Thank you explicitly setting the interface like below has resolved this.
Thanks,
Dean
> On 28 Nov 2020, at 10:27, Gilles Gouaillardet via users
> wrote:
>
> Dean,
>
> That typically occurs when some nodes have multiple interfaces, and
> several nodes have a similar IP on a private/unused
Dean,
That typically occurs when some nodes have multiple interfaces, and
several nodes have a similar IP on a private/unused interface.
I suggest you explicitly restrict the interface Open MPI should be using.
For example, you can
mpirun --mca btl_tcp_if_include eth0 ...
Cheers,
Gilles
On Fr
