It looks like the remote daemon is starting - is there a firewall in the way?
On Jul 6, 2010, at 2:04 PM, Robert Walters wrote: > Hello all, > > I am using OpenMPI 1.4.2 on RHEL. I have a cluster of AMD Opteron's and right > now I am just working on getting OpenMPI itself up and running. I have a > successful configure and make all install. LD_LIBRARY_PATH and PATH variables > were correctly edited. mpirun -np 8 hello_c successfully works on all > machines. I have setup my two test machines with DSA key pairs that > successfully work with each other. > > The problem comes when I initiate my hostfile to attempt to communicate > across machines. The hostfile is setup correctly with <host_name> <slots> > <max-slots>. When running with all verbose options enabled "mpirun --mca > plm_base_verbose 99 --debug-daemons --mca btl_base_verbose 30 --mca > oob_base_verbose 99 --mca pml_base_verbose 99 -hostfile hostfile -np 16 > hello_c" I receive the following text output. > > [machine1:03578] mca: base: components_open: Looking for plm components > [machine1:03578] mca: base: components_open: opening plm components > [machine1:03578] mca: base: components_open: found loaded component rsh > [machine1:03578] mca: base: components_open: component rsh has no register > function > [machine1:03578] mca: base: components_open: component rsh open function > successful > [machine1:03578] mca: base: components_open: found loaded component slurm > [machine1:03578] mca: base: components_open: component slurm has no register > function > [machine1:03578] mca: base: components_open: component slurm open function > successful > [machine1:03578] mca:base:select: Auto-selecting plm components > [machine1:03578] mca:base:select:( plm) Querying component [rsh] > [machine1:03578] mca:base:select:( plm) Query of component [rsh] set > priority to 10 > [machine1:03578] mca:base:select:( plm) Querying component [slurm] > [machine1:03578] mca:base:select:( plm) Skipping component [slurm]. Query > failed to return a module > [machine1:03578] mca:base:select:( plm) Selected component [rsh] > [machine1:03578] mca: base: close: component slurm closed > [machine1:03578] mca: base: close: unloading component slurm > [machine1:03578] mca: base: components_open: Looking for oob components > [machine1:03578] mca: base: components_open: opening oob components > [machine1:03578] mca: base: components_open: found loaded component tcp > [machine1:03578] mca: base: components_open: component tcp has no register > function > [machine1:03578] mca: base: components_open: component tcp open function > successful > Daemon was launched on machine2- beginning to initialize > [machine2:01962] mca: base: components_open: Looking for oob components > [machine2:01962] mca: base: components_open: opening oob components > [machine2:01962] mca: base: components_open: found loaded component tcp > [machine2:01962] mca: base: components_open: component tcp has no register > function > [machine2:01962] mca: base: components_open: component tcp open function > successful > Daemon [[1418,0],1] checking in as pid 1962 on host machine2 > Daemon [[1418,0],1] not using static ports > > At this point the system hangs indefinitely. While running top on the > machine2 terminal, I see several things come up briefly. These items are: > sshd (root), tcsh (myuser), orted (myuser), and mcstransd (root). I was > wondering if sshd needs to be initiated by myuser? It is currently turned off > in sshd_config through UsePAM yes. This was setup by the sysadmin but it can > be worked around if this is necessary. > > So in summary, mpirun works on each machine individually, but hangs when > initiated through a hostfile or with the -host flag. ./configure with > defaults and --prefix. LD_LIBRARY_PATH and PATH set up correctly. Any help is > appreciated. Thanks! > > > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users
