\documentclass[20pt, xcolor={usenames,dvipsnames}]{beamer}

\usepackage{alltt}

\hypersetup{
  pdftitle={Compiling code and using MPI},
  pdfauthor={http://scitas.epfl.ch},
  colorlinks=true,
  urlcolor=blue
}

\title{Compiling code and using MPI}
\author{\url{scitas.epfl.ch}}
\date{\today}


\begin{document}
\input{document}
\end{document}