Enum DeviceSelection 

pub enum DeviceSelection {
    Auto,
    Cpu,
    Cuda(usize),
    Metal(usize),
}

Strategy for selecting a compute device.

Variants

Auto

Automatically select the best available device (CUDA → Metal → CPU).

Cpu

Force CPU execution.

Cuda(usize)

Force CUDA execution on the specified GPU ordinal.

Metal(usize)

Force Metal execution on the specified GPU ordinal.

Implementations

impl DeviceSelection

pub fn resolve(&self) -> Result<Device>

Resolve this selection into a concrete candle Device.

For DeviceSelection::Auto, the priority is:

1. CUDA (if cuda feature enabled and device available)
2. Metal (if metal feature enabled and device available)
3. CPU (always available)

pub fn label(&self) -> String

Human-readable backend label.

pub fn preferred_runtime_candidates() -> Vec<Self>

Preferred runtime candidates for the current binary, ordered fastest-first.

pub fn available_runtime_candidates() -> Vec<Self>

Runtime candidates that successfully resolve on the current machine.

Trait Implementations

impl Clone for DeviceSelection

fn clone(&self) -> DeviceSelection

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DeviceSelection

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

Formats the value using the given formatter.

impl Default for DeviceSelection

fn default() -> DeviceSelection

Returns the “default value” for a type.

impl PartialEq for DeviceSelection

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for DeviceSelection

impl Eq for DeviceSelection

impl StructuralPartialEq for DeviceSelection