Okay I was searching for some additional stats for poclbm. What I found was the following:
http://forum.bitcoin.org/index.php?topic=22965.0
I'm quoting here:
Code:
You can go to phatk's kernel.cl file (don't worry, it just sits there in the open, no need to recompile anything), find this line
#define Ma(x, y, z) amd_bytealign((y), (x | z), (z & x))
and change it to this line
#define Ma(x, y, z) amd_bytealign( (z^x), (y), (x) )
Once you've done it, restart the miner.
Using phoenix you find both kernels in the kernels folder (I know, kind of obvious, isn't it?! ). This modification works for both kernels but only if you're using BFI_INT.
My results: Cayman cores gain ~14MHash consistently. 5xxx cores should gain even more.
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