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omyang
n00b
n00b


Joined: 19 Dec 2014
Posts: 2
Location: China

PostPosted: Tue Dec 30, 2014 2:11 am    Post subject: problem with cpu throttling Reply with quote

Dear all,

I have a W520 with Intel(R) Core(TM) i7-2860QM CPU @ 2.50GHz and gentoo 3.17.7. When installing ATLAS3.10.2 from http://math-atlas.sourceforge.net/, the configure step said
"CPU Throttling apparently enabled!
It appears you have cpu throttling enabled, which makes timings
unreliable and an ATLAS install nonsensical. Aborting."

But I have modified every thread to performance mode with the "sys-power/cpufrequtils" tool. Also in the bios and kernel, I have enabled the performance mode.

Could anyone tell me what caused this? Or how can I really turn off the cpu throttling if not done with performance mode? Or anyone who has experience with ATLAS, just tell me how to skip this configure step, the option "-Si cputhrchk 0" didn't work in my case.

Thank you so much! :)
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Ant P.
Watchman
Watchman


Joined: 18 Apr 2009
Posts: 6014

PostPosted: Tue Dec 30, 2014 6:48 pm    Post subject: Reply with quote

Does your CPU have a "turbo mode" feature? You'd probably need to turn that off too.
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P.Kosunen
Guru
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Joined: 21 Nov 2005
Posts: 309
Location: Finland

PostPosted: Mon Nov 21, 2016 3:14 pm    Post subject: Reply with quote

How can i check or monitor if CPU is throttling (Intel Core i3-5010U)?
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