BBuf/sglang-internvl35-optimization
skills/model-optimization/sglang/sglang-internvl35-optimization/SKILL.md
PR-backed optimization manual for InternVL3.5 in SGLang. Use when an engineer needs to audit, debug, extend, or document InternVL3.5 multimodal processor, video support, ViT DP / CUDA graph, and non-CUDA backend compatibility.
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SKILL.md
- name:
- sglang-internvl35-optimization
- description:
- PR-backed optimization manual for InternVL3.5 in SGLang. Use when an engineer needs to audit, debug, extend, or document InternVL3.5 multimodal processor, video support, ViT DP / CUDA graph, and non-CUDA backend compatibility.
SGLang InternVL3.5 Optimization
Overview
This skill covers InternVL3.5 multimodal processor, video support, ViT DP / CUDA graph, and non-CUDA backend compatibility.
Evidence snapshot:
- SGLang mainline checked around
c122d343adb969cd9bbd1af2ca86727a11be3845 - sgl-cookbook checked around
e88b0fd8ac5b1caa6eb42766035029220053369b - Canonical PR notes:
references/pr-history.md - History mirrors:
model-pr-optimization-history/sglang/internvl35/README.zh.mdandREADME.en.md
Non-Negotiable Evidence Rule
Use skills/model-optimization/model-pr-diff-dossier/SKILL.md as the production bar.
Every PR cited for this family must be based on diff reading, not only PR titles.
Runtime Surfaces
sglang/python/sglang/srt/models/internvl.py
Current Main Summary
- InternVL3.5 is mostly a processor / encoder / video problem in SGLang.
- Video handling, data-parallel vision execution, and backend compatibility dominate the risk surface.
Key Landed PRs
- #5350
Support InternVL3: Initial InternVL family support that later carried 3.5. - #13640
Support Piecewise CUDA Graph for InternVL: Added graph capture support on the encoder path. - #13925
Support InternVL Vision Encoder Data Parallelism: Opened the multi-GPU ViT path. - #15942
Support Video for InternVL3_5: Extended support to 3.5 video use cases. - #19127
Support processor and embedding inputs for InternVL: Hardened processor / embed input interoperability.
Validation Lanes
- Startup on the cookbook checkpoint or example route.
- Re-run the parser, quantization, or multimodal lane that matches this family.
- Re-check registered or manual tests after touching loader or processor code.
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