Christophe,
Looks like a firewall problem. Please check the mailing list archives
for the proper fix.
Thanks,
george.
On Sep 17, 2008, at 6:53 AM, Christophe Spaggiari wrote:
Hi,
I am new to MPI and try to get my Open MPI environment up and
running. I have two machines Alpha and Beta, on which I have
successfully installed Open MPI in /usr/local/openmpi. I have made
the ssh setting to not have to enter password manually (using rsa
keys), and I have modified the .rc files to get the right path and
right LD_LIBRARY_PATH when login using ssh on both machines.
In order to check if my installation was working I have started
"mpirun hostname" on Alpha and it is working just fine.
I have tested as well "mpirun hostname" on Beta and it is working
fine too.
I have tested "ssh beta env" to check that my setting are correct
and it is working as expected.
BUT when I am running "mpirun -host beta hostname" from Alpha
nothing happens. After several minutes I have to kill the "mpirun"
process with Ctrl-C (two times). Does any of you run into similar
problem and could tell me what I am doing wrong ? It seems that each
local installation are working fine but I can not start tasks on
other nodes.
The interesting point is that when I run a "ps" on Beta I can see
that a "orted" process is started (and stay in process list) for
each of my try to run "mpirun" command from Alpha. So somehow Beta
gets the command to start orted and does it but then, nothing
happens .......
I have been browsing the users list for similar issues and I found
one guy describing exactly the same problem but it was no answer to
his post.
Not sure if this is relevant but Alpha and Beta are Sony PS3
machines running Yellow Dog Linux 6.1
Thanks in advance for your help.
Regards,
Chris
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