_Parallel Run with two PCs problems_

maysmech · February 24, 2011, 08:19

Dear Experts,

I want use two PCs to run parallel. Fedora 12 and OpenFOAM-1.7.0 are installed on both machines.

They have passwordless ssh connection with each other.

By using:

Code:

mpirun --hostfile ~/hosts.txt -np 8 pisoFoam -parallel

nothing happened and terminal was freezed, by using Ctrl+C the error which be appeared was:

Code:

[ssedt@ssedt4 bfs-maysam]$ mpirun --hostfile /home/ssedt/OpenFOAM/ssedt-1.7.0/run/bfs-maysam/hosts.txt -n 8 pisoFoam -parallel  
^Cmpirun: killing job...

--------------------------------------------------------------------------
mpirun noticed that the job aborted, but has no info as to the process
that caused that situation.
--------------------------------------------------------------------------
--------------------------------------------------------------------------
mpirun was unable to cleanly terminate the daemons on the nodes shown
below. Additional manual cleanup may be required - please refer to
the "orte-clean" tool for assistance.
--------------------------------------------------------------------------
    ssedt2 - daemon did not report back when launched

Both machine have same OS, OpenFOAM path and username.
I have searched a lot but there is not any suitable guide about OpenFOAM parallel available.

Any help will be appreciated

Regards.

pkr · February 24, 2011, 15:10

Check this post:
http://www.cfd-online.com/Forums/ope...tml#post292700

I saw the similar problem. The solution might be the fix for you.

Thanks.

wyldckat · February 24, 2011, 19:07

Greetings to both!

@Maysam: I've been tracking the questions you've been making about running in parallel, but I haven't found the time to answer you. But in the meantime, if the thread Pkr pointed to isn't enough, then check this:

Quote:

Originally Posted by from my signature ;)

On how to test if MPI is working: post #4 of "openfoam 1.6 on debian etch", and/or post #19 of "OpenFOAM updates"

Best regards and good luck!
Bruno

maysmech · February 26, 2011, 07:27

Dear pkr and Bruno,
Thanks a lot for your helps.

This command solved the problem:

Quote:

mpirun --mca btl_tcp_if_exclude lo,virbr0 -hostfile machines -np 2 /home/rphull/OpenFOAM/OpenFOAM-1.6/bin/foamExec interFoam -parallel

pkr · February 26, 2011, 09:36

Great, Congratulations!!

Tushar@cfd · October 20, 2012, 03:14

Dear pkr,

Are you able to solve your problem? I mean have you been successful in connecting 2 machines till now?

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February 24, 2011, 15:10		#2
pkr Member Join Date: Nov 2010 Posts: 33 Rep Power: 14	Check this post: http://www.cfd-online.com/Forums/ope...tml#post292700 I saw the similar problem. The solution might be the fix for you. Thanks.

February 26, 2011, 09:36		#5
pkr Member Join Date: Nov 2010 Posts: 33 Rep Power: 14	Great, Congratulations!!

October 20, 2012, 03:14		#6
Tushar@cfd Senior Member T. Chourushi Join Date: Jul 2009 Posts: 321 Blog Entries: 1 Rep Power: 18	Dear pkr, Are you able to solve your problem? I mean have you been successful in connecting 2 machines till now?