3% faster mining with phoenix+phatk for everyone

[Existence]

Good job. Thanks a lot!

[glassine]

Went from 380 to 391 on my 5870 @900MHz.

Nice work!

[jdebunt]

is it possible this doesnt work on nVidia cards? both with OpenCL miner & CUDA miner i'm still getting the exact same hashrate, even after restarting Guiminer.

or am i missing something? (using windows 7 btw)

[bitless]

is it possible this doesnt work on nVidia cards? both with OpenCL miner & CUDA miner i'm still getting the exact same hashrate, even after restarting Guiminer.

or am i missing something? (using windows 7 btw)

Sorry, this only works for ATI cards that support BFI_INT. In general, nVidia cards are much worse for mining, so I'm not sure if there's effort at all going into making nVidia's stuff mine faster...

[Tartarus]

Got the expected bump on my 6950, thanks!

[dovewing2000]

will give this a try after i learn to setup command line miner... thanks!

[KissMate]

Did the job there too with a 6850, solid 2.5% increase. Thanks!

[theunforgiven]

Yay! got the expression:

Y&(Z^X)|X&(~Z^X)

[mrb]

Dude, awesome   so this accounts for 3% out of your 6.4% improvement, where are the other 3.4% coming from? I don't have 250 btc, in fact I only have ~2 that have been donated to me so far. (Please note - if you decide to share this, post it,don't pm me )

I think I deserve the right to keep this remaining ~3% a secret of mine. I have contributed a lot to this community. AFAIK I was the...

* first to show how to down-plug x16 cards in x1 slots by cutting PCIe slots and/or shorting pins A1-B17 http://blog.zorinaq.com/?e=42
* first to use BFI_INT, and document how to patch a kernel with it: http://blog.zorinaq.com/?e=43
* first to document the PCIe 12V rail redirection hack http://blog.zorinaq.com/?e=44
* first to present a cheap solution to cool 4 double width cards http://blog.zorinaq.com/?e=47

Now all the miners are using BFI_INT; shops are selling pre-modified PCIe extenders; etc. Enjoy :-)

[jdebunt]

is it possible this doesnt work on nVidia cards? both with OpenCL miner & CUDA miner i'm still getting the exact same hashrate, even after restarting Guiminer.

or am i missing something? (using windows 7 btw)

Sorry, this only works for ATI cards that support BFI_INT. In general, nVidia cards are much worse for mining, so I'm not sure if there's effort at all going into making nVidia's stuff mine faster...

Yeah i know Nvidia cards aren't too good for mining, but i was hoping for a slight increase... oh well

Thanks for pointing it out tho, much appreciated

[bitless]

Dude, awesome   so this accounts for 3% out of your 6.4% improvement, where are the other 3.4% coming from? I don't have 250 btc, in fact I only have ~2 that have been donated to me so far. (Please note - if you decide to share this, post it,don't pm me )

I think I deserve the right to keep this remaining ~3% a secret of mine. I have contributed a lot to this community. AFAIK I was the...

* first to show how to down-plug x16 cards in x1 slots by cutting PCIe slots and/or shorting pins A1-B17 http://blog.zorinaq.com/?e=42
* first to use BFI_INT, and document how to patch a kernel with it: http://blog.zorinaq.com/?e=43
* first to document the PCIe 12V rail redirection hack http://blog.zorinaq.com/?e=44
* first to present a cheap solution to cool 4 double width cards http://blog.zorinaq.com/?e=47

Now all the miners are using BFI_INT; shops are selling pre-modified PCIe extenders; etc. Enjoy :-)

Sure, of course you do, dude! It was just a joke sorry! By the way, I absolutely love your blog - I've read it a lot, just didn't know it was yours.

[robin007bond]

I tried using Phoenix, but my GPU isn't recognized. Neither with phatk.

I'm running Arch Linux with an Ati Radeon HD4650. DiabloMiner detects my GPU, and I installed AMDStream, so that isn't the problem.

[stealth17]

5870 (930/350), 410->421, 2.6%, thx 

[fizzisist]

I did this with phatk in phoenix-1.50 and I got a 2.4% increase on both my 5870 and my 5770. Thanks!

[hennessy]

Getting some good results, but one out of 7 workers always locks up after some minutes. GPU usage goes down to zero, shown MHash rate stays locked at last value, cursor is still flashing. Occurs only when the cards are overclocked, but the same and even higher OC values work flawless without this fix.

[HolodeckJizzmopper]

6970 @ 975/400 from ~420 Mhash/S to ~432 Mhash/S

[nemesis51]

400 -> 412 on my 5870. great!

[Patheos]

Anyone tried this using guiminer?  I can see the file but not sure if I just edit the portion:

// Ma can also be implemented in terms of BFI_INT...
   #define Ma(x, y, z) amd_bytealign((y), (x | z), (z & x))

[Krypta]

Hy all, I'm new here and pretty new with this bitcoin thing.

I tried to modify phatk kernel as explained and I was able to speed up my mining as all of you.

Really don't know when and how this amd_bytealign function is called, anyway I think it should be better to write it as follows

#define Ma(x, y, z) amd_bytealign(((z) ^ (x)), (y), (x))

That said, I took a look at the rest of the phatk kernel and found what seems to be a sintax error. In my file it's on line 74:

#define r1(x) ((rot(x],15)^rot(x,13)^((x)>>10U)))

Mmmm... that poor and lonely square bracket... rewrite it as follows

#define r1(x) ((rot(x,15)^rot(x,13)^((x)>>10U)))

These modifications did not speed up my mining power but it seems that my rejecteds almost halved.

If this helps you as well, donations are obviously welcome

1CbRmFAYrGYhzQibmE5A1CWMp7srFT4upy

Krypta

[hughes]

Before: 353 MHps
After:  364 MHps
Difference: 11 MHps (3.0%)

Thanks!