diff options
author | 2018-10-15 23:47:46 +0200 | |
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committer | 2018-10-15 23:47:46 +0200 | |
commit | f0fb95135dfd2d109a793fe8793b13c401f36bf4 (patch) | |
tree | c9c31808f908cdbb2b119fc4bd59addfcd077376 /unsupported/Eigen/src/IterativeSolvers/DGMRES.h | |
parent | 2747b98cfc39d7bd4b4dd56d4fed2adf30219509 (diff) |
Iterative solvers: unify and fix handling of multiple rhs.
m_info was not properly computed and the logic was repeated in several places.
Diffstat (limited to 'unsupported/Eigen/src/IterativeSolvers/DGMRES.h')
-rw-r--r-- | unsupported/Eigen/src/IterativeSolvers/DGMRES.h | 31 |
1 files changed, 9 insertions, 22 deletions
diff --git a/unsupported/Eigen/src/IterativeSolvers/DGMRES.h b/unsupported/Eigen/src/IterativeSolvers/DGMRES.h index 9ae766995..2ab56b5e7 100644 --- a/unsupported/Eigen/src/IterativeSolvers/DGMRES.h +++ b/unsupported/Eigen/src/IterativeSolvers/DGMRES.h @@ -109,6 +109,7 @@ class DGMRES : public IterativeSolverBase<DGMRES<_MatrixType,_Preconditioner> > using Base::m_tolerance; public: using Base::_solve_impl; + using Base::_solve_with_guess_impl; typedef _MatrixType MatrixType; typedef typename MatrixType::Scalar Scalar; typedef typename MatrixType::StorageIndex StorageIndex; @@ -141,30 +142,16 @@ class DGMRES : public IterativeSolverBase<DGMRES<_MatrixType,_Preconditioner> > /** \internal */ template<typename Rhs,typename Dest> - void _solve_with_guess_impl(const Rhs& b, Dest& x) const - { - bool failed = false; - for(Index j=0; j<b.cols(); ++j) - { - m_iterations = Base::maxIterations(); - m_error = Base::m_tolerance; - - typename Dest::ColXpr xj(x,j); - dgmres(matrix(), b.col(j), xj, Base::m_preconditioner); - } - m_info = failed ? NumericalIssue - : m_error <= Base::m_tolerance ? Success - : NoConvergence; - m_isInitialized = true; - } - - /** \internal */ - template<typename Rhs,typename Dest> - void _solve_impl(const Rhs& b, MatrixBase<Dest>& x) const + void _solve_vector_with_guess_impl(const Rhs& b, Dest& x) const { - x = b; - _solve_with_guess_impl(b,x.derived()); + EIGEN_STATIC_ASSERT(Rhs::ColsAtCompileTime==1 || Dest::ColsAtCompileTime==1, YOU_TRIED_CALLING_A_VECTOR_METHOD_ON_A_MATRIX); + + m_iterations = Base::maxIterations(); + m_error = Base::m_tolerance; + + dgmres(matrix(), b, x, Base::m_preconditioner); } + /** * Get the restart value */ |