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ReginaldIII t1_j053c4i wrote

Reply to comment by bacteriarealite in [Project] Run and fine-tune BLOOM-176B at home using a peer-to-peer network by hx-zero

I earnestly believe it solves problems that contain similar words. But it just does not present a practical solution to this problem.

We can't put the returned values on the blockchain. It just isn't possible to store them they are too big and too many, and there is no reason to store them, we only want to pass them onto the next worker or workers that immediately need them. We do care about fault tolerance to make sure they get to their destination.

So there's no way for this pool of blockchain nodes to form a consensus over the returned values being "correct" like this. We can't put the relevant information on the blockchain to allow it be compared.

What you end up with is just a classic non-blockchain vote by agreement system between workers of unknown trustworthiness. No blockchain needed.

You are correct that voting by consensus is needed, you just don't need all the rest of the things that turn that into a blockchain.

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[deleted] t1_j054kbq wrote

[deleted]

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ReginaldIII t1_j054n38 wrote

Please read my updated comment.

> I think the use case here is pretty obvious

With the greatest of respect, I don't.

> and I tried to just give some basic examples but I’m certainly not an expert and have not been involved in the types of trouble shooting required to get something like this working.

Also with the greatest of respect, I am an expert in this area, and have also worked with blockchains extensively.

I do not think blockchain is a "stream of buzzwords". I think it is the wrong tool to solve "this" problem.

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kaibee t1_j05omff wrote

> I earnestly believe it solves problems that contain similar words. But it just does not present a practical solution to this problem. > > > > We can't put the returned values on the blockchain. It just isn't possible to store them they are too big and too many, and there is no reason to store them, we only want to pass them onto the next worker or workers that immediately need them. We do care about fault tolerance to make sure they get to their destination. > > > > So there's no way for this pool of blockchain nodes to form a consensus over the returned values being "correct" like this. We can't put the relevant information on the blockchain to allow it be compared. > > > > What you end up with is just a classic non-blockchain vote by agreement system between workers of unknown trustworthiness. No blockchain needed. > > > > You are correct that voting by consensus is needed, you just don't need all the rest of the things that turn that into a blockchain.

This is basically solving a very similar problem. https://rendertoken.com/#intro

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ReginaldIII t1_j06mqeo wrote

In rendertoken's scenario we don't have a requirement on high throughput of one job feeding into another.

The individual units of work are expensive and long lived. Rendering a frame of a film takes roughly the same amount of time it did a few years ago, we just get higher fidelity output for that same render budget. All the frames can be processed lazily by the compute farm, and the results just go into a pool for later collection.

Because the collation of the results happens in a more offline fashion from the actual computation, you have time and resources to encode the results on a blockchain. Auditing that your requested work was processed is a desirable quality, and so a blockchain does provide a benefit.

In the case of distributed model training the scenario is different. We have high throughput of comparatively small chunks of work. Other than passing the results to the next immediate worker to do the next part of the computation, we have no desire (or storage capacity) to keep any of the intermediate results. Because we have high throughput of many small chunks a blockchain encoding these chunks would need a small proof of work and so would not be a reliable source of truth anyway.

Then consider that we don't even care about having an audit trail to prove historical chunks really were processed when we think they were. We only care about checking results are valid on the fly as we are doing the compute.

We just need a vote by agreement on the immediate results so they can be handed off to the next workers. Yes blockchains often have a vote by agreement part to how they decide what the actual state of the blockchain is, but we just need that part. We don't actually need the blockchain itself.

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bacteriarealite t1_j0561xo wrote

You don’t need to put any model information on the blockchain. The goal of the blockchain is that it’s creating a network of trust tied to computational work. All we want from the blockchain is to be able to say we trust this node and it’s providing work. There are many ways you can then go about setting that up and debate the nuanced details of what will work best. But the utility of blockchain is pretty simple - we want decentralized work, we want decentralized trust. Blockchain is the only technology that does that. In fact blockchain is really just a synonym for those two things. So on your first post when you questioned how we would be able to trust this decentralized work, the answer to that is simple - blockchain. The details past that have million dollar answers but the underlying principle is pretty straight forward.

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ReginaldIII t1_j056gyk wrote

Okay. We are going in circles now, and I've responded to these points at length.

The burden on you is to now flesh this idea out and show it can work in practice for this problem.

I will not be pursuing this avenue.

Good evening.

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bacteriarealite t1_j057m7a wrote

The burden on me was just to point out that when someone is looking for a way to create decentralized trust in a system of decentralized work that the solution is blockchain. My point in the first comment wasn’t to hash out all the nuanced details of how that would work in practice, I was just pointing out that if your looking to create trust in a decentralized system then the best (and honestly only) way to do that is blockchain.

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