On Nov 8, 2005, at 10:53 AM, Prakash Velayutham wrote:
> I am currently working on getting some support for dynamic scheduling
> in
> Torque. This means not just asking for a fixed number of resources
> during submission of a job, but later requesting to add more resources
> to the job or giving up some when not needed. I did bring it up on this
> list several months back. Currently lamgrow errors out when called from
> inside of a PBS setting due to support not being available from
> PBS/Torque. How about looking at this feature of lamgrow from TM
> interface in LAM as it might be possible to include support in Torque?
Are you saying that the Torque guys are going to extend the TM
interface to support this kind of functionality?
> Could someone please let me know what is the best way to get this
> support in LAM's sources?
To be honest, we'd probably be much more interested in integrating this
into Open MPI rather than LAM. LAM is essentially in a maintenance
mode; we're not really adding new features.
In some ways, it would be a bit easier to add this to Open MPI because
-- at least as of yet -- Open MPI does not have persistent daemons like
LAM does. However, Open MPI's runtime is much more flexible and
adaptable than LAM's, and is therefore a bit more complicated. So it
would probably take some work.
But if the Torque guys are going to extend the TM interface, we would
very much like to be involved in those conversations. We have a lot of
gripes about the TM interface and would like to have them fixed. :-)
--
{+} Jeff Squyres
{+} The Open MPI Project
{+} http://www.open-mpi.org/
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