Struct GpuCsrMatrix 

pub struct GpuCsrMatrix {
    pub row_ptr: Vec<usize>,
    pub col_idx: Vec<usize>,
    pub values: Vec<f64>,
    pub n_rows: usize,
    pub n_cols: usize,
}

Sparse matrix in compressed sparse row (CSR) format.

This is a lightweight, GPU-friendly structure with direct access to the three CSR arrays. For richer functionality use the existing crate::csr::CsrMatrix.

Fields

row_ptr: Vec<usize>

Row pointer array of length n_rows + 1.

col_idx: Vec<usize>

Column indices of non-zero entries.

values: Vec<f64>

Values of non-zero entries.

n_rows: usize

Number of rows.

n_cols: usize

Number of columns.

Implementations

impl GpuCsrMatrix

pub fn n_nnz(&self) -> usize

Return the number of stored non-zeros.

pub fn density(&self) -> f64

Return the fill density: nnz / (n_rows * n_cols).

pub fn spmv(&self, x: &[f64]) -> SparseResult<Vec<f64>>

Compute y = A * x.

Errors

Returns SparseError::DimensionMismatch when x.len() != n_cols.

pub fn transpose(&self) -> GpuCsrMatrix

Compute the transpose A^T.

pub fn to_dense(&self) -> Array2<f64>

Convert to a dense n_rows × n_cols matrix.

Trait Implementations

impl Clone for GpuCsrMatrix

fn clone(&self) -> GpuCsrMatrix

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for GpuCsrMatrix

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

Formats the value using the given formatter.