[SoC] Interested in GPU-based processing

[Seth Price]

That sounds good. I'll probably be pretty busy until the end of the  
semester (early May), though.

I should mention that I'll be developing on a Mac, and Apple's OpenCL  
should be relatively mature because they initially developed it.
~Seth


On Apr 1, 2010, at 12:46 PM, Wolf Bergenheim wrote:

> On Thu, Apr 1, 2010 at 17:59, Seth Price <seth at pricepages.org> wrote:
>> Thanks for the replies all! Looking at the wiki page, it looks like  
>> r.proj
>> and v.proj are already there. I'd also be interested in working on  
>> r.sun
>> (it's related to my thesis). However, I'm concerned that there  
>> isn't enough
>> time in a SoC project to translate many modules.
>>
>> How long will it take to alter the build process to detect an OpenCL
>> install?
>
> Seth,
>
> We can make a branch for you to work on, since you might be touching
> core parts. That way you can do it yourself and get to working on it,
> without having to wait. During the SoC we can then integrate parts
> back, when they are more complete.
>
> GRASS uses autoconf to detect things, so it is probably not that  
> hard to do it.
>
> +1 on OpenCL for me too since I don't have an nVidia card :P
>
> --Wolf
>
>
>> ~Seth
>>
>>
>> On Apr 1, 2010, at 12:27 AM, Markus Neteler wrote:
>>
>>> On Thu, Apr 1, 2010 at 12:45 AM, Seth Price <seth at pricepages.org>  
>>> wrote:
>>>>
>>>> Hey all, I'm interested in writing GPU-based code to improve the  
>>>> speed of
>>>> GRASS and GDAL as a GSoC project. It's such a basic operation  
>>>> that is
>>>> used
>>>> often, I think it'll be very useful for a broad audience. (I know  
>>>> it will
>>>> in
>>>> my own work.) I have a few questions for the community:
>>>> 1) Would both GRASS and GDAL be interested in this project? It's my
>>>> intent
>>>> to write the code for both projects, but I'd like to know if  
>>>> there's a
>>>> lack
>>>> of interest.
>>>
>>> On the contrary, we are very interested to get GPU support into  
>>> GRASS.
>>> Some discussions have already taken place:
>>>
>>> http://grass.osgeo.org/wiki/GPU
>>>
>>> See links therein for discussion about CUDA versus OpenCL. Please
>>> don't hesitate to bring this up on the grass-dev mailing list  
>>> since some
>>> experts are not reading here to my knowledge.
>>>
>>> ...
>>>
>>>> 4) What other GRASS modules are most in need of a speed boost? My  
>>>> current
>>>> plan is only to improve resampling and reprojecting operations  
>>>> over the
>>>> summer, but I'm curious what else I should look at.
>>>
>>> A selection could be also driven by popularity of a module, say,  
>>> some
>>> commands
>>> are way more often used than others. I started a list in above  
>>> mentioned
>>> Wiki
>>> page which I'll send to grass-dev for discussion.
>>>
>>> thanks for your interest,
>>> Markus
>>>
>>> --
>>> http://grass.osgeo.org
>>> http://gis.fem-environment.eu
>>
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>
>
>
> -- 
> <8  )---- Wolf Bergenheim ----(  3>