Can you mpirun non-MPI applications, like "hostname"? I frequently run this as a first step to debugging a wonky install. For example:
shell$ hostname barney shell$ mpirun hostname barney shell$ cat hosts barney rubble shell$ mpirun --hostfile hosts hostname barney rubble shell$ On Mar 24, 2010, at 4:28 PM, haoanyi wrote: > Hi, > > I installed OpenMPI1.4.1 as a non-root user on a cluster. It is totally OK > when I run with mpirun or mpiexec on one single node for many processes. > However, when I lauch many processes on multiple nodes, I can observe jobs > are distributed to those nodes (by using "top"), but all the jobs just hang > there and cannot finish. > > I think the nodes use TCP to communicate with each other. This cluster also > provides MPICH2, which was configured by the sys admin., and has no problem > to do node communication in MPICH2. Besides, I read from some posts, which > says this may be caused by TCP firewall. Since I have no root's right, and I > don't know what shall request the admin. to do to fix this problem. So, can > you tell me how to do that either by the admin root or by the non-root user > (if possible)? > > Thank you very much. > Hao > > > _______________________________________________ > 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/
