[gmx-users] GROMACS performance issues on POWER9/V100 node

[Szilárd Páll]

> The following lines are found in md.log for the POWER9/V100 run:
>
> Overriding thread affinity set outside gmx mdrun
> Pinning threads with an auto-selected logical core stride of 128
> NOTE: Thread affinity was not set.
>
> The full md.log is available here:
> https://github.com/jdh4/running_gromacs/blob/master/03_benchmarks/md.log


I glanced over that at first, will see if I can reproduce it, though I only
have access to a Raptor Talos, not an IBM machine with Ubuntu.

What OS are you using?


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