[mpich-discuss] Getting a unique name for each MPI task

[Pavan Balaji]

On 04/23/2012 11:15 AM, Rayson Ho wrote:
> Are there plans to change the semantics of $PMI_RANK? I need a unique
> name for each task on each node (or better yet, globally) so that the
> unique name can be used for the output filename.

Depending on what PMI wire protocol you are using either PMI_RANK or 
PMI_ID might be set.  But both have the same semantics.

-- 
Pavan Balaji
http://www.mcs.anl.gov/~balaji