More specifically, Open MPI still uses a TCP layer for its run-time setup/teardown. That TCP can be regular ethernet, IPoIB, or any other emulation layer. Ralph's referring to the oob_tcp_if_in|exclude flags allows you to specify using your IPoIB devices, pure ethernet devices, etc.
On Apr 5, 2010, at 6:05 PM, Ralph Castain wrote: > If it is available, yes - though you can control that by setting the > oob_tcp_if_include[exclude] flags > > On Apr 5, 2010, at 3:44 PM, David Turner wrote: > > > Hi all, > > > > Please, some clarification. I have built Open MPI 1.4.1 against > > our IB verbs layer, and all seems well. But a question has come > > up about IPoIB. While all communications are using the "native" > > IB interface (verbs), will mpirun use IPoIB during job launch > > and teardown? > > > > If it matters, resource allocation is via torque. > > > > Thanks! > > > > -- > > Best regards, > > > > David Turner > > User Services Group email: dptur...@lbl.gov > > NERSC Division phone: (510) 486-4027 > > Lawrence Berkeley Lab fax: (510) 486-4316 > > _______________________________________________ > > users mailing list > > us...@open-mpi.org > > http://www.open-mpi.org/mailman/listinfo.cgi/users > > > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users > -- Jeff Squyres jsquy...@cisco.com For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/
