Phase 5: no_std, parallelism, cache, benchmarks#8
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gvonness-apolitical merged 7 commits intomainfrom Feb 26, 2026
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Three benchmark suites covering all major subsystems: - node_generation: GL Newton/Bogaert, Golub-Welsch, Clenshaw-Curtis - integration_1d: fixed-order, composite, GK, adaptive, tanh-sinh, oscillatory - cubature: tensor product, sparse grid, adaptive cubature, Monte Carlo (plain/Sobol/Halton)
Gate the crate behind #![cfg_attr(not(feature = "std"), no_std)] with alloc imports for heap types. Feature-gate std::error::Error impl. Replace HashMap with BTreeMap in sparse_grid for no_std compatibility. Use core:: paths for f64::consts and cmp::Ordering throughout.
Add optional `parallel` feature (requires `std`) providing: - QuadratureRule::integrate_composite_par for parallel panel evaluation - CubatureRule::integrate_par and integrate_box_par for parallel point evaluation - MonteCarloIntegrator::integrate_par for parallel MC/QMC integration - GaussLegendre::new_par for parallel node generation (Newton + Bogaert) Sobol/Halton QMC produce identical results to sequential (deterministic). Plain MC uses independent PRNG per chunk (statistically equivalent).
Add cache module with LazyLock-based precomputed GL rules (GL5-GL100). Add #[inline] to 39 trivial getters across all rule types and CubatureRule. Bump version to 1.0.0 and mark Phase 5 complete in ROADMAP.md.
Revert version to 0.1.0 (not yet released). Rewrite README with correct API examples, feature flag documentation, no_std and parallel usage. Update lib.rs crate docs with feature table, cubature and cache examples. Fix ROADMAP milestone versions and test counts.
No longer needed — all phases are complete and the README documents the current feature set.
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Summary
no_stdsupport (stddefault feature,allocfor heap types,BTreeMapin sparse grid,num-traitswithlibm)parallelfeature with rayon-based_parmethods (integrate_composite_par,integrate_par,integrate_box_par,MonteCarloIntegrator::integrate_par,GaussLegendre::new_par)cachemodule withLazyLock-based precomputed GL rules (GL5–GL100)#[inline]annotations on 39 trivial getters across all rule typesno_std/parallelusagelib.rscrate docs with feature table, cubature and cache examplesTest plan
cargo test— 172 unit + 38 doc tests passcargo test --all-features— 179 unit + 38 doc tests pass (7 parallel tests)cargo test --no-default-features— 172 unit + 37 doc tests passcargo clippy --all-features— cleancargo bench --no-run— all 3 benchmark binaries compile