Enum CudaDeviceError 

#[non_exhaustive]
pub enum CudaDeviceError {
    Discovery {
        operation: &'static str,
        source: BoxError,
    },
    Unavailable {
        requested: CudaDeviceId,
        discovered: Box<[CudaDeviceInfo]>,
    },
    Initialization {
        device: CudaDeviceId,
        operation: &'static str,
        source: BoxError,
    },
}

Structured failures from CUDA device discovery and initialization.

The error retains only provider-neutral device identities and metadata. It does not expose the concrete CUDA runtime error type behind a source.

Examples

use tenferro_gpu::{cuda::CudaDeviceError, cuda::CudaDeviceId};

let error = CudaDeviceError::Unavailable {
    requested: CudaDeviceId::from_ordinal(1),
    discovered: Vec::new().into_boxed_slice(),
};
assert_eq!(error.requested(), Some(CudaDeviceId::from_ordinal(1)));

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.

Discovery

Device discovery failed while performing the named operation.

Fields

operation: &'static str

The provider-neutral discovery operation being performed.

source: BoxError

The underlying discovery failure.

Unavailable

The requested device was not present in the discovered device list.

Fields

requested: CudaDeviceId

The device selected by the caller.

discovered: Box<[CudaDeviceInfo]>

Devices found during discovery, in discovery order.

Initialization

Device initialization failed while performing the named operation.

Fields

device: CudaDeviceId

The device whose runtime could not be initialized.

operation: &'static str

The provider-neutral initialization operation being performed.

source: BoxError

The underlying initialization failure.

Implementations

impl CudaDeviceError

pub fn operation(&self) -> Option<&'static str>

Return the operation associated with discovery or initialization.

Examples

use tenferro_gpu::{cuda::CudaDeviceError, cuda::CudaDeviceId};

let error = CudaDeviceError::Unavailable {
    requested: CudaDeviceId::from_ordinal(1),
    discovered: Vec::new().into_boxed_slice(),
};
assert_eq!(error.operation(), None);

pub fn requested(&self) -> Option<CudaDeviceId>

Return the requested device for an unavailable-device error.

Examples

use tenferro_gpu::{cuda::CudaDeviceError, cuda::CudaDeviceId};

let requested = CudaDeviceId::from_ordinal(1);
let error = CudaDeviceError::Unavailable {
    requested,
    discovered: Vec::new().into_boxed_slice(),
};
assert_eq!(error.requested(), Some(requested));

pub fn discovered(&self) -> Option<&[CudaDeviceInfo]>

Borrow the devices discovered for an unavailable-device error.

Examples

use tenferro_gpu::{cuda::CudaDeviceError, cuda::CudaDeviceId};

let error = CudaDeviceError::Unavailable {
    requested: CudaDeviceId::from_ordinal(1),
    discovered: Vec::new().into_boxed_slice(),
};
assert!(error.discovered().is_some_and(<[_]>::is_empty));

pub fn device(&self) -> Option<CudaDeviceId>

Return the device whose initialization failed.

Examples

use tenferro_gpu::{cuda::CudaDeviceError, cuda::CudaDeviceId};

let device = CudaDeviceId::from_ordinal(1);
let error = CudaDeviceError::Initialization {
    device,
    operation: "create_client",
    source: Box::new(std::io::Error::other("context failed")),
};
assert_eq!(error.device(), Some(device));

Trait Implementations

impl Debug for CudaDeviceError

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

Formats the value using the given formatter.

impl Display for CudaDeviceError

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

Formats the value using the given formatter.

impl Error for CudaDeviceError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.