[kepler-dev] Problems with PortParameters in RunCompositeActor

[Dan Higgins]

Hi all,

    I have run into some problems trying to use PortParameters inside a 
RunComposite actor. There are 2 attached Ptolemy workflows that 
illustrate the problem.
    Each workflow creates a simple sequence of 2 tokens. The test1.xml 
workflow sends these tokens to a Composite actor that just prints the 
token values using a Display actor. The composite uses a PortParameter. 
This workflow runs as expected, displaying the 2 token values.

    The same actors are used in the test.xml example except that the 
Composite is replaced by a RunCompositeActor HOC actor. In this case, 
however, only the last of the two tokens gets printed! Why is only the 
last token displayed? I thought the RunComposite should execute its 
contained workflow for each set of inputs passed to the contained 
PortParameters. (At least that is what I hoped since I wanted to be able 
to run a workflow multiple times for some set of varied input 
parameters.) It looks like the workflow inside the RunComposite actor is 
getting executed only once; i.e. the PortParameter may be set twice 
before the internal workflow is executed.

    Any thoughts on what is going on? Am I misunderstanding what should 
be happening?

Dan Higgins
NCEAS
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