PS: There is a good discussion of double precision in the first few
minutes of this podcast:
http://www.macresearch.org/opencl_episode3
Which also references this PDF:
http://www.nvidia.com/content/nvision2008/tech_presentations/NVIDIA_Research_Summit/NVISION08-Mixed_Precision_Methods_on_GPUs.pdf
~Seth
On Apr 2, 2010, at 2:03 PM, Dylan Beaudette wrote:
On Friday 02 April 2010, 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). 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
These also work out well for my thesis work (land cover
classification), which gives me extra motivation. ;)
~Seth
Hi,
I think that it sounds like a great idea. Have any ideas on how to
keep double
precision when working with the GPU?
Cheers,
Dylan
--
Dylan Beaudette
Soil Resource Laboratory
http://casoilresource.lawr.ucdavis.edu/
University of California at Davis
530.754.7341
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