Struct CpuKernel 

pub struct CpuKernel;

Reference CPU kernel. Wraps RabitqPlusIndex::search_with_rerank. Deterministic by construction (integer popcount scan + stable exact L2² rerank with total-order tie break via position).

This is the default kernel every consumer gets for free; GPU / SIMD implementations plug in alongside it via registration.

Implementations

impl CpuKernel

pub const fn new() -> Self

Trait Implementations

impl Clone for CpuKernel

fn clone(&self) -> CpuKernel

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CpuKernel

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

Formats the value using the given formatter.

impl Default for CpuKernel

fn default() -> CpuKernel

Returns the “default value” for a type.

impl VectorKernel for CpuKernel

fn id(&self) -> &str

Stable identifier surfaced in stats + logs. Must be unique per kernel type (e.g. "cpu", "cuda:0", "metal").

fn caps(&self) -> KernelCaps

Capability advertisement — what this kernel can do. Return a fresh struct (not a static reference) so kernels can narrow caps at runtime (e.g. GPU-down → min_batch = usize::MAX).

fn scan(&self, req: ScanRequest<'_>) -> Result<ScanResponse, RabitqError>

Run the scan + rerank for every query in req. Returns one Vec<SearchResult> per query, in the input order.

impl Copy for CpuKernel