ByteDance-Seed / ByteDance-Seed/Bagel

Parallel cfg forward

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Python
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Description

Hi guys! Thanks so much for your work!

I wonder if it is possible to make cfg forward in a parallel way, so that input sequences with dropped conditions and the initial sequence are fed in a batched manner to the llm backbone?

Is it possible to give batched sequences as an input to Qwen2Model?

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Research direction

Start by tracing the CFG forward path and the Qwen2Model entry point to determine how dropped-condition and initial sequences are currently passed to the LLM backbone. Check whether Qwen2Model already accepts batched sequences, then define completion as parallel batched CFG execution with behavior matching the existing sequential path.

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Assessment

Tech stack
python
Domain
machine-learning
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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