Add IntraNode NVLink configration in PD disaggregation docs

[TTThanos]

Motivation

Add IntraNode NVLink configuration in PD disaggregation docs:
Users can launch SGlang server by using extra environment variables

export SGLANG_MOONCAKE_CUSTOM_MEM_POOL=INTRA_NODE_NVLINK export MC_INTRANODE_NVLINK=true

Modifications

Accuracy Tests

Speed Tests and Profiling

Checklist

• Format your code according to the Format code with pre-commit.
• Add unit tests according to the Run and add unit tests.
• Update documentation according to Write documentations.
• Provide accuracy and speed benchmark results according to Test the accuracy and Benchmark the speed.
• Follow the SGLang code style guidance.

Review and Merge Process

1. Ping Merge Oncalls to start the process. See the PR Merge Process.
2. Get approvals from CODEOWNERS and other reviewers.
3. Trigger CI tests with comments or contact authorized users to do so.
   • Common commands include /tag-and-rerun-ci, /tag-run-ci-label, /rerun-failed-ci
4. After green CI and required approvals, ask Merge Oncalls or people with Write permission to merge the PR.

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[stmatengss]

Please use pre-commit to format codes. docs/advanced_features/pd_disaggregation.md:136: awared ==> awarded

[TTThanos]

Please use pre-commit to format codes. docs/advanced_features/pd_disaggregation.md:136: awared ==> awarded

Done

[TTThanos]

Hi Mingyi @wisclmy0611 , thank you for your time and please help to review this PR. 🚀

[wisclmy0611]

Hi @TTThanos Could you pls resolve the conflict? Thanks!

[TTThanos]

Hi @TTThanos Could you pls resolve the conflict? Thanks!

Hi @wisclmy0611 conflict solved. 😊

[315930399]

Hi, if this feature is still not available using docker images?

[TTThanos]

Hi, if this feature is still not available using docker images?

Yep, I think so. To make sure you can leverage this feature successfully, you may need to git clone Mooncake repo and compile Mooncake enabling intraNode nvlink related cmake flags. :)