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[Quantization] Support w4afp8 MoE dynamic quantization (#5282)

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* support dynamic activation quant for w4afp8

* support dynamic w4afp8

* add test

* fix

* fix

---------

Co-authored-by: zhoutianzi666 <17801055074@163.com>
This commit is contained in:
Sunny-bot1
2025-12-02 18:56:16 +08:00
committed by GitHub
parent 429dd2b1db
commit 3629db4129
9 changed files with 478 additions and 37 deletions
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fastdeploy/model_executor/layers/quantization/w4afp8.py
+4 -2
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@@ -31,7 +31,7 @@ class W4AFP8Config(QuantConfigBase):
quantization config for weight 4bits and activation fp8
"""
def __init__(self, weight_scale_dict, act_scale_dict, is_permuted, hadamard_block_size) -> None:
def __init__(self, weight_scale_dict, act_scale_dict, is_permuted, hadamard_block_size, is_quantized) -> None:
super().__init__()
self.weight_scale_dict = weight_scale_dict
self.act_scale_dict = act_scale_dict
@@ -40,6 +40,7 @@ class W4AFP8Config(QuantConfigBase):
self.quant_round_type = 1
self.is_permuted = is_permuted
self.hadamard_block_size = hadamard_block_size
self.is_quantized = is_quantized
def name(self) -> str:
return "w4afp8"
@@ -50,7 +51,8 @@ class W4AFP8Config(QuantConfigBase):
act_scale_dict = config.get("act_scale_dict", None)
is_permuted = config.get("is_permuted", True)
hadamard_block_size = config.get("hadamard_block_size", 128)
return cls(weight_scale_dict, act_scale_dict, is_permuted, hadamard_block_size)
is_quantized = config.get("is_quantized", False)
return cls(weight_scale_dict, act_scale_dict, is_permuted, hadamard_block_size, is_quantized)
def get_quant_method(self, layer) -> Optional[QuantMethodBase]:
if isinstance(layer, FusedMoE):