On May 26, 2010, Tera 100 was turned on. The computer, which is located in Essonne is able to sustain around 1 petaFLOPs maximum performance and a peak at 1.25 petaFLOPs. It has 4300 Bullx Series S servers ('Mesca'), 140,000 Intel Xeon 7500 processor cores, and 300 TB of memory. The Interconnect is QDR InfiniBand. The file system has a throughput of 500 GB/s and total storage of 20 PB.  It uses the SLURM resource manager for scheduling batch jobs.
As of June 2011, TOP500 deems it the ninth fastest supercomputer in the world.
- "Bull Bills Tera 100 as Europe's First Petaflop Computer." PCWorld.com. Accessed July 2011.
- Hautreux, Matthieu. "SLURM at CEA." Top 500 Supercomputer Sites. Accessed July 2011.
- (French) CEA HPC site
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