[gmx-users] Tesla GPUs: P40 or P100?

[Szilárd Páll]

Hi,

I strongly recommend the Quadro RTX series,  6000 or 5000. These should not
be a lot more expensive, but will be a lot faster than the Pascal
generation cards. For comparisons see our recent paper:
https://doi.org/10.1002/jcc.26011

Cheers,
--
Szilárd

On Thu, Sep 19, 2019, 09:50 Matteo Tiberti <matteo.tiberti at gmail.com> wrote:

> Hi all,
>
> we are considering getting a new server, mainly for GROMACS and for other
> CPU-intensive tasks.
>
> Unfortunately we are unable to buy consumer GPUs and we need to get Teslas
> to accelerate GROMACS and possibly for other MD workload in the future.
> Both P40 and P100 fit our budget, and I'd be inclined towards the P40 for
> the slightly better single-precision performance and larger memory. The P40
> has however lower bandwidth and much lower double-precision performance
> respect
> to the P100 (it's more similar to a consumer GPU in this extent), which
> shouldn't matter as far as GROMACS is concerned right now. I've seen some
> talk in the mailing list about implementing mixed/fixed precision modes in
> GROMACS, and for what I gathered it's unlikely to happen anytime soon, so I
> believe the P40 to be a future-proof choice (at least in the short-medium
> term).
>
> This said, I feel like the P40 isn't getting much recognition both in the
> mailing list and in the "bang for your bucks" papers - so my question boils
> down to, is there any reason we should prefer the P100 card over the P40?
>
> Thanks for your help!
>
> Matteo
> --
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