Local Level Lab

Airborne measurements. Open methods.

Exact agreement across the complete native control matrix

All 24 controls passed. The candidate preserves all 348 saved predictions, coefficient matrices, physical bindings and four error-remainder arrays exactly. The study spent its 78 native calls, 348 bounds and 60,288 logical bound steps. The completed freeze and every charge remain preserved; it will not be restarted.

The result qualifies the arithmetic substitution on this generated control matrix. It does not demonstrate a speedup: the 243-second total includes native oracle calls, compilation, worker setup and publication-independent checks. Earlier runs occurred separately and are not a matched timing benchmark.

Next, compare the unchanged and integer implementations on the same shortened sources in one serial study. Require identical outputs and record propagation time without profiler instrumentation. Only a measured benefit justifies a new full-history performance screen. The existing width target, aircraft results and observational-error requirements remain unchanged.

Verified controls · Timing plan · Roadmap.