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Re: Embarrassingly Parallel Tasks on HPC
From: |
Matt Oates (Home) |
Subject: |
Re: Embarrassingly Parallel Tasks on HPC |
Date: |
Wed, 29 Aug 2012 18:40:31 +0100 |
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.