Update GLM 5 B200 FP8 serve command - add SGLANG_ENABLE_JIT_DEEPGEMM

[faradawn]

Motivation

Add SGLANG_ENABLE_JIT_DEEPGEMM flag.

Reference: SemiAnalysisAI/InferenceX#1567

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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CI States

Latest PR Test (Base): ✅ Run #27167779141
Latest PR Test (Extra): ❌ Run #27167779032

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[b8zhong]

I think DeepGEMM is enabled by default, so this flag doesn't have an effect. Is this just for consistency in cookbook InfX submissions?

[faradawn]

If it is enabled by default, then we are good!

[b8zhong]

Yeah, it is 👍 https://docs.sglang.io/docs/references/environment_variables#deepgemm-configuration-advanced-optimization

[b8zhong]

@faradawn Let's close this for now. Since DeepGEMM is already enabled by default (it might be better to just remove it in the InfX recipe)