This is a small patch release of PEFT that should:
Full Changelog: https://github.com/huggingface/peft/compare/v0.8.0...v0.8.1
Parameter-efficient fine-tuning (PEFT) for cross-task generalization consists of pre-training adapters on a multi-task training set before few-shot adaptation to test tasks. Polytropon [Ponti et al., 2023] (𝙿𝚘𝚕𝚢) jointly learns an inventory of adapters and a routing function that selects a (variable-size) subset of adapters for each task during both pre-training and few-shot adaptation. To put simply, you can think of it as Mixture of Expert Adapters. 𝙼𝙷𝚁 (Multi-Head Routing) combines subsets of adapter parameters and outperforms 𝙿𝚘𝚕𝚢 under a comparable parameter budget; by only fine-tuning the routing function and not the adapters (𝙼𝙷𝚁-z) they achieve competitive performance with extreme parameter efficiency.
Now, you can specify all-linear to target_modules param of LoraConfig to target all the linear layers which has shown to perform better in QLoRA paper than only targeting query and valuer attention layers
Embedding layers of base models are now automatically saved when the embedding layers are resized when fine-tuning with PEFT approaches like LoRA. This enables extending the vocabulary of tokenizer to include special tokens. This is a common use-case when doing the following:
New option use_rslora in LoraConfig. Use it for ranks greater than 32 and see the increase in fine-tuning performance (same or better performance for ranks lower than 32 as well).
all-linear flag by @SumanthRH in https://github.com/huggingface/peft/pull/1357Tests] Add bitsandbytes installed from source on new docker images by @younesbelkada in https://github.com/huggingface/peft/pull/1275bnb] Add bnb nightly workflow by @younesbelkada in https://github.com/huggingface/peft/pull/1282bnb-nightly] Address final comments by @younesbelkada in https://github.com/huggingface/peft/pull/1287prepare_inputs_for_generation logic for Prompt Learning methods by @pacman100 in https://github.com/huggingface/peft/pull/1352all-linear flag by @SumanthRH in https://github.com/huggingface/peft/pull/1357Full Changelog: https://github.com/huggingface/peft/compare/v0.7.1...v0.8.0
This is a small patch release of PEFT that should handle:
Full Changelog: https://github.com/huggingface/peft/compare/v0.7.0...v0.7.1
merge (#1132)"gaussian" (#1189)adapter_model.bin, calling save_pretrained now creates adapter_model.safetensors. Safetensors have numerous advantages over pickle files (which is the PyTorch default format) and well supported on Hugging Face Hub.add_weighted_adapter with the option combination_type="linear", the scaling of the adapter weights is now performed differently, leading to improved results.peft.lora.Linear is no longer a subclass of nn.Linear, so isinstance checks may need updating). Also, to retrieve the original weight of an adapted layer, now use self.get_base_layer().weight, not self.weight (same for bias).As always, a bunch of small improvements, bug fixes and doc improvements were added. We thank all the external contributors, both new and recurring. Below is the list of all changes since the last release.
Docker] Update Dockerfile to force-use transformers main by @younesbelkada in https://github.com/huggingface/peft/pull/1085core] Fix safetensors serialization for shared tensors by @younesbelkada in https://github.com/huggingface/peft/pull/1101id_tensor_storage by @younesbelkada in https://github.com/huggingface/peft/pull/1116ModulesToSaveWrapper when using Low-level API by @younesbelkada in https://github.com/huggingface/peft/pull/1112adapter_names when calling merge by @younesbelkada in https://github.com/huggingface/peft/pull/1132Tests] Fix daily CI by @younesbelkada in https://github.com/huggingface/peft/pull/1136core / LoRA] Add adapter_names in bnb layers by @younesbelkada in https://github.com/huggingface/peft/pull/1139Tests] Do not stop tests if a job failed by @younesbelkada in https://github.com/huggingface/peft/pull/1141huggingface_hub.file_exists instead of custom helper by @Wauplin in https://github.com/huggingface/peft/pull/1145add_weighted_adapter method by @pacman100 in https://github.com/huggingface/peft/pull/1169Tests] Migrate to AWS runners by @younesbelkada in https://github.com/huggingface/peft/pull/1185modules_to_save is specified and multiple adapters are being unloaded by @pacman100 in https://github.com/huggingface/peft/pull/1137Full Changelog: https://github.com/huggingface/peft/compare/v0.6.2...v0.7.0
The following contributors have made significant changes to the library over the last release:
@alexrs
@callanwu
@elyxlz
@lukaskuhn-lku
@okotaku
@yxli2123
@zhangsheng377
This patch release refactors the adapter deletion API and fixes to ModulesToSaveWrapper when using Low-level API.
