Main WebComputer Power
| Phase | Processor | Number of | Number of | SI2K | SI2K | SI2006 | SI2006 |
|---|---|---|---|---|---|---|---|
| # | Specification | Nodes (WN) | Cores (WN) | per core | Total | per core | Total |
| I | Intel Xeon DP 2.4 GHz | 24 (22) | 50 (44) | 900 | 45,000 | 5.3 | 265 |
| II | Intel Xeon EMT64T 3.0 GHz | 33 (32) | 66 (64) | 1,350 | 89,100 | 7.9 | 521 |
| III | Intel Xeon Dual-Core 2.0 GHz | 32 (29) | 128 (116) | 2,100 | 268,800 | 12.3 | 1,574 |
| Total of WN | 83 | 224 | 369,600 | 2,165 | |||
| Total | 89 | 244 | 402,900 | 2,360 |
- The unit of computing power kSI2K corresponds to one Intel Xeon 2.8 GHz processor: http://www1.jinr.ru/Pepan/2005-v36/v-36-1/pdf/v-36-1_02.pdf
- Giga Flop: Xeon processors execute 2 floating point operations per clock cycle. A Xeon with 2.4 GHz is able to execute up to 4.8 billions of floating point operations per second: 2 operations / clock cycle X 2.4 x 10^9 clock cycles / sec = 4.8 GFlops
- Compare with the US CMS Tier-2 site capacity: http://t2.unl.edu/uscms/current-us-cms-tier-2-site-capacity-1-24-07/
- See also the LHC Computing Grid Tier 2 Centres: http://lcg.web.cern.ch/lcg/C-RRB/Tier-2/
| Processor | Nodes | GHz | TeraFlops | SPECint2000 |
|---|---|---|---|---|
| Xeon 2.4 GHz | 50 | 120 | 0.240 | 40,000 |
| Xeon 3.0 GHz | 64 | 192 | 0.384 | 92,400 |
| Xeon 3.2 GHz | 128 | 410 | 0.820 | 179,200 |
| Total | 242 | 722 | 1.444 | 311,600 |
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