[OMPI users] connect failed with errno=111

[Tim Campbell]

Greetings,

I am using OpenMPI v1.2.3 via SGE on a network of amd64  
workstations.  When mpirun tries to start the processes on certain  
nodes I get the following error output.

[sr70][0,1,2][btl_tcp_endpoint.c: 
572:mca_btl_tcp_endpoint_complete_connect] connect() failed with  
errno=111
[sr71][0,1,3][btl_tcp_endpoint.c: 
572:mca_btl_tcp_endpoint_complete_connect] connect() failed with  
errno=111

Using perl -e 'die$!=111' I see that the error message is "Connection  
refused".  I am able to connect to both nodes in question via ssh and/ 
or rsh.  I changed btl_base_debug to 2, but that did not provide  
additional information.

What are some possible issues that might be causing this?  What can I  
do to get more information?

Thanks,
~Tim