There's a ton of work in this area, and the reality is... it doesn't work for LLMs.
Moving from 900GB/sec GPU memory bandwidth with infiniband interconnects between nodes to 0.01-0.1GB/sec over the internet is brutal (1000x to 10000x slower...) This works for simple image classifiers, but I've never seen anything like a large language model be trained in a meaningful amount of time this way.
