[Beowulf] Nvidia, cuda, tesla and... where's my double floating point?
Craig.Tierney at noaa.gov
Mon Jun 16 11:44:58 EDT 2008
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
>> 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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Craig Tierney (craig.tierney at noaa.gov)
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