In reply to http://www.open-mpi.org/community/lists/users/2006/12/2286.php
I recently switched to openmpi1.2 unfortunately the password problem still persists! I generated new rsa keys and made passwordless ssh available. This was tested by login to each node per passwordless ssh, fortunately there are only 16 nodes:-). The funny thing is it seems to be a problem only with my user and appears randomly, but more likely if I uses more nodes. One cure for the problem until now is using the option --mca pls_rsh_debug. What does this switch do other than producing more output that this resolves my problem? Two other questions what is the -ras (Resource allocation subsystem): and how can I set this up/what options to have pls (Process launch subsystem): and how can I set this up/what options to have? Regards Jens
