[torqueusers] job runs only in 1 node

Ronny T. Lampert telecaadmin at uni.de
Sat Mar 11 04:43:46 MST 2006


>> How to make torque add jobs on all asked nodes? thx

> I think you are confusing between a parallel job and multiple serial 
> jobs executing in several nodes simultaneously. If you want to execute 
> the same serial job on several nodes simultaneously, but through PBS, 
> then mpiexec is a good way to go (as you have already figured out). If 
> you do not necessarily need PBS / Torque, then look at c3 
> (http://www.csm.ornl.gov/torc/C3/) from ORNL.

To slightly rephrase:
Torque is only managing and assigning resources (nodes and/or cpus and/or 
memory).
You are responsible to get you application(s) running on the nodes you get.

Usually this is done via mpiexec or similar scripts running on the first 
node of your assigned one spawning children on the other nodes.


Cheers,
Ronny


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