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Subject: Re: [hwloc-devel] multiple simultaneous topology inits?
From: Brice Goglin (Brice.Goglin_at_[hidden])
Date: 2011-02-28 16:17:57

Le 28/02/2011 22:04, Jeff Squyres a écrit :
> That being said, someone cited on this list a long time ago that running the hwloc detection on very large machines (e.g., SGI machines with 1000+ cores) takes on the order of seconds (because it traverses /sys, etc.). So if you want your tool to be used on machines like that, then it might be better to do the discovery once and share that data among your threads.

People running on such large machines should really export the machine
topology to XML once and reload from there all the time.