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The RAM shortage comes for us all

jeffgeerling.com

221–230 of 416 posts

Re: The RAM shortage comes for us all

#221

anybody care to speculate on how long this is likely to last? is this a blip that will resolve itself in six months, or is this demand sustainable and we are talking years to build up new manufacturing facilities to meet demand?

Pure speculation, nobody can say say for sure, but my guess is 2-3 years.

Re: The RAM shortage comes for us all

#223

I know this is mostly paranoid thinking on my behalf, but it almost feels like this is a conscious effort to attempt to destroy "personal" computing. I've been a huge advocate for local, open, generative AI as the best resistance to massive take-over by large corporations controlling all of this content creation. But even as it is (or "was" I should say), running decent models at home is prohibitively expensive for m…

I share your paranoia.

My kids use personal computing devices for school, but their primary platform (just like their friends) is locked-down phones. Combining that usage pattern with business incentives to lock users into walled gardens, I kind of worry we are backing into the destruction of personal computing.

Re: The RAM shortage comes for us all

#224
post #192

Earlier quoted context omitted.

large language models are large and must be loaded into memory to train or to use for inference if we want to keep them fast. older models like gpt3 have around 175 billion parameters. at float32s that comes out to something like 700GB of memory. newer models are even larger. and openai wants to run them as consumer web services.

I mean, I know that much. The numbers still don't make sense to me. How is my internal model this wrong? For one, if this was about inference, wouldn't the bottleneck be the GPU computation part?

Concurrency?

Suppose some some parallelized, distributed task requires 700GB of memory (I don't know if it does or does not) per node to accomplish, and that speed is a concern.

A singular pile of memory that is 700GB is insufficient not because it lacks capacity, but instead because it lacks scalability. That pile is only enough for 1 node.

If more nodes were added to increase speed but they all used that same single 700GB pile, then RAM bandwidth (and latency) gets in the way.

Re: The RAM shortage comes for us all

#226
post #61

Every shortage is followed by a glut. Wait and see for RAM prices to go way down. This will happen because RAM makers are racing to produce units to reap profits from the higher price. That overproduction will cause prices to crash.

They aren't overproducing consumer modules, they're actively cutting production of those. They're producing datacenter/AI specific form factors that won't be compatible with consumer hardware.

Re: The RAM shortage comes for us all

#227
post #145
post #13

I think the OpenAI deal to lock wafers was a wonderful coup. OpenAI is more and more losing ground against the regularity[0] of the improvements coming from Anthropic, Google and even the open weights models. By creating a chock point at the hardware level, OpenAI can prevent the competition from increasing their reach because of the lack of hardware. [0]: For me this is really an important part of working with Claud…

Please explain to me like I am five: Why does OpenAI need so much RAM? 2024 production was (according to openai/chatgpt) 120 billion gigabytes. With 8 billion humans that's about 15 GB per person.

The conspiracy theory (which, to be clear, may be correct) is that they don't actually need so much RAM, but they know they and all their competitors do still need quite a bit of RAM. By buying up all the memory supply they can, for a while, keep everyone else from being able to add compute capacity/grow their business/compete.

Re: The RAM shortage comes for us all

#228

This reminds me of the recent LaurieWired video presenting a hypothetical of, "what if we stopped making CPUs": https://www.youtube.com/watch?v=L2OJFqs8bUk Spoiler, but the answer is basically that old hardware rules the day because it lasts longer and is more reliable of timespans of decades. DDR5 32GB is currently going for ~$330 on Amazon DDR4 32GB is currently going for ~$130 on Amazon DDR3 32GB is currently goin…

[deleted]

Re: The RAM shortage comes for us all

#229
post #154

Earlier quoted context omitted.

I made a website: https://ontario-chips.vercel.app/

I suppose it would help if I could read the whole page: I cannot see the left few characters on Firefox on Android. What did you make this with? Note that fixing the site won't increase my chances of donating, I'm from the ASML country ;)

That's annoying... I made it with Next.js and Tailwind CSS tho. Hosted on Vercel.

Re: The RAM shortage comes for us all

#230
post #92

Earlier quoted context omitted.

Micron has said they're not scaling up production. Presumably they're afraid of being left holding the bag when the bubble does pop

Why are they building a foundry in Idaho? https://www.micron.com/us-expansion/id

I mean it says on the page

>help ensure U.S. leadership in memory development and manufacturing, underpinning a national supply chain and R&D ecosystem.

It's more political than supply based

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