[GRASS-dev] GRASS and GPGPU

[Benjamin Ducke]

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