ci: migrate RL tests to test/registered/rl/

[alisonshao]

Summary

• Migrate RL (reinforcement learning) tests from test/srt/rl/ to the new test/registered/ CI system with proper registration decorators
• Part of [Roadmap] CI suites organization #13808

1-GPU tests (stage-b-test-small-1-gpu)

Test	CUDA Time	AMD Time
test_fp32_lm_head.py	9s	15s
test_update_weights_from_tensor.py	195s	N/A

2-GPU tests (stage-b-test-large-2-gpu / per-commit-2-gpu-amd)

Test	CUDA Time	AMD Time
test_update_weights_from_distributed.py	103s	103s

4-GPU tests (per-commit-4-gpu)

Test	CUDA Time
test_return_routed_experts.py	300s

Note: The disabled test_update_weights_from_disk.py remains in test/srt/rl/ as it's currently disabled in CI (see #13998).

Test plan

• Verify CI runs the migrated tests in the correct suites

[gemini-code-assist]

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[Kangyan-Zhou]

/tag-and-rerun-ci

[alisonshao]

nv ci passed: https://github.com/sgl-project/sglang/actions/runs/20711130521?pr=16417
amd failure is pre-existing issue: https://github.com/sgl-project/sglang/actions/runs/20711130468/job/59517430157?pr=16417

[Kangyan-Zhou]

nv ci passed: https://github.com/sgl-project/sglang/actions/runs/20711130521?pr=16417

The AMD CI seems broken: https://github.com/sgl-project/sglang/actions/runs/20711130468/job/59517430157

[alisonshao]

nv ci passed: https://github.com/sgl-project/sglang/actions/runs/20711130521?pr=16417

The AMD CI seems broken: https://github.com/sgl-project/sglang/actions/runs/20711130468/job/59517430157

pre-existing issue. checking how to fix

[alisonshao]

/rerun-stage stage-b-test-small-1-gpu-amd

[github-actions]

✅ Triggered stage-b-test-small-1-gpu-amd to run independently (skipping dependencies).

It will not be shown in this page. Check the Actions tab for progress.

[alisonshao]

amd 1 gpu passed: https://github.com/sgl-project/sglang/actions/runs/20735509755

[alisonshao]

/rerun-stage stage-b-test-large-2-gpu-amd

[github-actions]

✅ Triggered stage-b-test-large-2-gpu-amd to run independently (skipping dependencies).

It will not be shown in this page. Check the Actions tab for progress.

[alisonshao]

amd 2 gpu passed: https://github.com/sgl-project/sglang/actions/runs/20736307829

[alisonshao]

/rerun-stage stage-c-test-large-4-gpu

[github-actions]

✅ Triggered stage-c-test-large-4-gpu to run independently (skipping dependencies).

It will not be shown in this page. Check the Actions tab for progress.

[alisonshao]

nv 4 gpu passed: https://github.com/sgl-project/sglang/actions/runs/20736583928

[alisonshao]

/rerun-stage stage-b-test-large-2-gpu
/rerun-stage stage-b-test-small-1-gpu

[github-actions]

✅ Triggered stage-b-test-large-2-gpu to run independently (skipping dependencies).

It will not be shown in this page. Check the Actions tab for progress.

[alisonshao]

nv 2 gpu: https://github.com/sgl-project/sglang/actions/runs/20737341768/job/59537323411

[alisonshao]

/rerun-stage stage-b-test-small-1-gpu

[github-actions]

✅ Triggered stage-b-test-small-1-gpu to run independently (skipping dependencies).

It will not be shown in this page. Check the Actions tab for progress.

[alisonshao]

https://github.com/sgl-project/sglang/actions/runs/20737959975