Enum KrylovError 

pub enum KrylovError {
    InvalidOptions {
        solver: &'static str,
        reason: String,
    },
    ZeroInitialVector {
        solver: &'static str,
    },
    NoAffineCoefficient,
    NonHermitian {
        solver: &'static str,
        source: Error,
    },
    Operation {
        solver: &'static str,
        source: Error,
    },
}

Error returned by the matrix-free Krylov solvers.

Variants

InvalidOptions

Invalid solver options.

Fields

solver: &'static str

Solver that rejected the options.

reason: String

Description of the invalid option combination.

ZeroInitialVector

The initial vector is numerically zero.

Fields

solver: &'static str

Solver that rejected the initial vector.

NoAffineCoefficient

An affine GMRES call supplied only zero coefficients.

NonHermitian

The projected operator was not Hermitian.

Fields

solver: &'static str

Solver that performed the projection.

source: Error

Original projected-matrix diagnostic.

Operation

An underlying tensor operation (operator application, vector-space arithmetic, or backend call) failed.

Fields

solver: &'static str

Solver that performed the operation.

source: Error

Original tensor or backend diagnostic, preserving the full chain.

Trait Implementations

impl Debug for KrylovError

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

Formats the value using the given formatter.

impl Display for KrylovError

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

Formats the value using the given formatter.

impl Error for KrylovError

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.

impl From<Error> for KrylovError

fn from(source: Error) -> Self

Converts to this type from the input type.