ModulesToSaveWrapper when using Low-level APIModulesToSaveWrapper when using Low-level API by @younesbelkada in https://github.com/huggingface/peft/pull/1112id_tensor_storage by @younesbelkada in https://github.com/huggingface/peft/pull/1116ModulesToSaveWrapper when using Low-level API by @younesbelkada in https://github.com/huggingface/peft/pull/1112Full Changelog: https://github.com/huggingface/peft/compare/v0.6.1...v0.6.2
This patch release fixes the compatbility issues with Adaptation Prompt that users faced with transformers 4.35.0. Moreover, it fixes an issue with token classification PEFT models when saving them using safetensors
core] Fix safetensors serialization for shared tensors by @younesbelkada in https://github.com/huggingface/peft/pull/1101Docker] Update Dockerfile to force-use transformers main by @younesbelkada in https://github.com/huggingface/peft/pull/1085Full Changelog: https://github.com/huggingface/peft/compare/v0.6.0...v0.6.1
🧨 Diffusers now leverage PEFT as a backend for LoRA inference for Stable Diffusion models (#873, #993, #961). Relevant PRs on 🧨 Diffusers are https://github.com/huggingface/diffusers/pull/5058, https://github.com/huggingface/diffusers/pull/5147, https://github.com/huggingface/diffusers/pull/5151 and https://github.com/huggingface/diffusers/pull/5359. This helps in unlocking a vast number of practically demanding use cases around adapter-based inference 🚀. Now you can do the following with easy-to-use APIs and it supports different checkpoint formats (Diffusers format, Kohya format ...):
For details, refer to the documentation at Inference with PEFT.
r=0). This used to be possible, in which case the adapter was ignored.As always, a bunch of small improvements, bug fixes and doc improvements were added. We thank all the external contributors, both new and recurring. Below is the list of all changes since the last release.
CI] Pin diffusers by @younesbelkada in https://github.com/huggingface/peft/pull/936LoRA] Add scale_layer / unscale_layer by @younesbelkada in https://github.com/huggingface/peft/pull/935tests] add transformers & diffusers integration tests by @younesbelkada in https://github.com/huggingface/peft/pull/962safe_merge option in merge by @younesbelkada in https://github.com/huggingface/peft/pull/1001core / LoRA] Add safe_merge to bnb layers by @younesbelkada in https://github.com/huggingface/peft/pull/1009LoRA] Revert original behavior for scale / unscale by @younesbelkada in https://github.com/huggingface/peft/pull/1029LoRA] Raise error when adapter name not found in set_scale by @younesbelkada in https://github.com/huggingface/peft/pull/1034core] Fix use_reentrant issues by @younesbelkada in https://github.com/huggingface/peft/pull/1036tests] Update Dockerfile to use cuda 12.2 by @younesbelkada in https://github.com/huggingface/peft/pull/1050Full Changelog: https://github.com/huggingface/peft/compare/v0.5.0...v0.6.0
Now, you can finetune GPTQ quantized models using PEFT. Here are some examples of how to use PEFT with a GPTQ model: colab notebook and finetuning script.
Enables users and developers to use PEFT as a utility library, at least for injectable adapters (LoRA, IA3, AdaLoRA). It exposes an API to modify the model in place to inject the new layers into the model.
core] PEFT refactor + introducing inject_adapter_in_model public method by @younesbelkada https://github.com/huggingface/peft/pull/749Low-level-API] Add docs about LLAPI by @younesbelkada in https://github.com/huggingface/peft/pull/836Leverage the support for more devices for loading and fine-tuning PEFT adapters.
