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Questions and Answers : Macintosh : Unable to use 100% of all 4 cores

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Marc
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Joined: 8 Jan 15
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Message 51164 - Posted: 8 Jan 2015, 11:34:44 UTC

Hi

I have just started crunching and set my computing preferences without any limitations on cpu time and on percentage of processors.

The only project I have running is climateprediction.net, on a 15" 2014 MacBook Pro.

I was expected Boinc to fully use 100% of all my 4 cores, but using iStats I see that my task only uses 50 percent of each of my 4 physical cores (and none of the HT cores but that's not an issue).

Activity Monitor shows 100% use by the task, which is the weighted sum of all the cores, wether physical or HT. It treats each core as 100%, with a total of 800% when I send 8 "yes" terminal instances.

Maybe this is where the problem lies; the Boinc preferences only allows a maximum of 100% cpu use and it is interpreted the same way as Activity Monitor does.

Does anyone have any ideas on how to resolve this ?

Thanks

Marc
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Joined: 8 Jan 15
Posts: 2
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Message 51165 - Posted: 8 Jan 2015, 12:43:27 UTC

Just received more tasks, now my cpu is really using 100% of all 4 cores :)

False alarm then, my bad.

Questions and Answers : Macintosh : Unable to use 100% of all 4 cores


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