Crate sp_matmul_rs 

Sparse CSR × CSR matrix multiplication with fused top-n selection.

Rust port of sparse_dot_topn.

The default driver column-chunks B so the dense sums accumulator and the streamed B fragments stay resident in L1/L2 cache — this is the dominant performance lever for very large, very sparse inputs and is built in, not bolted on.

Re-exports

pub use crate::chunked::default_chunk_cols;

pub use crate::chunked::sp_matmul_topn_chunked;

pub use crate::chunked::AccumMode;

pub use crate::chunked::BProjection;

pub use crate::csr::CsrMatrix;

pub use crate::csr::CsrView;

pub use crate::index::Index;

pub use crate::matmul::sp_matmul;

pub use crate::matmul_topn::sp_matmul_topn;

pub use crate::matmul_topn::SortMode;

pub use crate::matmul_topn::TopNOptions;

pub use crate::scalar::Scalar;

pub use crate::tiled::TiledB;

pub use crate::zip::zip_sp_matmul_topn;

Modules

chunked

Column-chunked driver — the cache-blocking pillar.

csr

CSR matrix types — borrowed view and owned matrix.

index

Index trait — the integer type of the indptr / indices arrays.

matmul

sp_matmul — sparse CSR × CSR multiplication without top-n selection.

matmul_topn

sp_matmul_topn — sparse CSR × CSR multiplication keeping top-n per row.

maxheap

Bounded max-heap for top-n selection per row.

parallel

Rayon-backed parallel driver. Feature rayon (default-on).

scalar

Scalar trait — the element type of the matrices.

simd

Runtime CPU-feature detection for the x86-64 kernel clones.

tiled

Tiled-CSR representation of B (plan O3, “Strategie C”).

zip

zip_sp_matmul_topn — combine top-n sub-matrices produced by independent chunks.