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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.

Brice