From: raphael couturier Date: Sun, 12 Oct 2014 18:22:07 +0000 (+0200) Subject: new X-Git-Url: https://bilbo.iut-bm.univ-fcomte.fr/and/gitweb/GMRES2stage.git/commitdiff_plain/71945acdf6349140c37f80c298c1305f72fc2482 new --- diff --git a/paper.tex b/paper.tex index ddfba59..1f6d783 100644 --- a/paper.tex +++ b/paper.tex @@ -609,9 +609,10 @@ In order to enhance the robustness of Krylov iterative solvers, some techniques Recently, communication-avoiding methods have been developed to reduce the communication overheads in Krylov subspace iterative solvers. On modern computer architectures, communications between processors are much slower than floating-point arithmetic operations on a given processor. Communication-avoiding techniques reduce either communications between processors or data movements between levels of the memory hierarchy, by reformulating the communication-bound kernels (more frequently SpMV kernels) and the orthogonalization operations within the Krylov iterative solver. Different works have studied the communication-avoiding methods for multicore processors and multi-GPU machines~\cite{}. -Compared to all these works, the originality of our work is to build a second -iteration over a Krylov iterative method and to minimize the residuals with a -least-squares method after a given number of outer iteration. +Compared to all these works and to all the other works on Krylov iterative +method, the originality of our work is to build a second iteration over a Krylov +iterative method and to minimize the residuals with a least-squares method after +a given number of outer iteration. %%%********************************************************* %%%*********************************************************