Put importance sampling into no grad #343
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Detach old and reference hidden states to prevent gradient accumulation across micro-batches.
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I'm merging the partial fix - make another PR on detach :) @pluesclues |
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https://github.com/huggingface/trl/blob/41c8ca1ad3e03ecdd2833874a7eb36e85f31a089/trl/trainer/grpo_trainer.py#L1525-L1529
variable shouldn't have gradients attatched