Enum StopReason 

pub enum StopReason {
    Completed,
    Optimal,
    TargetReached,
    IterationLimit,
    NoImprovement,
    TimeLimit,
    Cancelled,
}

Why a solve stopped – the same vocabulary every runner in u-metaheur reports, so a nesting run and any other search say it in one set of words. Each strategy here sets it where it stops; Completed is a fill that tried every piece, or a search that spent the budget it is given internally. Why a run stopped: the run’s own account of the solution it returns.

The names follow the termination statuses of mathematical-programming solvers (Gurobi OPTIMAL · ITERATION_LIMIT · TIME_LIMIT · USER_OBJ_LIMIT · INTERRUPTED) and MATLAB ga’s stall generations.

Variants

Completed

The method ran to its own end: a schedule that cooled to its final temperature, a construction that tried every element.

Optimal

An exact method proved the solution optimal.

TargetReached

The solution met the target the caller set, so the search stopped there.

IterationLimit

The search spent its generation or iteration budget.

NoImprovement

The search went its stall budget without improving its best solution, and stopped there.

TimeLimit

The time limit ran out; the solution is the best found by then.

Cancelled

The caller cancelled the run; the solution is the best found by then.

Implementations

impl StopReason

pub const ALL: [StopReason; 7]

Every reason, in declaration order.

pub fn name(self) -> &'static str

The wire name ("time_limit", "no_improvement", …).

pub fn cut_short(self) -> bool

Whether the run ended on something other than its own course: the caller cancelled it or its time limit ran out.

Trait Implementations

impl Clone for StopReason

fn clone(&self) -> StopReason

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for StopReason

impl Debug for StopReason

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

Formats the value using the given formatter.

impl Eq for StopReason

impl Hash for StopReason

fn hash<__H>(&self, state: &mut __H)

where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for StopReason

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for StopReason