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Software bug derailed Windows bid to top Linux in supercomputing speed

Nov 18, 2010, 21:34 (11 Talkback[s])
(Other stories by Jon Brodkin)

"One reader who commented on the blog post joked that Tokyo officials "didn't have enough licenses to run [Windows] on that many."

"But it turns out a software bug prevented the Windows HPC Server run from matching Linux's speed and ability to run across more nodes. The bug was not in Windows HPC Server itself but rather in a software package Microsoft designed to run the Top 500 benchmarking test.

"Satoshi Matsuoka, professor at the Tokyo Institute of Technology, explained it to me today at the SC10 supercomputing conference in New Orleans, saying Linux's victory "was purely by chance."

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