Stable support and new ways of merging multiple LoRAs. There are currently 3 ways of merging loras supported: linear, svd and cat.
Llama2] Add disabling TP behavior by @younesbelkada in https://github.com/huggingface/peft/pull/728Patch] patch trainable params for 4bit layers by @younesbelkada in https://github.com/huggingface/peft/pull/733AdaLora] Fix adalora inference issue by @younesbelkada in https://github.com/huggingface/peft/pull/745ModulesToSave] add correct hook management for modules to save by @younesbelkada in https://github.com/huggingface/peft/pull/755core] PEFT refactor + introducing inject_adapter_in_model public method by @younesbelkada in https://github.com/huggingface/peft/pull/749Docker] Fix gptq dockerfile by @younesbelkada in https://github.com/huggingface/peft/pull/835Tests] Add 4bit slow training tests by @younesbelkada in https://github.com/huggingface/peft/pull/834Low-level-API] Add docs about LLAPI by @younesbelkada in https://github.com/huggingface/peft/pull/836Full Changelog: https://github.com/huggingface/peft/compare/v0.4.0...v0.5.0
QLoRA uses 4-bit quantization to compress a pretrained language model. The LM parameters are then frozen and a relatively small number of trainable parameters are added to the model in the form of Low-Rank Adapters. During finetuning, QLoRA backpropagates gradients through the frozen 4-bit quantized pretrained language model into the Low-Rank Adapters. The LoRA layers are the only parameters being updated during training. For more details read the blog Making LLMs even more accessible with bitsandbytes, 4-bit quantization and QLoRA
core] Protect 4bit import by @younesbelkada in https://github.com/huggingface/peft/pull/480core] Raise warning on using prepare_model_for_int8_training by @younesbelkada in https://github.com/huggingface/peft/pull/483To make fine-tuning more efficient, IA3 (Infused Adapter by Inhibiting and Amplifying Inner Activations) rescales inner activations with learned vectors. These learned vectors are injected into the attention and feedforward modules in a typical transformer-based architecture. These learned vectors are the only trainable parameters during fine-tuning, and thus the original weights remain frozen. Dealing with learned vectors (as opposed to learned low-rank updates to a weight matrix like LoRA) keeps the number of trainable parameters much smaller. For more details, read the paper Few-Shot Parameter-Efficient Fine-Tuning is Better and Cheaper than In-Context Learning
Addition of PeftModelForQuestionAnswering and PeftModelForFeatureExtraction classes to support QA and Feature Extraction tasks, respectively. This enables exciting new use-cases with PEFT, e.g., LoRA for semantic similarity tasks.
Introduces a new paradigm, AutoPeftModelForxxx intended for users that want to rapidly load and run peft models.
from peft import AutoPeftModelForCausalLM
peft_model = AutoPeftModelForCausalLM.from_pretrained("ybelkada/opt-350m-lora")
AutoPeftModelForxxx by @younesbelkada in https://github.com/huggingface/peft/pull/694Not a transformer model, no problem, we have got you covered. PEFT now enables the usage of LoRA with custom models.
Improvements to add_weighted_adapter method to support SVD for combining multiple LoRAs when creating new LoRA.
New utils such as unload and delete_adapter providing users much better control about how they deal with the adapters.
PEFT is very extensible and easy to use for performing DreamBooth of Stable Diffusion. Community has added conversion scripts to be able to use PEFT models with Civitai/webui format and vice-versa.
