deepspeedai / deepspeedai/DeepSpeedExamples
[BUG] DeepSpeed-Chat Step3 - actor model repeats generating the same token when hybrid engine enabled
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Description
Keep other settings the same, when enabling the hybrid engine, the actor model in Step 3 generates the same token one by one until reaching the max length of the answer (id 29962 is the end of my prompt, the repeated token id is 517):
when I disabled the hybrid engine, the actor model generates normally:
Is there anything wrong with the hybrid engine? Thanks!
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- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
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Research direction
Start with the DeepSpeed-Chat Step3 actor-model entry point and reproduce the reported behavior with the hybrid engine enabled and disabled while keeping other settings unchanged. Compare the two configurations and runtime output; done means identifying and correcting the repeated-token behavior without changing the normal generation path.
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Assessment
- Tech stack
- python
- Domain
- machine-learning
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 35/100