Struct SpMat 

pub struct SpMat<'buf, T> { /* private fields */ }

A sparse-matrix descriptor (CSR / CSC / COO / BSR). The descriptor keeps pointers to externally-owned device buffers; the lifetime parameter ties those buffers to the descriptor.

Implementations

impl<'buf, T: SparseScalar + DeviceRepr> SpMat<'buf, T>

pub fn csr( rows: i64, cols: i64, nnz: i64, row_offsets: &'buf mut DeviceBuffer<i32>, col_indices: &'buf mut DeviceBuffer<i32>, values: &'buf mut DeviceBuffer<T>, ) -> Result<Self>

Build a CSR (compressed sparse row) descriptor.

row_offsets.len() must equal rows + 1; col_indices.len() and values.len() must equal nnz.

pub fn csc( rows: i64, cols: i64, nnz: i64, col_offsets: &'buf mut DeviceBuffer<i32>, row_indices: &'buf mut DeviceBuffer<i32>, values: &'buf mut DeviceBuffer<T>, ) -> Result<Self>

Build a CSC (compressed sparse column) descriptor.

pub fn bsr( brows: i64, bcols: i64, bnnz: i64, row_block_dim: i64, col_block_dim: i64, order: Order, row_offsets: &'buf mut DeviceBuffer<i32>, col_indices: &'buf mut DeviceBuffer<i32>, values: &'buf mut DeviceBuffer<T>, ) -> Result<Self>

Build a BSR (block-sparse-row) descriptor.

pub fn coo( rows: i64, cols: i64, nnz: i64, row_indices: &'buf mut DeviceBuffer<i32>, col_indices: &'buf mut DeviceBuffer<i32>, values: &'buf mut DeviceBuffer<T>, ) -> Result<Self>

Build a COO (coordinate) descriptor.

impl<T> SpMat<'_, T>

pub fn shape(&self) -> Result<(i64, i64, i64)>

Sparse matrix dimensions: (rows, cols, nnz).

pub fn set_fill(&self, fill: Fill) -> Result<()>

Set the fill-triangle attribute (for triangular solves).

pub fn set_diag(&self, diag: Diag) -> Result<()>

Set the diagonal-type attribute (unit vs non-unit, for triangular solves).

pub fn as_raw(&self) -> cusparseSpMatDescr_t

Trait Implementations

impl<T> Debug for SpMat<'_, T>

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

Formats the value using the given formatter.

impl<T> Drop for SpMat<'_, T>

fn drop(&mut self)

Executes the destructor for this type.

impl<T> Send for SpMat<'_, T>