[rebklee]

What does this PR do?

Registers seed set B (cohort 2026-11-C0, mlcommons/endpoints_policies#155) as
mlperf-endpoints-v1.0-2026-11-C0-B alongside set A, following #508. The seeds
are pinned to
seedset.yaml @ aa7537c.

Today a config bound to set B fails at load (submission_ref.ruleset ... is not registered), and from 2026-12-C1 set B is the only set a new submission can
adopt.

mlperf-endpoints-current stays on set A. Policies §4.6 binds a submission to
one set for its update window, so advancing the alias would re-seed runs that
bind through it.

Out of scope

• A 2026-11-C0 cohort for the in-repo checker. cohorts/2026-10-C1 accepts
  only set A, which is correct for that cohort.

Type of change

• New feature

Related issues

Relates to mlcommons/endpoints_policies#155

Testing

• test_endpoints_v1_0_set_b_official_seeds fails on main and passes
  here. The seeds-differ test now also compares the Endpoints sets with
  each other.
• CI's test selection (-m "not slow and not performance") on Linux:
  3240 passed, 8 skipped, 1 failed. The failure,
  test_run_timeout.py::test_metrics_drain_timeout_fails_run, also fails
  on main on this machine.
• inference-endpoint benchmark from-config against the echo server with
  set B: config.yaml records 17312635550606430962 /
  6679150691998295617. On main the same command exits 2.

Checklist

• Code follows project style
• Pre-commit hooks pass
• Documentation updated (if needed): n/a, no docs list ruleset names

[github-actions]

MLCommons CLA bot All contributors have signed the MLCommons CLA ✍️ ✅

[rebklee]

recheck

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
⚠️ Please upload report for BASE (main@745ac91). Learn more about missing BASE report.

Additional details and impacted files

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  Files           ?      170           
  Lines           ?    24332           
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  Misses          ?     4225           
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[arekay-nv]

@rebklee please sign the CLA form so we can review the PR.

MLCommons CLA bot:
Thank you very much for your submission; we really appreciate it. Before we can accept your contribution,
we ask that you sign the MLCommons CLA (Apache 2). Please submit your GitHub ID to our onboarding form to initiate
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0 out of 1 committers have signed the MLCommons CLA.
❌ @rebklee

[mrmhodak]

recheck

[mrmhodak]

@arekay-nv: This may be ready to go

[arekay-nv]

Thanks @rebklee