Topic: Poclbm/Phatk speedup! (Read 868 times)
I am using phatk2, which doesn't seem to have that line in it.
That's alright 
Also, have you tried this tweak? And has it improved your mhash rate at all?
Also, have you tried this tweak? And has it improved your mhash rate at all?
Oops, sorry about that, yeah I do feel a bit foolish now, guess that is why I never got into any kind of coding, lack of attention to detail =)
Anyway, I deleted my post, sorry again.
Anyway, I deleted my post, sorry again.
Quote
I just want to point out that the poster did not find this, rethaw did, and detailed it in his post here:
https://bitcointalksearch.org/topic/3-faster-mining-with-phoenixphatk-diablo-or-poclbm-for-everyone-23067
So if you are going to donate to anyone, I'd say let it go to the person that originally discovered this.
I might be wrong about this, but I'm pretty sure a lot of updated miner's have already incorporated this as well, but check for yourself, rethaw's instructions are pretty detailed.
I have been running with the modification myself for about a month, no different in stales but a slight bump in MH/S
--------------EDIT-----------------
So I might be wrong about who originally came up with this, because the post referenced to in the one I linked is by someone else again, but anyway, this has been documented before.
If you actually looked at what I did, it's different from that other modification. I'm not even sure if it really increases speed, or if I'm just having a lucky day with my miner https://bitcointalksearch.org/topic/3-faster-mining-with-phoenixphatk-diablo-or-poclbm-for-everyone-23067
So if you are going to donate to anyone, I'd say let it go to the person that originally discovered this.
I might be wrong about this, but I'm pretty sure a lot of updated miner's have already incorporated this as well, but check for yourself, rethaw's instructions are pretty detailed.
I have been running with the modification myself for about a month, no different in stales but a slight bump in MH/S
--------------EDIT-----------------
So I might be wrong about who originally came up with this, because the post referenced to in the one I linked is by someone else again, but anyway, this has been documented before.
I changed
Code:
#define Ma2(x, y, z) ((y & z) | (x & (y | z)))
Code:
#define Ma2(x, y, z) amd_bytealign((z^y), (x), (y))
The other modification is
Code:
#define Ma(x, y, z) amd_bytealign((y), (x | z), (z & x))
Code:
#define Ma(x, y, z) amd_bytealign( (z^x), (y), (x) )
bump so people can see this
I've heard some people are getting quite a few coins from hacks like this, so, here goes.
I've found that if you go into your poclbm kernel.cl (only tested on mine) and change
To
I get a ~3mhash speedup!
all of my hashes are getting accepted, so I don't know if there are any problems
My bitcoin address is
I've found that if you go into your poclbm kernel.cl (only tested on mine
) and change Code:
#define Ma2(x, y, z) ((y & z) | (x & (y | z)))
Code:
#define Ma2(x, y, z) amd_bytealign((z^y), (x), (y))
all of my hashes are getting accepted, so I don't know if there are any problems
My bitcoin address is
Code:
1M8Av4rzfyMMMrP5nqUmmhKHhZKB1U7Zux
Feel free to donate if this works for you
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