Struct SelectionRequest 

pub struct SelectionRequest {
    pub require_gpu: bool,
    pub require_fp16: bool,
    pub require_bf16: bool,
    pub require_fp8: bool,
    pub require_tensor_cores: bool,
    pub require_unified_memory: bool,
    pub require_peer_access: bool,
    pub pin: Option<BackendKind>,
}

Required-feature predicate used to filter backends during selection.

A backend is eligible only if it is available and its capabilities satisfy every requested flag. All fields default to “don’t care”.

Fields

require_gpu: bool

Require a GPU backend (exclude the CPU fallback from the primary pick).

require_fp16: bool

Require native FP16 compute.

require_bf16: bool

Require native BF16 compute.

require_fp8: bool

Require FP8 compute.

require_tensor_cores: bool

Require Tensor-Core / matrix units.

require_unified_memory: bool

Require unified / managed memory.

require_peer_access: bool

Require peer-to-peer device access.

pin: Option<BackendKind>

If Some, only this exact backend kind is acceptable.

Implementations

impl SelectionRequest

pub const fn any() -> Self

A request with no constraints (any available backend qualifies).

pub const fn require_gpu() -> Self

A request that demands a GPU (used by callers that must not silently fall back to the CPU reference path).

pub const fn pinned(kind: BackendKind) -> Self

Pin selection to one specific backend kind.

pub fn is_satisfied_by(&self, entry: &BackendEntry) -> bool

Returns true if entry satisfies every constraint in this request.

Trait Implementations

impl Clone for SelectionRequest

fn clone(&self) -> SelectionRequest

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for SelectionRequest

impl Debug for SelectionRequest

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

Formats the value using the given formatter.

impl Default for SelectionRequest

fn default() -> SelectionRequest

Returns the “default value” for a type.

impl Eq for SelectionRequest

impl PartialEq for SelectionRequest

fn eq(&self, other: &SelectionRequest) -> 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 StructuralPartialEq for SelectionRequest