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World Community Grid Forums
Category: Community
Forum: Hardware Chat Room
Thread: % of CPUs VS % of CPU time |
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Thread Status: Active Total posts in this thread: 23
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
I forgot, boinc does not interfere at all with other things you do on the system no matter what your settings, as it is flagged "lowest priority" by default. This is an add on to the post before this.
----------------------------------------[Edit 1 times, last edit by Former Member at Apr 30, 2020 9:58:15 PM] |
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verlyol-belgium
Cruncher Belgium Joined: Jul 24, 2008 Post Count: 44 Status: Offline Project Badges: 
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For me always CPU time @ 100% and and most of the time 100% for % of CPU (without SMT).
---------------------------------------- Ryzen 5 3600 Ryzen 7 7800 x3d |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
I forgot, boinc does not interfere at all with other things you do on the system no matter what your settings, as it is flagged "lowest priority" by default. This is an add on to the post before this. Actually it does, particularly if there is lots of swapfile trashing and disk writing. This is why you can set a minimum of overall system load as a measure for BOINC to pause for 10 seconds. After 10 seconds the load is tested again and if the limit has dropped below the threshold, crunching is resumed. As it is, if BOINC is prevented from receiving 'I'm alive' from the running science apps for 30 seconds, you could end up losing jobs in progress, hence why I've set "While processor usage is less than to 80%. Just had one 13813 5/14/2020 6:55:00 PM Suspending computation - CPU is busy --- 13824 5/14/2020 6:55:10 PM Resuming computation [Edit 1 times, last edit by Former Member at May 14, 2020 5:08:25 PM] |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
I haven't had that problem, but i set 100% on three of my four cores and it isn't allowed to use my fourth core at all. Are you using all your cores for boinc?
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Think the default setting is 25% when all resources are used, so guess your mostly idling the 4th core/thread is the escape clause.
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
I leave the fourth core off because of heating and power draw. Plus the work units aren't interrupted if i hop online or piddle with the computer.
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Miklos. M
Cruncher USA Joined: Jun 28, 2020 Post Count: 18 Status: Offline Project Badges:
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This may not belong here, in that case, I am sorry. I do have a question, I have a computer with 36 cores and I would like to set it so it runs only 11 at a time, this seems to be the fastest for it.
Thank you |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Since the formula rounds down to the nearest whole thread, you'd have to enter 31% of CPUs
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Miklos. M
Cruncher USA Joined: Jun 28, 2020 Post Count: 18 Status: Offline Project Badges:
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I set it at 31%, but the computer still insists on crunching on all 36 cpu's.
I appreciate your answer, maybe you have another idea to try? I hope so. Miklos |
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