Enum FallbackReason 

#[non_exhaustive]
pub enum FallbackReason {
    CudaFeatureNotBuilt,
    DriverRuntimeFailure,
    DeviceUnavailable,
    UnsupportedHardware,
    KernelSpecializationUnavailable,
    InvalidInput,
}

Stable reason code explaining why GPU was not selected (or why a request failed).

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

CudaFeatureNotBuilt

Built without the cuda Cargo feature (PTX/kernels not compiled in).

DriverRuntimeFailure

CUDA driver/runtime init or post-init stream setup failed.

DeviceUnavailable

No accessible CUDA device.

UnsupportedHardware

Device compute capability is below REQUIRED_COMPUTE_CAPABILITY.

KernelSpecializationUnavailable

Required PTX family or kernel symbol is missing after JIT.

InvalidInput

Caller-supplied launch arguments are invalid.

Implementations

impl FallbackReason

pub const fn code(self) -> &'static str

Stable snake_case code for tests and telemetry.

Trait Implementations

impl Clone for FallbackReason

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for FallbackReason

impl Debug for FallbackReason

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

Formats the value using the given formatter.

impl Display for FallbackReason

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

Formats the value using the given formatter.

impl Eq for FallbackReason

impl Hash for FallbackReason

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for FallbackReason

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for FallbackReason