Enum CpuThreadError 

pub enum CpuThreadError {
    ZeroThreads,
    Pool {
        source: Box<Error>,
    },
    EmptyCpuList,
    DuplicateCpu {
        cpu: usize,
    },
    CpuNotAllowed {
        cpu: usize,
    },
    UnsupportedPlatform,
    Affinity {
        operation: &'static str,
        source: Error,
    },
    ConstructionThread {
        source: Error,
    },
    ConstructionThreadPanic,
    WorkerAffinity {
        worker: usize,
        source: Error,
    },
}

Failure reported when building a CpuBackend pool or applying its affinity policy.

A pool build and, on Linux, the affinity snapshot are the fallible steps of a CpuBackend: tenferro itself never builds threads, so the caller’s thread policy is the caller’s error to carry.

Examples

use tensor4all_tensorbackend::CpuThreadError;

let error = CpuThreadError::ZeroThreads;
assert!(error.to_string().contains("at least one"));

Variants

ZeroThreads

A CpuBackend was asked for zero workers.

Pool

The worker pool for the requested worker count could not be built.

Fields

source: Box<Error>

Original pool diagnostic.

EmptyCpuList

CpuBackend::pinned was given an empty CPU list.

DuplicateCpu

CpuBackend::pinned was given the same CPU twice.

Fields

cpu: usize

The repeated CPU id.

CpuNotAllowed

CpuBackend::pinned named a CPU outside the main thread’s mask.

Fields

cpu: usize

The rejected CPU id.

UnsupportedPlatform

CPU affinity is only implemented on Linux.

Affinity

An affinity system call failed.

Fields

operation: &'static str

The system call that failed.

source: Error

Original operating-system diagnostic.

ConstructionThread

The short-lived thread that builds a pool could not be started.

Fields

source: Error

Original thread-spawn diagnostic.

ConstructionThreadPanic

The CPU pool construction thread panicked before returning the pool.

WorkerAffinity

A pinned worker could not be confined to its CPU, or its startup handshake failed.

Fields

worker: usize

Rayon worker index, or zero for a closed startup channel.

source: Error

Original operating-system or verification diagnostic.

Trait Implementations

impl Debug for CpuThreadError

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

Formats the value using the given formatter.

impl Display for CpuThreadError

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

Formats the value using the given formatter.

impl Error for CpuThreadError

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.