Training AI models might not need enormous data centres(economist.com) |
Training AI models might not need enormous data centres(economist.com) |
Even though our artificial training efficiency is worse now, likely to stay worse because we want to trade efficiency for faster training, and because we want to cram more knowledge into our training data than a human would be exposed to, it still seems likely to me that we'll get within orders of magnitude of this sooner or later.
Even if our training efficiency topped out at a hundred times worse than a biological system, that would be the energy equivalent of <100 tons of diesel fuel. Compared to raising and educating a human (and also considering this training can the be utilized for billions of queries before it becomes obsolete) that strikes me as a very reasonable cost (especially compared to the amounts of energy we wasted on cryptocurrency mining without blinking an eye...)
You can study and reproduce with your own training data right?
We could pass laws requiring models to demonstrate their training sets irregardless of how the training is distributed; and conversely if this is a community-led project, those also have copyright issues to deal with (wikipedia for example).
I suspect there's also a problem in that, e.g. ten million student essays about different pages of Harry Potter can each in isolation be justified by the right to quote small fragments for critical purposes, but the collection together isn't because it quotes an entire book series.
Copyright is intended to reward investment in creative works by giving sole license to distribute. It is not intended to create a monopoly on knowledge about the work.
If I can ask an LLM (or person!) “what’s the first sentence in Harry Potter?” And then “what’s the second sentence?” and so on, that does not mean they are distributing the work in competition with the rights holders.
We have gone way overboard with IP protections. The purpose of copyright is served when Rowling buys her 10th mansion. We do not need to further expand copyright to make it illegal to learn from a work or to remember it after reading.
New Training Technique for Highly Efficient AI Methods (2 points, 5 hours ago) https://news.ycombinator.com/item?id=42690664
DiLoCo: Distributed Low-Communication Training of Language Models (46 points, 1 year ago, 14 comments) https://news.ycombinator.com/item?id=38549337
The second article you linked indicates there will still be intense bandwidth requirements during training, shipping around gradient differentials.
What has changed in the past year? Is this technique looking better, worse, or the same?
Federated learning breaks the barrier to entry and expands the ecosystem allowing more participants to share compute and/or datasets for small players to train models.
DiLoCo introduced by Douillard minimizes communication overhead by averaging weight updates. What this article misses though is that despite this, each GPU in the distributed cluster still needs to have enough VRAM to load the entire copy of the model to complete the training process. That's where DisTrO comes in which even reduces further the inter-GPU communication using a decoupling technique (DeMo) that only shares the fast moving parts of the optimizer across the GPU cluster.
>And what if the costs could drop further still? The dream for developers pursuing truly decentralised ai is to drop the need for purpose-built training chips entirely. Measured in teraflops, a count of how many operations a chip can do in a second, one of Nvidia’s most capable chips is roughly as powerful as 300 or so top-end iPhones. But there are a lot more iPhones in the world than gpus. What if they (and other consumer computers) could all be put to work, churning through training runs while their owners sleep?"
This aligns with DisTrO techniques because, according to them it could also allow consumer devices like Desktop Gaming PCs to join the compute cluster and share workloads. Besides there's also an open-source implementation called exo that allows models to be split among idle local devices but it's only limited to inference.
Again might still be relevant since in the article it mentions that DiLoCo was able to make the model respond better when faced with instruction prompts or reasoning questions never encountered during pre-training. And Arthur seems to think test-time training will make his approach become the norm.
sources: DisTrO: https://github.com/NousResearch/DisTrO DeMo: https://arxiv.org/pdf/2411.19870 Exo: https://github.com/exo-explore/exo
I guess enormous is in the eye of the beholder.
However, in my naïvety, I wonder whether vastly simpler algorithms could be used to end up with similar results. Regular compression techniques work with speeds up to 700MB/s.
(edit: I may also not be accounting enough for using a pre-trained general model next to a fine tuned specialized model?)
There was a distributed Protein Folding project a couple decades ago.
I remember there was even Protein folding apps that could run on game consoles when not playing games.
But maybe Protein Folding code is more Parallelizable across machines, than AI models.
That's not exactly accurate. In the data parallel side of techniques, the Distributed Data Parallel (DDP) approach does require a fully copy of the model on each GPU. However there's also Fully Sharded Data Parallel (FSDP) which does not.
Similarly things like tensor parallelism (TP) split the model over GPUs, to the point where full layers are never in a single GPU anymore.
Combining multiple of the above is how huge foundation models are trained. Meta used 4d parallelism (FSDP + TP and pipeline/context parallelism) to train llama 405b.
I mean it reduces the communication overhead by more orders than DiLoCo.
An LLM trained on the addition and multiplication data develops circuits for addition and multiplication[1].
It stands to reason that LLM trained on human-produced data develop algorithms that try to approximate the data production process (within their computational limits).
> However, in my naïvety, I wonder whether vastly simpler algorithms could be used to end up with similar results.
True in terms of text, but not if you include video, audio, touch etc. Sure, one could argue that there is much less information content in video than their raw bytes, but even so, we spend many years building a world model as we play with tools, exist in the world and go to school. I don't deny humans are more efficient learners but people tend to forget this. Also, children are taught things in ascending order of difficulty, while with LLMs we just throw random pieces of text at it. There is sure to be a lot of progress in curriculum learning for AI models.
