The OpenCL startup time is problematic because the eSDK serial loader is slow. This is being addressed in COPRTHR 2 (https://arxiv.org/abs/1604.04207). It's going to get much better soon.
Alternatively, you need to you something called "persistent threads" if your clforka() call is inside a loop. Basically, move the loop inside the kernel device code instead of the host code. I have not looked at your code.
Very slow OpenCL execution time (with example code).
by CyberHiPriest » Tue Apr 26, 2016 2:47 pm
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raymarch.tar.gz- raymarching example code
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CyberHiPriest - Posts: 4
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