【No.11】Megatron 慢卡诊断与平台上报 - #378

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shanyulu wants to merge 57 commits into

redai-studio:mainfrom

shanyulu:feat/task11-straggler-profiler

Commits on Sep 25, 2026

feat(straggler): add opt-in non-blocking stage timing for Megatron
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f90b7af
feat(straggler): judge and report persistent slow ranks
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d25438e
test(straggler): pin the Megatron timer hook contract
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9005474
fix(straggler): judge only comparable windows and never guess
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c3bc015
feat(straggler): compare only equivalent peers and name the stages we measure
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0a5c067
feat(straggler): version the wire, publish platform metrics and carry step context
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fb4d371
feat(straggler): add a data-parallel-4 observer recipe with a fixed SFT set
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6e2aca0
test(straggler): assert the three acceptance invariants
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f9c3067
chore(sft): let the DP4 observer recipe skip checkpointing
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8478cd4
fix(training): pin the Ray working directory in both observer recipes
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573bb44
fix(straggler): log the resolved relax package in every process
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51c8d95
fix(straggler): persist runtime and collector counters on close
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ac15b99
fix(straggler): keep timers out of pickle walk
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c6d425f
chore(sft): untrack generated SFT dataset payloads
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d3b42e0
fix(straggler): close the red-team counterexamples
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a61543c
fix(straggler): persist counters during the run
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9d3729a
fix(straggler): anchor windows to the cohort, not each rank (RT-09)
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2d86da4
fix(straggler): serialise the shared collector state (RT-10)
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71490f9
fix(straggler): flush and scope observer output
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54cd3d2
fix(straggler): survive SIGTERM with durable evidence
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b9b1cb4
style(straggler): apply docformatter to tests
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f524084
test(straggler): independent adversarial verification of durability
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dd37647
fix(straggler): close the two writer races
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1e4bb6a
test(straggler): pin writer-race fix as a two-sided assertion
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96a286b
fix(tests): stop the shim test leaking megatron
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2037029
fix(straggler): gate verdicts on absolute magnitude
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22e9776
feat(straggler): publish local per-rank step work
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47581e0

Commits on Sep 26, 2026

Commits on Sep 27, 2026