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SabreConfig

cqlib_core::compile::sabre

Struct SabreConfig 

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pub struct SabreConfig {
    pub layout_trials: usize,
    pub layout_assignment_budget: usize,
    pub vf2_prepass: Option<SabreVf2PrepassConfig>,
    pub refinement_iterations: usize,
    pub routing_trials: usize,
    pub seed: Option<u64>,
    pub heuristic: SabreHeuristicConfig,
}
Expand description

Configuration shared by SABRE layout refinement and routing.

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§layout_trials: usize

Number of randomized starting layouts added to deterministic and interaction-aware layout candidates.

§layout_assignment_budget: usize

Maximum component-assignment states explored before layout reports budget exhaustion. Exhaustion is distinct from proven infeasibility.

§vf2_prepass: Option<SabreVf2PrepassConfig>

Optional bounded VF2 prepass used to add a topology-perfect candidate. None disables the prepass.

§refinement_iterations: usize

Number of forward/backward refinement iterations per layout trial.

§routing_trials: usize

Number of complete routing trials run for each fully refined layout.

The search directly returns the best route and does not route intermediate refinement states or run a separate layout-scoring phase.

§seed: Option<u64>

Optional deterministic seed. Equal seeds produce equal cqlib results.

§heuristic: SabreHeuristicConfig

Swap-selection heuristic configuration.

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impl SabreConfig

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pub fn deterministic_seeded(seed: u64) -> Self

Returns a compact deterministic SABRE configuration for reproducible tests and examples.

This keeps all trial counts small, fixes the random seed, and uses a bounded swap-attempt limit so small fixtures run quickly while still exercising the SABRE routing path.

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pub fn validate(&self) -> Result<(), CompilerError>

Validates the routing fields used by SABRE.

This check intentionally ignores layout-refinement fields such as SabreConfig::layout_trials. Routing starts from a concrete initial layout and does not depend on those layout-only knobs.

Trait Implementations§

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impl Clone for SabreConfig

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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 SabreConfig

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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 SabreConfig

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fn default() -> Self

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

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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 SabreConfig

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