[Tornado-users] tornado: qssh

[Per Lundqvist]

When running memory intensive applications (~ 1-2 GiB mem usage), please 
consider using a compute node or an analysis node (a1 or a2) instead of 
the login node tornado. Under heavy usage it becomes almost impossible to 
do any interactive work on the login node - which is maybe its main 
purpose.

Tip: you may easily allocate 1 compute node within the batch queuing 
system with the command:

   qssh

(you may even display graphical applications from this compute node if you 
logged in to tornado with X-forwarding enabled, use qssh -h to see 
possible options to qssh)

Example:

# log in to tornado with X-forwarding (if using the openssh-client): 
   ssh -X tornado.nsc.liu.se

# allocate 1 compute node for interactive usage for 4 hours walltime:
   qssh

# start up a graphical matlab session on this compute node
   matlab

thanks,
Per Lundqvist

-- 
Per Lundqvist

National Supercomputer Centre
Linköping University, Sweden

http://www.nsc.liu.se