Enum AccumulationError 

pub enum AccumulationError {
    ShapeMismatch {
        name: String,
        expected: Vec<usize>,
        got: Vec<usize>,
    },
    NoGradients,
    AccumulatorFull(usize),
}

Errors that can occur during gradient accumulation.

Variants

ShapeMismatch

Gradient shape mismatch when accumulating into a buffer.

Fields

name: String

Parameter name (may be empty for unnamed buffers).

expected: Vec<usize>

Expected shape of the gradient.

got: Vec<usize>

Actual shape of the gradient provided.

NoGradients

Attempted to retrieve gradients when none have been accumulated.

AccumulatorFull(usize)

The accumulator has already reached the configured number of micro-batches.

Trait Implementations

impl Debug for AccumulationError

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

Formats the value using the given formatter.

impl Display for AccumulationError

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

Formats the value using the given formatter.

impl Error for AccumulationError

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.