Change all macro INTRA_NVLINK to INTRA_NODE_NVLINK

[Copilot]

Description

Renames the USE_INTRA_NVLINK build macro to USE_INTRA_NODE_NVLINK and the MC_INTRANODE_NVLINK environment variable to MC_INTRA_NODE_NVLINK for naming consistency with the intranode NVLink transport feature.

Changes:

• CMake options and compile definitions across mooncake-common, mooncake-integration, and mooncake-transfer-engine
• Preprocessor guards in C++ source files (multi_transport.cpp, transfer_engine_impl.cpp, example benchmarks)
• Error messages referencing the compile flag
• Environment variable name in transfer_engine_impl.cpp changed from MC_INTRANODE_NVLINK to MC_INTRA_NODE_NVLINK
• Documentation build option references updated to MC_INTRA_NODE_NVLINK

Type of Change

• Types
  • Bug fix
  • New feature
    • Transfer Engine
    • Mooncake Store
    • Mooncake EP
    • Integration
    • P2P Store
    • Python Wheel
  • Breaking change
  • CI/CD
  • Documentation update
  • Other

How Has This Been Tested?

Verified all occurrences of INTRA_NVLINK and MC_INTRANODE_NVLINK were replaced via repository-wide search. No remaining references to the old macro or environment variable names exist.

Checklist

• I have performed a self-review of my own code.
• I have formatted my own code using ./scripts/code_format.sh before submitting.
• I have updated the documentation.
• I have added tests to prove my changes are effective.

---

💬 We'd love your input! Share your thoughts on Copilot coding agent in our 2 minute survey.

[alogfans]

LGTM

[ShangmingCai]

Will it affect the correctness of this PR: https://github.com/sgl-project/sglang/pull/17866/changes#diff-57994369b15ad2dae4060399006d759a7f12b2c36b322ba7424d6ca052cfce4cR26?

[stmatengss]

Will it affect the correctness of this PR: https://github.com/sgl-project/sglang/pull/17866/changes#diff-57994369b15ad2dae4060399006d759a7f12b2c36b322ba7424d6ca052cfce4cR26?

No, it's not an environment variable; I want to use the same prefix for both sglang and Mooncake.

[codecov-commenter]

⚠️ Please install the to ensure uploads and comments are reliably processed by Codecov.

Codecov Report

❌ Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
...integration/transfer_engine/transfer_engine_py.cpp	0.00%	1 Missing ⚠️

📢 Thoughts on this report? Let us know!

[stmatengss]

@copilot Change all MC_INTRANODE_NVLINK to MC_INTRA_NODE_NVLINK

[Copilot]

@copilot Change all MC_INTRANODE_NVLINK to MC_INTRA_NODE_NVLINK

Done in a38833e. Changed all occurrences of MC_INTRANODE_NVLINK to MC_INTRA_NODE_NVLINK in the source code and documentation files.