[kepler-users] wrapping up, never ending workflow!

[Edward A. Lee]

This is not a situation where it is refusing to terminate because of
unconsumed tokens. Typically, this is called by a deadlock. If you
are running on a Windows machine from the command line, you can get
a stack trace of all the executing threads by typing control-break.
If you forward that to this list, we can (maybe) identify
the culprit...

Edward


Josep Maria Campanera Alsina wrote:
> Dear all,
> I get a "wrapping up" message from an execution of a workflow that
> coordinates the submission of computational chemistry jobs in a
> cluster queue system. The workflow is based on the
> TestJobFullCycle-SGE.xml provided by kepler itself, with some
> variations. Find attached the mentioned workflows.
> 
> My workflow is a composite one. I'd like to execute sequentially
> several tasks: 1st) submit jobs to a cluster, 2nd) collect all outputs
> and save them locally and then 3rd) convert output files to other
> formats. Since some tasks are designed for PN director and some for
> SDF director the overall director is a PN director.
> 
> However, the task under the PN director (in charge of job submission)
> never finishes tough the task is already completed and early shows the
> message "wrapping up", so the execution never finish step 1st and 2nd
> so the 3rd is never executed. Why PN director doesn't finish the task?
> How Can I stop the director and allow the workflow to continue?
> 
> I think the problem is related to the PN director that as said in the
> user manual "may refuse to automatically terminate because tokens are
> always generated and available to downstream actors"! Here it comments
> that "One can correct the problem by changing the firingCountLimit
> parameter of the Constant actor to some finite value". If done that
> but it continues with the same problem.
> 
> How can I overcome this? all comment will be appreciated!
> 
> Thanks in advance,
> 
> Josep Maria,
> 
> ---------------------------------------------
> Josep Maria Campanera Alsina
> Professor Lector
> Departament de Fisicoquímica
> Facultat de Farmàcia
> Universitat de Barcelona
> Avgda Joan XXIII, s/n
> 08028 Barcelona · Catalonia · Spain
> Tel: +34 93 4035985
> Fax: +34 93 4035987
> campanera at ub.edu
> --------------------------------------------
> 
> 
> ------------------------------------------------------------------------
> 
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