[mpich-discuss] machinefile error

[Pavan Balaji]

On 07/21/2010 02:44 PM, SULLIVAN David (AREVA) wrote:
> I have done that, as well as configured it to log in without a password.
> I have no idea why it caches the key each time. 

Is the key added to your .ssh/known_hosts file? This needs to work 
correctly before any ssh-based process manager works (including Hydra 
and MPD).

There also seems to be a second problem that processes on node2 and 
node3 are not able to connect back to node1. There are several 
possibilities for this problem.

First, node2 and node3 are not able to look up the IP address of node1: 
you can check this by seeing if you can ssh from node2 to node1 (or from 
node3 to node1).

Second, is there a firewall setup on these machines? If yes, can you 
disable the firewall?

  -- Pavan

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