[kepler-dev] GARP actor issues

[Timothy McPhillips]

Hi Russell,

Ok, I think I've reproduced your problem with the GARPPresampleLayers  
actor in Windows XP SP3, Vista SP1 (32-bit),  and MacOS 10.5.7.  In  
each case specifying a file for layersetFilenameParameter that is not  
in lib/testdata/garp causes Kepler to crash when the workflow  
containing the actor is run.  Specifying a file that does not exist at  
all gives the same error. Specifying files renamed within the lib/ 
testdata/garp directory seems to be fine, as you say.

On Ubuntu 9.0.4, things do not get this far.  It looks like the system  
cannot find a required shared library. (libexpat.so ?)

I'm going to see if I can reproduce this in my development  
environments so I can track down the problem.

Cheers,

Tim

On Jul 26, 2009, at 1:58 PM, R.P.Mciver at cs.cardiff.ac.uk wrote:

> 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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