diff options
Diffstat (limited to 'ethosu/vela/weight_compressor.py')
| -rw-r--r-- | ethosu/vela/weight_compressor.py | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/ethosu/vela/weight_compressor.py b/ethosu/vela/weight_compressor.py index 0b4ac696..92197248 100644 --- a/ethosu/vela/weight_compressor.py +++ b/ethosu/vela/weight_compressor.py @@ -25,7 +25,7 @@ import math import numpy as np from collections import namedtuple from .numeric_util import round_up -from .scaling import quantise_scale +from .scaling import quantise_scale, reduced_quantise_scale from .tensor import TensorPurpose, TensorSubPurpose, TensorFormat, TensorBlockTraversal from .operation import NpuBlockType from .architecture_features import Block @@ -287,7 +287,7 @@ def calc_scales_and_pack_biases(tens, arch, oc_quantum, rescale_for_faf=False): if not rescale_for_faf: if ifm_dtype == DataType.uint8: scales = [np.double(ifm_scale * weight_scale) / np.double(ofm_scale) for weight_scale in weight_scales] - elif ifm_dtype == DataType.int8: + elif ifm_dtype == DataType.int8 or ifm_dtype == DataType.int16: scales = [ (np.double(ifm_scale) * np.double(weight_scale)) / np.double(ofm_scale) for weight_scale in weight_scales @@ -297,13 +297,16 @@ def calc_scales_and_pack_biases(tens, arch, oc_quantum, rescale_for_faf=False): else: if ifm_dtype == DataType.uint8: scales = [np.double(ifm_scale * weight_scale * 0x3000) for weight_scale in weight_scales] - elif ifm_dtype == DataType.int8: + elif ifm_dtype == DataType.int8 or ifm_dtype == DataType.int16: scales = [(np.double(ifm_scale * 0x3000) * np.double(weight_scale)) for weight_scale in weight_scales] else: assert False, str(ifm_dtype) + " not implemented" # quantise all of the weight scales into (scale_factor, shift) - quantised_scales = [quantise_scale(scale) for scale in scales] + if ifm_dtype == DataType.int16: + quantised_scales = [reduced_quantise_scale(scale) for scale in scales] + else: + quantised_scales = [quantise_scale(scale) for scale in scales] for _, shift in quantised_scales: assert shift >= 16 |