[kepler-dev] GARP actor issues

[Timothy McPhillips]

All,

Is anyone else using the GARP actors, or in a position to help debug  
the problem with the GARPPresampleLayers actor described below?  I  
have reproduced the problem at the trunk, and stepped through the Java  
portion of the code in a debugger, but it appears that the issue may  
be in the C++ code the actor employs via JNI.  Is anyone already set  
up to build this code and its dependencies on our various supported  
platforms?

Thanks very much!

Tim

On Jul 27, 2009, at 11:24 AM, Timothy McPhillips wrote:

> 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.
>>>> =======================================================