[kepler-dev] Kepler can only be invoked once

[Norbert Podhorszki]

Hi Lisong,

If you want to execute workflows from command-line, just create a script 
similar to kepler.sh and replace the java command for the following:

java -Xmx512m -Xss5m -DKEPLER="$KEPLER" 
-Djava.endorsed.dirs=$KEPLER/lib/jar/apache 
-Djava.library.path=$KEPLER/lib ptolemy.actor.gui.MoMLSimpleApplication $*

(note, KEPLER should be defined for the above script)

This can be executed several times at once, giving the workflow name as 
parameter.

Best regards
Norbert

      Norbert Podhorszki
    ------------------------------------
      University of California, Davis
      Department of Computer Science
      1 Shields Ave, 2236 Kemper Hall
      Davis, CA 95616
      (530) 752-5076
      pnorbert at cs.ucdavis.edu
      ----------------------------------

On Thu, 10 May 2007, Sun, Lisong wrote:

> Dear Kepler developers,
>
> Our group is developing a process integration framework which use Kepler to
> build and run workflows to do scientific computations. We built an organizer
> application that will manage the workflow files on the WebDAV server,
> input/output for each run and other provenance information.
>
> So far we are very impressed by the capabilities of Kepler. Meanwhile we do
> run into a few problems that we are not sure how to deal with.
>
> One of the problem is that we found Kepler can only be invoked once. And if
> there is a running Kepler, the second invoke command will fail. This does
> get in our way of using the Kepler since we manage all the workflow files
> using our organizer and need to be able to invoke multiple workflows through
> the organizer. We do noticed that it is possible to open multiple workflows
> windows through the menu options. Wonder if there is any special reason why
> it can't run with second invoke command.
>
> Another goal we want to achieve is to deal with long running workflows. I
> wonder if there is anyway we can use the Kepler as an execution engine and
> run workflows without open the GUI window.
>
> Thanks for your help.
>
> Best regards,
>
> Lisong Sun
> Staff Scientist
> Pacific Northwest National Laboratory
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