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Topic: further improved phatk_dia kernel for Phoenix + SDK 2.6 - 2012-01-13 - page 17. (Read 106777 times)

full member
Activity: 182
Merit: 100
Tried it out for the first time and I do see some noticable gains.



5850 @ 970/350
GUIMiner 2011-7-1

poclbm opencl - 410-413Mh
phoenix phatk - 408-413Mh

with your modified kern - 415-416.4Mh



Send a little something your way
hero member
Activity: 769
Merit: 500
Guys, I introduced a small glitch, which produces an OpenCL compiler warning in version 07-07. For stability reasons please change line 77:

old:
u W[123];

new:
u W[124];

I missed sharound(123), which writes to W[123], which is undefined, because it's out of range. Sorry for that!
Will upload a fixed version shortly (only includes the change above and stays 07-07).

Edit:
Download 07-07 fixed: http://www.mediafire.com/?o7jfp60s7xefrg4

Dia
newbie
Activity: 22
Merit: 0
2011-07-03 -> 2011-07-07

Wheezy x64, 11.4, SDK 2.4:

Box #1:

- HD5750, 875/300, AGGRESSION=11, 175 MH/s -> 176 MH/s

Box #2:

- HD5750, 900/300, AGGRESSION=11, 181 MH/s -> 183 MH/s
- HD5770, 950/300, AGGRESSION=11, 215 MH/s -> 217 MH/s

XP 32, 11.7 preview, SDK 2.5:

- HD5770, 1000/300, AGGRESSION=12, 222 MH/s -> 223 MH/s
- HD5830, 1050/300, AGGRESSION=9, 337 MH/s -> 337 MH/s

phatk w/ Ma patch -> 2011-07-07

Natty x32, 11.6, SDK 2.4:

- HD5750, 900/300, AGGRESSION=9, 176 MH/s -> 176 MH/s
- HD5770, 950/1200 (going to be RBE'ed to 300 Wink), AGGRESSION=9, 204 MH/s -> 204 MH/s
- HD5830, 1000/300, AGGRESSION=9, 312 MH/s -> 313 MH/s

phoenix 1.50 w/ common flags: VECTORS BFI_INT FASTLOOP=false WORKSIZE=256

Nice work, sent some bitcents to 1B6LEGEUu1USreFNaUfvPWLu6JZb7TLivM. Smiley
full member
Activity: 139
Merit: 100
hero member
Activity: 769
Merit: 500
I have a feature request

Can you please make it work with intel openCL?

thank you

I know that Intel recently released and OpenCL gold SDK ... the kernel uses standard OpenCL commands and an AMD extension only for BFI_INT / BITALIGN. I see no reason why it should not work. Have you got some error logs for me? You know that for Intel it will only use the CPUs!?

Dia
hero member
Activity: 769
Merit: 500
version 2011-07-06 gives best over all speed. 0.500 faster then my modded one but opening firefox drops speed from 277 down to 233 where my one only drops 2mh/s. Probably just the way phatk works since iv never used the stock one.

version 2011-07-07 is all over the place. jumps between 255-280 without firefox open so don't know if its faster or slower. With firefox its more stable then older version and drops to 252-258

Im using it with poclbm.exe -v -w 256 (128 gave same result) on 6850 overclocked/underclocked and 2.1 SDK.

I discovered a MH/sec drop while, using Firefox, too. It has to be related with the new GPU acceleration that FF implemented in 4.0 and up.
hero member
Activity: 769
Merit: 500
Excellent.

It looks like this SDK 2.1 bugfix is popular!  Perhaps now people will stop telling me to use SDK 2.4.

Thanks Diapolo for the fix and I'm glad I was able to help.


It was only possible to fix it that fast, because you showed me the log files and error output! So we helped eachother, thanks too!

Dia
member
Activity: 77
Merit: 10
I have a feature request

Can you please make it work with intel openCL?

thank you
member
Activity: 98
Merit: 10
version 2011-07-06 gives best over all speed. 0.500 faster then my modded one but opening firefox drops speed from 277 down to 233 where my one only drops 2mh/s. Probably just the way phatk works since iv never used the stock one.

version 2011-07-07 is all over the place. jumps between 255-280 without firefox open so don't know if its faster or slower. With firefox its more stable then older version and drops to 252-258

Im using it with poclbm.exe -v -w 256 (128 gave same result) on 6850 overclocked/underclocked and 2.1 SDK.
legendary
Activity: 1246
Merit: 1011
Excellent.

It looks like this SDK 2.1 bugfix is popular!  Perhaps now people will stop telling me to use SDK 2.4.

Thanks Diapolo for the fix and I'm glad I was able to help.
member
Activity: 98
Merit: 10
SDK 2.1 working for 5h now.

Newest version seems to behave more stable (less delta max-min). Speed is about 0.5MHash higher, but it can be just impression.
newbie
Activity: 36
Merit: 0
808.6 MH/sec max now (up 1-2% at least) from 7-6-11 to 7-7-11
hero member
Activity: 812
Merit: 502
Well to be perfectly honest and objective 0.5% increase won't make any difference even with my setup  Roll Eyes At least not in terms of financial benefits Smiley

But I don't mean to belittle your work - well done Smiley
hero member
Activity: 769
Merit: 500
Well finally I can see some improvement.

With todays version I got from 1748 to 1758 so ~10Mhash increase.

This is for 4x 5870 @ 960Mhz Core & 300Mhz Memory
SDK 2.1


Seems like good news for SDK 2.1 users, right Wink?
hero member
Activity: 812
Merit: 502
Well finally I can see some improvement.

With todays version I got from 1748 to 1758 so ~10Mhash increase.

This is for 4x 5870 @ 960Mhz Core & 300Mhz Memory
SDK 2.1
hero member
Activity: 630
Merit: 500
Excellent work on this kernel.  It seems like the original author got to a point where he thought he had improved performance to almost the max, but you are progressing very nicely!
legendary
Activity: 1148
Merit: 1001
Radix-The Decentralized Finance Protocol
This kernel will cause poclbm to exit after running for a while.
I have tested several times, after few hours poclbm will be gone and my machine left there doing nothing

AMD5870 with SDK 2.5

That's the first report I get with that problem. Any other poclbm users with that observation?

Dia

I reported it twice in this same thread...

It only happens in one of my cards (I have 4 5870's, and I have one that its an identical model that works fine). In phoenix what happens is that it will give a mistake about a kernel mistake and will continue mining (I suspect phoenix reloads the kernel).
hero member
Activity: 769
Merit: 500
This kernel will cause poclbm to exit after running for a while.
I have tested several times, after few hours poclbm will be gone and my machine left there doing nothing

AMD5870 with SDK 2.5

That's the first report I get with that problem. Any other poclbm users with that observation?

Dia
member
Activity: 77
Merit: 10
This kernel will cause poclbm to exit after running for a while.
I have tested several times, after few hours poclbm will be gone and my machine left there doing nothing

AMD5870 with SDK 2.5
full member
Activity: 147
Merit: 100
Went from 433/Mhash to 440/Mhash on 5870. Overclocked to 970Mhz.
Thanks  Smiley Donation sent.
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