Struct ActiveMassFloor 

pub struct ActiveMassFloor {
    pub floor: f64,
}

Active-mass-floor watcher (#976). The wiring agent calls ActiveMassFloor::check with the per-row mean active assignment mass each inner iteration. When the mass collapses toward the uniform saddle (below the floor), check returns a MassFloorBreach the caller records in the ReseedLedger and acts on by re-seeding from the scaffold. A breach is never fatal — there is no error return.

Fields

floor: f64

Mean active mass below which the assignment is judged to have collapsed toward the near-uniform saddle and a scaffold re-seed is triggered.

Implementations

impl ActiveMassFloor

pub const DEFAULT_FLOOR: f64 = 0.1

Default floor: the failure boundary, not the healthy operating point. The SAE routing-collapse quality oracle plants a healthy codes’-units active mass of 0.2 and asserts recovery of at least half of it; the floor therefore sits at 0.5 × 0.2 = 0.1 — breach exactly when the fit enters the region the quality assertion already calls collapsed. Placing the floor at the healthy operating mass (the previous 0.2) made a healthy converging IBP-MAP fit oscillate across the floor, and every spurious breach re-seeds from the scaffold (obj.reset()) and re-enters a heavier regime — re-seed thrash that discards converged routing mass each bounce and pins the fit near the cold seed: itself a collapse mechanism. Genuine saddle collapse (0.03 observed mass) is still far below this floor.

pub fn default_floor() -> Self

pub fn check(&self, mean_active_mass: f64) -> Option<MassFloorBreach>

Check the observed mean active mass against the floor. Returns Some(MassFloorBreach) when collapsed (caller re-seeds from scaffold + logs to the ledger), None when healthy. Never an error.

Trait Implementations

impl Clone for ActiveMassFloor

fn clone(&self) -> ActiveMassFloor

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ActiveMassFloor

impl Debug for ActiveMassFloor

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

Formats the value using the given formatter.