Re: [ptp-dev] Prepending MPI Launch Command

[Wyatt Spear <wspear@xxxxxxxxxxxxxx>]

For my purposes I wouldn't need anything on the launch manager UI side.  I just need programmatic access, via the parallel-launch object, launch configuration object or something similarly available to the launch configuration delegate.  The easiest solution from my side would be something like an api call that lets me give a string to prepend to the command that's going to be issued to the system.  A more general solution would be one call to get the original command string and another call to set it to the version I've modified.

The most ideal solution would be for those methods to be part of the API that applies to all the resource managers.  If I need to cover this case differently for each implementation that could be problematic.

Regards,

Wyatt

On Wed, Nov 25, 2009 at 3:28 PM, Albert L. Rossi <arossi@xxxxxxxxxxxxx> wrote:

Wyatt,

What exactly were you thinking of in terms of "support"?  A full UI widget, or just the ability to add this to the command-line/executable that is launched? Certainly the second option will be available in the PBS manager I'm working on (and this would depend on the user knowing which mpirun incantations to provide).  Fuller MPI UI support could also eventually be included, but it would be good to have some more specific requirements as to what features to support first.

Al

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"History does not repeat itself, but often it rhymes." (attr. Mark Twain)

----- Wyatt Spear <wspear@xxxxxxxxxxxxxx> wrote:
> Greetings,
>
> There are a few parallel performance tools which need to be composed with
> the mpirun (or equivalent) command.  On the command line this might look
> like:
> performance_tool mpirun -np 4 mpi_app
>
> Is there any way that this could be supported with the PTP launch system?  I
> am not really familiar with the resource manager API but I am guessing that
> this would have to be done for each resource manager implementation.  I'll
> start looking through the code myself pretty soon but if anyone could point
> me in the right direction I would really appreciate it.  Similarly, if this
> is a non-starter for some reason it'd be good to know before I start.
>
> Thanks,
> Wyatt Spear

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