Enum ElementMode 

pub enum ElementMode {
    PerConstraint,
    PrimalBlock,
}

How the Lagrangian is split into elements.

Variants

PerConstraint

One element per constraint row (plus the objective). Each block has a multiplier-independent target, and needs no assumption about how the model orders its variables — but there are as many blocks as constraints, each approximating a ∇²c_j with no sign structure, and the errors accumulate through the weighted sum.

PrimalBlock

One element per contiguous block of primal variables, modelling the Lagrangian’s restriction to that block with damped BFGS. This is Asprion, Chinellato & Guzzella’s partition: a direct collocation transcription orders its variables by stage, so the Lagrangian Hessian really is close to block diagonal in this partition, and the block count is the stage count rather than the constraint count.

Trait Implementations

impl Clone for ElementMode

fn clone(&self) -> ElementMode

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ElementMode

impl Debug for ElementMode

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

Formats the value using the given formatter.

impl Eq for ElementMode

impl PartialEq for ElementMode

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ElementMode