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dds56
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Posts: 19
Registered: ‎05-03-2016
Location: US
Views: 1,155
Message 1 of 4

P50 - turn-off hyperthreading

Is it possible to turn-off hyperthreading? I want to dedicate at least one core to single threaded task.

matthiash
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Posts: 14
Registered: ‎02-22-2016
Location: Austria
Views: 1,135
Message 2 of 4

Re: P50 - turn-off hyperthreading

Yes, it can be disabled in the BIOS.
Config -> CPU -> Intel (R) Hyper-Threading Technology
dds56
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Posts: 19
Registered: ‎05-03-2016
Location: US
Views: 1,099
Message 3 of 4

Re: P50 - turn-off hyperthreading

have you tried this on P50? Some othee machines, though they do allow entering and adjusting a few parameters in BIOS, do not allow access to hyperthreading option. Thanks!
matthiash
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Posts: 14
Registered: ‎02-22-2016
Location: Austria
Views: 1,094
Message 4 of 4

Re: P50 - turn-off hyperthreading

Yes, I tried it. After changing the setting to 'disabled', the operating system (Linux) showed only 4 CPUs instead of 8.

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