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[Condor-users] Core detection - AMD 6180 SE
- Date: Tue, 7 Aug 2012 12:28:35 +0100
- From: Brian Candler <B.Candler@xxxxxxxxx>
- Subject: [Condor-users] Core detection - AMD 6180 SE
[Ubuntu 12.04, condor 7.8.1]
I am using some boxes with four AMD 6180 SE processors. Everything I can
find on the web describes these as "12 core" processors, which suggests I
have 48 real cores available.
I have configured condor with:
COUNT_HYPERTHREAD_CPUS = False
SLOT_TYPE_1 = cpus=100%, ram=95%, swap=100%, disk=100%
SLOT_TYPE_1_PARTITIONABLE = True
NUM_SLOTS_TYPE_1 = 1
and it tells me that there are only 24 cores ("DetectedCPUs" is 48, but
"TotalCPUs" is 24). That is, Condor says there is hyperthreading.
I think I'm not the first to come across this:
/proc/cpuinfo shows core id 0..5 and 0..5 for the 12 cores on one physical
_CONDOR_ALL_DEBUG=D_ALL condor_config_val -debug NUM_CPUS
shows these are considered by condor to be the same core.
If there hasn't been any progress on this, could it be added to "known bugs"