From e038522489b4db01b21bd9191355cb18bd619431 Mon Sep 17 00:00:00 2001 From: raphael couturier Date: Sun, 12 Oct 2014 20:18:27 +0200 Subject: [PATCH 1/1] new --- paper.tex | 3 +++ 1 file changed, 3 insertions(+) diff --git a/paper.tex b/paper.tex index 59c5600..ddfba59 100644 --- a/paper.tex +++ b/paper.tex @@ -609,6 +609,9 @@ 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. %%%********************************************************* %%%********************************************************* -- 2.39.5