devtools/eigen
1
0
Fork 0
mirror of https://gitlab.com/libeigen/eigen.git synced 2026-04-10 11:34:33 +08:00
Code Issues Packages Projects Releases Wiki Activity

Refactoring of sparse solvers through a SparseSolverBase class and usage of the Solve<> expression. Introduce a SolveWithGuess expression on top of Solve.

Browse Source
This commit is contained in:
Gael Guennebaud
2014-09-01 15:00:19 +02:00
parent bc065c75d2
commit 85c7659574
20 changed files with 565 additions and 131 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
Eigen/src/IterativeLinearSolvers/IncompleteLUT.h
View File

@@ -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
@@ -158,7 +159,11 @@ class IncompleteLUT : internal::noncopyable
void setFillfactor(int fillfactor);
template<typename Rhs, typename Dest>
#ifndef EIGEN_TEST_EVALUATORS
void _solve(const Rhs& b, Dest& x) const
#else
void _solve_impl(const Rhs& b, Dest& x) const
#endif
{
x = m_Pinv * b;
x = m_lu.template triangularView<UnitLower>().solve(x);
@@ -166,14 +171,25 @@ class IncompleteLUT : internal::noncopyable
x = m_P * x;
}
#ifndef EIGEN_TEST_EVALUATORS
template<typename Rhs> inline const internal::solve_retval<IncompleteLUT, Rhs>
solve(const MatrixBase<Rhs>& b) const
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());
}
#else
template<typename Rhs> inline const Solve<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 Solve<IncompleteLUT, Rhs>(*this, b.derived());
}
#endif
protected:
@@ -445,6 +461,7 @@ void IncompleteLUT<Scalar>::factorize(const _MatrixType& amat)
m_info = Success;
}
#ifndef EIGEN_TEST_EVALUATORS
namespace internal {
template<typename _MatrixType, typename Rhs>
@@ -461,6 +478,7 @@ struct solve_retval<IncompleteLUT<_MatrixType>, Rhs>
};
} // end namespace internal
#endif // EIGEN_TEST_EVALUATORS
} // end namespace Eigen