Am 14.03.2011 um 16:11 schrieb Esztermann, Ansgar: > On Mar 12, 2011, at 1:04 , Dave Love wrote: > >> "Esztermann, Ansgar" <[email protected]> writes: >> >>> Well, core IDs are unique only within the same socket ID (for older CPUs, >>> say Harpertown), so I would assume the same holds for node IDs -- it's just >>> that node IDs aren't displayed for Magny-Cours. >> >> What exactly would you expect? hwloc's lstopo(1) gives the following >> under current RedHat 5 (Linux 2.6.18-238.5.1.el5) on a Supermicro H8DGT >> (Opteron 6134). It seems to have the information exposed, but I'm not >> sure how it should be. (I guess GE should move to hwloc rather than >> PLPA, which is now deprecated and not maintained.) >> >> Machine (63GB) >> Socket #0 (32GB) >> NUMANode #0 (phys=0 16GB) + L3 #0 (5118KB) >> L2 #0 (512KB) + L1 #0 (64KB) + Core #0 + PU #0 (phys=0) >> L2 #1 (512KB) + L1 #1 (64KB) + Core #1 + PU #1 (phys=1) >> L2 #2 (512KB) + L1 #2 (64KB) + Core #2 + PU #2 (phys=2) >> L2 #3 (512KB) + L1 #3 (64KB) + Core #3 + PU #3 (phys=3) >> NUMANode #1 (phys=1 16GB) + L3 #1 (5118KB) >> L2 #4 (512KB) + L1 #4 (64KB) + Core #4 + PU #4 (phys=4) >> L2 #5 (512KB) + L1 #5 (64KB) + Core #5 + PU #5 (phys=5) >> L2 #6 (512KB) + L1 #6 (64KB) + Core #6 + PU #6 (phys=6) >> L2 #7 (512KB) + L1 #7 (64KB) + Core #7 + PU #7 (phys=7) > ... > > That's exactly what I'd expect... > The interface at /sys/devices/system/cpu/cpuN/topology/ doesn't know about > NUMANodes, only about Sockets and cores. Thus, cores #0 and #4 in the output > above have the same core ID, and SGE interprets that as being one core with > two threads.
`lscpu` also seems to do it in the correct way for me, although I found discussions on the net that it's also not working under certain circumstances. -- Reuti > > A. > -- > Ansgar Esztermann > DV-Systemadministration > Max-Planck-Institut für biophysikalische Chemie, Abteilung 105 > > > _______________________________________________ > users mailing list > [email protected] > https://gridengine.org/mailman/listinfo/users > _______________________________________________ users mailing list [email protected] https://gridengine.org/mailman/listinfo/users
