Hi Michael,

On Wednesday 13 June 2007 02:35:28 pm Michael Edwards wrote:
> You should not need to invoke switcher in your submission scripts,

Exactly, but I could not find any way to prevent this from happening. Even 
after I disabled switcher globally it was still producing the same Tcl error 
under SGE. So I had to remove it completely to get rid of it.

> switcher sets the proper environment for your user and then your jobs
> are run as your user so the environment is correct.  In SGE, you
> should simply have to do
>
> mpirun /my/path/mpifoo.exe
>
> And it should "Just Work".  If everyone in your group uses the same
> mpi anyway, then you don't need switcher at all...

I know it should "just work"... in ones dreams ;-) For instance, I have spent 
whole day trying to debug another weird problem: I want all of the home 
directories on the cluster to be NFS-mounted on an external fileserver, not 
on the master node as in default OSCAR setup. Pretty simple thing, isn't it? 
I've changed /etc/fstab accordingly, added proper entries to /etc/exports on 
the server and connect it to the same switch the rest of the cluster using. 
Restarting netfs worked without errors, no errors on server either, but all 
filesystems are mounted read-only, that's it. Exportfs on server says they 
are exported rw, mount on client says the are mounted rw, rpcbind and nfslock 
services checked Ok, firewall not in the way (and I tried disabling it), 
rebooted both server and clients to be sure -- nothing helped. Any write 
access to NFS mounts on clients is denied, no matter what I tried.

And you say it should just work...

Cheers,
Ivan

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