SLI is irrelevant. Long before I wrote the AMBER code, I worked on the SLI
project at NVIDIA in its formative days. That said, there is some
technology in SLI that could be exploited to improve the performane of
multi-GPU CUDA, but it hasn't been done yet as it's a lot of work.
CPU is mostly irrelevant. Just buy the current best !/$ CPU and spend the
rest of the money on GPUs.
2011/9/15 Marek Maly <marek.maly.ujep.cz>
> Hi All,
> I have just two quick technical questions
>
> Am I right that contrary to gaiming/graphical applications, SLI is not
> actually so important for
> Amber parallel GPU calculations ( just deducing from this contribution
> http://archive.ambermd.org/201106/0005.html )
>
> Or Am I wrong ?
>
> Another thing.
>
> If one thinks also about AMD alternative to build multi-GPU system ( for
> example "MSI 990FXA-GD80 - AMD 990FX" + 3 x GPU)
> is it worth to wait a little for new AMD FX "Bulldozers" ? Based on
> several discussions here I think, that speaking just
> about Amber GPU calculations, difference in using "AMD Phenom II X6 1100T
> Black Edition" or new 6 or 8 cores Bulldozer
> will be negligible. So only in case, that the machine will be used also
> for non-GPU calculations ( for example MM-PBSA
> analyses ) one can obtain some interesting gain using new AMD FXs so in
> such a case it is worth to wait some last weeks ( hopefully :))
> ) for these nice 32nm guys.
>
> Am I right ?
>
> Thanks in advance for your comments !
>
> Best wishes,
>
> Marek
>
>
>
>
>
>
>
>
>
> --
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> http://www.opera.com/mail/
>
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Received on Thu Sep 15 2011 - 12:30:03 PDT
