pub fn metis_order_full(
pattern: &CscPattern<'_>,
opts: &MetisOptions,
) -> Result<(Vec<i32>, OrderingStats, MetisStats), OrderingError>Expand description
Contract-conforming ordering producer.
Signature matches the shape every FERAL ordering crate must expose
per dev/plans/ordering-crate-contract.md: input is a
full-symmetric CscPattern and options; output is a three-tuple
of (perm, OrderingStats, crate-stats), with errors in
OrderingError.
OrderingStats.time_us is the wall-clock time of this call.
fill_estimate and flop_estimate stay None — METIS does not
produce them at the ordering boundary; they belong to a downstream
symbolic analysis.
Runs the M1–M7 pipeline: coarsen, initial bisection, FM, separator
construction, and recursive nested dissection with an AMD leaf
fallback for subgraphs of at most nd_to_amd_switch vertices.