Enum AccelError 

#[non_exhaustive]
pub enum AccelError {
    ContextPoisoned(String),
    OutOfMemory(String),
    Unrecoverable(String),
    AccelRefStale(&'static str),
    Driver(String),
    LibraryError {
        lib: &'static str,
        msg: String,
    },
    Timeout,
}

Typed error enum surfaced through every actor reply channel.

Mirrors the original GpuError from rakka-accel-cuda but lives in the backend-agnostic core. Backends wrap or re-export this as their public Error associated type.

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.

ContextPoisoned(String)

Device context is in a sticky-error state. Triggers ContextActor restart and a generation bump.

OutOfMemory(String)

Allocation failed but the context is still usable. Supervisor Resumes the actor.

Unrecoverable(String)

Hardware fault or repeated poisoning past the retry budget.

AccelRefStale(&'static str)

AccelRef::access() was called on a buffer whose context was rebuilt or whose DeviceActor is shutting down.

Driver(String)

Driver-level error (e.g. cuInit, hipInit, MTLDevice setup) before any specific library got involved.

LibraryError

Library error tagged with the originating component name — e.g. "cublas", "cudnn", "cufft", "curand", "cusolver", "cublaslt", "nvrtc", "nccl", "hipblas", "rocfft", "mps". Callers that need to discriminate match on lib.

Fields

lib: &'static str

msg: String

Timeout

Implementations

impl AccelError

pub fn lib(lib: &'static str, msg: impl Into<String>) -> Self

Construct a tagged library error.

pub fn panic_message(&self) -> String

Format suitable for panicking out of an actor handler so that the rakka supervisor’s decider can route it to a directive based on the tagged prefix.

Trait Implementations

impl Debug for AccelError

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

Formats the value using the given formatter.

impl Display for AccelError

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

Formats the value using the given formatter.

impl Error for AccelError

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.