[mpich-discuss] Hydra issues

[Pavan Balaji]

> Is there a downside to using:
> 
> setbuf (stdout, NULL);
> setbuf (stderr, NULL);

This needs to be set in the application -- Hydra is not getting the 
output, so it's not a buffering problem in Hydra.

But maybe I can set this inside the forked process before the 
application process is being execvp'ed. Hopefully, the application 
process will inherit it. Let me try.

> Also, why does using persistent proxies allow immediate output?

Hmm.. In my experiments, the output gets buffered with persistent 
proxies as well. Do you have a simple test program?

  -- Pavan

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