Symbiose team-project, IRISA INRIA, Rennes, France. pierre.peterlongo@irisa.fr|Symbiose team-project, IRISA INRIA, Rennes, France. pierre.peterlongo@irisa.fr|Symbiose team-project, IRISA INRIA, Rennes, France. pierre.peterlongo@irisa.fr|Symbiose team-project, IRISA INRIA, Rennes, France. pierre.peterlongo@irisa.fr|Symbiose team-project, IRISA INRIA, Rennes, France. pierre.peterlongo@irisa.fr|Symbiose team-project, IRISA INRIA, Rennes, France. pierre.peterlongo@irisa.fr