Struct TinyStepDualStall 

pub struct TinyStepDualStall {
    pub max_iters: usize,
    /* private fields */
}

Fields

max_iters: usize

tiny_step_dual_stall_iters; 0 never releases (upstream’s rule).

Implementations

impl TinyStepDualStall

pub fn new(max_iters: usize) -> Self

pub fn not_tiny(&mut self)

A step that was not tiny ends the run of tiny steps.

pub fn observe( &mut self, y_settled: bool, acceptable: bool, dual_inf: Number, ) -> bool

One tiny primal step. y_settled: the multiplier step is already below tiny_step_y_tol, so upstream’s own rule applies and this one has nothing to add. acceptable: the iterate passes the acceptable-level test, so it has an exit of its own (acceptable_iter) and is left to it – cutting it short would turn Solved_To_Acceptable_Level into a tiny-step stop (gh#532’s dual_inf_scale_kappa=0 case, where the dual sits on a round-off floor at an acceptable point). dual_inf: the scaled dual infeasibility at the iterate. Returns whether the stop may proceed as if the multiplier step had settled.

pub fn released(&self) -> bool

Whether the rule released the stop at least once.

Trait Implementations

impl Clone for TinyStepDualStall

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TinyStepDualStall

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

Formats the value using the given formatter.