Struct Backend 

pub struct Backend { /* private fields */ }

Opaque compute backend handle.

Create once and share between Comparator and Scorer so both use the same underlying GPU device.

use zer_lib::prelude::*;

let schema     = SchemaBuilder::new().field("naam", FieldKind::Name).build().unwrap();
let backend    = Backend::auto_detect();
let comparator = Comparator::new(&schema, &backend);
let scorer     = Scorer::new(&backend);

Implementations

impl Backend

pub fn auto_detect() -> Self

Read --target=<name> from process args and return the matching backend.

Falls back to CPU when the flag is absent, no hardware probing. Pass --target=auto to restore the hardware-detection order (CUDA → Vulkan → AVX2 → CPU).

pub fn cpu() -> Self

Force the CPU backend regardless of available hardware.

pub fn from_target(target: &str) -> Self

Select a backend by name, called by auto_detect() to resolve --target=<name>.

Accepted values: "auto" (hardware-detect), "cpu", "cuda", "avx2", "vulkan".

Exits with a diagnostic if the target is unknown, not compiled in, or hardware init fails.

pub fn name(&self) -> &'static str

Human-readable name of the active backend: "cpu", "cuda", or "avx2".

pub fn is_gpu(&self) -> bool

true when a GPU backend is active.