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[XPU] add sym params to IPEXConfig (#28611)

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Signed-off-by: Zhu, Zufang <zufang.zhu@intel.com>
This commit is contained in:
zofia 2025-11-13 19:35:04 +08:00 committed by GitHub
parent c428e8d80b
commit c47b6c85ac
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1 changed files with 18 additions and 2 deletions
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20
vllm/model_executor/layers/quantization/ipex_quant.py
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@ -52,6 +52,7 @@ class IPEXConfig(QuantizationConfig):
modules_to_not_convert: list[str] | None = None,
desc_act: bool | None = None,
lm_head_quantized: bool | None = None,
is_sym: bool | None = None,
) -> None:
super().__init__()
self.method = method
@ -60,6 +61,7 @@ class IPEXConfig(QuantizationConfig):
self.modules_to_not_convert = modules_to_not_convert or []
self.desc_act = desc_act
self.lm_head_quantized = lm_head_quantized
self.is_sym = is_sym
self.pack_factor = 32 // self.weight_bits
if self.weight_bits not in [4]:
@ -108,15 +110,25 @@ class IPEXConfig(QuantizationConfig):
modules_to_not_convert = cls.get_from_keys_or(
config, ["modules_to_not_convert"], None
)
is_sym = not cls.get_from_keys_or(config, ["zero_point"], default=False)
return cls(
method, weight_bits, group_size, modules_to_not_convert, False, False
method,
weight_bits,
group_size,
modules_to_not_convert,
False,
False,
is_sym,
)
# otherwise for gptq
weight_bits = cls.get_from_keys(config, ["bits"])
group_size = cls.get_from_keys(config, ["group_size"])
lm_head_quantized = cls.get_from_keys_or(config, ["lm_head"], default=False)
desc_act = cls.get_from_keys_or(config, ["desc_act"], default=False)
return cls(method, weight_bits, group_size, [], desc_act, lm_head_quantized)
is_sym = cls.get_from_keys_or(config, ["sym"], default=True)
return cls(
method, weight_bits, group_size, [], desc_act, lm_head_quantized, is_sym
)
@classmethod
def override_quantization_method(
@ -180,6 +192,7 @@ class IPEXGPTQLinearMethod(GPTQLinearMethod):
# The float activation will be quantized (dynamic, per-token) to INT8.
act_quant_mode = ipex.quantization.WoqActQuantMode.PER_BATCH_IC_BLOCK
assert isinstance(self.quant_config, IPEXConfig)
qconfig = ipex.quantization.get_weight_only_quant_qconfig_mapping(
weight_dtype=weight_dtype,
lowp_mode=lowp_mode,
@ -200,6 +213,7 @@ class IPEXGPTQLinearMethod(GPTQLinearMethod):
bias=bias,
group_size=self.quant_config.group_size,
quant_method=IPEXConfig.IPEX_QUANT_METHOD_MAP["gptq"],
weight_qscheme="sym" if self.quant_config.is_sym else "asym",
)
)
@ -250,6 +264,7 @@ class IPEXAWQLinearMethod(AWQLinearMethod):
# The float activation will be quantized (dynamic, per-token) to INT8.
act_quant_mode = ipex.quantization.WoqActQuantMode.PER_BATCH
assert isinstance(self.quant_config, IPEXConfig)
qconfig = ipex.quantization.get_weight_only_quant_qconfig_mapping(
weight_dtype=weight_dtype,
lowp_mode=lowp_mode,
@ -269,6 +284,7 @@ class IPEXAWQLinearMethod(AWQLinearMethod):
bias=bias,
group_size=self.quant_config.group_size,
quant_method=IPEXConfig.IPEX_QUANT_METHOD_MAP["awq"], # type: ignore
weight_qscheme="sym" if self.quant_config.is_sym else "asym",
)
)