After 12+ yrs , I recently moved up to an AMD 5950X , 16 cores . Currently it has HT enabled . If I run an engine with 8 threads , it uses 25 % of the cpu power . With HT turned off it will use 50 % . What is the approx Elo difference between the two methods ? I'm not worried about a small difference , but curious .....
Thanks ....
Hyperthreading question ?
Moderators: hgm, chrisw, Rebel
-
- Posts: 2629
- Joined: Tue Aug 30, 2016 8:19 pm
- Full name: Rasmus Althoff
Re: Hyperthreading question ?
I think there shouldn't be any because your operating system should be smart enough not to load a core with two worker threads if there are still unused cores available.
Rasmus Althoff
https://www.ct800.net
https://www.ct800.net
-
- Posts: 5354
- Joined: Tue Oct 20, 2020 4:18 am
- Full name: Basti Dangca
Re: Hyperthreading question ?
Much better with the usage of HT. I think it has the same ELO but different usage of CPU. You can test it, with a same engine doing a 1000 or 100 games the one with HT on 8 threads vs 1 thread and the one with HT off 8 threads vs 1 thread. Then you can compare the results. But it must use exactly the same opening for both testing.WuShock wrote: ↑Sun Aug 07, 2022 12:34 pm After 12+ yrs , I recently moved up to an AMD 5950X , 16 cores . Currently it has HT enabled . If I run an engine with 8 threads , it uses 25 % of the cpu power . With HT turned off it will use 50 % . What is the approx Elo difference between the two methods ? I'm not worried about a small difference , but curious .....
Thanks ....
Basti Dangca
CCRL testing group
CCRL testing group