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drummers-lowrise
1) Message boards : Project Staging Area : 2015 PRPNet September Challenge (Message 88316)
Posted 1367 days ago by zlodeck
GTX980 1230/3005MHz core/mem clock
i7-2600K @ 4.5Ghz (8 HT cores)
Windows2008R2 prpclient 5.3.1

2 threads, 1024 blocksize -- 15-18% CPU 41-45% GPU ~72 sec
2 threads, 2048 blocksize -- 27-29% CPU 47-54% GPU ~61 sec
2 threads, 4096 blocksize -- 32-33% CPU 47-59% GPU ~59 sec
2 threads, 6144 blocksize -- 31-32% CPU 47-63% GPU ~59 sec
2 threads, 8192 blocksize -- 32-33% CPU 38-62% GPU ~59 sec

3 threads, 1024 blocksize -- 957M 31-36% CPU 66-71% GPU ~47 sec
3 threads, 2048 blocksize -- 976M 45-46% CPU 72-76% GPU ~43 sec
3 threads, 4096 blocksize -- 1013M 47-49% CPU 71-79% GPU ~43 sec
3 threads, 6144 blocksize -- 1050M 46-48% CPU 70-81% GPU ~43 sec
3 threads, 8192 blocksize -- 1087M 47-48% CPU 70-80% GPU ~43 sec

4 threads, 1024 blocksize -- 1255M 46-48% CPU 77-80% GPU ~41 sec
4 threads, 2048 blocksize -- 1328M 60-63% CPU 84-89% GPU ~37 sec
4 threads, 4096 blocksize -- 1328M 61-63% CPU 87-90% CPU ~37 sec
4 threads, 6144 blocksize -- 1377M 62-63% CPU 87-91% GPU ~37 sec
4 threads, 8192 blocksize -- 1426M 61-63% CPU 85-91% GPU ~37 sec

5 threads, 1024 blocksize -- 1551M 61-63% CPU 83-86% GPU ~38 sec
5 threads, 2048 blocksize -- 1582M 63-70% CPU 88-89% GPU ~36 sec
5 threads, 4096 blocksize -- 1644M 64-72% CPU 89-92% GPU ~36 sec
5 threads, 6144 blocksize -- 1706M 65-73% CPU 88-92% GPU ~36 sec
5 threads, 8192 blocksize -- 1766M 66-71% CPU 89-92% GPU ~36 sec

6 threads, 1024 blocksize -- 1849M 61-70% CPU 84-87% GPU ~37 sec
6 threads, 2048 blocksize -- 1886M 69-75% CPU 87-91% GPU ~36 sec
6 threads, 4096 blocksize -- 1960M 70-76% CPU 89-92% GPU ~35 sec
6 threads, 6144 blocksize -- 2034M 71-77% CPU 90-95% GPU ~35 sec
6 threads, 8192 blocksize -- 2108M 73-81% CPU 90-96% GPU ~35 sec

7 threads, 1024 blocksize -- 2146M 61-70% CPU 82-87% GPU ~38 sec
7 threads, 2048 blocksize -- 2189M 68-78% CPU 85-92% GPU ~37 sec
7 threads, 4096 blocksize -- 2275M 71-81% CPU 85-93% GPU ~35 sec
7 threads, 6144 blocksize -- 2362M 73-82% CPU 87-95% GPU ~35 sec
7 threads, 8192 blocksize -- 2448M 73-85% CPU 85-97% GPU ~36 sec
2) Message boards : Project Staging Area : 2015 PRPNet September Challenge (Message 88315)
Posted 1367 days ago by zlodeck
Now I am getting this error on my second computer :/

Could not find completion line in log file [wwww.log]. Assuming user stopped with ^C
[/code]


If the client is running under Windows check the permission rights to the client directory. Set "Full control" for Users group.
3) Message boards : Project Staging Area : 2015 PRPNet September Challenge (Message 88303)
Posted 1367 days ago by zlodeck
CPU utilization is controlled by the key
threads=N

Each client will use N+1 CPU cores (1 core is used with gpu)

What CPU You run? With Your settings single client tries to utilize 7 CPU cores. I guess it is not the best choice for multiple GPU config.

About low GPU load: it is possible to run several clients on a single GPU (keys "device=" in wwww.ini must be identical for these clients). Unfortunately, each client will "eat" CPU cores. For multiple GPU config I would prefer to run single client on single GPU and pay no attention the low GPU load. Additionally try to increase "blocks=".



/UPD
The statement "N threads utilizes N+1 processor cores" is not exactly correct.

It's almost right for NVidia gpu's.
So, GTX570 with threads=2 on core2quad-cpu uses 65-72% of cpu (more than 2 and less than 3 cores).
GTX980 with threads=5 on i7-2600K (8 HT cores) uses 63-74% (5-6 cores).

And ATI gpu's fairly utilize the number of cpu cores specified with "threads" parameter.
4) Message boards : Sierpinski/Riesel Base 5 Problem : First Prime(s)! (Message 66941)
Posted 2192 days ago by zlodeck
It is already on the SR5-description page including a link to the prime database:
55154*5^1063213+1 found by Senji Yamashita on 16 June 2013


Follow second link and look for Senji's Database Id...
Goddamit, I cannot beleive - 666 found !!
Ok, we know he got help directly from the Hell :))


5) Message boards : Number crunching : The Autumnal Equinox Challenge (Message 40730)
Posted 2824 days ago by zlodeck
Sorry, no idea to help You.
Probably we have new (and specifically related E-350 architecture) bug in calculation module.

Try to call for developers, maybe they can solve Your problem.

P.S. Try to stop boinc, flush project folder, start boinc and re-download all files related WOO LLR subproject.
6) Message boards : Number crunching : The Autumnal Equinox Challenge (Message 40727)
Posted 2824 days ago by zlodeck
I also have the error, with WUs just get finished within 5 seconds.


Do You really see the status of funished tasks as 'Calculation Error', not as 'Completed'? Very strange! Boinc stderr output of such tasks reports NO exit code indicating WU finish with NO error.
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