Model is too big to apply AdaRound

[yanz0920]

What to do when the model is too large to use adaround?

For example, when the model has 6B parameters and dtype is torch.float32, the storage requirements are as follows:
model: 24G
quantsim_model:24G

But there will be OOM when I runing AdaRound on Nvidia A100, which has 80G cuda memory...

[quic-mangal]

@quic-hitameht could you help answer this?

[quic-hitameht]

Hi @yanz0920 During Adaround optimization, we try to put all the cached intermediate activation data for a given layer on GPU for faster optimization whenever possible. In your case, you could disable this optimization by patching AdaroundOptimizer.enable_caching_acts_data method as shown in this unit test.

https://github.com/quic/aimet/blob/develop/TrainingExtensions/torch/test/python/test_adaround_weight.py#L889

Hope this helps. Please let us know if you have further questions.