Hi Mohana, How would you notify the user of the failure? By sending email?
How would an actor restart from the step that failed? Do you mean restarting a simulation from the global state just before the failure? In general, this is hard and not supported. Ptolemy II does have some new experimental backtracking code, but it does not checkpoint the entire simulation. In Ptolemy we call this lifecycle management. The Ptolemy II 5.0 release notes say: --start-- # Higher Order Components: ExecDemos (see also IterateOverArray). (http://ptolemy/ptolemyII/ptII5.0/ptII5.0.1/ptolemy/actor/lib/hoc/demo/IterateOverArray/IterateOverArray.htm or $PTII/ptolemy/actor/lib/hoc/demo/IterateOverArray/IterateOverArray.htm) The higher-order component capabilities of Ptolemy II continue to evolve. The ExecDemos model, when executed, starts a new Java virtual machine that then executes the RunDemos model, which runs all demos in a specified directory using full-screen mode. This illustrates how to use higher-order actors to control the lifecylcle of other Ptolemy II models. This example can be set up to automatically and repeatedly run demos unattended by following the instructions in the README.txt file. The new higher-order actors include: * ApplyFilterOverArray * ApplyFunction * ApplyFunctionOverSequence * IterateOverArray --end-- You could also look ptolemy/actor/lib/ThrowModelError.java, which throws an exception that can then be caught by a container. _Christopher Christopher Brooks (cxh at eecs berkeley edu) University of California Programmer/Analyst Chess/Ptolemy/Trust US Mail: 558 Cory Hall #1770 ph: 510.643.9841 fax:510.642.2739 Berkeley, CA 94720-1770 home: (F-Tu) 707.665.0131 (W-F) 510.655.5480 (office: 400A Cory) Dan writes: -------- Hi, The 'Listen to Director' menu item under the 'Tools' menu is sometimes useful for obtaining information about where a workflow fails. Currently there is no restart mode that I know of (although we have discussed the need for such a thing). Dan Mohana Ramaratnam wrote: > Hello, > > Is there a workflow monitor that already exists. What I mean by that is: > > I have designed a workflow and for some reason a step in that flow > fails. Is kepler/director capable of notifying that the workflow failed > and also is there a recovery mode where kepler/actor can restart from > the step which failed. > > Mohana > _______________________________________________ > Kepler-users mailing list > Kepler-users at ecoinformatics.org > http://mercury.nceas.ucsb.edu/ecoinformatics/mailman/listinfo/kepler-user s > -- ******************************************************************* Dan Higgins higgins at nceas.ucsb.edu http://www.nceas.ucsb.edu/ Ph: 805-893-5127 National Center for Ecological Analysis and Synthesis (NCEAS) Marine Scienc e Building - Room 3405 Santa Barbara, CA 93195 ******************************************************************* _______________________________________________ Kepler-users mailing list Kepler-users at ecoinformatics.org http://mercury.nceas.ucsb.edu/ecoinformatics/mailman/listinfo/kepler-users --------
