[mpich-discuss] Hydra issues

Pavan Balaji balaji at mcs.anl.gov
Tue Aug 25 20:48:19 CDT 2009


Scott,

Are you using Hydra from mpich2-1.1.1p1? Are other programs running fine?

Darius just noticed the problem with the persistent proxies dying on 
mpiexec aborts as well. I'll fix it soon-ish.

  -- Pavan

On 08/25/2009 02:37 PM, Scott Atchley wrote:
> Hi all,
> 
> I tried using Hydra to launch 16 processes (2 hosts, 8 ppn). All I see is:
> 
> $ /usr/bin/time -p mpiexec.hydra -binding none -f hosts -n 16 
> -print-rank-map $PWD/IMB-MPI1.mpich2-mx -npmin 16
> Warning: Permanently added the RSA host key for IP address '10.125.1.53' 
> to the list of known hosts.
> Warning: Permanently added the RSA host key for IP address '10.125.1.76' 
> to the list of known hosts.
> 
> 
> If I use the persistent proxies _or_ if I call IMB with just pingpong 
> (or any other test alone), however, it works fine.
> 
> Separately, if I kill a mpiexec.hydra running with persistent proxies, 
> the proxies also die. Is this expected?
> 
> Scott

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


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