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14.9 and higher OpenCL performance

Question asked by wolf0 on Nov 24, 2014
Latest reply on Dec 31, 2014 by realhet

I've tried dozens of tweaks to my Groestl implementation, and it refuses to get anywhere near as fast as pre-14.9 code. The pre-14.9 code is just butchered on 14.9 - a rewrite makes it better, but the performance is still dismal. Are the changes in 14.9+ permanent, meaning I have to not upgrade for the forseeable future?

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