[GE users] rlimit openmpi IB error

hargitai joseph.hargitai at nyu.edu
Wed May 27 10:42:00 BST 2009


----- Original Message -----
From: dougalb <dougal.lists at gmail.com>
Date: Wednesday, May 27, 2009 2:02 am
Subject: Re: [GE users] rlimit openmpi IB error

> Hi,
> 
> Normally I set the execd_params H_MEMORYLOCKED=<mem in node>G. Have
> not had an issues since.
> 
> e.g. H_MEMORYLOCKED=48G
> 
> -Dougal


This might be worth trying vs infinity. Infinity on a heavily multicore system may exhaust this parameter from the first few process request, well before it gets to the last few, like 14-16,

Another question - is there a difference between the two settings, infinity and unlimited? 

best,
joseph

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