Top 500

[unixronin]

CNET reported this morning that AMD Opteron processors now run 81 of the world's top 500 supercomputers, up from 55 in November and 25 this time last year.  Intel, meanwhile, has slipped to 301 (including 118 running 64-bit Xeons), down from 333 in November.  Many of those losses are Itanium systems, currently 37, down from 45 in November and 79 a year ago.

IBM continues to hold the top three places, with one more in the top ten, and has more systems on the list than any other vendor (243).  SGI, Dell and Cray each have a machine in the top ten.

SGI and Cray, of course, don't surprise me.  Dell did, at first, until it occurred to me that it's doubtless simply a huge cluster of commodity boxen, as are many of the others.