OpenRC: set cpu affinity or disable hyperthreading? [SOLVED]

[Zucca]

I'll write this briefly.
I started playing around with LLMs by using ollama.

Shortly after I noticed that ollama used exact half the available CPU threads. But there's a reason: It tries to avoid hyperthreading, which should make processing LLMs faster.
It looks like the code just reduces the number of threads by the amount it finds thread siblings.
I run ollama as service using the provided OpenRC init script. I wonder if I can set cpu affinity (choose exact cpu threads which would execute on different core) via /etc/conf.d/ollama? Or is it simply possible to outright disable hyperthreading of a process via the config?
Because when looking at process monitor it looks like the loaded threads are now chosen randomly (by kernel).
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..: Zucca :..

[pietinger]

[szatox]

You can disable HT in bios. I don't know of any way to do that in runtime, perhaps uefi vars could do that, but... Unless you're going to keep flipping that flag on an off, it will be faster to just reboot than research it.
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Make Computing Fun Again

[Zucca]