Struct DeviceCapabilities 

pub struct DeviceCapabilities {
    pub device_type: DeviceType,
    pub is_available: bool,
    pub device_name: String,
    pub memory_total_bytes: Option<u64>,
    pub memory_free_bytes: Option<u64>,
    pub compute_capability: Option<String>,
    pub supports_fp16: bool,
    pub supports_bf16: bool,
    pub supports_int8: bool,
}

Rich capability description for a single DeviceType.

Produced by DeviceCapabilities::probe. Fields are populated best-effort — anything the backend does not expose is left as None / false, which lets callers use a single code path regardless of how much telemetry the driver provides.

Fields

device_type: DeviceType

Which device this record describes.

is_available: bool

Whether the device is currently available for inference.

device_name: String

Human-facing device name (e.g. “CPU (x86_64)”, “NVIDIA GPU via CUDA”).

memory_total_bytes: Option<u64>

Total device memory in bytes, if known.

memory_free_bytes: Option<u64>

Free device memory in bytes, if known.

compute_capability: Option<String>

Compute capability string (e.g. “8.6” for Ampere). None for CPU / WebGPU / DirectML / CoreML.

supports_fp16: bool

Whether FP16 (half-precision float) is supported.

supports_bf16: bool

Whether BF16 (bfloat16) is supported.

supports_int8: bool

Whether INT8 quantised inference is supported.

Implementations

impl DeviceCapabilities

pub fn probe(device: DeviceType) -> Self

Probe a specific device and describe its capabilities.

Always returns a record; unavailable devices get is_available = false with the rest populated from static knowledge.

pub fn probe_all() -> Vec<Self>

Probe every DeviceType variant and return a record per device.

The resulting vector has exactly DeviceType::all_variants entries and is ordered to match that array.

pub fn best_available() -> Self

Return capabilities for the best currently-available device.

Equivalent to DeviceCapabilities::probe(DeviceType::auto()), but exposed as a named constructor for callers that only need the capability record.

Trait Implementations

impl Clone for DeviceCapabilities

fn clone(&self) -> DeviceCapabilities

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DeviceCapabilities

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

Formats the value using the given formatter.

impl Default for DeviceCapabilities

fn default() -> DeviceCapabilities

Returns the “default value” for a type.

impl Display for DeviceCapabilities

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

Formats the value using the given formatter.

impl Eq for DeviceCapabilities

impl PartialEq for DeviceCapabilities

fn eq(&self, other: &DeviceCapabilities) -> 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 DeviceCapabilities