[0] https://the-decoder.com/openai-co-founder-explains-the-secre...
Perhaps, but it's more an example of the problem: something can be fine at small scale, but cause issues when everyone does it. Tragedy of the commons, but with words.
(From an even more extreme point of view, consider that an image generating AI trained on nothing but photographs taken from drones flying and androids walking all over the place would be able to create photo-realistic images of anything, irregardless of if even one single human artist's works end up in the training set, which in turn means the current concerns about "did the human artists agree to this use" will be quickly made irrelevant because there were none in the training set in the first place).
"Quantity has a quality all its own", whoever really said it first.
> Copyright is intended to reward investment in creative works by giving sole license to distribute. It is not intended to create a monopoly on knowledge about the work.
Sure, but laws change depending on economics. I can easily believe AI will lead to either much stronger or much weaker copyright laws.
Depends who is wielding the power when the change comes.
> If I can ask an LLM (or person!) “what’s the first sentence in Harry Potter?” And then “what’s the second sentence?” and so on, that does not mean they are distributing the work in competition with the rights holders.
Isn't that a description of how BitTorrent works? And The Pirate Bay is kinda infamous for "distributing the work in competition with the rights holders".
> We have gone way overboard with IP protections. The purpose of copyright is served when Rowling buys her 10th mansion. We do not need to further expand copyright to make it illegal to learn from a work or to remember it after reading.
I agree, and was already in favour of radical changes to copyright rules well before LLMs.
(That said, it's more complex because of how hit-driven lots of things are, which means that while nobody needs to defend Rowling's second billion, having looked at the distribution of book sales in the best-seller lists… most of them will/would have need/ed a second source of income to keep publishing).
Yes, but.
The human genome isn't that big (3.1 gigabases), and most of that is shared with other species that aren't anything like as intelligent — it's full of stuff that keeps us physically alive, lets us digest milk as adults, darkens our skin when exposed to too much UV so we don't get cancer, gives us (usually) four limbs with (usually) five digits that have keratin plates on their tips, etc.
That pre-training likely gives us innate knowledge of smiles and laughter, of the value judgment that pain is bad and that friendship is good, and (I suspect from my armchair) enough* of a concept of gender that when we hit puberty we're not all bisexual by default.
Also, there's nothing stopping someone from donating their genome to be used as a pre-training system, if we could decode the genome well enough to map out pre-training like that.
* which may be some proxy for it, e.g. "arousal = ((smell exogenous sex hormone) and (exogenous hormone xor endogenous hormone))", which then gets used to train the rest of our brains for specific interests — evolution is full of hack jobs like that
To make this data 'actionable' for a synthetic intelligence you'd need to functionally replicate the contributions of the intrauterine environment to development, and lastly simulate the social and physical environment. This can't be 'decoded' in the way you implicitly suggest - since it's decompression is computationally irreducible. These are dynamic processes that need to be undergone in order to create the fully developed individual.
[1] https://www.bbc.com/future/article/20230210-the-man-whose-ge...
Yes. But that is not part of the training cost; this is basically the equivalent to figuring out a suitable artificial neural net architecture and hyperparameter tuning in general. That is not energy cost that you pay per training run, but fixed cost overhead instead.
You raise a good point that when doing artificial training, the "environment" has to be provisioned as well (i.e. feeding audio/visual/text input in some way to do the training), but here I would argue that in energy terms, that is a rather small overhead (less than an order of magnitude) because our digital information storage/transmission capabilities are frankly insane compared to a human already (and reasonably efficient as well).
Knowing the weights without knowing the full graph of the model they're used in, just the endpoints.
There's a lot of valid stuff in what you say, I am aware I'm glossing over a lot of challenges to get a copy of a human — to what extent is e.g. the microbiome even contributing to our intelligence, vs. being several hundred different parasites that share a lot of DNA with each other and which happen to accidentally also sometimes give us useful extras? It's hard work telling which is which — but my claim is that the nature and scope of such work itself still allows us to say, as per one of the parent comments:
> I think it's important to remember that we know neural networks can be trained to a very useful state from scratch for 24 GJ: This is 25 W for 30 years (or 7000 kWh, or a good half ton of diesel fuel), which is what a human brain consumes until adulthood.
If this were a 100m sprint, then I would agree with you essentially saying that we don't even know which country the starting blocks are in, but I am still saying that despite that we know the destination can be reached from the starting blocks in 10 seconds.
All of this makes it very poorly suited to a collection of heterogeneous compute connected via the internet, which wants a large chunk of mostly independent tasks which have a high compute cost but relatively low bandwidth requirements.
You need enough memory to run the unquantized model for training, then stream the training data through - that part is what is done in parallel, farming out different bits of training data to each machine.
That could be a factor that unites enough people to donate their compute time to build diffusion models. At least if it was easy enough to set up.
Or the large amounts of community efforts (not exactly crowd sourced though) for diffusion fine-tunes and tools! Pony XL, and other uncensored models, for example. I haven't kept up with the rest, because there's just too much.
https://www.microsoft.com/en-us/research/blog/zero-deepspeed...
The communications overhead of doing this over the internet might be unworkable though.