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hi, @younesbelkada , sorry for the late PR.
its been busy days ;-)
i wrote some draft lines for deepspeed gradient checkpointing,
i tried to change original code as little as i can, but 2 things were inevitable
gradient_checkpointing_kwargs
as member variables for parsingnum_checkpoints
anduse_deepspeed_grad_ckpt
keys to check use advanced grad ckpt or nothere is my code for sanity checking advanced activation checkpointing
and the result was like
my environment was