feat: Enable LoRA saving only for non MoE linear layers training with kernels. #530

willmj · 2025-04-17T00:02:27Z

Description of the change

A more limited version of #523 to enable LoRA but explicitly block off router linear and expert layers.

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I have added >=1 unit test(s) for every new method I have added.
I have ensured all unit tests pass

Signed-off-by: Will Johnson <[email protected]>

github-actions · 2025-04-17T00:02:39Z

Thanks for making a pull request! 😃
One of the maintainers will review and advise on the next steps.

Signed-off-by: Will Johnson <[email protected]>

tests/test_sft_trainer.py

kmehant · 2025-04-18T04:54:40Z

tuning/config/acceleration_configs/fast_moe.py

+                        model = self.trainer.model
+                        if hasattr(model, "module"):
+                            model = model.module


is this needed for non lora use case? since after this step it would directly reach the below block

else: model.config.save_pretrained(hf_converted_output_dir)

It's needed to determine if there is a peft config for the following if statement, but in fine-tuning case this if statement should be false

tuning/sft_trainer.py

kmehant · 2025-04-18T05:04:29Z

@willmj thanks for diligently taking my inputs, after addressing my comments, I request you to run all tests related to moe kernels on your local setup and paste screenshots here for record. Thanks, appreciate this PR!

Signed-off-by: Will Johnson <[email protected]>

tuning/sft_trainer.py

Signed-off-by: Will Johnson <[email protected]>

fabianlim · 2025-04-18T18:37:48Z

tuning/sft_trainer.py

            model, train_args, modifiable_args=(peft_config,)
        )
+        # For LoRa ScatterMoE, if expert layers are included, disable grad
+        if peft_config is not None:


I think its better to just do an instance check using ScatterMoE and then freeze everything inside.

maybe you should put a comment that this is a workaround, and in the future where ScatterMoE loras can be tuned, this code needs to be removed.

Signed-off-by: Will Johnson <[email protected]>

fabianlim

Since @kmehant is not around I approve it. but TBH im not that familiar with the recent updates in this repo. But overall looks ok. Just one more comment

fabianlim · 2025-04-21T13:28:25Z

tuning/sft_trainer.py

            model, train_args, modifiable_args=(peft_config,)
        )
+        # For LoRa ScatterMoE, if expert layers are included, disable grad
+        if peft_config is not None:


maybe you should put a comment that this is a workaround, and in the future where ScatterMoE loras can be tuned, this code needs to be removed.

Signed-off-by: Will Johnson <[email protected]>

… kernels. (#530) * save peft Signed-off-by: Will Johnson <[email protected]> * post process hf converted dir Signed-off-by: Will Johnson <[email protected]> * fix: convert hf converted checkpoint Signed-off-by: Will Johnson <[email protected]> * lora config Signed-off-by: Will Johnson <[email protected]> * save adapter config Signed-off-by: Will Johnson <[email protected]> * fix: add input linear and output linear to target modules Signed-off-by: Will Johnson <[email protected]> * fix: extend instead of append Signed-off-by: Will Johnson <[email protected]> * fix: if hasattr peft config Signed-off-by: Will Johnson <[email protected]> * fix: remove unneeded target modules Signed-off-by: Will Johnson <[email protected]> * test: lora for scattermoe Signed-off-by: Will Johnson <[email protected]> * explitcitly don't support router layer Signed-off-by: Will Johnson <[email protected]> * docs: update documentation Signed-off-by: Will Johnson <[email protected]> * fix: simplify accelerate launch post processing Signed-off-by: Will Johnson <[email protected]> * tests: more target modules + ep_degree Signed-off-by: Will Johnson <[email protected]> * fix: only restrict all-linear, raise warning for other modules Signed-off-by: Will Johnson <[email protected]> * fix: augmentation test Signed-off-by: Will Johnson <[email protected]> * fix: raise error Signed-off-by: Will Johnson <[email protected]> * turn off requires grad if using scattermoe with lora Signed-off-by: Will Johnson <[email protected]> * fix: freeze scattermoe params Signed-off-by: Will Johnson <[email protected]> * fix: safer freezing Signed-off-by: Will Johnson <[email protected]> --------- Signed-off-by: Will Johnson <[email protected]>

… kernels. (foundation-model-stack#530) * save peft Signed-off-by: Will Johnson <[email protected]> * post process hf converted dir Signed-off-by: Will Johnson <[email protected]> * fix: convert hf converted checkpoint Signed-off-by: Will Johnson <[email protected]> * lora config Signed-off-by: Will Johnson <[email protected]> * save adapter config Signed-off-by: Will Johnson <[email protected]> * fix: add input linear and output linear to target modules Signed-off-by: Will Johnson <[email protected]> * fix: extend instead of append Signed-off-by: Will Johnson <[email protected]> * fix: if hasattr peft config Signed-off-by: Will Johnson <[email protected]> * fix: remove unneeded target modules Signed-off-by: Will Johnson <[email protected]> * test: lora for scattermoe Signed-off-by: Will Johnson <[email protected]> * explitcitly don't support router layer Signed-off-by: Will Johnson <[email protected]> * docs: update documentation Signed-off-by: Will Johnson <[email protected]> * fix: simplify accelerate launch post processing Signed-off-by: Will Johnson <[email protected]> * tests: more target modules + ep_degree Signed-off-by: Will Johnson <[email protected]> * fix: only restrict all-linear, raise warning for other modules Signed-off-by: Will Johnson <[email protected]> * fix: augmentation test Signed-off-by: Will Johnson <[email protected]> * fix: raise error Signed-off-by: Will Johnson <[email protected]> * turn off requires grad if using scattermoe with lora Signed-off-by: Will Johnson <[email protected]> * fix: freeze scattermoe params Signed-off-by: Will Johnson <[email protected]> * fix: safer freezing Signed-off-by: Will Johnson <[email protected]> --------- Signed-off-by: Will Johnson <[email protected]>

