Double check that you have firewalls (e.g., iptables) disabled.
On May 3, 2012, at 5:42 PM, Don Armstrong wrote: > On Thu, 03 May 2012, Rolf vandeVaart wrote: >> I tried your program on a single node and it worked fine. > > It works fine on a single node, but deadlocks when it communicates in > between nodes. Single node communication doesn't use tcp by default. > >> Yes, TCP message passing in Open MPI has been working well for some >> time. > > Ok. Which version(s) of openmpi are you using successfully? [I'm > assuming that this is in an environment which doesn't use IB.] > >> 1. Can you run something like hostname successfully (mpirun -np 10 >> -hostfile yourhostfile hostname) > > Yes, but this only shows that processes start and output is returned, > which doesn't utilize the in-band message passing at all. > >> 2. If that works, then you can also run with a debug switch to see >> what connections are being made by MPI. > > You can see the connections being made in the attached log: > > [archimedes:29820] btl: tcp: attempting to connect() to [[60576,1],2] address > 138.23.141.162 on port 2001 > >> I would suggest reading through here for some ideas and for the >> debug switch. > > Thanks. I checked the FAQ, and didn't see anything that shed any > light, unfortunately. > > > Don Armstrong > > -- > Fate and Temperament are two words for one and the same concept. > -- Novalis [Hermann Hesse _Demian_] > > http://www.donarmstrong.com http://rzlab.ucr.edu > _______________________________________________ > 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/
