Struct ScannConfig 

pub struct ScannConfig {
    pub dimension: u32,
    pub tree_levels: u8,
    pub num_leaves: u32,
    pub encoding: ScannEncoding,
}

Index-scoped ScaNN training and layout configuration.

Fields

dimension: u32

Float dimensions for AH, bit dimensions for binary Hamming.

tree_levels: u8

Configurable number of routing centroid levels.

num_leaves: u32

Number of terminal leaves shared by every segment.

encoding: ScannEncoding

Implementations

impl ScannConfig

pub fn validate(&self) -> ScannResult<()>

pub fn minimum_training_sample(&self) -> ScannResult<u64>

Minimum viable sample. A trainer may reduce the desired sample under a memory budget only while retaining at least this many rows.

pub fn desired_training_sample(&self, observed_vectors: u64) -> ScannResult<u64>

Recall-oriented sample target from the fresh ScaNN builder. The target is capped by the observed corpus, but never silently changes geometry.

pub fn effective_training_threshold(&self) -> ScannResult<u64>

Minimum corpus size at which a requested partition geometry may train. Before this threshold, serving must use the exact fallback.

pub fn training_state( &self, observed_vectors: u64, ) -> ScannResult<ScannTrainingState>

Trait Implementations

impl Clone for ScannConfig

fn clone(&self) -> ScannConfig

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ScannConfig

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

Formats the value using the given formatter.

impl Eq for ScannConfig

impl PartialEq for ScannConfig

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ScannConfig