CI] Fix CI - pin urlib by @younesbelkada in https://github.com/huggingface/peft/pull/402Tests] Add soundfile to docker images by @younesbelkada in https://github.com/huggingface/peft/pull/401core] Protect 4bit import by @younesbelkada in https://github.com/huggingface/peft/pull/480core] Raise warning on using prepare_model_for_int8_training by @younesbelkada in https://github.com/huggingface/peft/pull/483core] Add gradient checkpointing check by @younesbelkada in https://github.com/huggingface/peft/pull/404LoRA] Allow applying LoRA at different stages by @younesbelkada in https://github.com/huggingface/peft/pull/429Llama-Adapter] fix half precision inference + add tests by @younesbelkada in https://github.com/huggingface/peft/pull/456core] Add safetensors integration by @younesbelkada in https://github.com/huggingface/peft/pull/553core] Fix config kwargs by @younesbelkada in https://github.com/huggingface/peft/pull/561openai/whisper-large-v2 by @alvarobartt in https://github.com/huggingface/peft/pull/563get_peft_model by @samsja in https://github.com/huggingface/peft/pull/566core] Correctly passing the kwargs all over the place by @younesbelkada in https://github.com/huggingface/peft/pull/575test] Adds more CI tests by @younesbelkada in https://github.com/huggingface/peft/pull/586tests] Fix dockerfile by @younesbelkada in https://github.com/huggingface/peft/pull/608core] Add adapter_name in get_peft_model by @younesbelkada in https://github.com/huggingface/peft/pull/610core] Stronger import of bnb by @younesbelkada in https://github.com/huggingface/peft/pull/605Adalora] Add adalora 4bit by @younesbelkada in https://github.com/huggingface/peft/pull/598AdaptionPrompt] Add 8bit + 4bit support for adaption prompt by @younesbelkada in https://github.com/huggingface/peft/pull/604PeftModel.disable_adapter by @ain-soph in https://github.com/huggingface/peft/pull/644AutoPeftModelForxxx by @younesbelkada in https://github.com/huggingface/peft/pull/694Feature] Save only selected adapters for LoRA by @younesbelkada in https://github.com/huggingface/peft/pull/705Auto] Support AutoPeftModel for custom HF models by @younesbelkada in https://github.com/huggingface/peft/pull/707core] Better hub kwargs management by @younesbelkada in https://github.com/huggingface/peft/pull/712Full Changelog: https://github.com/huggingface/peft/compare/v0.3.0...v0.4.0
The following contributors have made significant changes to the library over the last release:
@TimDettmers
@SumanthRH
@kovalexal
@sywangyi
@aarnphm
@martin-liu
@thomas-schillaci
With task guides, conceptual guides, integration guides, and code references all available at your fingertips, 🤗 PEFT's docs (found at https://huggingface.co/docs/peft) provide an insightful and easy-to-follow resource for anyone looking to how to use 🤗 PEFT. Whether you're a seasoned pro or just starting out, PEFT's documentation will help you to get the most out of it.
Comprised of both unit and integration tests, it rigorously tests core features, examples, and various models on different setups, including single and multiple GPUs. This commitment to testing helps ensure that PEFT maintains the highest levels of correctness, usability, and performance, while continuously improving in all areas.
CI] Add ci tests by @younesbelkada in https://github.com/huggingface/peft/pull/203CI] Add more ci tests by @younesbelkada in https://github.com/huggingface/peft/pull/223tests] Adds more tests + fix failing tests by @younesbelkada in https://github.com/huggingface/peft/pull/238tests] Adds GPU tests by @younesbelkada in https://github.com/huggingface/peft/pull/256tests] add slow tests to GH workflow by @younesbelkada in https://github.com/huggingface/peft/pull/304core] Better log messages by @younesbelkada in https://github.com/huggingface/peft/pull/366PEFT just got even more versatile with its new Multi Adapter Support! Now you can train and infer with multiple adapters, or even combine multiple LoRA adapters in a weighted combination. This is especially handy for RLHF training, where you can save memory by using a single base model with multiple adapters for actor, critic, reward, and reference. And the icing on the cake? Check out the LoRA Dreambooth inference example notebook to see this feature in action.
PEFT just got even better, thanks to the contributions of the community! The AdaLoRA method is one of the exciting new additions. It takes the highly regarded LoRA method and improves it by allocating trainable parameters across the model to maximize performance within a given parameter budget. Another standout is the Adaption Prompt method, which enhances the already popular Prefix Tuning by introducing zero init attention.
