Re: [Condor-users] MPICH2 wrapper script (mpich2script) for parallel universe

["Natarajan, Senthil" <senthil@xxxxxxxx>]

Hi Mark,
Thanks for your mp2script.

I was wondering do you know how to set the port range for mpd to start
on other machines.

In your script I added this,
export MPICH_PORT_RANGE=50001:59999

so the local mpd starts in the specified port range, but the mpd started
through mpdboot on remote machines are using random ports. How to start
the remote mpd also in the above specified port range. Because of the
random port number the firewall blocks the connection.

Thanks,
Senthil



-----Original Message-----
From: condor-users-bounces@xxxxxxxxxxx
[mailto:condor-users-bounces@xxxxxxxxxxx] On Behalf Of Mark Calleja
Sent: Wednesday, March 28, 2007 4:49 AM
To: Condor-Users Mail List
Subject: Re: [Condor-users] MPICH2 wrapper script (mpich2script) for
parallel universe

Hi Nkwebi,

I've modified my version of mp2script which now works with the "cpi" 
example code that MPICH2 builds when run over multiple SMP machines. 
Fancy testing it and reporting any feedback? One thing to note: there 
seems to be a bug with the current version of MPICH2 (v1.0.5p3), at 
least certainly when using the ch3:nemesis device, maybe even the 
ch3:ssm. The fix requires changing the following line in mpiexec.py (at 
around line 789):

Change this line:
    msgToMPD['ifhns'][loRange] = ifhn
to this:
    if ifhn:  msgToMPD['ifhns'][loRange] = ifhn

Thanks to Ralph Butler at MTSU for pointing this out, without which I 
couldn't get mp2script to work.

Cheers,
Mark


Nkwebi Peace Motlogelwa wrote:
> Thanks Mark for the script...I just tried it and it works fine if the 
> parallel program is  executed on a single dedicated node.. The script 
> starts mpd on the master node (rank==0 or $_CONDOR_PROCNO ==0) only, 
> and if one has many dedicated execute nodes, the script does not start

> mpd on the other nodes.. Will try to modify it to get it to start mpd 
> on all dedicated execute nodes..so far tried using mpdboot, but it 
> seems not as straight forward  to get the ring of mpd's working..
>
> regards..
>
> On 3/16/07, *Mark Calleja* <M.Calleja@xxxxxxxxxxxxxxx 
> <mailto:M.Calleja@xxxxxxxxxxxxxxx>> wrote:
>
>     Hi Nkwebi,
>
>     I don't know if you still need this, but you can get my copy of
>     mp2script at:
>
>     http://www.escience.cam.ac.uk/~mcal00/condor/mp2script.asc
>     <http://www.escience.cam.ac.uk/%7Emcal00/condor/mp2script.asc>
>
>     Copy and paste it, and rename it as mp2script. A couple of points
you
>     should bear in mind: I had to put a .mpd.conf file in the home
>     directory
>     of the user running condor (I use dedicated condor user accounts),
>     but I
>     also had to set the env var MPD_CONF_FILE in the script, otherwise
mpd
>     failed to find the file. I also load LD_LIBRARY_PATH with the
compiler
>     libs I used to build mpich2 (I used ifort/icc 9.1). This script
works
>     fine with the "cpi" example that gets built by mpich2 in
>     /path/to/mpich2/distro/examples.
>
>     Cheers,
>     Mark
>
>     Nkwebi Peace Motlogelwa wrote:
>     > Hi all... I need a working MPICH2 wrapper script for condor's
>     > parallel universe...I use condor-6.8.4, but it comes with
wrapper
>     > scripts for LAM and MPICH1 only.. I tried to modify the
>     > mpich1script, but not winning so far... anybody using condor
>     > and mpich2 and willing to share their wrapper scripts?...Pls
help..
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