[hnc_invincible] cluster back online and better

  • From: Thomas Hartmann <thomas.hartmann@xxxxxxxx>
  • To: hnc_invincible@xxxxxxxxxxxxx
  • Date: Wed, 30 Apr 2014 15:46:16 +0200

the cluster is usable again and functioning totally normal. i
successfully added the new cluster node, giving is 16 more slots.

however, the new node only has 128GB of RAM. this might seem a lot at
the beginning, but it is not. 128GB of RAM / 16 slots = 8GB per slot!!

so, please keep an eye on how much RAM you request.

if you submitted a lot of jobs and by looking at the logfiles realize,
that you requested too much, it is very easy to change it:

qalter "name" -l h_vmem=4G

sets the memory request to 4GB for all jobs with the name "name". this
only applies to jobs not currently running.

qalter "*" -l h_vmem=4G

does the same for all your scheduled jobs.

so, have fun and if you run into problems, let me know!

Dr. Thomas Hartmann

CIMeC - Center for Mind/Brain Sciences
Università degli Studi di Trento
via delle Regole, 101
38060 Mattarello (TN)

Tel: +39 0461 28 2779
Fax: +39 0461 28 3066
Email: thomas.hartmann@xxxxxxxx
Homepage: http://sites.google.com/site/obobcimec/

"I am a brain, Watson. The rest of me is a mere appendix. " (Arthur
Conan Doyle)


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