From: couturie Date: Wed, 15 Jan 2014 21:13:02 +0000 (+0100) Subject: suite X-Git-Url: https://bilbo.iut-bm.univ-fcomte.fr/and/gitweb/Krylov_multi.git/commitdiff_plain/d9105f3cc518086be070a250845823a6ec0f7b4a suite --- diff --git a/krylov_multi.tex b/krylov_multi.tex index ea6cfe9..0ff9175 100644 --- a/krylov_multi.tex +++ b/krylov_multi.tex @@ -61,8 +61,13 @@ solvers. However, most of the good preconditionners are not sclalable when thousands of cores are used. -A completer... -On ne peut pas parler de tout...\\ +Traditionnal iterative solvers have global synchronizations that penalize the +scalability. Two possible solutions consists either in using asynchronous +iterative methods~\cite{ref18} or to use multisplitting algorithms. In this +paper, we will reconsider the use of a multisplitting method. In opposition to +traditionnal multisplitting method that suffer from slow convergence, as +proposed in~\cite{huang1993krylov}, the use of a minimization process can +drastically improve the convergence.