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Ask Slashdot: GPU of Choice For OpenCL On Linux?

Posted by timothy on from the discriminating-tastes dept.

Bram Stolk writes So, I am running GNU/Linux on a modern Haswell CPU, with an old Radeon HD5xxx from 2009. I'm pretty happy with the open source Gallium driver for 3D acceleration. But now I want to do some GPGPU development using OpenCL on this box, and the old GPU will no longer cut it. What do my fellow technophiles from Slashdot recommend as a replacement GPU? Go NVIDIA, go AMD, or just use the integrated Intel GPU instead? Bonus points for open sourced solutions. Performance not really important, but OpenCL driver maturity is.

1 of 110 comments (clear)

  1. Re:Future of GPU is Open Standards by Anonymous Coward · · Score: 2, Insightful

    I greatly prefer open standards as well. However, CUDA is considerably less painful to work in than OpenCL.

    I'm not sure how you came to this conclusion. I ported a debayering algorithm form CUDA to OpenCL and as far as the kernel code was concerned, the only thing I even had to change was the expressions which retrieve the local and group IDs. The housekeeping code required on the host side is totally different and slightly more complicated for OpenCL, but it's worth the tradeoff in order to be able to run your GPU code on AMD and Intel cards as well as NVidia.