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* ENH Improve speed of expanding LoRA scales

Resolves #11816

The following call proved to be a bottleneck when setting a lot of LoRA
adapters in diffusers:

https://github.com/huggingface/diffusers/blob/cdaf84a708eadf17d731657f4be3fa39d09a12c0/src/diffusers/loaders/peft.py#L482

This is because we would repeatedly call unet.state_dict(), even though
in the standard case, it is not necessary:

https://github.com/huggingface/diffusers/blob/cdaf84a708eadf17d731657f4be3fa39d09a12c0/src/diffusers/loaders/unet_loader_utils.py#L55



This PR fixes this by deferring this call, so that it is only run when
it's necessary, not earlier.

* Small fix

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Co-authored-by: Sayak Paul <spsayakpaul@gmail.com>

* feat: use exclude modules to loraconfig.

* version-guard.

* tests and version guard.

* remove print.

* describe the test

* more detailed warning message + shift to debug

* update

* update

* update

* remove test

* fix: lora unloading behvaiour

* fix

* update

* update

* add test

* address review comments

* update

* fixes

* change decorator order to fix tests

* try fix

* fight tests

* update

* update

* update

* update

* update

* user property instead

* disable onnx, mps, flax

* remove

fix

* support flux kontext

* make fix-copies

* add example

* add tests

* update docs

* update

* add note on integrity checker

* initial commit

* initial commit

* add readme section and fixes in the training script.

* add test

* rectify ckpt_id

* fix ckpt

* fixes

* change id

* update

* Update examples/dreambooth/train_dreambooth_lora_flux_kontext.py
Co-authored-by: Aryan <aryan@huggingface.co>

* Update examples/dreambooth/README_flux.md

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Co-authored-by: Aryan <aryan@huggingface.co>
Co-authored-by: linoytsaban <linoy@huggingface.co>
Co-authored-by: Linoy Tsaban <57615435+linoytsaban@users.noreply.github.com>

* support flux kontext

* make fix-copies

* add example

* add tests

* update docs

* update

* add note on integrity checker

* make fix-copies issue

* add copied froms

* make style

* update repository ids

* more copied froms

Signed-off-by: Liu, Kaixuan <kaixuan.liu@intel.com>

* add test for checking compile on different shapes.

* update

* update

* Apply suggestions from code review
Co-authored-by: Steven Liu <59462357+stevhliu@users.noreply.github.com>

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Co-authored-by: Steven Liu <59462357+stevhliu@users.noreply.github.com>

* [rfc][compile] compile method for DiffusionPipeline

* Apply suggestions from code review
Co-authored-by: Sayak Paul <spsayakpaul@gmail.com>

* Apply style fixes

* Update docs/source/en/optimization/fp16.md

* check

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Co-authored-by: Sayak Paul <spsayakpaul@gmail.com>
Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

* update

* update

* update

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Co-authored-by: Sayak Paul <spsayakpaul@gmail.com>

* post release v0.34.0

* code quality

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Co-authored-by: YiYi Xu <yixu310@gmail.com>

* adjust to get CI test cases passed on XPU
Signed-off-by: Liu, Kaixuan <kaixuan.liu@intel.com>

* fix format issue
Signed-off-by: Liu, Kaixuan <kaixuan.liu@intel.com>

* Apply style fixes

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Signed-off-by: Liu, Kaixuan <kaixuan.liu@intel.com>
Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
Co-authored-by: Aryan <aryan@huggingface.co>

skip instead of returning.

* update

* update

* update

* raise as early as possible in group offloading

* remove check from ModuleGroup

update

up

* minor cleanups in the lora docs.

* Apply suggestions from code review
Co-authored-by: Steven Liu <59462357+stevhliu@users.noreply.github.com>

* format docs

* fix copies

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Co-authored-by: Steven Liu <59462357+stevhliu@users.noreply.github.com>

Co-authored-by: Linoy Tsaban <57615435+linoytsaban@users.noreply.github.com>

update

model test updates

enable cpu offloading of new pipelines on XPU & use device agnostic empty to make pipelines work on XPU (#11671)

* commit 1
Signed-off-by: YAO Matrix <matrix.yao@intel.com>

* patch 2
Signed-off-by: YAO Matrix <matrix.yao@intel.com>

* Update pipeline_pag_sana.py

* Update pipeline_sana.py

* Update pipeline_sana_controlnet.py

* Update pipeline_sana_sprint_img2img.py

* Update pipeline_sana_sprint.py

* fix style
Signed-off-by: YAO Matrix <matrix.yao@intel.com>

* fix fat-thumb while merge conflict
Signed-off-by: YAO Matrix <matrix.yao@intel.com>

* fix ci issues
Signed-off-by: YAO Matrix <matrix.yao@intel.com>

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Signed-off-by: YAO Matrix <matrix.yao@intel.com>
Co-authored-by: Ilyas Moutawwakil <57442720+IlyasMoutawwakil@users.noreply.github.com>

* enable deterministic in bnb 4 bit tests
Signed-off-by: jiqing-feng <jiqing.feng@intel.com>

* fix 8bit test
Signed-off-by: jiqing-feng <jiqing.feng@intel.com>

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Signed-off-by: jiqing-feng <jiqing.feng@intel.com>

Fix dimensionality in `apply_rotary_emb` functions' comments.

draft

draft
Co-authored-by: Sayak Paul <spsayakpaul@gmail.com>

* draft

* feedback

* update

* feedback

* fix

* feedback

* feedback

* fix

* feedback

update

* start

* updates

* update

* update

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Co-authored-by: Sayak Paul <spsayakpaul@gmail.com>

* start implementing disk offloading in group.

* delete diff file.

* updates.patch

* offload_to_disk_path

* check if safetensors already exist.

* add test and clarify.

* updates

* update todos.

* update more docs.

* update docs

update

update