Thank you very much for your suggestions. I'm already investigating the modal models.
Oliviero -----Message d'origine----- De : Christopher Brooks [mailto:cxh at eecs.berkeley.edu] Envoy? : jeudi 8 juillet 2010 17:29 ? : BARANA Oliviero 208302 Cc : kepler-users at kepler-project.org Objet : Re: [kepler-users] Blocks to be called just once with SDF Hi Oliviero, See also http://mercury.nceas.ucsb.edu/kepler/pipermail/kepler-dev/2010-April/017877.html which suggests using sources that extend LimitedFiringCount and other ways to stop. Edward's suggestion about using a modal model is the best solution though. _Christopher On 7/8/10 6:51 AM, Edward A. Lee wrote: > > You could use a Modal Model. > See: > > http://www.eecs.berkeley.edu/Pubs/TechRpts/2009/EECS-2009-151.html > > Edward > > > On 7/8/10 5:03 AM, BARANA Oliviero 208302 wrote: >> Dear all, >> >> I'm rather new in the use of Kepler and I'm not so expert about >> actors, directors and so on. >> >> I have the following problem. >> >> I have a workflow (with a feedback loop inside) which is being >> executed a certain number of times depending on the value of a certain >> variable. >> When this variable is higher than a predetermined value, the Stop >> block is called and the workflow ends. >> >> I would like to execute a few blocks during the initialization phase, >> just once, before the execution of my workflow, but I can't. The >> problem is that these initalizing blocks are called each cycle and >> not once and, since they are very demanding from a computing-time >> point of view (access to a database to load signals), the overall >> execution is slowed a lot. >> >> Is anyone aware of a method to have a few blocks called just once, >> keeping in mind that I am using the SDF director (I put 0 in the >> Iterations field since, as I said, the overall execution is stopped >> by the Stop block)? >> >> Many thanks in advance for your help >> >> Oliviero >> >> >> >> _______________________________________________ >> Kepler-users mailing list >> Kepler-users at kepler-project.org >> http://mercury.nceas.ucsb.edu/kepler/mailman/listinfo/kepler-users > > > > _______________________________________________ > Kepler-users mailing list > Kepler-users at kepler-project.org > http://mercury.nceas.ucsb.edu/kepler/mailman/listinfo/kepler-users -- Christopher Brooks, PMP University of California CHESS Executive Director US Mail: 337 Cory Hall Programmer/Analyst CHESS/Ptolemy/Trust Berkeley, CA 94720-1774 ph: 510.643.9841 fax:510.642.2718 (Office: 545Q Cory) home: (F-Tu) 707.665.0131 cell: 707.332.0670
