F333 durable renewal configuration manifest checks
Date: 2026-08-07 UTC
Host: cuda-ke
Kernel: Linux 7.0.0-28-generic x86_64
Python: 3.12.3
MPI: Open MPI 4.1.6 / mpi4py 4.1.1 / MPI 3.1

Static and syntax checks
- ruff touched production/test/evidence Python: pass
- Python bytecode compilation for touched Python: pass
- git diff --check including untracked delivery files: pass
- evidence-directory __pycache__ residue: none

Tests
- lifecycle/filesystem qualification directed tests: 53 passed, 14 subtests in 1.57 s
- related MPI/distributed/hybrid tests: 306 passed, 29 subtests in 18.14 s
- full warnings-as-errors Python regression: 702 passed, 49 subtests in 99.71 s
- different-configuration create-once race repetition: 20/20 pass

Real MPI crash/restart sequence
- ranks and masters/workers: 7 and 2/5
- sealed work epoch: f333 repeated 16 times
- actual MPI transport: true
- synthetic processor topology and process-group crash injection: true
- initial manifest publication observed before injected SIGKILL: true
- interrupted return code: -9
- manifest fingerprint: 1c94067d4355899cf3af9ecefc65785ecca2fa3db1c50586dfa59d1931c96f30
- manifest file SHA-256: 8d27f0a74d20883b35cbc3a2f6a732fd8a10d8d9af2f98462504b9bbcc244c9e
- unanimous restart jitter drift: 0.1 -> 0.25
- changed restart generation/attempts per master: 0/0 and 0/0
- changed restart manifest SHA-256 preserved: true
- changed restart worker ACKs and return code: 3/3 + 2/2 and 70
- changed restart elapsed: 0.864409 s
- matching restart generations per master: 3/3
- matching restart attempts/successes/failures: 3/3/0 and 3/3/0
- matching restart worker ACKs and return code: 3/3 + 2/2 and 0
- matching restart elapsed and epoch cleanup: 3.980271 s and true
- all JSON checks: pass

Mechanism cost
- warm-ups/repetitions: 10/100 interleaved and alternating
- first-publication samples: 30
- exact-read reuse median/p95: 10.481/22.774 us
- removed temp-fsync counterfactual median/p95: 2698.4085/2749.05 us
- median saved and counterfactual/fast ratio: 2687.9275 us and 257.45716057628084x
- first publication median/p95: 7372.645/7469.837 us
- all samples complete and temporary residue: true and 0

Strict evidence boundaries
- actual_multi_host=false
- deployment_evidence=false
- real_shared_storage_backend_tested=false
- mpi_rank_repair_tested=false
- network_partition_tested=false
- ulfm_repair_tested=false
- dse_throughput_benchmarked=false
- solver_or_coverage_uplift_measured=false
- lava_m_campaign_run=false

Repository inventory after F333
- documented feature IDs: F00-F333 (334 total)
- documented SYMCC configuration names: 410
- top-level test files: 246