[mpich-discuss] how do I configure a passwordless SSH for communication between nodes?

[Jeff Hammond]

https://www.digitalocean.com/community/tutorials/how-to-set-up-ssh-keys--2
covers this in a generic context.

Jeff

On Thu, Jun 4, 2015 at 4:44 AM, Moshe Goldstein <goldmosh at g.jct.ac.il> wrote:
> Dear all,
>
> This is my first post to this list.
>
> I successfully installed MPICH2 in the two Ubuntu Linux 14.04 workstations I
> have in my lab. I also successfully run an mpi program in everyone of the
> two workstations alone, but when I tried to run the same program using the
> "machinefile" option (in order to run it in both machines in parallel), a
> password prompt is shown.
> I found in the internet instructions how to allow passwordless communication
> between nodes, but it continues to require a password.
> Could you, please, tell me what I need to do in order to allow the two nodes
> to communicate without the need of a password?
>
> Thank you in advance for your help.
> -- Dr. Moshe Goldstein
>    Computer Science Dept.
>    Jerusalem College of Technology
>    Jerusalem, Israel
>
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-- 
Jeff Hammond
jeff.science at gmail.com
http://jeffhammond.github.io/
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