willmj added 19 commits March 24, 2025 13:39

save peft

cac0b8c

Signed-off-by: Will Johnson <[email protected]>

fix: model

c522429

Signed-off-by: Will Johnson <[email protected]>

post process hf converted dir

481dde6

Signed-off-by: Will Johnson <[email protected]>

fix: convert hf converted checkpoint

397c9ba

Signed-off-by: Will Johnson <[email protected]>

lora config

79dec24

Signed-off-by: Will Johnson <[email protected]>

save adapter config

3103720

Signed-off-by: Will Johnson <[email protected]>

fmt + comments

b61cbde

Signed-off-by: Will Johnson <[email protected]>

fix: add input linear and output linear to target modules

c12be0e

Signed-off-by: Will Johnson <[email protected]>

fix: extend instead of append

123c2d4

Signed-off-by: Will Johnson <[email protected]>

fix: if hasattr peft config

f68500b

Signed-off-by: Will Johnson <[email protected]>

fix: remove unneeded target modules

55ec4b5

Signed-off-by: Will Johnson <[email protected]>

Merge branch 'main' into save-peft-fast-moe

0cfb9f4

Signed-off-by: Will Johnson <[email protected]>

merge: main into branch

67bed66

Signed-off-by: Will Johnson <[email protected]>

lint + fmt

2362349

Signed-off-by: Will Johnson <[email protected]>

docs

a848a9b

Signed-off-by: Will Johnson <[email protected]>

test: lora for scattermoe

42c420c

Signed-off-by: Will Johnson <[email protected]>

fmt tests

e3e7525

Signed-off-by: Will Johnson <[email protected]>

docs: notes on restrictions

8449659

Signed-off-by: Will Johnson <[email protected]>

explitcitly don't support router layer

3c25265

Signed-off-by: Will Johnson <[email protected]>

willmj requested review from aluu317, anhuong, dushyantbehl, fabianlim and kmehant as code owners April 17, 2025 00:02

willmj changed the title ~~Save peft fast moe limited~~ feat: save lora config fast moe -limited Apr 17, 2025

github-actions bot added the feat label Apr 17, 2025

docs: generalize

da81f93

Signed-off-by: Will Johnson <[email protected]>

willmj force-pushed the save-peft-fast-moe-limited branch from 6b70cc8 to da81f93 Compare April 18, 2025 01:35

kmehant changed the title ~~feat: save lora config fast moe -limited~~ feat: Enable LoRA saving only for non MoE linear layers training with kernels. Apr 18, 2025

kmehant reviewed Apr 18, 2025

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tests/test_sft_trainer.py Outdated Show resolved Hide resolved

kmehant reviewed Apr 18, 2025

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tuning/sft_trainer.py Outdated Show resolved Hide resolved

willmj added 8 commits April 18, 2025 09:28

docs: update documentation

1424efd

Signed-off-by: Will Johnson <[email protected]>

fix: simplify accelerate launch post processing

b67ef0f

Signed-off-by: Will Johnson <[email protected]>

tests: more target modules + ep_degree

6a32d32

Signed-off-by: Will Johnson <[email protected]>

fix: only restrict all-linear, raise warning for other modules

d2b6153

Signed-off-by: Will Johnson <[email protected]>

fix: augmentation test

765ec95

Signed-off-by: Will Johnson <[email protected]>

fix: raise error

b0dea82

Signed-off-by: Will Johnson <[email protected]>

fix: raise error

806b716

Signed-off-by: Will Johnson <[email protected]>

Merge branch 'main' into save-peft-fast-moe-limited

f742e0b

Signed-off-by: Will Johnson <[email protected]>

fabianlim reviewed Apr 18, 2025

View reviewed changes

tuning/sft_trainer.py Outdated Show resolved Hide resolved

willmj added 2 commits April 18, 2025 10:56

fix: make warning more general

2567d30

Signed-off-by: Will Johnson <[email protected]>

turn off requires grad if using scattermoe with lora

70468db

Signed-off-by: Will Johnson <[email protected]>

fabianlim reviewed Apr 18, 2025

View reviewed changes

willmj added 6 commits April 18, 2025 14:48

fix: freeze scattermoe params

5b826c8

Signed-off-by: Will Johnson <[email protected]>

fix: safer freezing

af408f9

Signed-off-by: Will Johnson <[email protected]>

Merge branch 'main' into save-peft-fast-moe-limited

7b026a9

Signed-off-by: Will Johnson <[email protected]>

just use string for class name

d7c2d15

Signed-off-by: Will Johnson <[email protected]>

comment

0f7796e

Signed-off-by: Will Johnson <[email protected]>

Merge branch 'main' into save-peft-fast-moe-limited

4e8d774

Signed-off-by: Will Johnson <[email protected]>

fabianlim previously approved these changes Apr 21, 2025

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add comment

1759a2f

Signed-off-by: Will Johnson <[email protected]>

willmj dismissed fabianlim’s stale review via 1759a2f April 21, 2025 13:31

fabianlim approved these changes Apr 21, 2025

View reviewed changes

willmj merged commit 179da0a into foundation-model-stack:main Apr 21, 2025
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kmehant mentioned this pull request Apr 29, 2025

fix: incorrect check on fast moe activation #544

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feat: Enable LoRA saving only for non MoE linear layers training with kernels. #530

feat: Enable LoRA saving only for non MoE linear layers training with kernels. #530

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willmj commented Apr 17, 2025 •

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feat: Enable LoRA saving only for non MoE linear layers training with kernels. #530

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willmj commented Apr 17, 2025 •

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