[GRASS-dev] Modules for GPU-based upgrade?

[Glynn Clements]

Seth Price wrote:

> I'm a student interested in a Summer of Code project to improve some  
> modules with GPU-based code. In theory, this could result in a 50x  
> speedup for embarrassingly parallel operations (ie. raster).

Whereas in practice, I/O will be the bottleneck.

> There is  
> a list of some possible modules for upgrade here:
> http://grass.osgeo.org/wiki/GPU
> 
> What would the GRASS community think of also including these modules  
> as options for improvement? Do they need a speedup? Am I missing  
> anything?
> 
> - r.resamp.interp (spline & Lanczos would be added)
> - r.slop.aspect
> - r.texture
> - i.sunhours
> - i.vi

r.resamp.stats, r.resamp.filter and r.series should also be readily
parallelisable, but again I/O is likely to be the bottleneck. r.series
has the advantage that the I/O is also parallelisable.

-- 
Glynn Clements <glynn at gclements.plus.com>