Bitcoin Forum
December 03, 2016, 03:53:18 PM *
News: To be able to use the next phase of the beta forum software, please ensure that your email address is correct/functional.
 
   Home   Help Search Donate Login Register  
Pages: [1]
  Print  
Author Topic: 5970 / 5870 higher stales with phoenix/phatk  (Read 1461 times)
Yuvea
Newbie
*
Offline Offline

Activity: 23


View Profile
June 14, 2011, 08:22:23 PM
 #1

I've been mining on a 5970/5870 trifire setup, overclocked 950/1200 and 900/1200, respectively.  I have been using poclbm through GUIMiner and with the recent release of the phoenix/phatk kernel for that frontend, I wanted to give it a try.  Here is a screenshot that I'd like explained:

http://img823.imageshack.us/img823/7885/stales.th.png

You can see that there's a large difference between the stales produced by each kernels.

Here are my custom arguments:


-v -w 128 -f 1 (poclbm)
-k phatk AGGRESSION=19 WORKSIZE=128 BFI_INT VECTORS FASTLOOP=false (phoenix)

Poclbm produces something like 397/395/379 mh/s while phoenix is closer to 404/405/387 mh/s.

So, basically, my question is why does poclbm produces about 0.85% stales (on deepbit) over 200k stales while phoenix is closer to 2-4%?

While we figure this one out, I'll keep using poclbm.  3% higher rate is not worth 3% higher stales.
1480780398
Hero Member
*
Offline Offline

Posts: 1480780398

View Profile Personal Message (Offline)

Ignore
1480780398
Reply with quote  #2

1480780398
Report to moderator
1480780398
Hero Member
*
Offline Offline

Posts: 1480780398

View Profile Personal Message (Offline)

Ignore
1480780398
Reply with quote  #2

1480780398
Report to moderator
1480780398
Hero Member
*
Offline Offline

Posts: 1480780398

View Profile Personal Message (Offline)

Ignore
1480780398
Reply with quote  #2

1480780398
Report to moderator
Advertised sites are not endorsed by the Bitcoin Forum. They may be unsafe, untrustworthy, or illegal in your jurisdiction. Advertise here.
1480780398
Hero Member
*
Offline Offline

Posts: 1480780398

View Profile Personal Message (Offline)

Ignore
1480780398
Reply with quote  #2

1480780398
Report to moderator
1480780398
Hero Member
*
Offline Offline

Posts: 1480780398

View Profile Personal Message (Offline)

Ignore
1480780398
Reply with quote  #2

1480780398
Report to moderator
1480780398
Hero Member
*
Offline Offline

Posts: 1480780398

View Profile Personal Message (Offline)

Ignore
1480780398
Reply with quote  #2

1480780398
Report to moderator
namley
Jr. Member
*
Offline Offline

Activity: 50


View Profile
June 15, 2011, 09:34:59 PM
 #2

I encountered the same thing with 5830's

My hash rate increased by about 10Mhash/s, but I increased about 1-1.5% in stale shares.
That didn't happen until I overclocked the card.
Stock clocks using phatk with phoenix yeilds the same amount of stales from the norm.

namley
Jr. Member
*
Offline Offline

Activity: 50


View Profile
June 15, 2011, 09:37:14 PM
 #3

I encountered the same thing with 5830's

My hash rate increased by about 10Mhash/s, but I increased about 1-1.5% in stale shares.
That didn't happen until I overclocked the card.
Stock clocks using phatk with phoenix yields the same amount of stales from the norm.

Pages: [1]
  Print  
 
Jump to:  

Sponsored by , a Bitcoin-accepting VPN.
Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!