TITLE: Tests des performances des communications de la machine Volvox IS-860 AUTHORS: Frédéric Desprez, Cyril Gavoille, Bruno Jargot and Makan Pourzandi ABSTRACT: In this document we present the distributed memory computer ARCHIPEL VolVox IS-860 and different programming environments TROLLIUS 2.1, VOLCOM 1.0 and VOLCOM 2.0. We measure the performances for different levels of these environments as a function of time and different hadware parameters.