Using multiple cpus on new mac pro

Questions and Answers : Macintosh : Using multiple cpus on new mac pro

To post messages, you must log in.

AuthorMessage
SDevenshire

Send message
Joined: 22 Apr 00
Posts: 14
Credit: 21,570,329
RAC: 2,662
United States
Message 1512567 - Posted: 5 May 2014, 18:50:21 UTC

Hi Folks,

I have been running a Mac Pro with Seti for 7 years, a dual quad, runs 8 tasks at once no problem.

Have purchased the new Mac Pro and it runs 8 tasks when it could run 24. Can't figure out what is wrong. Have set the max CPU's to 24. The mac runs 8 tasks assigning each to three threads and then it cycles through those three threads. So 1 is active at 100% and 2 at 0%. I want 24 threads at 100% - is this possible, and if so how?

TIA


ID: 1512567 · Report as offensive
OzzFan
Volunteer tester
Avatar

Send message
Joined: 9 Apr 02
Posts: 15102
Credit: 45,160,878
RAC: 40,378
United States
Message 1512574 - Posted: 5 May 2014, 19:14:54 UTC - in response to Message 1512567.

There are two preference settings for telling BOINC how many CPUs to use:

On multiprocessors, use at most	8 processors


On multiprocessors, use at most 
Enforced by version 6.1+	75% of the processors


The first one is for use with BOINC 5.10 and earlier. The second one, in the form of a percentage, is the one to use for all newer versions of BOINC. BOINC is seeing all 24 CPUs on your Mac, so if BOINC is not using them, then it is a preference thing.

ID: 1512574 · Report as offensive
Mark Seeger

Send message
Joined: 16 May 99
Posts: 15
Credit: 7,417,537
RAC: 2,278
United States
Message 1515890 - Posted: 14 May 2014, 8:55:55 UTC - in response to Message 1512574.

Yeah I have the same issue. Running seri at home 7.00, I have a 6 core 3.5 GHz mac pro (the new one) yet only running 8 work units, despite CPU usage in the preferences is set to 100%.

Can someone elaborate?

thanks,

Mark


ID: 1515890 · Report as offensive
OzzFan
Volunteer tester
Avatar

Send message
Joined: 9 Apr 02
Posts: 15102
Credit: 45,160,878
RAC: 40,378
United States
Message 1515926 - Posted: 14 May 2014, 11:40:19 UTC - in response to Message 1515890.

Can you post the first 30 lines of your BOINC Event Log?

ID: 1515926 · Report as offensive
Profile ZalsterProject Donor
Volunteer tester
Avatar

Send message
Joined: 27 May 99
Posts: 3371
Credit: 144,027,827
RAC: 12,463
United States
Message 1515952 - Posted: 14 May 2014, 12:49:11 UTC - in response to Message 1515890.

what is the second to last line in preferences say. Where it says "on multiprocessors use at most"?

ID: 1515952 · Report as offensive

Questions and Answers : Macintosh : Using multiple cpus on new mac pro


 
©2016 University of California
 
SETI@home and Astropulse are funded by grants from the National Science Foundation, NASA, and donations from SETI@home volunteers. AstroPulse is funded in part by the NSF through grant AST-0307956.