Struct CSRStorage 

pub struct CSRStorage {
    pub values: Vec<Precision>,
    pub col_indices: Vec<IndexType>,
    pub row_ptr: Vec<IndexType>,
}

Compressed Sparse Row (CSR) storage format.

Efficient for row-wise operations and matrix-vector multiplication.

Fields

values: Vec<Precision>

Non-zero values in row-major order

col_indices: Vec<IndexType>

Column indices corresponding to values

row_ptr: Vec<IndexType>

Row pointers: row_ptr[i] is the start of row i in values/col_indices

Implementations

impl CSRStorage

pub fn from_coo( coo: &COOStorage, rows: DimensionType, cols: DimensionType, ) -> Result<Self>

Create CSR storage from COO format.

pub fn from_csc( csc: &CSCStorage, rows: DimensionType, cols: DimensionType, ) -> Result<Self>

Create CSR storage from CSC format.

pub fn get(&self, row: usize, col: usize) -> Option<Precision>

Get matrix element at (row, col).

pub fn row_iter(&self, row: usize) -> CSRRowIter<'_>

Iterate over non-zero elements in a row.

pub fn col_iter(&self, col: usize) -> CSRColIter<'_>

Iterate over non-zero elements in a column (slow for CSR).

pub fn multiply_vector(&self, x: &[Precision], result: &mut [Precision])

Matrix-vector multiplication: result = A * x

pub fn multiply_vector_add(&self, x: &[Precision], result: &mut [Precision])

Matrix-vector multiplication with accumulation: result += A * x

pub fn nnz(&self) -> usize

Get number of non-zero elements.

pub fn to_triplets(&self) -> Result<Vec<(usize, usize, Precision)>>

Extract as coordinate triplets.

pub fn scale(&mut self, factor: Precision)

Scale all values by a factor.

pub fn add_diagonal(&mut self, alpha: Precision)

Add a value to the diagonal.

Trait Implementations

impl Clone for CSRStorage

fn clone(&self) -> CSRStorage

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CSRStorage

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for CSRStorage

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for CSRStorage

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.