[MPICH2-dev] Fw: PMI Function

[William Gropp]

I believe that the purpose of this routine is to let each process  
discover the ranks (relative to MPI_COMM_WORLD) that are on the same  
node as the calling process.  Thus, on the node with comm world ranks  
0-7, Get_clique_ranks should return 0-7.  On the node with comm world  
ranks 8-11, Get_clique_ranks should return 8-11.

Bill

On Mar 27, 2007, at 12:00 PM, Chuck.Clouston at Bull.com wrote:

>
> I am working on adding this to SLURM and Moe Jette suggested that I  
> send this question to you for an answer.
>
> Thanks,
> Chuck Clouston
> BULL HN
> ----- Forwarded by Chuck Clouston/US/BULL on 03/27/2007 09:56 AM -----
> Chuck Clouston/US/BULL
> 03/26/2007 01:58 PM
>
> To
> slurm-dev at lists.llnl.gov
> cc
> Subject
> PMI Function
>
>
>
>
> I have a guestion on the PMI function PMI_Get_clique_rank. I have  
> some confusion over what should be returned by this function.
>
> When I do an srun on two nodes of 4 and 8 processors of :  srun - 
> n12 -N2 <cat string for job> I see the following;
>
> PMI-Get_size equal 12.
> PMI_Get_clique_size equal to  4 or 8 depending on the node.
> and PMI_Get_rank equal from 0 thru 7 or 8 thru 11 depending on the  
> node.
>
>
> What should I see for PMI_Get_clique_rank (0 thru 7 and 8 thru 11)  
> or (0 thru 7 and 0 thru 3)?
>
> Thanks
>
> Chuck Clouston

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