On Apr 4, 2011, at 10:38 AM, Laurence Marks wrote: > Thanks, I think we may have a mistaken communication here; I assume > that the computer where they have disabled rsh and ssh they have > "something" to communicate with so we don't need to use pbsdsh.
Clarification in terminology: - rsh/ssh/pbsdsh are used to launch processes, usually on remote nodes. - communication is done via network mechanisms, such as TCP sockets. - To be clear: Open MPI doesn't use rsh/ssh/pbsdsh stdin/stdout/stderr channels to communicate. - To be totally clear: Open MPI usually closes rsh/ssh/pbsdsh sessions once the remote processes are running and established, and relies on TCP sockets (and other things) for communicating between these now-launched processes. -- Jeff Squyres jsquy...@cisco.com For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/
