double_pendulum greenvalidity pass
Tier 2 · wall_time · tier2 default grid · OS linux
Validity gate
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
- 0.947 (94.7% of rust speed) (best in series:
rust— Li is never labeled best) - Best competitor value
- 0.3084 s
Numeric oracle
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
- Category
- physics
- Pillar
- physics
- Package
- lic
- Li / catalog oracle (mean ± σ)
- 0.3257 s / 0.3089 s (cpp)
- Ratio vs catalog oracle
- 1.0544×
- Best competitor
- rust (0.3084 s)
- Li relative speed vs SOTA
- 0.947 (1.0 =
rustspeed) - Validity
- validity pass
- Threshold
- 1.2×
- Source
- lic/benchmarks/tier2_physics/double_pendulum
PH ids: PH-5b
Performance vs best competitor
Compare oracle: cpp
Absolute measurements
| Lang | Mean ± σ | Runs | Unit | Variant | OS |
|---|---|---|---|---|---|
| li | 0.3257 | — | s | release | linux |
| cpp | 0.3089 | — | s | release | linux |
| rust | 0.3084 | — | s | release | linux |
| julia | 0.3141 | — | s | release | linux |
| Metric: wall_time (value = mean of timed runs) | |||||
Host OS
| Scope | OS |
|---|---|
| Row aggregate | linux |
| li (release) | linux |
| cpp (release) | linux |
| rust (release) | linux |
| julia (release) | linux |
Latest history deltas
- ratio_vs_cpp: 0.9997 → 1.0544 (Δ 0.0547) · regressed