%\newcommand{\fixme}[1]{{\bf #1}}
-\chapter[Numerical validation on GPUs in atomic physics]{Numerical validation and performance optimization on GPUs of an application in atomic physics}
+\chapter[Numerical validation and GPU performance in atomic physics]{Numerical validation and performance optimization on GPUs of an application in atomic physics}
\label{chapter15}
\section{Introduction}\label{ch15:intro}