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column_counts

oxicuda_solver::sparse::direct_factorization

Function column_counts 

Source 
pub fn column_counts(
    row_offsets: &[usize],
    col_indices: &[usize],
    etree: &EliminationTree,
) -> Vec<usize>
Expand description

Compute the number of non-zeros in each column of L.

Uses the elimination tree to propagate fill-in counts from leaves to root. Input is CSR lower triangle.