mpich using ssh
pauln at psc.edu
Tue Aug 1 05:43:24 PDT 2000
Jon: the easiest way to do this is to have your home directories
mounted via nfs to all your cluster compute nodes. then all you have to
do is generate the keys with "ssh-keygen" on your front-end machine and
copy the "identity.pub" file to another file called "authorized_keys"
in your .ssh dir. assuming nfs mounted home dirs in your cluster,
you should now be able to ssh thoughout your cluster without passwords,
which is what you want for mpi.
On Tue, 1 Aug 2000, Jon Tegner wrote:
> As I understand it (haven't tried yet) a file
> ($HOME/.ssh/autorized_keys) containing the public keys for every node in
> the cluster has to exist on every node AND for every user. Is this
> correct? And is there an easy way to generate this file?
> Would it be easier to instead use kerberos (in which case I guess one
> needs a server separated from the cluster)?
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