FERMI was taken out of production on Jul 18, 2016.
This largest system, Tier-0 at european level, is based on IBM BlueGene/Q (BGQ)architecture. It replaced the IBM SP6 supercomputer and was installed and became fully operational in summer 2012.
Access to FERMI is on the basis of national and European calls for proposals. ISCRA (Italian SuperComputing Resources Allocation) and PRACE manage the access to the Tier-0 supercomputer by the way of international peer-review procedures ensuring world-class research.