Hi.

Thank you very much for your answer. I've disabled iptables on both
computers and then... work like a charm. But here's come my next question,
what are the ports that the daemon use ? Because I haven't set iptables,
it's by default and I don't understand why is filtered.



2013/3/25 Ralph Castain <r...@open-mpi.org>

> Check if iptables or some other firewall is running. Configure mpirun with
> --enable-debug and then add "-mca plm_base_verbose 10" to your cmd line to
> see if the remote daemon is communicating back correctly.
>
>
> On Mar 24, 2013, at 1:50 PM, Baptiste Robert <baptisterober...@gmail.com>
> wrote:
>
> Hi everybody !
>
> Here's my problem. I've installed openmpi on my two machines running on
> fedora 17. I've set the path and LD_LIBRARY_PATH correctly, mpirun and
> mpicc work on the two machines without trouble.
>
> My problem is when I try to run the helloWorld on all node through ssh
> (already configure with certificate) nothing append, I've to kill mpi to
> get the prompt back.
>
> I launched this command : mpirun -d -host myRemoteNode -n 2 hello_c
> And this give me :
>
> [baptiste@baptiste RE51]$ mpirun -d -hostfile hosts hello_c
> [baptiste.thinkFed:02666] procdir: 
> /tmp/openmpi-sessions-baptiste@baptiste.thinkFed_0/53471/0/0
> [baptiste.thinkFed:02666] jobdir: 
> /tmp/openmpi-sessions-baptiste@baptiste.thinkFed_0/53471/0
> [baptiste.thinkFed:02666] top: openmpi-sessions-baptiste@baptiste.thinkFed_0
> [baptiste.thinkFed:02666] tmp: /tmp
> [roommateServer:01102] procdir: 
> /tmp/openmpi-sessions-baptiste@roommateServer_0/53471/0/1
> [roommateServer:01102] jobdir: 
> /tmp/openmpi-sessions-baptiste@roommateServer_0/53471/0
> [roommateServer:01102] top: openmpi-sessions-baptiste@roommateServer_0
> [roommateServer:01102] tmp: /tmp
>
> And nothing else. But if I run the hello_c on a single machine, separately, 
> the job is done and work well.
>
> If anyone have an idea it would be awesome.. I don't have a clue why it isn't 
> work.
>
> Thank.
>
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