Struct TrustRegionDiagnostics 

pub struct TrustRegionDiagnostics {
    pub cg_inner_iters: usize,
    pub radius_shrinks_bad_model: usize,
    pub radius_shrinks_low_rho: usize,
}

Counters surfaced by the trust-region solver.

Fields

cg_inner_iters: usize

Sum of inner Steihaug-CG iterations across all outer iterations.

radius_shrinks_bad_model: usize

Trust-region radius shrinks because the predicted reduction was non-positive (the quadratic model itself is unreliable).

radius_shrinks_low_rho: usize

Trust-region radius shrinks because actual / predicted < 1/4 (the model over-predicted reduction).

Trait Implementations

impl Clone for TrustRegionDiagnostics

fn clone(&self) -> TrustRegionDiagnostics

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TrustRegionDiagnostics

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

Formats the value using the given formatter.

impl Default for TrustRegionDiagnostics

fn default() -> TrustRegionDiagnostics

Returns the “default value” for a type.