[kepler-dev] Nondeterministic merge in PN domain
Ilkay Altintas
altintas at sdsc.edu
Thu Jun 22 16:24:29 PDT 2006
Hi Christopher,
The workflows don't use the NondeterministicMerge actor but implement
nondeterministic merge in the workflow.
Until PTII 5.x, the PN director allowed this, but I'm trying to
figure out why the workflow was implemented that way, and the
workflow developer (Xiaowen--she left the project) insisted on
keeping the old director. It was to avoid a race condition. I'll try
to port the workflow to the current PTII version if I understand what
the problem with using the new version of the PNDirector is.
Thanks,
-ilkay
On Jun 22, 2006, at 3:23 PM, Christopher Brooks wrote:
> Hi Ilkay,
>
> I'm not sure. Edward checked in a working nondeterministic merge
> on 03 Oct 2004.
>
> I'm a little confused though, because the CVS head of Ptolemy has a
> working nondeterministic merge actor (pn.kernel.NondeterministicMerge)
> and a PN demo: pn/demo/NondeterministicMerge/NondeterministicMerge.xml
>
> _Christopher
> --------
>
> Hi,
>
> Does anyone know what exactly have changed between the version
> of the
> PNDirector that accepts nondeterministic merge and the current
> one?
>
> There was an email thread on this but we couldn't find it.
>
> Nandita and I are trying to port older workflows that use
> nondeterministic merge under PN domain to the newer version of PN.
>
> Thanks!
> -ilkay
>
>
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--
Ilkay ALTINTAS
Assistant Director, National Laboratory for Advanced Data Research
(NLADR)
Manager, Scientific Workflow Automation Technologies (SWAT) Lab
San Diego Supercomputer Center(SDSC), UCSD
9500 Gilman Drive, MC: 0505 La Jolla, CA 92093-0505
phone: (858) 822-5453 fax: (858) 822-3693
web: http://users.sdsc.edu/~altintas
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