On Mon, 4 Aug 2003, Jason Edgecombe wrote:
> Does LAM 6.5.9 require a remote login program such as ssh or rsh to run?
Yes.
> We are currently running Redhat 7.3 with OSCAR and LAM 6.5.9 on a 16
> node cluster. We would like to force users to use PBS to run jobs on our
> compute nodes. Must I upgrade to LAM 7.0 for this to be possible?
Yes. One of the advantages of using the tm boot SSI module in 7.0 is that
you can effectively disable user rsh/ssh logins on the remote nodes (I
would advise against disabling ssh entirely, though -- various OSCAR
components use it for system-administration-related tasks).
Note that there are LAM/MPI 7.0 RPM's in OSCAR's CVS (i.e., they are
"OSCAR-ized" RPMs) on SourceForge for RedHat 8.0/9 and Mandrake 9.0:
http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/oscar/oscar/packages/lam/distro/
> Does anyone know if MPICH requires ssh too?
MPICH has a variety of startup mechanisms, some of which require rsh/ssh.
I'm not intimately familiar with them, so I don't want to speculate. You
might want to either read the MPICH docs or contact the MPICH authors
directly.
--
{+} Jeff Squyres
{+} jsquyres_at_[hidden]
{+} http://www.lam-mpi.org/
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