[kepler-dev] GARP actor issues

[R.P.Mciver at cs.cardiff.ac.uk]

Hi Tim,

Thanks for the response. Hopefully the following should be enough  
information to recreate the situation:

The OS is Windows XP (SP3 if we're being picky!)

Kepler is installed at C:\Program Files\Kepler-1.0.0 (what I believe  
to be the default for the installer)

Workflow created consists of simply an SDF Director set to 1 iteration  
and the actor causing the issue, GARPPresampleLayers, with the  
following Parameters:

* layerSetFilenameParameter: "C:\Program  
Files\Kepler-1.0.0\lib\testdata\garp\IPCC.dxl"

(this is the one that seems to cause the error, functions fine when  
set to this file, or to one of the similar files in the same location,  
or if set to the same file renamed in that location. Seem to fail if  
set to anything in another location - even if it's the same file. Also  
fails if set to the same file in a subdirectory of this location)

* dataPointFileNameParameter: "C:\Program  
Files\Kepler-1.0.0\lib\testdata\garp\digir_data_mephitis"

* cellSetFileNameParameter: C:\Program Files\Kepler-1.0.0\CellSet.xml


These input data files were just taken from examining the setup of the  
same actor in the "$Kepler\lib\demos\ENM" directory. Also checked if  
the problem was limited to the actors paramater, but the same result  
occurs if trying to provide the input file using the corresponding  
input port as well.

Hope this is enough information. Thanks again for the help working  
this one out!

Russell


Quoting Timothy McPhillips <tmcphillips at mac.com>:

> Hi Russell,
>
> I've never used the GARP actors or workflows, but I'd be happy to  
> try to reproduce the problem you're seeing and help track down the  
> problem (assuming no one else knows the answer to your question  
> already).
>
> Can you send me enough information to reproduce your environment  
> (OS, location of Kepler installation, etc), along with the input  
> data file?
>
> Thanks!
>
> Tim
>
> On Jul 26, 2009, at 10:56 AM, R.P.Mciver at cs.cardiff.ac.uk wrote:
>
>> Hi all,
>>
>> Hopefully someone can help me out here, I've playing about with the  
>> kepler UI (mainly just looking at how things work etc.) and thought  
>> I'd try using my slightly modified GUI to compose some workflows  
>> utilisng the GARP set of actors, similar to the niche modelling  
>> examples that come with kepler.
>>
>> Unfortunately I've been getting some errors (well, stack overflows  
>> to be precise). After spending a long time thinking it was as a  
>> result of something I'd changed in the UI, I went back and tried  
>> the same on a clean install of the 1.0.0 release, only to find  
>> there were still some problems.
>>
>> It seems that whenever I provide the GARPPresampleLayers actor with  
>> a "layerset" input file which is located anywhere other than the  
>> "$Kepler/lib/testdata/garp" folder then kepler crashes out with a  
>> stack overflow.
>>
>> The only difference in the error between using "vanilla" kepler  
>> 1.0.0 and my modified version is that when attempting to execute  
>> the actor in my code I get the stack overflow regardless of where  
>> the layerset file is located.
>>
>> Any ideas what is going on here - is the location for where the  
>> file has to be defined somewhere? I've tried just executing the  
>> GARPPresampleLayers actor in isolation so I'm fairly certain it's  
>> not a problem with some other part of a workflow.
>>
>> Any help would be appreciated!
>>
>> Cheers,
>>
>> Russell
>>
>> =======================================================
>> Russell McIver
>> Research Student
>> Room C/2.14
>> Cardiff School of Computer Science, Cardiff University,
>> 5 The Parade, Roath, Cardiff, CF24 3AA, UK.
>> =======================================================
>>
>>
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>
>


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