deepspeedai / deepspeedai/DeepSpeedExamples

Something wrong at step1_supervised_finetuning/main.py

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Description

this line

losses += loss.float()

will accumulate grad and result in OOM

I think maybe change to this:

losses += loss.detach().cpu()

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Research direction

Inspect applications/DeepSpeed-Chat/training/step1_supervised_finetuning/main.py at line 299 and start by tracing how loss is accumulated during supervised fine-tuning. Reproduce or review the memory behavior around the accumulation, then verify that the reported loss no longer retains gradients or causes out-of-memory growth.

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Assessment

Tech stack
python
Domain
machine-learning
Issue type
Bug
Difficulty
2/5
Estimated time
1-3 hours
Activity status
Stale
Clarity
Clearly specified
Newbie friendliness
55/100

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