Enum GraphError 

pub enum GraphError {
    NodeNotFound(NodeId),
    CycleDetected {
        from: NodeId,
        to: NodeId,
    },
    EmptyGraph,
    BufferSizeMismatch {
        node: NodeId,
        expected: usize,
        got: usize,
    },
    FusionNotPossible {
        a: NodeId,
        b: NodeId,
        reason: &'static str,
    },
    MemoryPlanningFailed(String),
    StreamPartitioningFailed(String),
    InvalidPlan(String),
    ValidationFailed(String),
    PtxCodegenFailed {
        group: usize,
        reason: String,
    },
    Internal(String),
}

Errors that can occur during graph construction, analysis, or execution.

Variants

NodeNotFound(NodeId)

A node referenced by ID does not exist in the graph.

CycleDetected

An edge would create a cycle in the computation DAG.

Fields

from: NodeId

to: NodeId

EmptyGraph

Graph has no nodes.

BufferSizeMismatch

Two nodes that should be compatible have incompatible buffer shapes.

Fields

node: NodeId

expected: usize

got: usize

FusionNotPossible

Fusion of two nodes was requested but they are not fusible.

Fields

a: NodeId

b: NodeId

reason: &'static str

MemoryPlanningFailed(String)

A memory planning constraint could not be satisfied.

StreamPartitioningFailed(String)

Stream assignment produced an invalid schedule.

InvalidPlan(String)

Execution plan validation error.

ValidationFailed(String)

Validation of a graph operation failed (e.g. an in-place executable graph update whose topology or node parameters are incompatible).

PtxCodegenFailed

PTX code generation for a fused kernel failed.

Fields

group: usize

reason: String

Internal(String)

General internal error (should not occur in correct usage).

Trait Implementations

impl Debug for GraphError

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

Formats the value using the given formatter.

impl Display for GraphError

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

Formats the value using the given formatter.

impl Error for GraphError

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.