Struct HistogramObserver 

pub struct HistogramObserver {
    pub bits: u32,
    pub symmetric: bool,
    /* private fields */
}

Calibrates using a fixed-width histogram and min-MSE clipping search.

Accumulates a histogram over the absolute range of all observed data. compute_params searches over percentile clipping thresholds and returns the range that minimises estimated quantization MSE.

Fields

bits: u32

Quantization bit-width.

symmetric: bool

Symmetric vs asymmetric.

Implementations

impl HistogramObserver

pub fn new(bits: u32, symmetric: bool, n_bins: usize) -> Self

Create a new HistogramObserver with n_bins bins.

Panics

Panics if bits is 0 or > 16 or n_bins is 0.

Trait Implementations

impl Clone for HistogramObserver

fn clone(&self) -> HistogramObserver

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for HistogramObserver

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

Formats the value using the given formatter.

impl Observer for HistogramObserver

fn observe(&mut self, data: &[f32])

Observe a batch of values.

fn compute_params(&self) -> QuantResult<(f32, i32)>

Compute (scale, zero_point) from accumulated statistics.

fn reset(&mut self)

Reset all accumulated statistics.

fn is_calibrated(&self) -> bool

Whether any data has been observed.