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SabreHeuristicConfig

cqlib_core::compile::sabre

Struct SabreHeuristicConfig 

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pub struct SabreHeuristicConfig {
    pub basic_weight: f64,
    pub lookahead_weights: Vec<f64>,
    pub decay_increment: Option<f64>,
    pub decay_reset: usize,
    pub attempt_limit: usize,
    pub best_epsilon: f64,
}
Expand description

Swap-selection heuristic used by SABRE.

The primary score combines the current front-layer sum, active-layer-scaled lookahead, and multiplicative congestion. Exact native 2Q cost resolves candidates in a narrow structural window when native plans are available.

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§basic_weight: f64

Weight of the current front-layer total distance.

§lookahead_weights: Vec<f64>

Weights of each active-layer-scaled lookahead-layer total.

§decay_increment: Option<f64>

Amount added to a physical qubit’s congestion multiplier after using it in a heuristic SWAP. None disables congestion control.

§decay_reset: usize

Number of heuristic SWAP attempts before decay values reset.

§attempt_limit: usize

Number of heuristic SWAPs allowed without routing a front-layer node before SABRE falls back to a shortest-path escape.

§best_epsilon: f64

Floating-point tolerance for treating candidate SWAP scores as tied.

Trait Implementations§

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impl Clone for SabreHeuristicConfig

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fn clone(&self) -> Self

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for SabreHeuristicConfig

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

Formats the value using the given formatter. Read more
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impl Default for SabreHeuristicConfig

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl PartialEq for SabreHeuristicConfig

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fn eq(&self, other: &Self) -> bool

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=. Read more
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impl StructuralPartialEq for SabreHeuristicConfig

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