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From: Jeff Squyres (jsquyres_at_[hidden])
Date: 2007-08-06 15:51:30


On Aug 6, 2007, at 11:49 AM, Ralph H Castain wrote:

> 1. if everything is being done on localhost, I do not see any of
> the IO from
> the child process. Mpirun executes and completes cleanly, however.
> Because,
> the spawn'd child terminates so quickly, I haven't been able to
> positively
> confirm it is actually running - though I have some indication that
> it is.

This is probably my fault somehow; I can look into this but not
immediately. I'm guessing this is related to the IOF fix that I put
in last week sometime. If you can deal without io from the
COMM_SPAWN children for a little while, I can look at it in a few
days...

> 2. if running on multiple hosts, I see the output from the child
> processes,
> but mpirun "hangs" in MPI_Comm_disconnect. A ctrl-C is able to kill
> the
> entire job.

I can't comment on this one...

> Any ideas on what might have happened? This was all working not
> that long
> ago...can't swear to an r-level at the moment, but am hoping
> someone has an
> idea before I start having to blindly work backwards to find out
> what broke
> it.
>
> Thanks
> Ralph
>
>
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-- 
Jeff Squyres
Cisco Systems