The DIRAC (Distributed Infrastructure with Remote Agent Control) project is a complete Grid solution for a community of users needing access to distributed computing resources. DIRAC forms a layer between a particular community and various compute resources to allow optimized, transparent and reliable usage.
The Workload Management System with Pilot Jobs introduced by the DIRAC project is now widely used in various grid infrastructures. This concept allows to agregate in a single system computing resources of different nature, such as computational grids, clouds or clusters, transparently for the users
