ETH Zurich, Institute of Computational Science, 8092 Zürich, Switzerland. cdessimoz@inf.ethz.ch|ETH Zurich, Institute of Computational Science, 8092 Zürich, Switzerland. cdessimoz@inf.ethz.ch|ETH Zurich, Institute of Computational Science, 8092 Zürich, Switzerland. cdessimoz@inf.ethz.ch|ETH Zurich, Institute of Computational Science, 8092 Zürich, Switzerland. cdessimoz@inf.ethz.ch