[mpich-discuss] execution halt when using 4 or more processors

[Pavan Balaji]

On 07/18/2010 02:48 AM, dxingya wrote:
> I got a problem when running mpich on a linux server. I can run 
> successfully on two or three processors. But when I run it using 4 or 
> more processors, the parrallel program can be executed and after a while 
> the program seems to be no longer excuted. However, there is no error 
> message, and the program seems to be in a status of waiting. I think it 
> maybe the problem of message deliver. Does any body know why?

It's hard to tell what's going on from the above description. Which 
version of MPICH2 are you using? Are you able to run any simple tests?

  -- Pavan

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