Enum PlacementPlanError 

pub enum PlacementPlanError {
    InvalidRank {
        world_size: usize,
        global_rank: usize,
    },
    OwnerOutOfBounds {
        owner: usize,
        world_size: usize,
    },
    AxisOutOfBounds {
        axis: usize,
        rank: usize,
    },
    InvalidShard {
        axis: usize,
        index: usize,
        parts: usize,
        dimension: usize,
    },
    InvalidRange {
        axis: usize,
        start: usize,
        end: usize,
        dimension: Option<usize>,
    },
    InvalidIndices {
        axis: usize,
    },
    ArithmeticOverflow,
    UnexpectedSource {
        checkpoint_source: String,
    },
    SourceShapeMismatch {
        checkpoint_source: String,
        expected: Vec<usize>,
        actual: Vec<usize>,
    },
    Coverage {
        missing: Vec<String>,
        unexpected: Vec<String>,
    },
}

Failure while validating or resolving a complete logical placement plan.

Variants

InvalidRank

The selected world/rank pair is invalid.

Fields

world_size: usize

Process count.

global_rank: usize

Selected process rank.

OwnerOutOfBounds

A placement owner exceeds the selected world.

Fields

owner: usize

Invalid owner.

world_size: usize

Process count.

AxisOutOfBounds

A tensor axis exceeds its rank.

Fields

axis: usize

Invalid axis.

rank: usize

Tensor rank.

InvalidShard

Equal-shard geometry is invalid.

Fields

axis: usize

Selected axis.

index: usize

Shard index.

parts: usize

Shard count.

dimension: usize

Source dimension.

InvalidRange

Explicit range geometry is invalid.

Fields

axis: usize

Selected axis.

start: usize

Inclusive offset.

end: usize

Exclusive offset.

dimension: Option<usize>

Known source dimension.

InvalidIndices

Explicit indices are empty, duplicated, or out of bounds.

Fields

axis: usize

Selected axis.

ArithmeticOverflow

Slice arithmetic overflowed.

UnexpectedSource

A strict plan did not declare one checkpoint source.

Fields

checkpoint_source: String

Undeclared checkpoint source.

SourceShapeMismatch

Admitted and actual source shapes differ.

Fields

checkpoint_source: String

Exact checkpoint source.

expected: Vec<usize>

Admitted shape.

actual: Vec<usize>

Actual shape.

Coverage

Local materialization did not exactly cover the plan.

Fields

missing: Vec<String>

Required sources not loaded.

unexpected: Vec<String>

Undeclared sources encountered.

Trait Implementations

impl Clone for PlacementPlanError

fn clone(&self) -> PlacementPlanError

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for PlacementPlanError

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

Formats the value using the given formatter.

impl Display for PlacementPlanError

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

Formats the value using the given formatter.

impl Eq for PlacementPlanError

impl Error for PlacementPlanError

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 PartialEq for PlacementPlanError

fn eq(&self, other: &PlacementPlanError) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for PlacementPlanError