Can someone ELI5 what this may make possible that wasn't possible before? Does this mean I can buy a handful of 4090s and use it in lieu of an h100? Just adding the memory together?
Hacked Nvidia 4090 GPU driver to enable P2P
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Re: Hacked Nvidia 4090 GPU driver to enable P2P
#92I wish more hardware companies would publish more documentation and let the community figure out the rest, sort of like what happened to the original IBM VGA (look up "Mode X" and the other non-BIOS modes the hardware is actually capable of - even 800x600x16!) Sadly it seems the majority of them would rather tightly control every aspect of their products' usage since they can then milk the userbase for more $$$, but…
Then they couldn't charge different customers different amounts for the same HW. It's not a win for everyone.
Re: Hacked Nvidia 4090 GPU driver to enable P2P
#93I was always fascinated by George Hotz's hacking abilities. Inspired me a lot for my personal projects.
Re: Hacked Nvidia 4090 GPU driver to enable P2P
#94Incredible! I'd been wondering if this was possible. Now the only thing standing in the way of my 4x4090 rig for local LLMs is finding time to build it. With tensor parallelism, this will be both massively cheaper and faster for inference than a H100 SXM. I still don't understand why they went with 6 GPUs for the tinybox. Many things will only function well with 4 or 8 GPUs. It seems like the worst of both worlds now…
Re: Hacked Nvidia 4090 GPU driver to enable P2P
#95Re: Hacked Nvidia 4090 GPU driver to enable P2P
#96Incredible! I'd been wondering if this was possible. Now the only thing standing in the way of my 4x4090 rig for local LLMs is finding time to build it. With tensor parallelism, this will be both massively cheaper and faster for inference than a H100 SXM. I still don't understand why they went with 6 GPUs for the tinybox. Many things will only function well with 4 or 8 GPUs. It seems like the worst of both worlds now…
Besides the goal was to run a 70b FP16 model (requiring roughly 140GB VRAM). 6*24GB = 144GB
Re: Hacked Nvidia 4090 GPU driver to enable P2P
#97Re: Hacked Nvidia 4090 GPU driver to enable P2P
#98Earlier quoted context omitted.
Looks like we're only a few years away from a bona fide cyberpunk dystopia, in which only governments and megacorps are allowed to use AI, and hackers working on their own hardware face regular raids from the authorities.
I find it baffling that ideas like "govern compute" are even taken seriously. What the hell has happened to the ideals of freedom?! Does the government own us or something?
I think most people who are strongly pro-AI/pro-acceleration - or, at any rate, not anti-AI - believe that either (A) there is no control problem (B) it will be solved (C) AI won't become independent and agentic (i.e. it won't face evolutionary pressure towards survival) or (D) AI capabilities will hit a ceiling soon (more so than just not becoming agentic).
If you strongly believe, or take as a prior, one of those things, then it makes sense to push the gas as hard as possible.
If you hold the opposite opinions, then it makes perfect sense to push the brakes as hard as possible, which is why "govern compute" can make sense as an idea.
Re: Hacked Nvidia 4090 GPU driver to enable P2P
#99Incredible! I'd been wondering if this was possible. Now the only thing standing in the way of my 4x4090 rig for local LLMs is finding time to build it. With tensor parallelism, this will be both massively cheaper and faster for inference than a H100 SXM. I still don't understand why they went with 6 GPUs for the tinybox. Many things will only function well with 4 or 8 GPUs. It seems like the worst of both worlds now…
A macbook is cheaper though
Very few people that would consider an H100/A100/A800 are going to be cross-shopping a macbook pro for their workloads.