Crate graph_core 

Shared graph kernels for Mnemosyne.

This crate is reusable between the native PyO3 crate (mnemosyne_rs) and the forthcoming graph_wasm sub-crate (Wave 2 of Phase 223). It contains:

• util — runtime-dispatched AVX2+FMA dot products. Moved here from mnemosyne_rs::util so both surfaces can share one SIMD implementation.
• force — Barnes-Hut 2D force simulation (Simulation, SimulationConfig).
• viewport — R-tree viewport spatial index with lazy incremental updates (ViewportIndex, IndexPoint, ScoreKey).

Features

• native (default) — enables rayon. Intended for the host-side PyO3 crate and any integration tests that want parallelism.
• wasm — opts out of rayon and any other host-only deps. The WASM sub-crate sets default-features = false, features = ["wasm"].

Rayon is optional because the Wave 1 force simulation is single- threaded (see the note in force.rs); the feature flag reserves the parallel code path for when we need it.

Re-exports

pub use force::Simulation;

pub use force::SimulationConfig;

pub use viewport::IndexPoint;

pub use viewport::ScoreKey;

pub use viewport::ViewportIndex;

Modules

force

Barnes-Hut 2D force simulation.

force_3d

Barnes-Hut 3D force simulation internals — Phase 224 Wave 2.

util

Shared SIMD utility helpers for the graph kernels.

viewport

R-tree viewport spatial index.

Structs

Vec2

A 2-dimensional vector.

Vec3

A 3-dimensional vector.