Oob/tcp should likely be good enough.

Do you want to force the two and see if there's noticeable difference for you?

mpirun --mca oob tcp ...
mpirun --mca oob ud ...



> On Jun 19, 2018, at 6:14 PM, Ben Menadue <ben.mena...@nci.org.au> wrote:
> 
> Hi Jeff,
> 
> What’s the replacement that it should use instead? I’m pretty sure oob/ud is 
> being picked by default on our IB cluster. Or is oob/tcp good enough?
> 
> Cheers,
> Ben
> 
>> On 20 Jun 2018, at 5:20 am, Jeff Squyres (jsquyres) via devel 
>> <devel@lists.open-mpi.org> wrote:
>> 
>> We talked about this on the webex today, but for those of you who weren't 
>> there: we're talking about removing the oob/ud component:
>> 
>>   https://github.com/open-mpi/ompi/pull/5300
>> 
>> We couldn't find anyone who still cares about this component (e.g., LANL, 
>> Mellanox, ...etc.), and no one is maintaining it.  If no one says anything 
>> within the next 2 weeks, we'll remove oob/ud before the branch for v4.0.0.
>> 
>> -- 
>> Jeff Squyres
>> jsquy...@cisco.com
>> 
>> _______________________________________________
>> devel mailing list
>> devel@lists.open-mpi.org
>> https://lists.open-mpi.org/mailman/listinfo/devel
> 
> _______________________________________________
> devel mailing list
> devel@lists.open-mpi.org
> https://lists.open-mpi.org/mailman/listinfo/devel


-- 
Jeff Squyres
jsquy...@cisco.com

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