Struct RopeParams 

#[repr(C)]
pub struct RopeParams {

    pub n_total: u32,
    pub seq: u32,
    pub head_dim: u32,
    pub half: u32,
    pub in_off: u32,
    pub cos_off: u32,
    pub sin_off: u32,
    pub out_off: u32,
    pub last_dim: u32,
    pub batch: u32,
    pub seq_stride: u32,
    pub style: u32,
    pub rot_half: u32,
}

Layout for Rope.

Fields

n_total: u32

seq: u32

head_dim: u32

half: u32

in_off: u32

cos_off: u32

sin_off: u32

out_off: u32

last_dim: u32

batch: u32

PLAN L1 — set at compile time. Together with seq_stride, lets the WGSL kernel decompose iteration index into (bi, si, d) while indexing into the underlying full-extent buffer. n_total is the runtime-scaled iteration bound; seq_stride is the compile-time-fixed full seq for stride.

seq_stride: u32

style: u32

RoPE pairing flavor: 0 = NeoX rotate-half (i, i+half), 1 = GPT-J / llama.cpp-NORM interleaved adjacent pairs (2i, 2i+1). GGUF Llama weights are permuted for the GPT-J layout, so GGUF-backed decode needs style=1.

rot_half: u32

Partial rotary: half of n_rot (the rotated width). Dims [n_rot, head_dim) are copied through unchanged. Equals half for full rotation (n_rot == head_dim); smaller for p-RoPE (Gemma 4 global layers). The cos/sin row stride stays half (head_dim/2), matching the CPU reference.

Trait Implementations

impl Clone for RopeParams

fn clone(&self) -> RopeParams

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for RopeParams

impl Debug for RopeParams

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

Formats the value using the given formatter.

impl Pod for RopeParams

impl Zeroable for RopeParams

fn zeroed() -> Self

Calls zeroed.