Struct SellMatrix 

pub struct SellMatrix { /* private fields */ }

Sliced ELLPACK sparse matrix.

Rows are grouped into slices of slice_size rows. Within each slice, columns and values are stored in column-major order, padded to the max row length in that slice.

Implementations

impl SellMatrix

pub fn from_csr(csr: &CsrMatrix<f32>, slice_size: usize) -> Self

Convert a CSR matrix to SELL format with the given slice size.

Typical slice_size: 32 or 64 (matching SIMD width or warp size).

pub fn spmv( &self, alpha: f32, x: &[f32], beta: f32, y: &mut [f32], ) -> Result<(), SparseError>

SpMV: y = α·A·x + β·y

Errors

Returns error on dimension mismatch.

pub fn rows(&self) -> usize

Number of rows.

pub fn cols(&self) -> usize

Number of columns.

pub fn slice_size(&self) -> usize

Slice size (C parameter).

pub fn storage_size(&self) -> usize

Total stored elements (including padding zeros).

Trait Implementations

impl Clone for SellMatrix

fn clone(&self) -> SellMatrix

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for SellMatrix

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.