On Fri, 19 Aug 2011, Reuti wrote:

| Am 19.08.2011 um 19:43 schrieb Gowtham:
| 
| > <snip> 
| > | If users want to check something on the nodes, they have to use `qrsh` 
and get an interactive queue with a set "h_cpu 60" limit.
| > | 
| > | -- Reuti
| > 
| > 
| > Thank you for your response. So far, the users who use SGE 
| > submit via qsub (most of our programs are compiled with 
| > MPICH2). Those who didn't use the SGE, made a list of 
| > 'hot nodes' and put them in machinefile. then submitted 
| > their jobs via mpirun
| > 
| > The cluster has the following programs installed on it:
| > 
| >  # Crystal 2003 | 2006 | 2009
| >  # DMol3
| >  # Gaussian 1998 | 2003 | 2009
| >  # NAMD 2.8
| >  # Quantum Espresso 4.2.1
| >  # SIESTA 1.3-f1p | 2.0.1
| >  # SMEAGOL 1.0b
| >  # VASP 4.6.28 | 4.6.31 | 5.2.2 
| > 
| > and they have been behaving well with SGE so far.
| > 
| > How would I tighten up the SSH screws so that their jobs 
| > will run but won't be able to log into compute nodes? Is
| > it via /etc/ssh/sshd_config or some other such file?
| 
| Yes, it's a line like:
| 
| AllowGroups root operator
| 
| on the nodes and put the admin staff in this additional group.
| 
| MPICH2 since 1.3 has a tight integration into SGE by default. For Gaussian 
it's necessary to adjust Linda_rsh to call a plain rsh instead of /usr/bin/rsh, 
so that the rsh-wrapper will catch it and route it to SGE's qrsh (in case you 
use Linda).
| 
| -- Reuti


Thank you! And these edits in /etc/ssh/sshd_config go on 
all the compute nodes, right? If yes, I could edit the
extend-compute.xml and have them in place for next 
re-install.

Thank you,
g


| 
| 
| > Please let me know.
| > 
| > Thanks,
| > g
| > 
| > 
| > | 
| > | 
| > | > Thanks,
| > | > g
| > | > 
| > | > --
| > | > Gowtham
| > | > Advanced IT Research Support
| > | > Michigan Technological University
| > | > 
| > | > (906) 487/3593
| > | > 
| > | > _______________________________________________
| > | > users mailing list
| > | > [email protected]
| > | > https://gridengine.org/mailman/listinfo/users
| > | 
| > | 
| 
| 
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