[Beowulf] PNNL: large new cluster

[Mark Hahn]

http://www.hpcwire.com/hpc/1805360.html
http://www.pnl.gov/topstory.asp?id=275

4620 2.2 GHz quad-core Barcelona, presumably 2-socket nodes, 2GB/core
with pretty agressive IO setup.

if anyone involved in this cluster is reading the list,
it would be most appreciated to see some comments re:

 	- choice of AMD over Intel is interesting - did you
 	get to evaluate the 45nm Core2 offerings?  decision
 	based on sustained memory bandwidth?

 	- what are some details of the storage component?
 	950 GB/s across 21000 disks (45 MB/s) sounds plausible but
 	would require a heck of a lot of IB-to-storage ports, no?

thanks, mark hahn.