Abel use old
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Revision as of 09:21, 13 December 2012 by Alexajo@uio.no (talk | contribs)
Get onto abel
ssh abel.uio.no
Getting a single cpu for 11 hrs
qlogin --account nn9244k --nodes 1 --ntasks-per-node 1
Same, for 24 hrs
qlogin --account nn9244k --nodes 1 --ntasks-per-node 1 --time 24:00:00
NOTE you aresharing the node with others, do no use more than the number of cpus you asked for
NOTE a pipeline of unix commands may use one cpu per command:
grep something somefile | sort | uniq -c
This may use three cpus!
Getting a whole node with 16 CPUs and 64 GB RAM:
qlogin --account nn9244k --nodes 1 --ntasks-per-node 16 --time 24:00:00
Even though each node has 16 cpus, due to hyperthreading, you can run up to 32 processes simultaneously
You have a large work area available as well:
echo $SCRATCH cd $SCRATCH
Using
squeue -u your username
will tell you the job ID, the work area is
/work/jobID.d
NOTE all data on this area is deleted once you log out
Quitting:
logout (or ctrl-d)