On Thu, 2010-09-02 at 20:37 -0400, Alan wrote: > Hi all, > > It sounds like CUDA is not ideal for GIMP, but individuals on this list > might be personally interested in it (it is free, just not OSS, might be > good for plugin devel). I pushed my code into a git repo: > > http://github.com/etotheipi/CUDA_Image_Convolution > > Keep in mind that the state of the code is very immature in structure, > but the algorithms are solid and work very fast if you have a > CUDA-enabled graphics card. The readme has a lot of useful information > > Some timings: > > Basic convolution, erosion or dilation (on NVIDIA GTX 460): > 4096x4096 image with 15x15 PSF/SE: 125 ms compute time ( > 8 Hz) > 4096x4096 image with 3x3 PSF/SE: 20 ms compute time ( > 50 Hz) > 2048x2048 image with 5x5 PSF/SE: 7.5 ms compute time ( > 130 Hz) > 512x512 image with 3x3 PSF/SE: 0.36 ms compute time > (2750 Hz) > > These timings are without memory transfers, which is somewhere between 1 > GB/s and 3 GB/s host<-->device. Keep in mind that the code operates > only on floats (which I need for my application), but it could be > significantly faster if modified to work on 8-bit integers and batch > memory operations in 128-bit chunks. Maybe one day... > > Let me know if you have any interest developing or simply using this code. You might want to resend this offer to the gegl-developer list. It might be interesting to integrate your work with the gsoc2009-gpu branch. Sven _______________________________________________ Gimp-developer mailing list Gimp-developer@xxxxxxxxxxxxxxxxxxxxxx https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-developer
