### What does this PR do?
- fix test_engine ci for latest transformers
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### What does this PR do?
- As title
- Add a test to compare the output of FSDP/Megatron engine with
huggingface model
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---------
Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
### What does this PR do?
- Support FSDPEngine and FSDPEngineWithLMHead
- Add tests and show that fsdp engine matches with mcore and huggingface
on QWen 2.5 0.5b model
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---------
Co-authored-by: ziheng.jiang <ziheng.jiang@bytedance.com>
This PR allows users to pass all vllm/sglang engine args and optimizes
qwen3 rollout speed through vllm Engine argument.
1. deprecate the default value of previous engine_kwargs
2. pass all the engine_kwargs to vllm/sglang engine
3. optimize Qwen3-235B rollout speed by setting TP=8 and enabling expert
parallel.
From top to bottom: tp=16 without EP, tp=8 without EP and tp=8 with EP.
<img width="1000" height="808" alt="image"
src="https://github.com/user-attachments/assets/6b096be4-3896-4e96-8916-d8d6e13a58cc"
/>
PS: The DeepSeek-V3's rollout slows down after enabling expert
parallelism.
### What does this PR do?
feat: Upgrade sglang 0.4.9 + transformers 4.53.2
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### What does this PR do?
fix typo `gather_outpus_and_unpad` -> `gather_outputs_and_unpad`
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---------
Signed-off-by: ShareLer <ShareLe@163.com>
### What does this PR do?
Previously the ruff line-len is too large, making it hard for users to
view code. If we keep the config, manually created short lines will be
formatted to long lines as well. This PR contains 3 commits:
- df4bbfca62f41d972c48c8a76088ae2ac29691cf set line len to 120 and run
pre-commit auto-format
- 9d03f183edd9fff4e22215cacacf62c06b7b41d3 let devin fix the multi-line
code
- 9fc8d436f5007535fad3dc49983b01d0d457be9c skip lint for
test_sglang_async_rollout_sf_tools.py. manually adjust format for
rope_utils.py
- last two commits:
1. merge with main
2. run lint after merge. add test_sglang_async_rollout_sf_tools.py and
scripts/legacy_model_merger.py to lint.exclude
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---------
Co-authored-by: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>