[mpich-discuss] Starting processes in root on multiple machines

[Pavan Balaji]

On 06/19/2013 05:13 AM, Lee, Eibhlin wrote:
> Jim and Pavan will be glad to hear I have now switched to Hydra. I am
> able to run cpi as user on multiple machines. I am also able to run cpi
> as root on one machine. However, I am having difficulty setting up ssh
> properly so that I can run cpi as root on multiple machines.

Excellent.  Once you login as root, can you ssh into the other nodes? 
You'll need to set that up first.

> How can I force a process to run as root on another machine?

Once the above ssh is setup, you don't need to do anything special. 
Just login as root and run your application.

  -- Pavan

-- 
Pavan Balaji
http://www.mcs.anl.gov/~balaji