Enum QParams 

pub enum QParams {
    PerTensor {
        scale: f32,
        zero_point: i32,
    },
    PerChannel {
        axis: usize,
        scales: Vec<f32>,
        zero_points: Vec<i32>,
    },
    PerGroup {
        axis: usize,
        group_size: usize,
        scales: Vec<f32>,
        zero_points: Vec<i32>,
    },
}

Quantization parameters describing how a quantized tensor can be inverted.

Per-channel and group-wise schemes need one scale/zero-point pair per channel (or per group); collapsing them to a single pair — as the legacy (Tensor, f32, i32) return type is forced to do — makes dequantization impossible for every channel but the first. QuantizedTensor keeps the full parameter set so the transform stays invertible.

Variants

PerTensor

A single scale/zero-point pair for the whole tensor.

Fields

scale: f32

Quantization step size.

zero_point: i32

Integer code mapped to the real value zero.

PerChannel

One scale/zero-point pair per channel along axis.

Fields

axis: usize

Channel axis the parameters are indexed by.

scales: Vec<f32>

Per-channel step sizes (length == shape[axis]).

zero_points: Vec<i32>

Per-channel zero points (length == shape[axis]).

PerGroup

One scale/zero-point pair per contiguous group of channels along axis.

Fields

axis: usize

Channel axis the groups are formed along.

group_size: usize

Number of channels per group.

scales: Vec<f32>

Per-group step sizes.

zero_points: Vec<i32>

Per-group zero points.

Implementations

impl QParams

pub fn representative_scale(&self) -> f32

Scale of the first channel/group, for interoperability with the legacy scalar-returning API. Only exact for QParams::PerTensor.

pub fn representative_zero_point(&self) -> i32

Zero point of the first channel/group. Only exact for QParams::PerTensor.

Trait Implementations

impl Clone for QParams

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for QParams

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

Formats the value using the given formatter.

impl PartialEq for QParams

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for QParams