Module extendr_api::prelude::sparse::linalg::lu::supernodal

Supernodal factorization module.

A supernodal factorization is one that processes the elements of the LU factors of the input matrix by blocks, rather than by single elements. This is more efficient if the LU factors are somewhat dense.

Structs

• SupernodalLu
  LU factor structure containing the symbolic and numerical representations.
• SymbolicSupernodalLu
  LU factor structure containing the symbolic structure.

Functions

• factorize_supernodal_numeric_lu
  Computes the numeric values of the LU factors of the matrix A as well as the row pivoting permutation, and stores them in lu and row_perm/row_perm_inv.
• factorize_supernodal_numeric_lu_req
  Computes the size and alignment of the workspace required to perform a numeric LU factorization.
• factorize_supernodal_symbolic_lu
  Computes the symbolic structure of the LU factors of the matrix A.
• factorize_supernodal_symbolic_lu_req
  Computes the size and alignment of the workspace required to compute the symbolic LU factorization of a square matrix with size n.