[CP2K-user] [CP2K:13794] Re: Regarding GPU version

[Alfio Lazzaro]

Hello Jörg,
Although CP2K doesn't A100 optimized kernels, you can always use the V100 
ones. I don't expect a big performance impact.
But if you really want to, please check here on how to optimize for 
A100: https://cp2k.github.io/dbcsr/develop/page/3-developer-guide/3-programming/2-accelerator-backend/2-libsmm_acc/3-tune.html

Best regards,

Alfio

Il giorno mercoledì 28 ottobre 2020 alle 23:26:28 UTC+1 sassy ha scritto:

> Hi Fabian, hi all.
>
> I am hijacking a bit this thread as I think it is relevant. 
> I will have access to a GPU test machine which got the new Ampere GPU 
> cards 
> installed. If I get the Wiki page correctly, I would need to set the GPU 
> version to A100, i.e.
> --gpu-ver=A100
>
> Are the Ampere cards already supported in CP2K? Given that the latest 
> version 
> was released *before* the Ampere cards were around, I got the feeling that 
> might not be the case. 
>
> Thanks for your help.
>
> All the best from a dark and cold London
>
> Jörg
>
>
> Am Dienstag, 18. August 2020, 08:41:34 GMT schrieb fa... at gmail.com:
> > Hi Bidesh,
> > 
> > this option will select the which architecture to optimize for. You can
> > simply choose the one which is closest to you card. According to
> > https://en.wikipedia.org/wiki/CUDA the GTX 1660 Ti has compute 
> capability
> > 7.5, so you should use --gpu-ver=V100
> > 
> > Best,
> > Fabian
> > 
> > On Tuesday, 18 August 2020 at 09:23:08 UTC+2 bide... at gmail.com 
> wrote:
> > > Hi all,
> > > 
> > > I don't know if this topic is relevant or not but I am facing a problem
> > > while compiling cp2k with cuda.
> > > I have a GPU nVIDIA GTX1660ti. I have installed CUDA. Now while 
> compiling
> > > what should I put in --gpu-ver=. As its showing only K20X, K40, K80, 
> P100,
> > > V100 are allowed.
> > > Thanks in advance.
> > > 
> > > Bidesh Kirtania
> > > Research Scholar
>
>
>
>
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