From: raphael couturier <couturie@extinction>
Date: Wed, 9 Apr 2014 18:33:12 +0000 (+0200)
Subject: new
X-Git-Url: https://bilbo.iut-bm.univ-fcomte.fr/and/gitweb/Krylov_multi.git/commitdiff_plain/1e2fbfd32f825b023fdc9af78a0565ba2ae93a6c

new
---

diff --git a/krylov_multi.tex b/krylov_multi.tex
index 7a7e809..6e1f16c 100644
--- a/krylov_multi.tex
+++ b/krylov_multi.tex
@@ -5,6 +5,7 @@
 \usepackage{graphicx}
 \usepackage{algorithm}
 \usepackage{algpseudocode}
+\usepackage{multirow}
 
 \algnewcommand\algorithmicinput{\textbf{Input:}}
 \algnewcommand\Input{\item[\algorithmicinput]}
@@ -12,6 +13,9 @@
 \algnewcommand\algorithmicoutput{\textbf{Output:}}
 \algnewcommand\Output{\item[\algorithmicoutput]}
 
+\newcommand{\Time}[1]{\mathit{Time}_\mathit{#1}}
+\newcommand{\Prec}{\mathit{prec}}
+\newcommand{\Ratio}{\mathit{Ratio}}
 
 \title{A scalable multisplitting algorithm for solving large sparse linear systems} 
 \date{}
@@ -352,6 +356,30 @@ obtained for  a 3D Poisson  problem, the number  of iterations is high.  Using a
 preconditioner  it  is   possible  to  reduce  the  number   of  iterations  but
 preconditioners are not scalable when using many cores.
 
+Doing many experiments  with many cores is  not easy and require to  access to a
+supercomputer  with several  hours for  developping  a code  and then  improving
+it. In the following we presented  some experiments we could achieved out on the
+Hector architecture,  the previous UK's  high-end computing resource,  funded by
+the UK Research Councils, which has been stopped in the early 2014.
+
+In the experiments  we report the size of the 3D  poisson considered, the number
+of processors used  (with the decomposition for the  multisplitting), the number
+of iterations for the GMRES method and the krylov multisplitting one and finally
+the execution  times. We  also give  the other parameters:  the restart  for the
+GRMES method
+
+
+\begin{table}[p]
+\begin{center}
+\begin{tabular}{|c||c|c|} 
+\hline
+Problem size & 
+\end{tabular}
+\caption{CAPTION}
+\label{tab1}
+\end{center}
+\end{table}
+
 \section{Conclusion and perspectives}
 
 Other applications (=> other matrices)\\