I'm afraid this doesn't make much sense to me. LSF has dispatched node1 and node2 - correct? It sounds like you have also given those names aliases that refer to their IB ports - generally a very bad practice, but let's set that aside for now.
If they are the same physical nodes, then the node name makes no difference - OMPI will see both TCP and IB on the node and use them. You can control which interfaces get used by simply telling OMPI on its command line: mpirun -mca btl tcp,sm,self ... will use shared memory and TCP mpirun -mca openib,sm,self ... will use IB and shared memory Using host names to try and control which network gets used isn't going to work - the software is too smart to be fooled that way. On Feb 2, 2013, at 6:33 AM, HM Li <li...@163.com> wrote: > Can you help me? > > The bnode1.bnode2 and node1,node2 are the hostnames of the same nodes > corresponding to the InfiniBand and ethernet network respectively. > The node1,node2 are the nodes declarated in lsf.cluster.name > In order to use the IB network, I have modified the lsf mpijob script, and > modified the HOSTFILE containing the nodes which LSF dispatched from node to > bnode. > Then use "mpiexec -machinefile $HOSTFILE $COMMANDLINE" to run my jobs. > But the job exits and shows: > ------------------------------------------------------------- > A hostfile was provided that contains at least one node not > present in the allocation: > > hostfile: /home/nic/hmli/.lsbatch/bhost23263.node1 > node: bnode2 > > If you are operating in a resource-managed environment, then only > nodes that are in the allocation can be used in the hostfile. You > may find relative node syntax to be a useful alternative to > specifying absolute node names see the orte_hosts man page for > further information. > ------------------------------------------------------------- > > I don't want to change the hostname from node to bnode in lsf.cluster.name. > > Thank you very much. > > > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users
