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Subject: Re: [MTT devel] [MTT svn] GIT: MTT branch master updated. 016088f2a0831b32ab5fd6f60f4cabe67e92e594
From: Mike Dubman (miked_at_[hidden])
Date: 2014-06-23 09:11:55

it seems that mpirun got no signal (no evidence in the log). mtt was
spinning and mpirun was a only process who left on the node.
It was unclear why mtt did not kill mpirun.
will try to extract perl stacktrace from mtt on tomorrow`s nightly run.

On Mon, Jun 23, 2014 at 2:59 PM, Jeff Squyres (jsquyres) <jsquyres_at_[hidden]
> wrote:

> On Jun 23, 2014, at 7:47 AM, Mike Dubman <miked_at_[hidden]> wrote:
> > after patch, it killed child processes but kept mpirun ... itself.
> What does that mean -- are you saying that mpirun is still running? Was
> mpirun sent a signal at all? What kind of messages are being displayed?
> ...etc.
> The commits fix important bugs for me and others. Clearly, there's still
> something not right. And of course I'm willing to track it down. But I
> can't help you if you just say "it doesn't work."
> > before that patch - all processes were killed (and you are right,
> "mpirun died right at the end of the timeout" was reported)
> ...which led to many months of misleading ORTE debugging, BTW. :-\
> That's why this commit was introduced into MTT -- in the quest of finally
> fixing both the mysterious ORTE hangs and the erroneous timeouts/"mpirun
> died right at the end" messages.
> > but at least it left the cluster in the clean state w/o leftovers.
> > now many "orphan" launchers are alive from previous invocations.
> Does "launchers" = mpirun?
> --
> Jeff Squyres
> jsquyres_at_[hidden]
> For corporate legal information go to:
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