[gmx-users] Gromacs 4.6 with CUDA 4.2

[Roland Schulz]

On Wed, Apr 25, 2012 at 9:38 AM, Szilárd Páll <szilard.pall at cbr.su.se>wrote:

> On Wed, Apr 25, 2012 at 11:43 AM, SebastianWaltz
> <sebastian.waltz at physik.uni-freiburg.de> wrote:
> > Dear all,
> >
> > will the new version 4.6 work together with CUDA 4.2? Would be good to
> > know, since this is needed for the new NVIDIA Gemini cards with Kepler
> > technology.
>
> Yes it will. I would like to point out that the "needed" part is not
> exactly true, binaries compiled with pre-4.2 can run equally fast on
> Kepler especially if JIT compilation of PTX code is enabled.
>
> Moreover, current 4.2 pre-release compiler produces slower code than
> CUDA 4.0 not only for Fermi but also for Kepler. We'll have to see
> brins the final CUDA 4.2 release + official drivers.
>

Szilard, had you already a chance to test the 4.2 final release and can
recommend which version to use?
Is the difference in performance significant?

Roland


>
> --
> Szilárd
>
>
>
> > Thanks,
> >
> > Basti
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