Posts by kashi

\n studio-striking\n
1) Message boards : Number crunching : When are the stats on this site going to be fixed ? (Message 627)
Posted 11 Jun 2011 by kashi
Post:
Yes both host and participant entries can disappear or appear twice. This may happen when host or participant has moved from one page to another, depending on when the different webpages update. Probably affects teams listing sometimes too but the team positions don't move around as much so it would be relatively rare.

Disappearance may happen when the page you or your computer has moved from has updated so you are no longer listed there and the page you are moving to has not yet updated so you are not listed there yet. If the page you have moved to is the first to update this may result in a multiple appearance. If you in a position close to a multiple of 20 which is the size of a page and move from one page to another often, you can disappear or appear twice many times.

This is a longstanding BOINC foible I first noticed a fair while ago. It think it affects all BOINC projects that use the standard BOINC stats reporting format. When missing from the list when ranked by RAC you should still be listed when it is ranked by Total credit and vice versa.
2) Questions and Answers : Web site : Half Web Page in another Language (Message 464)
Posted 24 May 2011 by kashi
Post:
Yes all fine here now, thank you.
3) Questions and Answers : Web site : Half Web Page in another Language (Message 454)
Posted 24 May 2011 by kashi
Post:
At least the language varies for interest.:) Japanese today:

コミュニティ

プロファイル(自己紹介)
User search
掲示板
質問と答(Q&A)
Statistics
Languages

4) Message boards : News : Switched to granting static credit (Message 270)
Posted 12 May 2011 by kashi
Post:
DNETC@HOME granted 8.05 credits per stats unit.
5) Questions and Answers : Preferences : benchmarks (Message 227)
Posted 11 May 2011 by kashi
Post:
"C:\Users\All Users\BOINC\projects\moowrap.net\dnetc518-win32-x86-stream.exe" -bench

HD 5870 @ 900/500, Win 7 64, CPU 75% load, 6 core VM Linux 64 DNA@Home:

[May 11 01:26:47 UTC] RC5-72: using core #0 (IL 4-pipe c).
[May 11 01:26:53 UTC] RC5-72: Benchmark for core #0 (IL 4-pipe c)
0.00:00:03.36 [1,286,084,096 keys/sec]
[May 11 01:26:53 UTC] RC5-72: using core #1 (IL 4-pipe c alt).
[May 11 01:26:59 UTC] RC5-72: Benchmark for core #1 (IL 4-pipe c alt)
0.00:00:03.65 [1,194,784,280 keys/sec]
[May 11 01:26:59 UTC] RC5-72: using core #2 (IL 4-pipe 2 threads).
[May 11 01:27:05 UTC] RC5-72: Benchmark for core #2 (IL 4-pipe 2 threads)
0.00:00:03.30 [1,314,060,341 keys/sec]
[May 11 01:27:05 UTC] RC5-72: using core #3 (IL 4-pipe cs-1).
[May 11 01:27:09 UTC] RC5-72: Benchmark for core #3 (IL 4-pipe cs-1)
0.00:00:02.18 [2,019,961,462 keys/sec]
[May 11 01:27:09 UTC] RC5-72 benchmark summary :
Default core : #0 (IL 4-pipe c)
Fastest core : #3 (IL 4-pipe cs-1)
[May 11 01:27:09 UTC] Core #3 is significantly faster than the default core.
The GPU core selection has been made as a tradeoff between core speed
and responsiveness of the graphical desktop.

HD 5870 @ 900/500, Win 7 64, CPU idle:

[May 11 01:31:20 UTC] RC5-72: using core #0 (IL 4-pipe c).
[May 11 01:31:25 UTC] RC5-72: Benchmark for core #0 (IL 4-pipe c)
0.00:00:03.30 [1,319,918,108 keys/sec]
[May 11 01:31:25 UTC] RC5-72: using core #1 (IL 4-pipe c alt).
[May 11 01:31:32 UTC] RC5-72: Benchmark for core #1 (IL 4-pipe c alt)
0.00:00:03.58 [1,212,948,686 keys/sec]
[May 11 01:31:32 UTC] RC5-72: using core #2 (IL 4-pipe 2 threads).
[May 11 01:31:37 UTC] RC5-72: Benchmark for core #2 (IL 4-pipe 2 threads)
0.00:00:02.63 [1,683,673,944 keys/sec]
[May 11 01:31:37 UTC] RC5-72: using core #3 (IL 4-pipe cs-1).
[May 11 01:31:41 UTC] RC5-72: Benchmark for core #3 (IL 4-pipe cs-1)
0.00:00:02.10 [2,102,272,000 keys/sec]
[May 11 01:31:41 UTC] RC5-72 benchmark summary :
Default core : #0 (IL 4-pipe c)
Fastest core : #3 (IL 4-pipe cs-1)
[May 11 01:31:41 UTC] Core #3 is significantly faster than the default core.
The GPU core selection has been made as a tradeoff between core speed
and responsiveness of the graphical desktop.

6) Questions and Answers : Windows : Multi-GPU task takes longer than single-gpu task (Message 157)
Posted 7 May 2011 by kashi
Post:
Credit can scale both ways, way up first and then way down.

Currently granting me only 2943 credits for a 7 packet, 448.00 stats units task. DNETC fixed credit of 8.05 per stats unit would have granted 3606 credits for the same task. Only a little way to go down and it will be granting a lower credit rate than PrimeGrid PPS Sieve which runs much cooler and uses far less power. Who knows, maybe it will go up again, perhaps I inadvertently triggered the anti-cherrypicker algorithm by aborting a batch of tasks to get the new version. I've been granted a range of 2400 to 28000 credits for similar size 7 packet tasks.

I swapped my 5970 for a 5870. Very little CPU usage but still slow. At first took about the same time as my 5970 (over an hour) but after a few tasks, it suddenly got into gear and VDDC current jumped from 34.8A to over 70A. That task took only 19.4 minutes. Had 2 others that took 40 minutes and one that took 47 minutes. Then new version was introduced and all since then took 67-73 minutes.

I knew the GPU was bottlenecked as key/s speed didn't change when varying GPU core speed between 725MHz and 900MHz. Eventually I changed to core 3 in preferences and it came alive, processing speed became about 4.5 times faster. A 7 packet task now takes about 16 minutes @ 900/500 core/memory, processing speed is about 2,015.23 Mkeys/s. Had to increase the fan speed as VDDC is now drawing 70-74A.

The dnetc518 stream application appears to default to core 0, which is designed to minimise GUI lag and perhaps stop people from burning out their cards. Unfortunately on some configurations it hobbles the performance a great deal.

Will put my 5970 back in tomorrow and see if setting core 3 works on that too. Hopefully some others may benefit from trying this, but watch your core and VRM temps carefully if it works as you may have been lulled into a false sense of security from when it was going slow.

My thanks to frankhagen and Bijek for posting about core selection.
7) Questions and Answers : Windows : Multi-GPU task takes longer than single-gpu task (Message 125)
Posted 6 May 2011 by kashi
Post:
Tasks take one hour on my HD 5970 @ 770/600. Use 2 full CPU cores. Stderr output shows application is restarting every 5 minutes. With no CPU projects running GPU usage is 99% but temperature of core and VRMs is low and power draw is also low. The GPU engines are revving at full speed but have almost no torque.

Xeon W3520 @ 3.1 GHz, Win 7 64, BOINC 6.12.22. Cat 11.4 Preview (1.4.1353).





 
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