Struct FusedRowSpec 

pub struct FusedRowSpec {
    pub rows: usize,
    pub cols: usize,
    pub reduce: RowReduceKind,
    pub x: Symbol,
    pub y: Symbol,
    pub weight: Option<Symbol>,
    pub weight_rows: usize,
    pub residual: Option<Symbol>,
    pub bias: Option<Symbol>,
    pub eps: Epsilon,
}

A recognized fused row op — a per-row reduction over a rows × cols tensor: one output row per input row, each normalized independently over its cols entries. This is the transformer-normalization shape (RMSNorm / softmax / LayerNorm over the hidden dim, batched across rows). The flat single-vector reduction ReductionSpec is exactly the rows == 1 special case; this spec is what the one-block-per-row CUDA emitter consumes, and it grows weight/residual as the fused variants land — the durable foundation.

Fields

rows: usize

cols: usize

reduce: RowReduceKind

x: Symbol

y: Symbol

weight: Option<Symbol>

Per-column weight applied after the reduction (None for the weightless sugar).

weight_rows: usize

How many rows of cols the weight holds: 1, one row shared by every row; L, the lanes of a hyper-connected residual, row r taking the weight’s row r mod L (rmsnorm of H in L lanes with weight W).

residual: Option<Symbol>

A fused residual added element-wise BEFORE the reduction — the reduced value is X[idx] + residual[idx] (None for plain RMSNorm). This is the “add” of fused-add-RMSNorm (FIB 001_fused_add_rmsnorm).

bias: Option<Symbol>

Per-column bias ADDED after the scale (Y = … * weight + bias) — the shift of LayerNorm (None for RMSNorm, which has no bias).

eps: Epsilon

The norm’s epsilon, as the program gives it (Epsilon::DEFAULT for a softmax, which has none).

Trait Implementations

impl Clone for FusedRowSpec

fn clone(&self) -> FusedRowSpec

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FusedRowSpec

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

Formats the value using the given formatter.

impl PartialEq for FusedRowSpec

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for FusedRowSpec

impl StructuralPartialEq for FusedRowSpec