[Beowulf] Nvidia, cuda, tesla and... where's my double floating point?
john.leidel at gmail.com
Mon Jun 16 11:56:41 EDT 2008
Another article on the same card posted here:
On Mon, 2008-06-16 at 09:44 -0600, Craig Tierney wrote:
> Mark Hahn wrote:
> >> It is a bit weird if you claim to be NDA bound, whereas the news has
> >> it in
> >> big capitals what the new IBM CELL can deliver.
> > I thought he was referring to double-precision on Nvidia gpus,
> > which have indeed not been shipped publicly (afaik).
> An article posted today about the GTX280, which is to be release tomorrow,
> states that the GTX280 has "support for the IEEE-754R double-precision
> floating-point standard."
> >> So a very reasonable question to ask is what the latency is from the
> >> stream processors to the device RAM.
> > sure, they're GPUs, not general-purpose coprocessors. but both AMD and
> > Intel are making noises about changing this. AMD seems to be moving GPU
> > units on-chip, where they would presumably share L3, cache coherency,
> > etc. Intel's Larrabee approach seems to be to add wider vector units to
> > normal x86 cores (and more of them). I personally think the latter is
> > much more promising from an HPC perspective. but then again, both AMD
> > and Nvidia have major cred on the line - they have to deliver competitive
> > levels of the traditional GPU programming model.
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