Re: [Condor-users] Condor & MPICH2

["Hsieh Tsan Lung" <yuwanyi@xxxxxxxxxxxxxxxxxx>]

Dear All,

   These four files are used in my X86_64 cluster to run MPI jobs.
   I put them in libexec/

   To submit MPI jobs I issue: mpi_submit -np 4 /path/to/mpi_prog arg1 arg2

   There are some paths you need to fix to match your system.
   Hope this can help.

tsan
On Wed, 14 Feb 2007 17:13:21 -0600, Erik Paulson wrote
> On 2/14/07, Natarajan, Senthil <senthil@xxxxxxxx> wrote:
> >
> >
> >
> >
> > Thanks Eric.
> >
> >
> >
> > So once if the mp1script (MPICH2 launcher) is fixed to run MPICH2. In order to submit parallel jobs, do we need to use
> >
> > executable = mp1script
> >
> >
> >
> > something like this in the job submission file?
> 
> That's mostly correct, though it is likely that the MPICH2 launcher
> script would be named mp2script.
> 
> You'll also probably need to have something like
> arguments = my_mpich2_linked_executable arg1 arg2
> should_transfer_files = yes
> when_to_transfer_output = on_exit
> transfer_input_files = my_mpich2_linked_executable
> 
> Remember, the parallel universe in Condor just finds N machines, and
> then launches a program on all N of them at the same time. If those
> programs need to communicate, it's the job of the wrapper script to
> setup anything that is needed. Condor includes some tools to make it
> easier for the wrapper script to do that, and provides wrapper scripts
> for LAM and MPICH1, but that's it.
> 
> Just to be clear, as far as I know, no one at the UW is currently
> working on an MPICH2 wrapper script. Hopefully someone has one out
> there that they can share.
> 
> -Erik
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