Re: Embarrassingly Parallel Tasks on HPC

[Matt Oates (Home)]

Hi Erik,

Welcome to the list.

On 29 August 2012 18:10, Erik Petigura <eptune@gmail.com> wrote:
> Now, I'm trying to migrate this code to a larger computer ("carver" at
> NERSC).  The command no longer works because carver requires a password for
> each ssh connection to a child node.

Is there a reason you can't just setup passwordless logins using keys?

If all the nodes on "carver" have a shared home where you login to you
only have to do ssh-copy-id once and then you no longer need to use
passwords.

On the computer you want to launch a job from you can do:

ssh-keygen -t rsa

This will hopefully create some key files: ~/.ssh/id_rsa and ~/.ssh/id_rsa.pub

Then do something like:

ssh-copy-id -i ~/.ssh/id_rsa.pub node.carver.ac.gov

>From the help pages of Carver online it very much looks like they
demand you use their PBS queue submission tools just as a matter of
billing though!

Best,
Matt.