Hi, I don't know whether this is a bug or my setting problem. So I want to check this before reporting bug.
This is the error message from mpirun [[22878,1],3][../../../../../../ompi/mca/btl/tcp/btl_tcp_endpoint.c:589:mca_ btl_tcp_endpoint_start_connect] from ray003 to: gamma00 Unable to connect to the peer 10.51.111.1 on port 4: Network is unreachable gamma00 has several different IP address with virtual interfaces. eth2 = 10.51.1.1 - MPI network eth2:0 = 10.51.2.1 eth2:1 = 10.51.111.1 Since ray003 is in 10.51.1.0 network, they should connect gamma00 using 10.51.1.1. I also specified it in /etc/hosts in ray003. This is an new thing for Squeeze, The same configuration was working with Lenny. Another thing I found was that it didn't recognize the default host file at /etc/openmpi/openmpi-default-hostfile It worked after I manually added the line orte_default_hostfile = /etc/openmpi/openmpi-default-hostfile in the /etc/openmpi/openmpi-mca-params.conf Is there anybody have an answer for these? Sam Park. -------------- Innovation for the Future Radiation Oncology ( <http://rophys.meds.case.edu/> http://rophys.meds.case.edu) (Samuel) Byeongjun Park, Ph.D. -- Research associate of Sohn Lab. Case Western Reserve Univerisity, School of Medicine Visiting: Wood building W517, Phone: 1-216-368-6583