HPC – The Next 20 Years

Panel at CASC Anniversary CelebrationDr. Gregory Pfister

http://perilsofparallel.blogspot.com/

Reactions When Telling Others the Topic

04/19/23Gregory F. Pfister - CASC Anniversary

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Blank stare.Laughter.What an opportunity!

You can make totally outrageous statements you will never be held accountable for!

ITRS 2008 Roadmap

04/19/23Gregory F. Pfister - CASC Anniversary

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<10 nm,100s of procs on chip, multi-TB flash chips, etc ITRS = International Technology Roadmap for Semiconductors

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Everything’s fine!

Moore’s Law Will End,with No Economical Replacement

04/19/23Gregory F. Pfister - CASC Anniversary

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Computing ⇒ cheaper, not faster (per proc)

Democratization of some HPC Traditional full-function PC will have

integrated high-end graphicsAt least TFLOPS (SP) on your lap

(for some value of “lap”) Cellphone/laptop; or

Yotta-cloud/fog/vapor Nothing in between, as far as you can tell Charged not by rack or proc, but by KWH

And possibly bandwidth.

ParallelismThere will be no savior language or architecture.

But data will be gigantic “embarrassing” or “trivial” parallelism Uninteresting, but practical

Parallel for power reduction: Pwr F2

more procs, constant time ⇒ lower power

04/19/235 Gregory F. Pfister - CASC Anniversary

Here it is, 2009, and I'm typing SQL statements into my telephone. This is not quite the future I'd imagined.

Tim Bray, on Twitter (timbray)

04/19/236 Gregory F. Pfister - CASC Anniversary