Darius is a 32-node cluster with InfiniBand QDR interconnections. It runs CentOS 5.4 (Linux kernel version 2.6), which is closely related to Red Hat Enterprise Linux. Its hostname is darius.mit.edu.
Performance
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Using the 92 katom [ApoA1 benchmark|http://www.ks.uiuc.edu/Research/namd/performance.html] with NAMD 2.7, performance appears to compare very favorably with previously benchmarked clusters: its \[processor cores X time per step\] values (corresponding to the ordinate on the figure on the linked page) vary from 1.8 sec (8 CPUs) to 2.1 sec (128 CPUs). |
Using the queue system
All programs run on Darius must use the queue system. Users can check what jobs are running using qstat; XWindows users can try xpbs, although load times are long. Users can submit their jobs using the qsub command:
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