Winter cleaning

[vwxyzjn]

• allow sft / dpo to evaluate intermediate checkpoints (though prob less important)
• oe-eval push to datalake automatically
• always push the models to beaker dataset, but allow people to disable it (useful for 405B: this way people are not always uploading hundreds of shards for a day) Add --try_auto_save_to_beaker arg #505
• refactor the submit jobs stuff. Everything should happen in mason. See https://allenai.slack.com/archives/C0836QPULRK/p1736353091821699
  • better caching stuff Add documentation on caching models. #504
• merge tokenization logic, and allow for pre-tokenization caching. #510
• in sft / dpo, always record the global batch size like done in ppo
• Bump dependencies uv2 #492