Enum SimulationError 

pub enum SimulationError {
    LpInfeasible {
        scenario_id: u32,
        stage_id: u32,
        solver_message: String,
    },
    SolverError {
        scenario_id: u32,
        stage_id: u32,
        solver_message: String,
    },
    IoError {
        message: String,
    },
    PolicyIncompatible {
        message: String,
    },
    ChannelClosed,
    Stochastic(StochasticError),
    InvalidConfiguration(String),
}

Errors that can occur during simulation execution.

The fn simulate() function returns Result<SimulationSummary, SimulationError>. All variants implement std::error::Error + Send + Sync + 'static.

Variants

LpInfeasible

LP infeasibility at a simulation stage.

This indicates a system error — recourse slack variables (deficit, excess) should always make the LP feasible. If infeasibility occurs, it indicates a bug in LP construction or a degenerate system configuration. The error includes the scenario, stage, and solver diagnostic to aid debugging.

Fields

scenario_id: u32

0-based scenario identifier.

stage_id: u32

0-based stage identifier.

solver_message: String

Solver-provided diagnostic message.

SolverError

LP solver returned an unexpected status (e.g., numerical difficulties, unbounded). Includes solver-specific diagnostics.

Fields

scenario_id: u32

0-based scenario identifier.

stage_id: u32

0-based stage identifier.

solver_message: String

Solver-provided diagnostic message.

IoError

I/O failure during output writing (disk full, permission denied, Parquet encoding error). The simulation cannot continue if the output writer fails because results would be lost.

Fields

message: String

Description of the I/O failure.

PolicyIncompatible

Policy compatibility validation failed (simulation-architecture.md SS2). The trained policy is incompatible with the current system configuration.

Fields

message: String

Description of the compatibility mismatch.

ChannelClosed

Channel send failure — the receiving end (I/O thread) has dropped unexpectedly. Indicates a panic or crash in the output writer.

Stochastic(StochasticError)

Forward sampler construction or sampling failure.

InvalidConfiguration(String)

Invalid configuration passed to simulate, e.g. baked-template slice length does not match num_stages.

Trait Implementations

impl Debug for SimulationError

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

Formats the value using the given formatter.

impl Display for SimulationError

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

Formats the value using the given formatter.

impl Error for SimulationError

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<SimulationError> for SddpError

fn from(err: SimulationError) -> Self

Converts to this type from the input type.

impl From<StochasticError> for SimulationError

fn from(source: StochasticError) -> Self

Converts to this type from the input type.