\newcommand{\Prec}{\mathit{prec}}
\newcommand{\Ratio}{\mathit{Ratio}}
-%\usepackage{xspace}
-%\usepackage[textsize=footnotesize]{todonotes}
-%\newcommand{\LZK}[2][inline]{%
-%\todo[color=green!40,#1]{\sffamily\textbf{LZK:} #2}\xspace}
+\def\changemargin#1#2{\list{}{\rightmargin#2\leftmargin#1}\item[]}
+\let\endchangemargin=\endlist
\title{A scalable multisplitting algorithm for solving large sparse linear systems}
\date{}
\begin{table}[htbp]
\begin{center}
+\begin{changemargin}{-2.5cm}{0cm}
\begin{tabular}{|c|c||c|c|c||c|c|c||c|}
\hline
\multirow{2}{*}{Pb size}&\multirow{2}{*}{Nb. cores} & \multicolumn{3}{c||}{GMRES} & \multicolumn{3}{c||}{Krylov Multisplitting} & \multirow{2}{*}{Ratio}\\
\end{tabular}
\caption{Results}
\label{tab1}
+\end{changemargin}
\end{center}
\end{table}