Hello,
Quoting Jeroen Kleijer <jeroen.kleijer_at_[hidden]>:
>
> Hi,
>
> I'm setting up a compute environment with a load scheduler and submit
> mechanism (Sun Grid Engine) where we basically want our users to use
> the submit mechanism and disallow them a direct logon to the
> computational nodes of the cluster. (rsh and ssh not allowed)
>
> For most applications this works just fine but almost every MPI
> implementation requires a working, passwordless rsh / ssh logon.
> This poses a bit of a problem because if I go this route, every user
> will logon to a node of their choosing and start their job locally
> instead of submitting it thereby clogging up resources which would
> otherwise be managed by SGE.
>
> Do you have any suggestions for this type of problem?
in SGE you have a built in rsh, which can't be used outside the queuing system.
This is sufficient to start the daemons in start_proc_args with "qrsh". In
stop_proc_args you can use the lamhalt and the users only have to use the
mpirun. I'm just preparing a new Howto for SGE-LAM integration, because the
available one seems a little bit out of date.
Just today I posted two links to use M....2 (I don't dare to write the full
name here on a LAM list) with daemons in SGE on the SGE users list, and the
startup of LAM daemons is similar I think.
Cheers - Reuti
|
