Jeff Squyres wrote:
>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.
>
>
>
Thank you for the excellent explaination!
I think I will contact the MPICH authors.
Sincerely,
Jason Edgecombe
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