[GRASS-dev] GRASS and GPGPU

[Helena Mitasova]

Another popular task that has been implemented using GPU is  
insolation, visibility and similar class of tasks,
so r.sun, r.los would be another candidate modules that could use  
faster implementation.

Helena


On Mar 1, 2008, at 4:38 AM, Benjamin Ducke wrote:

> Yes, that is an excellent thought. I was considering this  
> possibility for speeding up common interpolation, image  
> transformation and
> resampling, as well.
>
> Kriging in realtime, anyone? ;)
>
> Of course, this would have to be implemented in a GPU-specific  
> library.
>
> NVidia has the CUDA SDK, which is not open source at the moment, but
> the pressure is on:
>
> http://forums.nvidia.com/lofiversion/index.php?t28458.html
>
> ATI already seems to have their stuff (CTM) opened up.
>
> Maybe a proof-of-concept GPGPU module would make a nice little SoC
> project?
>
> Benjamin
>
> Dylan Beaudette wrote:
>> Has anyone considered the possibility of doing stream-based  
>> calculations on the GPU [1] for raster operations on large  
>> datasets ? 1. http://en.wikipedia.org/wiki/GPGPU
>> It appears that this method works best on highly vectorized  
>> instructions, often in 2 "dimensions"-- appropriate for matrix/ 
>> grid computations.
>> Just a thought.
>> Dylan
>
> -- 
> Benjamin Ducke, M.A.
> Archäoinformatik
> (Archaeoinformation Science)
> Institut für Ur- und Frühgeschichte
> (Inst. of Prehistoric and Historic Archaeology)
> Christian-Albrechts-Universität zu Kiel
> Johanna-Mestorf-Straße 2-6
> D 24098 Kiel
> Germany
>
> Tel.: ++49 (0)431 880-3378 / -3379
> Fax : ++49 (0)431 880-7300
> www.uni-kiel.de/ufg
>
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