Struct LatentInnerOptions 

pub struct LatentInnerOptions {
    pub max_iterations: usize,
    pub convergence_tolerance: f64,
    pub initial_ridge_t: f64,
    pub initial_ridge_beta: f64,
    pub lm_grow: f64,
    pub lm_shrink: f64,
    pub max_ridge: f64,
    pub solver_mode: Option<ArrowSolverMode>,
    pub trust_region_radius: f64,
    pub block_offsets: Option<Arc<[Range<usize>]>>,
}

Configuration for LatentInnerSolver::solve.

Fields

max_iterations: usize

Maximum joint (t, β) Newton iterations.

convergence_tolerance: f64

Relative-gradient convergence tolerance (see module docs).

initial_ridge_t: f64

Initial LM-style ridge on the per-row latent blocks.

initial_ridge_beta: f64

Initial LM-style ridge on the β block.

lm_grow: f64

Multiplicative growth factor for the LM ridges on a rejected step.

lm_shrink: f64

Multiplicative shrink factor for the LM ridges on an accepted step.

max_ridge: f64

Maximum ridge value before declaring failure.

solver_mode: Option<ArrowSolverMode>

BA Schur mode for the reduced shared system. None selects Direct for K <= 2000 and InexactPCG above, matching large-scale BA practice.

trust_region_radius: f64

Reduced-system trust-region radius for Steihaug-CG. This is the Ceres/BA trust-region bound layered on top of the existing LM ridges.

block_offsets: Option<Arc<[Range<usize>]>>

Optional β-block column ranges for the block-Jacobi Schur preconditioner.

When Some, the solver calls crate::arrow_schur::ArrowSchurSystem::set_block_offsets on every assembled system, engaging the block-Jacobi PCG preconditioner (one dense Schur sub-block per term, max size 256 columns) instead of the scalar-diagonal fallback.

Derive from ParameterBlockSpec slices via gam_custom_family::block_offsets_from_specs or an equivalent family-owned block layout. When None, the preconditioner falls back to scalar-diagonal Jacobi (the pre-block-Jacobi behaviour); when Some([]) (empty slice), the same fallback applies.

Trait Implementations

impl Clone for LatentInnerOptions

fn clone(&self) -> LatentInnerOptions

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LatentInnerOptions

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

Formats the value using the given formatter.

impl Default for LatentInnerOptions

fn default() -> Self

Returns the “default value” for a type.