Struct ContractionOptimizerOptions 

pub struct ContractionOptimizerOptions {
    pub betas: Vec<f64>,
    pub ntrials: usize,
    pub niters: usize,
    pub score: ScoreFunction,
}

Public options for automatic contraction-path optimization.

The default planner uses TreeSA with a greedy initializer and zero annealing iterations. This keeps the public API on a single optimizer family while making the default behavior effectively “greedy-only”.

Determinism

While annealing is disabled (niters == 0 or empty betas, as in the default), the planned path is a function of the subscripts and shapes alone: the same spec yields the same path in every process and on every call. With an annealing schedule the path comes from omeco’s TreeSA, whose annealing is seeded but whose greedy initializer (omeco 0.2.6) breaks ties in HashMap order, so annealed paths are not guaranteed to agree across processes.

Fields

betas: Vec<f64>

Inverse-temperature schedule for TreeSA.

ntrials: usize

Number of independent TreeSA trials.

niters: usize

Annealing iterations per temperature level.

score: ScoreFunction

Score function used by TreeSA.

Trait Implementations

impl Clone for ContractionOptimizerOptions

fn clone(&self) -> ContractionOptimizerOptions

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ContractionOptimizerOptions

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

Formats the value using the given formatter.

impl Default for ContractionOptimizerOptions

fn default() -> Self

Returns the “default value” for a type.