUT.h')
| -rw-r--r-- | Eigen/src/IterativeLinearSolvers/IncompleteLUT.h | 42 |
1 files changed, 10 insertions, 32 deletions
diff --git a/Eigen/src/IterativeLinearSolvers/IncompleteLUT.h b/Eigen/src/IterativeLinearSolvers/IncompleteLUT.h index b55afc136..8ed9bdecc 100644 --- a/Eigen/src/IterativeLinearSolvers/IncompleteLUT.h +++ b/Eigen/src/IterativeLinearSolvers/IncompleteLUT.h @@ -2,6 +2,7 @@ // for linear algebra. // // Copyright (C) 2012 Désiré Nuentsa-Wakam <desire.nuentsa_wakam@inria.fr> +// Copyright (C) 2014 Gael Guennebaud <gael.guennebaud@inria.fr> // // 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 @@ -93,8 +94,12 @@ Index QuickSplit(VectorV &row, VectorI &ind, Index ncut) * http://comments.gmane.org/gmane.comp.lib.eigen/3302 */ template <typename _Scalar> -class IncompleteLUT : internal::noncopyable +class IncompleteLUT : public SparseSolverBase<IncompleteLUT<_Scalar> > { + protected: + typedef SparseSolverBase<IncompleteLUT<_Scalar> > Base; + using Base::m_isInitialized; + public: typedef _Scalar Scalar; typedef typename NumTraits<Scalar>::Real RealScalar; typedef Matrix<Scalar,Dynamic,1> Vector; @@ -107,13 +112,13 @@ class IncompleteLUT : internal::noncopyable IncompleteLUT() : m_droptol(NumTraits<Scalar>::dummy_precision()), m_fillfactor(10), - m_analysisIsOk(false), m_factorizationIsOk(false), m_isInitialized(false) + m_analysisIsOk(false), m_factorizationIsOk(false) {} template<typename MatrixType> - IncompleteLUT(const MatrixType& mat, const RealScalar& droptol=NumTraits<Scalar>::dummy_precision(), int fillfactor = 10) + explicit IncompleteLUT(const MatrixType& mat, const RealScalar& droptol=NumTraits<Scalar>::dummy_precision(), int fillfactor = 10) : m_droptol(droptol),m_fillfactor(fillfactor), - m_analysisIsOk(false),m_factorizationIsOk(false),m_isInitialized(false) + m_analysisIsOk(false),m_factorizationIsOk(false) { eigen_assert(fillfactor != 0); compute(mat); @@ -158,7 +163,7 @@ class IncompleteLUT : internal::noncopyable void setFillfactor(int fillfactor); template<typename Rhs, typename Dest> - void _solve(const Rhs& b, Dest& x) const + void _solve_impl(const Rhs& b, Dest& x) const { x = m_Pinv * b; x = m_lu.template triangularView<UnitLower>().solve(x); @@ -166,15 +171,6 @@ class IncompleteLUT : internal::noncopyable x = m_P * x; } - template<typename Rhs> inline const internal::solve_retval<IncompleteLUT, Rhs> - solve(const MatrixBase<Rhs>& b) const - { - eigen_assert(m_isInitialized && "IncompleteLUT is not initialized."); - eigen_assert(cols()==b.rows() - && "IncompleteLUT::solve(): invalid number of rows of the right hand side matrix b"); - return internal::solve_retval<IncompleteLUT, Rhs>(*this, b.derived()); - } - protected: /** keeps off-diagonal entries; drops diagonal entries */ @@ -192,7 +188,6 @@ protected: int m_fillfactor; bool m_analysisIsOk; bool m_factorizationIsOk; - bool m_isInitialized; ComputationInfo m_info; PermutationMatrix<Dynamic,Dynamic,Index> m_P; // Fill-reducing permutation PermutationMatrix<Dynamic,Dynamic,Index> m_Pinv; // Inverse permutation @@ -445,23 +440,6 @@ void IncompleteLUT<Scalar>::factorize(const _MatrixType& amat) m_info = Success; } -namespace internal { - -template<typename _MatrixType, typename Rhs> -struct solve_retval<IncompleteLUT<_MatrixType>, Rhs> - : solve_retval_base<IncompleteLUT<_MatrixType>, Rhs> -{ - typedef IncompleteLUT<_MatrixType> Dec; - EIGEN_MAKE_SOLVE_HELPERS(Dec,Rhs) - - template<typename Dest> void evalTo(Dest& dst) const - { - dec()._solve(rhs(),dst); - } -}; - -} // end namespace internal - } // end namespace Eigen #endif // EIGEN_INCOMPLETE_LUT_H |