For a much simpler approach you could also use these two environment variables, 
this is on my current system which is 1.5 based, YMMV of course.

OMPI_COMM_WORLD_LOCAL_RANK
OMPI_COMM_WORLD_LOCAL_SIZE

Actually orte seems to set both OMPI_COMM_WORLD_LOCAL_RANK and 
OMPI_COMM_WORLD_NODE_RANK, I can't see any difference between the two.

Ashley.

On 10 Dec 2010, at 18:25, Ralph Castain wrote:
> 
> So if you wanted to get your own local rank, you would call:
> 
> my_local_rank = orte_ess.proc_get_local_rank(ORTE_PROC_MY_NAME);

-- 

Ashley Pittman, Bath, UK.

Padb - A parallel job inspection tool for cluster computing
http://padb.pittman.org.uk


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