Xeon cluster

Hardware

NOTE: 4 nodes report 16 processors because they run in hyperthreading mode. So 176 processors show up on a scan of /proc/cpuinfo (168 without the head node).

The E5430 is a member of the Harpertown series, released in November 2007. Power consumption for the 45 nm chips is 80W. Front side bus runs at 1.3 GHz. The series runs up to 3.4 GHz at 150W, so I expect the chip to be rather stable at 2.66 GHz and 80W. The L2 cache has 6MB.

The E5520 is a member of the Gainestown series, released in March 2009. Power consumption for the 45 nm chips is 80W. Front side bus runs at 1.0 GHz. The L2 cache has 1MB but has an 8MB L3 cache.