Note that LAM/MPI 7.x uses PBS's native job-launching mechanism (named
"TM") for starting parallel jobs -- not rsh/ssh. Hence, I *think* that if
you set everyone's shell to /bin/false on the compute nodes (not root, of
course!), LAM will still function properly.
I say this with the strong disclaimer that I have not tested this. Could
you give it a whirl with a user or two and see if it works for you?
On Thu, 20 Nov 2003, Bernard Li wrote:
> I think it is important to educate the users that if they are running
> jobs outside of the batch system, it is going to hurt themselves since
> it slows down the efficiency of the system. Once you pound that into
> their head, hopefully they'll be wise enough NOT to do that.
>
> I suppose what you could do is to run some cron jobs on the nodes to
> kill off shells (depending on what system you use), but I am not 100%
> certain whether users will spawn shells to run jobs if they are
> distributed through the batch system.
>
> This is an interesting topic though, for sure :)
>
> Frank Crawford wrote:
>
> > Folks,
> > Does any one know or have some pointers to any simple methods to stop
> > cluster users logging into the compute nodes? I want to restrict our
> > cluster users to submit all the work to the cluster via PBS.
--
{+} Jeff Squyres
{+} [EMAIL PROTECTED]
{+} http://www.lam-mpi.org/
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