Remove B200 GPU module (reservation expired, not renewed) - #975
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Remove B200 GPU module (reservation expired, not renewed)#975jeanschmidt wants to merge 1 commit into
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**Impact:** OSDC prod (us-east-2 loses B200 runners); PyTorch B200 CI jobs re-route to the existing DGX runners **Risk:** medium ## What Deletes the `nodepools-b200` and `arc-runners-b200` delegate modules, their defs and node-setup script, drops the B200 capacity reservation and module wiring from `clusters.yaml`, and scrubs all B200 references from docs, skills, tests, and shared Python (instance specs, label maps, fleet naming). ## Why The AWS Capacity Block reservation backing the B200 pool (`cr-0b15c0b3163f09d26`, us-east-2) expired and we've decided not to renew it. With no reserved capacity there's nothing for the module to schedule onto, so it's removed rather than left dangling. # Notes - Routing change (`pytorch-runners-routing` skill + `.github/arc.yaml` in the pytorch repo): `linux.dgx.b200` moves from a `meta_only_runners` override back to an **identity passthrough**, so both `linux.dgx.b200` and `linux.dgx.b200.8` now land on the existing DGX runners instead of OSDC ARC. The actual `arc.yaml` / `map_ec2_to_arc.py` edits live in `pytorch/pytorch` and are not part of this diff — only the OSDC-side skill docs are updated here. - us-west-1 was H100-only already; no B200 capacity there, so no functional change beyond doc cleanup. - Also cleans up leftover git conflict markers in `docs/observability-estimates.md`. - After merge, `just lint` / `just test` should be re-run to confirm the def/script/Python sync is complete. Signed-off-by: Jean Schmidt <contato@jschmidt.me>
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Impact: OSDC prod (us-east-2 loses B200 runners)
Risk: low
What
Deletes the
nodepools-b200andarc-runners-b200delegate modules, their defs and node-setup script, drops the B200 capacity reservation and module wiring fromclusters.yaml, and scrubs all B200 references from docs, skills, tests, and shared Python (instance specs, label maps, fleet naming).Why
The AWS Capacity Block reservation backing the B200 pool (
cr-0b15c0b3163f09d26, us-east-2) expired and we've decided not to renew it. With no reserved capacity there's nothing for the module to schedule onto, so it's removed rather than left dangling.Notes
pytorch-runners-routingskill +.github/arc.yamlin the pytorch repo):linux.dgx.b200moves from ameta_only_runnersoverride back to an identity passthrough, so bothlinux.dgx.b200andlinux.dgx.b200.8now land on the existing DGX runners instead of OSDC ARC. The actualarc.yaml/map_ec2_to_arc.pyedits live inpytorch/pytorchand are not part of this diff — only the OSDC-side skill docs are updated here.docs/observability-estimates.md.just lint/just testshould be re-run to confirm the def/script/Python sync is complete.Playbook for removal: