F332 epoch-bound renewal configuration consensus 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
- AST parse touched Python files: pass
- git diff --check including untracked delivery files: pass
- evidence-directory __pycache__ residue: none

Tests
- directed consensus/fingerprint/drift tests: 24 passed, 8 subtests in 1.34 s
- related MPI/distributed/hybrid tests: 303 passed, 29 subtests in 17.81 s
- full warnings-as-errors Python regression: 699 passed, 49 subtests in 101.91 s

Real MPI healthy and drift scenarios
- MPI ranks and masters/workers: 7 and 2/5
- sealed work epoch: f332 repeated 16 times
- processor identity and peer jitter drift: test wrapper injection
- healthy consensus fingerprint: 776bc9da6db7e0bc761c601280a75eee31c1bc3ee392aa759e2b9b4288ac9a94
- fixed-epoch fingerprint repeats: 2/2 identical
- healthy generations per master in both runs: 3/3
- healthy attempts/successes/failures per master in both runs: 3/3/0
- healthy return codes and worker ACKs: 0/0 and 3/3 + 2/2 in both runs
- injected root/peer jitter: 0.1/0.25
- drift consensus reached in both runs: false
- drift generations/attempts per master in both runs: 0/0 and 0/0
- drift local worker ACKs before abort in both runs: 3/3 + 2/2
- drift elapsed and return codes: 0.912403/0.875331 s and 70/70
- all JSON checks in both runs: pass

Synthetic mechanism cost
- topology sizes: 2/4/8 masters
- warm-ups/repetitions: 2/20, interleaved and alternating
- exchange medians: 1.211421/1.349709/1.535734 ms
- consensus medians: 1.261927/1.454180/1.874998 ms
- median deltas: 0.050506/0.104471/0.339265 ms
- median ratios: 1.041691/1.077403/1.220914x
- all 120 timed exchanges complete and agree: true

Strict evidence boundaries
- actual_mpi_transport=true
- synthetic_topology=true
- actual_multi_host=false
- deployment_evidence=false
- synthetic_control_plane=true
- real_shared_storage_backend_tested=false
- mpi_rank_crash_recovery_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 F332
- documented SYMCC configuration names: 410
- top-level test files: 246