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World Community Grid Forums
Category: Support
Forum: BOINC Agent Support
Thread: Optimization of Boinc on Mac Pro? |
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Thread Status: Active Total posts in this thread: 12
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
 Can someone explain why the progress percentage is so different for these 16 tasks? All were started at the same time, there are no other applications running (other than Finder and the OS background tasks). Why are some cores running slower? Can I optimize the settings so they all run fast? [Edit 1 times, last edit by Former Member at Mar 16, 2012 11:33:03 PM] |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
The Elapsed time is one thing, but what's far more interesting is the CPU time. Select each task and click on the properties button, then compare.
An easy way to see both for all your tasks in one view is fetching BOINCTasks. Runs in WINE or similar. --//-- |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
The CPU time is basically the same as Elapsed time less few seconds for all the tasks.
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KWSN - A Shrubbery
Master Cruncher Joined: Jan 8, 2006 Post Count: 1585 Status: Offline |
The CPU time is basically the same as Elapsed time less few seconds for all the tasks. In that case, you're fine. Some tasks simply take longer to run than others. If your CPU time was significantly lower than elapsed time then you would have optimization issues to address.  Distributed computing volunteer since September 27, 2000 |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
OK, next test: Visit the task slots and look at the stderr.txt file and see how many jobs there are in each task header and how many jobs have already completed in the task.
Again here BOINCtasks is superior in that it can show a column as to how many checkpoints = jobs in a task have completed and how much time since the last checkpoint has passed. The task properties btw shows time since last checkpoint, but not how many were done. --//-- |
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Bearcat
Master Cruncher USA Joined: Jan 6, 2007 Post Count: 2803 Status: Offline Project Badges: 
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What are your CPU temps? If they are high, OSX might be throttling the CPU.
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Crunching for humanity since 2007!
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Here are the temperatures. The computer is in a regular office, 20-21°C.
 I will look at installing the BOINCtasks later. |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Hmm, it looks like there is a quite bit of difference between the two CPUs. Unusual?
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Hmm, it looks like there is a quite bit of difference between the two CPUs. Unusual? That does seem strange.  Load smc fan control and see if you cant get that cpu lower than 80c. http://www.eidac.de/ |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
I did use smcFanControl to bring the temperatures down to current
77° 66° 56° 46° (CPU 1, CPU 1 Heatsink, CPU 2, CPU 2 Heatsink). I played with smCFan for a while, it is cool to control the noise and the speed. After about 10 minutes I put it back on default and the above reported temperatures are achieved at 922 rpm for the PCI fan. Quite quiet. However no matter what the speed the CPU1 was always significantly hotter than CPU2. Is this normal? Any opinions? When I have a bit of downtime I will open the case and blow out any dust but if you have any other ideas please... |
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