mpich using ssh

[Paul Nowoczynski]

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.
paul

On Tue, 1 Aug 2000, Jon Tegner wrote:

> Hello,
> 
> 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)?
> 
> Thanks!
> 
> /jon
> 
> 
> 
> 
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