[gmx-users] -gpu_id option with more than 10 GPUs

[Szilárd Páll]

On Wed, Oct 14, 2015 at 10:35 AM, Mark Abraham <mark.j.abraham at gmail.com>
wrote:

> Hi,
>
> Indeed, that is a limitation that we need to fix some time soon. I haven't
> seen any nodes with 10 GPUs yet, though :-)
>

Not too exotic examples that support 8 double-width cards, packed with K80s
that gives 16 devices.

http://www.supermicro.com/products/system/4U/4028/SYS-4028GR-TRT.cfm
http://exxactcorp.com/index.php/solution/solu_detail/207

--
Szilárd



>
> Mark
>
> On Wed, Oct 14, 2015 at 8:35 AM Robert McGibbon <rmcgibbo at gmail.com>
> wrote:
>
> > Hi all,
> >
> > Is there any way to use the mdrun -gpu_id option to set the PP rank to
> GPU
> > mapping on a system with more than 10 GPUs per node? IIUC, the
> > delimiter-free format string makes it impossible to pass gpuids of 10 or
> > larger.
> >
> > -Robert
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