python OpenCL bitcoin miner - page 16.

marcus_of_augustus

legendary

Activity: 3920

Merit: 2349

Eadem mutata resurgo

Quote from: m0mchil on April 28, 2011, 02:59:53 AM

New version is up. Changes:

- BFI_INT (~10% performance improvement)
- TCP keep-alive

thanks for the update.

Can confirm that poclbm is now up to speed with phoenix (maybe even slightly better but will have to watch shares found over time to confirm).

HD 5970, ubuntu 10.10, SDK 2.1, fglrx 11.2
seems that mem. under-clock speeds (775/300) with linux now works with m0mchill ... yay. Was this connected to the BFI_INT capability?

Faster, cooler, quieter.

TheShoura

member

Activity: 98

Merit: 10

Testing

How do you use the --platform flag?

https://bitcointalksearch.org/topic/how-to-use-platform-flag-for-poclbm-6745

m0mchil

full member

Activity: 171

Merit: 127

@kindle
Yes, it is on by default if the hardware supports it.

Both miners are now the same in terms of hash checking. Phoenix has far better documented and structured code. It also cares about 'efficiency', something I'm tired of explaining that actually doesn't matter.

Also, Phoenix seems to have different way of load tuning (aggression) which on my particular setup results in more laggy behavior... and perhaps slightly better performance for dedicated mining rigs, not sure.

I hope I won't attract anger with blatantly copying their BFI_INT support. I tried something like this a month ago but didn't understand there is "elf within elf".

JWU42

legendary

Activity: 1666

Merit: 1000

I am seeing same performance as Phoenix 1.3 as well - fwiw

Seems BFI_INT is on by default

kindle

member

Activity: 84

Merit: 10

Hi m0mchil thanks for keeping your miner up to speed with the bit_int support. Out of curiosity does your latest version activate the bit_int support automatically? Is there a flag I have to add to activate it.

Also I noticed similar performance to that of phoenix. I guess essentially both miners are the same as it is running the same kernel, however is the hash checking the same for both?

fasti

member

Activity: 92

Merit: 10

http://support.amd.com/us/kbarticles/Pages/AMDCatalyst114ReleaseNotes.aspx

Quote

GPU Compute enhancements:

The OpenCL runtime (included in AMD Catalyst 11.4) includes performance enhancements supporting zero-copy on APUs and increased performance for PCIe transfers between a CPU and discrete GPU.

Wonder if this can improve mining...

vuce

sr. member

Activity: 476

Merit: 250

Works great. I get pretty much the same hashrate as with phoenix, but the number of submitted shares is ~7% higher (or maybe the last 3 hours were just extremely lucky).

qed

full member

Activity: 196

Merit: 100

Working great on HD 6950s.

Grinder

legendary

Activity: 1284

Merit: 1001

I updated my post almost immediately with some info. Do you need to know anything else? Parameters are -d 1 -w 128 -f 0 -r 2

Hm. No errors if I add -v. Same thing happens on a 5850 on the same system, although I did get one accepted before it exited when I tried.

m0mchil

full member

Activity: 171

Merit: 127

Grinder, it would be really nice if you mention what your setup consists of. Thanks

Grinder

legendary

Activity: 1284

Merit: 1001

I'm getting verification failed, check hardware on the first block it finds every time. Same setup worked with the old version and works with phoenix. Debian, OpenCL 2.1, 5970.

m0mchil

full member

Activity: 171

Merit: 127

New version is up. Changes:

- BFI_INT (~10% performance improvement)
- TCP keep-alive

IlbiStarz

full member

Activity: 336

Merit: 100

I see a lot of people talking about the "mod" and playing around with a bunch off -v -w, etc. How do you use them, and what do they do? Do they give you higher mh/s?

Also, why am I not able to have any other programs open while mining? If I have anything open, or open an application during mining, my computer freezes and I have to reboot.

marcus_of_augustus

legendary

Activity: 3920

Merit: 2349

Eadem mutata resurgo

m0mchill,

just sent you a donation for all the sterling work that your miner has done for me .... moved over to phoenix now but your efforts were appreciated.

cheers,

moa

kaitink00man

newbie

Activity: 1

Merit: 0

Quote from: EgoPaintedGrey on April 24, 2011, 10:04:43 PM

With the mod i got + 8 M hash/sec on my 5870.

Windows 7 pro x64
Catalyst 11.4 pre release
SDK 2.4
5870 @980/300

Impressive stats Shocked

EgoPaintedGrey

member

Activity: 77

Merit: 10

With the mod i got + 8 M hash/sec on my 5870.

Windows 7 pro x64
Catalyst 11.4 pre release
SDK 2.4
5870 @980/300

Garrett Burgwardt

sr. member

Activity: 406

Merit: 256

Fixed my old post with some more infos.

kindle

member

Activity: 84

Merit: 10

Quote from: Garrett Burgwardt on April 24, 2011, 06:05:26 PM

6990, 2.4 11.4, +8 mh/s or so, from 327 to 335

Wow great hash rate, besides the OS whats your core and mem clock speed. Have you tried downvolting the vcore?

I am running dual 6990 at 0.935 vcore with 750 core and 625 mem clockspeed. Apparently down memclock only works when core is at 750. Running at -v -w 128 -f 0 on unmod poclbm I get 288 mhash/s per core.

ghost

newbie

Activity: 34

Merit: 0

Quote from: Garrett Burgwardt on April 24, 2011, 06:05:26 PM

6990, 2.4 11.4, +8 mh/s or so, from 327 to 335

What OS is this on?

Garrett Burgwardt

sr. member

Activity: 406

Merit: 256

6990, 2.4 11.4, 7 x64 Ultimate, +8 mh/s or so, from 327 to 335

1.15v, 900 core 1350 mem, I play games so I don't gimp the memory clock Wink

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