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Subject: Re: [MTT devel] Analysis of hung jobs.
From: Ethan Mallove (ethan.mallove_at_[hidden])
Date: 2009-10-07 15:41:08


On Tue, Oct/06/2009 04:30:52PM, Ashley Pittman wrote:
> On Tue, 2009-10-06 at 11:25 -0400, Ethan Mallove wrote:
> > On Tue, Oct/06/2009 10:23:48AM, Ashley Pittman wrote:
> > >
> > > Further to the mail linked below, padb is able to perform diagnostics,
> > > including backtraces on hung jobs and integrates well into automated
> > > testing environments.
> >
> > Can padb get a backtrace from a non-debuggable MPI (e.g., not compiled
> > with -g)?
>
> It's gets what is available from the application, without -g it will
> give you function names only, with -g it will also give you file names
> and line numbers and optionally variables, their types and values.
>
> It can show the message queues regardless of the -g option.

I got the following error doing a simple test:

  $ padb --config-option rmgr=mpirun --full-report=12480
  Nested quantifiers in regex; marked by <-- HERE in m/\A # Start of str.
                     " # Quote
                     ((?:[^"\\]++ <-- HERE |\\.)*+) # Anyting which isn't \"
                     " # Close quote
                     ,? # An optional comma.
                     (.*) # Rest of line
                     \z # end.
                     / at padb line 5044.

  $ perl --version
  This is perl, v5.8.4 built for sun4-solaris-64int

-Ethan

>
> Ashley.
>
> --
>
> Ashley Pittman, Bath, UK.
>
> Padb - A parallel job inspection tool for cluster computing
> http://padb.pittman.org.uk
>
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