Good news for LoRA users! PEFT now allows you to merge LoRA parameters into the base model's parameters, giving you the freedom to remove the PEFT wrapper and apply downstream optimizations related to inference and deployment. Plus, you can use all the features that are compatible with the base model without any issues.
utils] add merge_lora utility function by @younesbelkada in https://github.com/huggingface/peft/pull/227core] Fix peft multi-gpu issue by @younesbelkada in https://github.com/huggingface/peft/pull/145CI] Add ci tests by @younesbelkada in https://github.com/huggingface/peft/pull/203main by @younesbelkada in https://github.com/huggingface/peft/pull/224CI] Add more ci tests by @younesbelkada in https://github.com/huggingface/peft/pull/223utils] add merge_lora utility function by @younesbelkada in https://github.com/huggingface/peft/pull/227core] Fix offload issue by @younesbelkada in https://github.com/huggingface/peft/pull/248Automation] Add stale bot by @younesbelkada in https://github.com/huggingface/peft/pull/247Automation] Update stale.py by @younesbelkada in https://github.com/huggingface/peft/pull/254tests] Adds more tests + fix failing tests by @younesbelkada in https://github.com/huggingface/peft/pull/238tests] Adds GPU tests by @younesbelkada in https://github.com/huggingface/peft/pull/256test] Add Dockerfile by @younesbelkada in https://github.com/huggingface/peft/pull/278tests] add CI training tests by @younesbelkada in https://github.com/huggingface/peft/pull/311merge_and_unload when having additional trainable modules by @pacman100 in https://github.com/huggingface/peft/pull/322pip caching to CI by @SauravMaheshkar in https://github.com/huggingface/peft/pull/314tests] add slow tests to GH workflow by @younesbelkada in https://github.com/huggingface/peft/pull/304core] Better log messages by @younesbelkada in https://github.com/huggingface/peft/pull/366try and finally in disable_adapter() to catch exceptions by @mukobi in https://github.com/huggingface/peft/pull/368CI] Fix nightly CI issues by @younesbelkada in https://github.com/huggingface/peft/pull/375The following contributors have made significant changes to the library over the last release:
@QingruZhang
@yeoedward
@Splo2t
We tested PEFT on @OpenAI's Whisper Large model and got: i) 5x larger batch sizes ii) Less than 8GB GPU VRAM iii) Best part? Almost no degredation to WER 🤯
Without PEFT:
With PEFT:
prepare_for_int8_training utilityThis utility enables preprocessing the base model to be ready for INT8 training.
core] add prepare_model_for_training by @younesbelkada in https://github.com/huggingface/peft/pull/85core] Some changes with prepare_model_for_training & few fixes by @younesbelkada in https://github.com/huggingface/peft/pull/105disable_adapter() context managerEnables to disable adapter layers to get the outputs from the frozen base models. An exciting application of this feature allows only a single model copy to be used for policy model and reference model generations in RLHF.
core] add prepare_model_for_training by @younesbelkada in https://github.com/huggingface/peft/pull/85bnb] add flan-t5 example by @younesbelkada in https://github.com/huggingface/peft/pull/86prepare_model_for_training flexible by @pacman100 in https://github.com/huggingface/peft/pull/90bnb optional by @pacman100 in https://github.com/huggingface/peft/pull/97core] Some changes with prepare_model_for_training & few fixes by @younesbelkada in https://github.com/huggingface/peft/pull/105EleutherAI/gpt-neox-20b to support matrix by @pacman100 in https://github.com/huggingface/peft/pull/109core] Fix autocast issue by @younesbelkada in https://github.com/huggingface/peft/pull/121prepare_for_int8_training by @pacman100 in https://github.com/huggingface/peft/pull/127pyproject.toml by @SauravMaheshkar in https://github.com/huggingface/peft/pull/125The following contributors have made significant changes to the library over the last release:
Full Changelog: https://github.com/huggingface/peft/compare/v0.1.0...v0.2.0
Initial release of 🤗 PEFT. Checkout the main README to learn more about it!