[mpich-discuss] Hydra binding questions

[Pavan Balaji]

On 08/04/2011 10:56 PM, Jain, Rohit wrote:
> Rohit: I agree it may not have to do with mpd vs hydra. I am
> comparing same application with 2 different versions of MPICH. With
> using same binding methods, I wouldn't expect slowdown. There is 20%
> increase in runtime of our application with MPICH2-1.4, which is kind
> of surprising, as i was expecting similar or better runtime with
> newer MPICH.

It's hard to tell what's wrong here without knowing more about the 
application. Do you have a benchmark where the problem is demonstrable?

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