Li Benchmarks

md_integrator_leapfrog greenvalidity pass

Tier 2 · wall_time · N=N=256,steps=10000 · variant algo_registry · OS linux

passpass — perf claims allowed when ratio is green

Source: latest.csv:perf_present

Wall-clock row exists only — no explicit correctness signal yet.

Ratio vs best competitor: 0.957 (95.7% of julia speed) (table SOTA: julia — best competitor; charts use julia = 1.0)
Best competitor value: 2.0462 s

No analytical verify rows in ingest yet. Run tier-1 with --verify so latest.csv exports verify_ulps / verify_within_1ulp.

Problem size: N=N=256,steps=10000 (family md_integrator_leapfrog)
Category: physics
Pillar: physics
Package: lic
Li / catalog oracle (mean ± σ): 2.1372 ± 0.030447 s (n=2) / 2.3174 ± 0.047733 s (n=2) (cpp)
Ratio vs catalog oracle: 0.9222×
Best competitor: julia (2.0462 s)
Li relative speed vs SOTA: 0.957 (1.0 = julia speed)
Validity: validity pass
Threshold: 1.2×
Source: lic/benchmarks/workloads/tier2_physics/md_integrator_leapfrog

PH ids: PH-5b

Compare oracle: cpp

Relative speed vs best competitor (julia) — SOTA = 1.0, higher is better. Absolute s values are in the table below.

Language comparison
Lang	Mean ± σ	Runs	Unit	Variant	OS
li	2.1372 ± 0.030447	2	s	release	linux
cpp	2.3174 ± 0.047733	2	s	release	linux
rust	2.2378 ± 0.092894	2	s	release	linux
julia	2.0462 ± 0.040408	2	s	release	linux
Metric: wall_time (value = mean of timed runs)