LocalLLaMA

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Community to discuss about Llama, the family of large language models created by Meta AI.

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Looking for CPU Inference Hardware (8 Channel Ram Server Motherboards) (alien.top)

submitted 1 year ago by jasonmbrown@alien.top to c/localllama@poweruser.forum

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Just wondering if anyone with more knowledge on server hardware could point me in the direction of getting an 8 channel ddr4 server up and running (Estimated bandwidth speed is around 200gb/s) So I would think it would be plenty for inferencing LLM's.
I would prefer to go used Server hardware due to price, when comparing the memory amount to getting a bunch of p40's the power consumption is drastically lower. Im just not sure how fast a slightly older server cpu can process inferencing.

If I was looking to run 80-120gb models would 200gb/s and dual 24 core cpu's get me 3-5 tokens a second?

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[–] FaustBargain@alien.top 1 points 1 year ago (2 children)

my setup

EPYC Milan-X 7473X 24-Core 2.8GHz 768MB L3

512GB of HMAA8GR7AJR4N-XN HYNIX 64GB (1X64GB) 2RX4 PC4-3200AA DDR4-3200MHz ECC RDIMMs

MZ32-AR0 Rev 3.0 motherboard

6x 20tb WD Red Pros on ZFS with zstd compression

SABRENT Gaming SSD Rocket 4 Plus-G with Heatsink 2TB PCIe Gen 4 NVMe M.2 2280

you can probably get away with a non-x without really an performance difference. it might make a difference in very tiny models, but that's not the point of getting such a beastly machine.

I got the Milan-X because I also use it for cad, and circuit board development, and gaming, and video editing so it's an all in one for me.

also my electric bill went from $40 a month to $228 a month, but some of that is because I haven't setup the suspend states yet and the machine isn't sleeping the way I want it to yet. I just haven't gotten around to it. i imagine it would cut the bill in half, and then maybe choosing the right fan manager and governors might save me another $30 a month.

I can run falcon 180b unquantized and still have tons of ram left over.

[–] fallingdowndizzyvr@alien.top 1 points 1 year ago

also my electric bill went from $40 a month to $228 a month

I take it you live in a low cost electricity area if your bill was $40 before that. Where I live, people can pay 10 times that even if they just live in an apartment. So in high cost areas like mine, the power and thus electricity cost savings for something like a Mac would end up paying for it.

[–] Aaaaaaaaaeeeee@alien.top 1 points 1 year ago (1 children)

No way, you're that one guy I uploaded the f16 airoboros for ! I was hoping you'd get the model and I think you did it :)

[–] FaustBargain@alien.top 1 points 1 year ago

sounds like me ;) Thanks!