feat(swe-bench): bind each unit to an endpoint by shard index - #477
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feat(swe-bench): bind each unit to an endpoint by shard index#477arekay-nv wants to merge 1 commit into
arekay-nv wants to merge 1 commit into
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Every unit was submitted with endpoint_urls[:1], so a fleet configured with N engines sent all of its work to the first one and left the other N-1 idle. The comment justified this by noting that the service accepts exactly one endpoint per run and that the fleet's parallelism comes from running many units -- true, but it does not follow that every unit must pick the same one. Two consequences. The obvious one is a throughput ceiling: concurrency is bounded by one engine no matter how much hardware the run was given. The serious one is a measurement hazard -- a single engine's behaviour decides the whole run's accuracy, so one degraded engine is indistinguishable from a degraded model, which is precisely the confusion the endpoint fingerprint exists to prevent. Bind unit -> endpoint by shard index instead. The mapping is deterministic, so a retried unit lands on the endpoint it was originally measured against and stays comparable to its first attempt, and a run with one endpoint behaves exactly as before.
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