mpirun is not an MPI process, and so it doesn't obey the btl port params. To control mpirun's ports (and those used by the ORTE daemons), use the oob_tcp_port... params
On Dec 10, 2010, at 3:29 PM, Tang, Hsiu-Khuern wrote: > > Hi, > > I am trying to understand how to control the range of ports used by Open MPI. > I tried setting the parameters btl_tcp_port_min_v4 and btl_tcp_port_range_v4, > but they don't seem to have an effect. > > I am using Open MPI 1.4.2 from Debian sid, but get the same result on RHEL5. > > When I run a program like > > mpirun --host host1,host2 -np 2 --mca btl_tcp_port_min_v4 10000 --mca > btl_tcp_port_range_v4 10 sleep 100 > > and then in another terminal run "netstat -plnt", should I expect to see > mpirun > listening on one or more ports between 10000 and 10009? I don't -- mpirun is > invariably listening on some other ports. > > Thanks! > > -- > Best, > Hsiu-Khuern. > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users
