Where Linux crushes Windows like a bug: Supercomputers
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By Steven J. Vaughan-Nichols | November 14, 2011, 10:11am PST
Summary: Linux is tiny on desktops, powerful on servers, mighty on Web servers, and rules over all on supercomputers.
With ten years in HPC under my belt, I can vouch for that. Linux flat-out is the rule in HPC.