Struct RowBlockShard 

pub struct RowBlockShard {
    pub target: Arc<Array2<f64>>,
    pub rows: Vec<usize>,
}

A held-out row-block shard for the universal-inference estimation/evaluation split the gates run over: a contiguous block of row indices into the FULL target the triggers were not tuned on.

The split is realized through the term’s per-row reconstruction weights (SaeManifoldTerm::set_row_loss_weights): a candidate is refit with the currently-held-out shards’ rows at weight 0 (no fitting pressure) and the estimation rows at weight 1, then EVALUATED on the held-out rows. The predictable-plugin e-process streams the shards: shard k is evaluated under a candidate that has not yet seen its rows, then folded into the estimation set (un-masked) for shard k+1 — exactly the contract run_atom_birth_gate guarantees the call order of.

Fields

target: Arc<Array2<f64>>

The full target, shared across shards ((N, p)).

rows: Vec<usize>

Row indices into the full target that this shard holds out for evaluation.

Trait Implementations

impl Clone for RowBlockShard

fn clone(&self) -> RowBlockShard

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RowBlockShard

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

Formats the value using the given formatter.