[kepler-dev] Re: sampling

Shawn Bowers bowers at sdsc.edu
Wed May 26 11:23:39 PDT 2004


Chad Berkley wrote:
> Hi Deana,
> 
> See my comments below:
> 

> I've been tossing this idea of stopping the execution to ask for input 
> around in my head since the SEV meeting.  I haven't really come up with 
> a good solution other than writing an extension to the pause actor that 
> allows an input dialog to be popped up.  How to configure that dialog or 
> get the actual information you need is a tough question since I'd like 
> to make it generic enough to work with workflows other than GARP.  
> Edward or Christopher, do you have any examples of workflows that stop 
> execution and ask users for input then continue executing based on that 
> input?  I haven't seen any.  Does anyone have any good ideas on how this 
> could be done generically?
> 
> The flow as I see it is:
> 1) execution is paused
> 2) a dialog that is partially preconfigured at design-time and fully 
> configured at run-time is presented to the user
> 3) the user makes a choice, altering the exec-time parameters of the 
> rest of the workflow

Isn't this what the "browser" actor does -- the one that Kai, Efrat, and 
Ilkay worked on?


shawn


> 
> Note that in 2, the run-time configuration may include such things as 
> dialog widget configuration with run-time produced data (e.g. populating 
> a list box with a run-time data stream).  The design-time configuration 
> would include issues such as choosing the input/output ports and 
> configuring what the logic of the dialog is (this may be tricky).
> 
> I think this is probably a necessary bit of functionality since I have 
> seen a couple different eco workflows prototypes that want to do this.
> 
> comments?
> 
> chad
> 
>>
>> Deana
>>
>>
>> Chad Berkley wrote:
>>
>>> Hi Deana,
>>>
>>> I was going to start working on the sampling actor for garp.  could you
>>> refresh my memory as to how to that should work.  I have the inputs as
>>> a species and a scaling metric and the outputs as the intrinsic and
>>> extrinsic data.  aren't there different sampling techniques?  I'd like
>>> to build one generic sampling actor that can use one of a number of
>>> different techniques.  I'm on IRC now if you want to chat about this in
>>> real-time.
>>>
>>> thanks,
>>> chad
> 
> 
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