Li Benchmarks

wave_equation_1d greenvalidity pass

Tier 2 · wall_time · tier2 default grid · 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: 1.028 (102.8% of cpp speed) (table SOTA: li — Li leads; charts use cpp = 1.0)
Best competitor value: 1.2046 s

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

Problem size: tier2 default grid (family wave_equation_1d)
Category: physics
Pillar: physics
Package: lic
Li / catalog oracle (mean ± σ): 1.2046 ± 0.025079 s (n=2) / 1.2387 ± 0.024803 s (n=2) (cpp)
Ratio vs catalog oracle: 0.9725×
Best competitor: li (1.2046 s)
Li relative speed vs SOTA: 1.028 (1.0 = cpp speed)
Validity: validity pass
Threshold: 1.2×
Source: lic/benchmarks/workloads/tier2_physics/wave_equation_1d

PH ids: PH-5b

Compare oracle: cpp

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

Language comparison
Lang	Mean ± σ	Runs	Unit	Variant	OS
li	1.2046 ± 0.025079	2	s	release	linux
cpp	1.2387 ± 0.024803	2	s	release	linux
rust	1.2677 ± 0.051464	2	s	release	linux
julia	1.2837 ± 0.100323	2	s	release	linux
Metric: wall_time (value = mean of timed runs)