On 6/9/10 12:30 AM, Laurence Cooke wrote: > I have password-less ssh and rsh (I've tried both; same > "Connection refused" error). My home directory is NFS mounted to all > slave machines. I successfully ran parallel python with Modeller9v7 in > the past with this setup but now since updating to Mod9v8 I'm not able > to run the same scripts. It's been a while since I've used Modeller so > I'm not sure if the problem is due to updating Modeller or changes that > might have occurred in the computer configurations. Again ssh and rsh > work seamlessly between all nodes without passwords.
It's not a change between 9v7 and 9v8 - in fact, the parallel framework was not modified at all between these two releases.
If the connection is refused, I can think of only two possibilities:
1. You have a firewall preventing such connections (in this case no Modeller jobs will run).
2. The master process died (thus closing the listening socket) before the slave was able to start up - perhaps due to a syntax error in your script. In this case you should be able to see it from the master output (not the slave output).
Ben Webb, Modeller Caretaker