Yvon Jegou is full time INRIA researcher and he is working in the Myriads project team of INRIA in Rennes. His research activities are centered on architecture, operating systems and compilation techniques for parallel and distributed computing. In the recent past, he participated to the IST POP project on the implementation of an OpenMP runtime system for clusters using distributed shared memories and to the XtreemOS IP project on the implementation of the XtreemOS Grid operating system. He is currently deeply involved in the Contrail IP project (Open Computing Infrastructures for Elastic Services) coordinated by Christine Morin at INRIA-Rennes and targeting Cloud federations. He leads the architecture and infrastructure workpackages of the project.