In the context of the INRIA – EDF R&D general agreement, this contract (2010 – 2013) with the EDF R&D SINETICS department investigates resource management in virtualized distributed platforms in order to efficiently execute distributed applications with stringent time constraints. The goal is to federate computing resources and use them simultaneously for research and exploitation purposes, the latter class of applications being executed with a higher priority than the former.This project funds a CIFRE PhD grant: Stefania Costache