Re: [HTCondor-users] AMD or INTEL

[Nathan Yehle <nyehle@xxxxxxxxxxxxxxxxxxxxx>]

We use these simple startd cron scripts at the CHTC to detect HasIntel 
and HasHT.

cat /opt/startd_cron_modules/has_intel
#!/bin/sh
CPUFILE=/proc/cpuinfo
test -f $CPUFILE || exit 1
VENDORID=`cat /proc/cpuinfo  | grep vendor_id|uniq|awk '{print $3}'`
if [ "$VENDORID" = "GenuineIntel" ]; then
echo "HasIntel=True"
else
echo "HasIntel=False"
fi

for HasHT, we compare these two values and print HasHT if they are not 
the same.
NUMCORE=`cat /opt/dmidecodeoutput  | grep -i "Core Count"|sort -u `
NUMTHREAD=`cat /opt/dmidecodeoutput  | grep -i "Thread Count"|sort -u`

-Nate

On Wed, 11 Dec 2013, Brian Candler wrote:

> > Thanks guys! I thought it might be buried in the classad somewhere.
>
> FYI, a couple of ways you can do this.
>
> (1) Write a script which checks the machine type (e.g. from /proc/cpuinfo as described) and returns "has_intel = True" or "has_amd =
> True". There is then a hook in condor where you can configure it to run this script periodically and update classads accordingly. See:
>
> http://stackoverflow.com/questions/9864766/how-to-tell-condor-to-dispatch-jobs-only-to-machines-on-the-cluster-that-have
>
> (2) I used ansible, a configuration management tool, which learned the CPU type as a "fact" from the target host, then used this to push
> out a config template which depended on this variable. In my case:
>
> {% if "AMD Opteron(tm) Processor 6180 SE" in ansible_processor %}
> #On AMD 12-core processors, comment out the COUNT_HYPERTHREAD_CPUS = False. See
> #https://www-auth.cs.wisc.edu/lists/condor-users/2011-August/msg00005.shtml
> #COUNT_HYPERTHREAD_CPUS = False
> {% else %}
> COUNT_HYPERTHREAD_CPUS = False
> {% endif %}
>
> but in a similar way you could statically add classAd info. This approach makes sense if you are going to use a centralised management
> tool anyway.
>
> Regards,
>
> Brian.