Sorry for the typo in the subject, I meant "Topology" ;)
On 5/9/16 5:58 PM, Mehmet Belgin wrote:
Greetings!
We've been receiving this error for a while on our 64-core Interlagos
AMD machines:
****************************************************************************
* hwloc has encountered what looks like an error from the operating
system.
*
* Socket (P#2 cpuset 0x0000ffff,0x0) intersects with NUMANode (P#3
cpuset 0x0000ff00,0xff000000) without inclusion!
* Error occurred in topology.c line 940
*
* Please report this error message to the hwloc user's mailing list,
* along with the output+tarball generated by the hwloc-gather-topology
script.
****************************************************************************
I've found some information in the hwloc list archives mentioning this
is due to buggy AMD platform and the impact should be limited to hwloc
missing L3 cache info (thanks Brice). If that's the case and processor
representation is correct then I am sure we can live with this, but I
still wanted to check with the list to confirm that (1) this is really
harmless and (2) are there any known solutions other than upgrading
BIOS/kernel?
The hwloc-gather-topology output is also attached.
Our schedulers (Torque/Moab) and MPI stacks highly rely on hwloc and I
need to ensure that this is not a critical issue, so any suggestions
will help.
Thank you!
-Mehmet
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--
=========================================
Mehmet Belgin, Ph.D. (mehmet.bel...@oit.gatech.edu)
Scientific Computing Consultant | OIT - Academic and Research Technologies
Georgia Institute of Technology
258 4th Str NW, Rich Building, Room 326
Atlanta, GA 30332-0700
Office: (404) 385-0665
