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IBM Dominates Supercomputer Rankings: Page 2 of 3

IBM continues to be the dominant vendor on the list with 43.8 percent of the systems, slightly up from 43.2 percent a year ago. Hewlett-Packard maintained its second-place standing in the survey with 33.8 percent of all systems.

IBM’s systems represented 52.8 percent of the total installed performance of computers on the list, compared to 18.8 percent for HP. No other computer maker captured more than seven percent in any category.

Intel microprocessors are at the heart of two-thirds (333) of all 500 systems. Eighty-one of the systems used Intel’s latest 64-bit Xeon processors.
AMD’s 64-bit Opteron processors gained ground with 55 systems using them compared to only 25 systems in the ranking six months ago.

IBM had the second most popular processor architecture among top 500 systems. Its Power chips appeared in 73 systems.

Clusters continue to be the most popular architecture among systems on the list with 360 clusters in the current ranking. That’s up from 296 clusters a year ago. On the current list, 249 clusters used Gigabit Ethernet as an interconnect, while 70 used Myricom’s Myrinet.