Computing at STAR
Data recording rate of 20MB/sec; 15-20MB raw data per event (~1Hz)
- 17M Au-Au events (equivalent) recorded in nominal year
- Relatively few but highly complex events
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Requirements:
- 200TB raw data/year; 270TB total for all processing stages
- 10,000 Si95 CPU/year
- Wide range of physics studies: ~100 concurrent analyses in ~7 physics working groups
Principal facility: RHIC Computing Facility (RCF) at Brookhaven
- All reconstruction, some analysis, no simulation
- 20 kSi95 CPU, 50TB disk, 270TB robotic (HPSS) in ’01
Secondary STAR facility: NERSC (LBNL)
- Scale similar to STAR component of RCF