[kepler-users] kepler interface to JXTA or P2PS

[Matt Jones]

Hi Maurice,

We have been experimenting with JXTA and Jini in Kepler and Ptolemy, but 
at this point the work is largely in the experimental phase.  Daniel 
Cuadrado committed some code that allows for an DistributedSDF director, 
which can be used to distribute the computations on a set of Jini nodes. 
  This isn't fully mature because there is not yet enough control over 
what parts of the model are distributed and how the Jini nodes are set 
up and configured with Kepler.  But it does work.  You can compile and 
run the jini prototype in Kepler using "ant run-jinidev", although it 
would probably take some setup beforehand.

In addition, I did some work on using JXTA to set up peer-to-peer grids 
-- it is in CVS but not tied in to the running application.  The JXTA 
work is described here:
    http://kepler-project.org/Wiki.jsp?page=PeerToPeerKepler

We haven't been able to work on this stuff lately due to more pressing 
issues in Kepler.  But I do plan to come back to it as soon as possible. 
  If you'd like to help out in this regard it would be welcomed.  I 
think we will probably drop the JXTA framework as it seems very hard to 
program to and somewhat fragile.  We'll have to evaluate other 
frameworks (Jini, P2PS, others) to see if they would be better than JXTA.

Cheers,
Matt


Maurice Yarrow wrote:
> Hello Kepler users
> 
> Is there presently any way to interface 
> Kepler to either JXTA or P2PS ?	
> 
> I.e.: I would like to write autonymous
> cli-servs-peers (have properties of both
> client and server) that can communicate 
> with the director of a running Kepler instance.
> 
> My goal is not well served by using Web
> Services for a variety of reasons, so 
> the above model will allow more flexibility
> for the type of real-time conduct I require.
> 
> (Triana supports this but Kepler would be a 
> preferred platform for a variety of reasons.)
> 
> Also apropos of this issue, what is the status
> of the line item in Alpha 8 (Dec 9 release 
> indicated): "initial kepler grid support for 
> distributed directory/p2p" ?
> 
> 
> Maurice Yarrow
> 
> 
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-- 
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Matt Jones                                   Ph: 907-789-0496
jones at nceas.ucsb.edu                    SIP #: 1-747-626-7082
National Center for Ecological Analysis and Synthesis (NCEAS)
UC Santa Barbara     http://www.nceas.ucsb.edu/ecoinformatics
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