Hi, may I ask why you need/want to launch orted manually ?
unless you are running under a batch manager, Open MPI uses the rsh pml to remotely start orted. basically, it does ssh host orted <orted params> the best I can suggest is you do mpirun --mca orte_rsh_agent myrshagent.sh --mca orte_launch_agent mylaunchagent.sh ... under the hood, mpirun will do myrshagent.sh host mylaunchagent.sh <orted params> Cheers, Gilles On Thursday, June 2, 2016, Du, Fan <fan...@intel.com> wrote: > Hi folks > > Starting from Open MPI, I can launch mpi application a.out as following on > host1 > mpirun --allow-run-as-root --host host1,host2 -np 4 /tmp/a.out > > On host2, I saw an proxy, say orted here is spawned: > orted --hnp-topo-sig 4N:2S:4L3:20L2:20L1:20C:40H:x86_64 -mca ess env -mca > orte_ess_jobid 1275133952 -mca orte_ess_vpid 1 -mca orte_ess_num_procs 2 > -mca orte_hnp_uri 1275133952.0;tcp://host1_ip:40024 --tree-spawn -mca plm > rsh --tree-spawn > > It seems mpirun use ssh as launcher on my system. > What if I want to run orted things manually, not by mpirun automatically, > I mean, does mpirun has any option to produce commands for orted? > > As for MPICH2 implementation, there is "-launcher manual" option to make > this works, > for example: > # mpiexec.hydra -launcher manual -np 4 htop > HYDRA_LAUNCH: /usr/local/bin/hydra_pmi_proxy --control-port > grantleyIPDC04:34652 --rmk user --launcher manual --demux poll --pgid 0 > --retries 10 --usize -2 --proxy-id 0 > HYDRA_LAUNCH_END > > Then I can manually run hydra_pmi_proxy with commands, and mpiexec.hydra > will proceed on. > > Thanks! > _______________________________________________ > users mailing list > us...@open-mpi.org > Subscription: https://www.open-mpi.org/mailman/listinfo.cgi/users > Link to this post: > http://www.open-mpi.org/community/lists/users/2016/06/29346.php >
