This is an automated archive made by the Lemmit Bot.

The original was posted on /r/stablediffusion by /u/terminusresearchorg on 2024-10-01 21:02:31+00:00.

Performance

• Improved launch speed for large datasets (>1M samples)
• Improved speed for quantising on CPU
• Optional support for directly quantising on GPU near-instantly (--quantize_via)

Compatibility

• SDXL, SD1.5 and SD2.x compatibility with LyCORIS training
• Updated documentation to make multiGPU configuration a bit more obvious.
• Improved support for torch.compile(), including automatically disabling it when eg. fp8-quanto is enabled
  • Enable via accelerate config or config/config.env via TRAINER_DYNAMO_BACKEND=inductor
• TorchAO for quantisation as an alternative to Optimum Quanto for int8 weight-only quantisation (int8-torchao)
• f8uz-quanto, a compatibility level for AMD ROCm users to experiment with FP8 training dynamics
• Support for multigpu PEFT LoRA training with Quanto enabled (not fp8-quanto)
  • Previously, only LyCORIS would reliably work with quantised multigpu training sessions.
• Ability to quantise models when full-finetuning, without warning or error. Previously, this configuration was blocked. Your mileage may vary, it's an experimental configuration.

Integrations

• Images now get logged to tensorboard (thanks u/anhi)
• FastAPI endpoints for integrations (undocumented)
• "raw" webhook type that sends a large number of HTTP requests containing events, useful for push notification type service

Optims

• SOAP optimiser support
  • uses fp32 gradients, nice and accurate but uses more memory than other optims, by default slows down every 10 steps as it preconditions
• New 8bit and 4bit optimiser options from TorchAO (ao-adamw8bit, ao-adamw4bit etc)

Schnell

Recently we discovered that training LyCORIS LoKr on Flux.1 Dev works perfectly fine on Flux.1 Schnell at just 4 steps, and that the problems of transferring it over are specific to LoRA.

No special training is needed, other than to just train on Dev instead of Schnell.

The release:

The quickstart:

Some docs have been updated for v1.1, mostly OPTIONS.md and the FLUX quickstart.