Function batch_distances

nodedb-vector/src/batch_distance.rs:18–23

Compute distances from a query vector to multiple candidate vectors. Returns a Vec of distances, one per candidate, in the same order. Processes candidates in batches for better cache behavior.

(query: &[f32], candidates: &[&[f32]], metric: DistanceMetric)

/// Returns a Vec of distances, one per candidate, in the same order.
/// Processes candidates in batches for better cache behavior.
pub fn batch_distances(query: &[f32], candidates: &[&[f32]], metric: DistanceMetric) -> Vec<f32> {
    candidates
        .iter()
        .map(|candidate| distance(query, candidate, metric))
        .collect()
}

/// Precompute all pairwise distances between selected neighbors and a candidate.
///