ABSTRACT
The Tera 100 is the third machine of the Tera program implemented by Commissariat a l'energie atomique et aux energies alternatives/ Direction des Applications Militaires (CEA/DAM). The Tera program started as early as 1996, when France decided to end its nuclear tests and design and guarantee its deterrence through simulation. Tera 100, also designed by BULL, pushed the design even further in relying on the ubiquitous x86 64 architecture, thus providing a seamless environment to our users from the desktop to the supercomputer. Tera 100 is an exceptional general purpose computer, designed for classified workloads coming from various CEA/DAM laboratories. The Tera 100 system is more than a petaflop computing machine; it is a full computing center with all the services requested by CEA users. Tera's long-term data storage is based on high performance storage system (HPSS), a hierarchical storage manager (HSM) sold by IBM.
