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To: PreciousLiberty
It’s impressive at almost 1/2 million cores, but (so far) isn’t using the heterogeneous approach of adding GPU processing.

Well, at 548,000+ cores, I'd say it's got more than a half million cores. :)

And according to this PDF (Page 10), The way it manages on-chip cache probably makes up for it's lack of GPU usage.

And the new interconnect model it's using is pretty sweet. After looking through the specs, I don't actually see any internal switches being used, but it's pushing out 100GB/s per core.

9 posted on 06/20/2011 7:48:08 AM PDT by ShadowAce (Linux -- The Ultimate Windows Service Pack)
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To: ShadowAce

“Well, at 548,000+ cores, I’d say it’s got more than a half million cores. :)”

Oops, guess I misremembered the number. BTW, the PDF you references mentions “over 640K cores” (p. 2).

“And according to this PDF (Page 10), The way it manages on-chip cache probably makes up for it’s lack of GPU usage.”

Can’t be, the highly parallel GPUs pump out far more FLOPs per watt for appropriate problems than any traditional CPU. This computer simply has a whole lot of CPUs. Simpler programming, but less compute density and efficiency.

“And the new interconnect model it’s using is pretty sweet. After looking through the specs, I don’t actually see any internal switches being used, but it’s pushing out 100GB/s per core.”

The Tofu 6D mesh/torus interconnect is implicitly a switch fabric. They’ve been able to adapt MPI to their system.


10 posted on 06/20/2011 8:04:55 AM PDT by PreciousLiberty
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