ZeroPointDomain

class torchao.quantization.ZeroPointDomain(value, names=None, *, module=None, qualname=None, type=None, start=1, boundary=None)

Enum that indicate whether zero_point is in integer domain or floating point domain

integer domain: quantized_val = (float_val / scale) (integer) + zero_point (integer) float domain: quantized_val = (float_val - (zero_point (float) - scale * mid_point)) / scale none domain: quantized_val = (float_val / scale)