Struct SupernodalCholeskySolver 

pub struct SupernodalCholeskySolver { /* private fields */ }

Supernodal Cholesky solver for symmetric positive definite sparse systems.

Performs A = L * L^T factorization using supernodal dense operations within each supernode for BLAS-like efficiency.

Implementations

impl SupernodalCholeskySolver

pub fn symbolic( row_offsets: &[usize], col_indices: &[usize], n: usize, ) -> Result<Self, SolverError>

Symbolic factorization: compute elimination tree, supernodes, column counts.

pub fn numeric( &mut self, row_offsets: &[usize], col_indices: &[usize], values: &[f64], ) -> Result<(), SolverError>

Numeric factorization: fill supernode dense blocks with L values.

Builds the full symmetric matrix from CSR lower triangle, then assembles and factors supernodes in postorder.

pub fn solve(&self, rhs: &[f64]) -> Result<Vec<f64>, SolverError>

Solve A * x = b using the supernodal Cholesky factorization.

Performs forward solve L * y = b then backward solve L^T * x = y.

pub fn nnz_factor(&self) -> usize

Number of non-zeros in the L factor.

Trait Implementations

impl Clone for SupernodalCholeskySolver

fn clone(&self) -> SupernodalCholeskySolver

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SupernodalCholeskySolver

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

Formats the value using the given formatter.