[Beowulf] modular motherboard prototype

Greg Lindahl lindahl at pbm.com
Fri Aug 21 13:15:54 PDT 2009

On Fri, Aug 21, 2009 at 12:04:09PM -0700, Lux, Jim (337C) wrote:

> We can guess, though.. It's an ARM running at 72 MHz, for which they
> claim 64 Dhrystone MIPS. Some of those are going to be burned in
> interprocess communication. The LPC2368 (which is what they use)
> datasheet says it draws 125mA at 3.3V running at 72MHz. (I'm pretty
> sure that doesn't include power to drive I/O pins, which is
> separately supplied).  That's about half a watt.  So they're getting
> about 128 DMIPS/Watt

In comparison, a Sheevaplug is $100, 1.2 Ghz ARM, 15 watts max for the
whole thing, and you can use gigE networking and program it with MPI.
I suppose it depends on how weird you like your hobbies to be :-)

-- g

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