On Fri, 04 May 2012, Don Armstrong wrote: > On Fri, 04 May 2012, TERRY DONTJE wrote: > > Sorry if this is a stupid question but what is eth0:1 (it's under > > eth0). Are the 172.16.30.X addresses pingable to each other? > > Yes. They're all on the same physical subnet.
Even though this might have seemed like a stupid question, it put me onto the right track. Apparently, mca_btl_tcp_endpoint_accept (or similar) is unable to handle multiple IP addresses on the same interface, and rejects the connection. Changing the network topology to only have one address on each physical network adapter resolves the problem, and connections are made properly. Don Armstrong -- PowerPoint is symptomatic of a certain type of bureaucratic environment: one typified by interminable presentations with lots of fussy little bullet-points and flashy dissolves and soundtracks masked into the background, to try to convince the audience that the goon behind the computer has something significant to say. -- Charles Stross _The Jennifer Morgue_ p33 http://www.donarmstrong.com http://rzlab.ucr.edu
