[gmx-users] # of threads different than # of cores -> gmx hangs.

Szilárd Páll pall.szilard at gmail.com
Thu Nov 21 18:05:20 CET 2013


Hi,

It's not expected, but instead of trying to figure out what the issues
is with 4.6.1, you should really update to the latest version. If the
problem persists with 4.6.4, we shall have a closer look.

Cheers,
--
Szilárd


On Thu, Nov 21, 2013 at 11:38 AM, XAvier Periole <x.periole at rug.nl> wrote:
>
> Dears,
>
> When running on multiple nodes I get GMX-461 hanging if the number of threads is not a multiple of the number of cores.
>
> example: with 11 nodes having 24 cores each, defining 253 threads (23 threads per node) or 264 threads (24 threads per node) would work but defining 256 threads would result in mdrun to hang for long time.
>
> That might be expected and not really an issue but that be nice if anyone knows why.
>
> Thanks,
> XAvier.
> --
> Gromacs Users mailing list
>
> * Please search the archive at http://www.gromacs.org/Support/Mailing_Lists/GMX-Users_List before posting!
>
> * Can't post? Read http://www.gromacs.org/Support/Mailing_Lists
>
> * For (un)subscribe requests visit
> https://maillist.sys.kth.se/mailman/listinfo/gromacs.org_gmx-users or send a mail to gmx-users-request at gromacs.org.


More information about the gromacs.org_gmx-users mailing list