Faster than a speeding bullet -- The June 2006 edition of the top supercomputing sites has been released, and it's probably little surprise to anyone that the DOE/IBM Blue Gene/L tops the list for the fourth time in a row. IBM is responsible for a pretty amazing 240 systems (48%) on the most recent list -- from the #1 spot with Blue Gene/L, all the way down to the 500th spot with an xSeries 2.8 GHz Gig-Ethernet cluster. Power Architecture-based systems account for 83 (16.6%) of those; significantly, all 4 of IBM systems in the top ten are Power-based, all 11 of IBM systems in the top 20 are Power-based, 22 out of 25 IBM systems in the top 50 are Power-based, and -- you get the idea.
More of a surprise this time was the strong showing made by AMD Opteron-based systems, which power 81 of the top 500 -- up from 25 one year ago.
Update July 14, 2006:
EE Times notes that Power Architecture systems are the second most common in the Top500rankingsafter Intel-based solutions (and AMD systems run a close third), whileIT Jungle slices the latest rankings in many interesting ways. --Nora Mikes