On top of that, and iirc, there used to be a bug in Open MPI that raised some false warnings about how much memory can be registered.

OpenMPI 1.6.5 is antic now, so once you have updated your system settings (see the faq, and ensure ulimit -l is unlimited on all your nodes) and if still does not work, i suggest you try the latest Open MPI (1.10.2) and see how things go.

(and fwiw, i recommend you use Open MPI 1.10.2 even if 1.6.5 is working ...)


Cheers,


Gilles


On 5/19/2016 7:59 AM, Jeff Squyres (jsquyres) wrote:
On May 18, 2016, at 6:16 PM, Ryan Novosielski <novos...@rutgers.edu> wrote:
I’m pretty sure this is no longer relevant (having read Roland’s messages about 
it from a couple of years ago now). Can you please confirm that for me, and 
then let me know if there is any way that I can silence this old copy of 
OpenMPI that I need to use with some software that depends on it for some 
reason? It is causing my users to report it as an issue pretty regularly.
The message cites that only 32MB is able to be registered out of a total of 
128MB.  That seems low to me.

Did you look at the FAQ item and see if there are system limits that you should 
increase?


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