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[Bugfix] Fix transformers model impl ignored for mixtral quant #18602

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Merged
merged 1 commit into from
May 23, 2025
Merged

[Bugfix] Fix transformers model impl ignored for mixtral quant #18602

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9 changes: 4 additions & 5 deletions vllm/model_executor/model_loader/utils.py
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Original file line number Diff line number Diff line change
Expand Up @@ -225,17 +225,16 @@ def get_model_architecture(
"fp8", "compressed-tensors", "gptq_marlin", "awq_marlin", "quark"
]

if (model_config.quantization is not None
and model_config.quantization not in mixtral_supported
and "MixtralForCausalLM" in architectures):
architectures = ["QuantMixtralForCausalLM"]

vllm_supported_archs = ModelRegistry.get_supported_archs()
vllm_not_supported = not any(arch in vllm_supported_archs
for arch in architectures)
if (model_config.model_impl == ModelImpl.TRANSFORMERS or
model_config.model_impl != ModelImpl.VLLM and vllm_not_supported):
architectures = resolve_transformers_arch(model_config, architectures)
elif (model_config.quantization is not None
and model_config.quantization not in mixtral_supported
and "MixtralForCausalLM" in architectures):
architectures = ["QuantMixtralForCausalLM"]

model_cls, arch = ModelRegistry.resolve_model_cls(architectures)
if model_config.task == "embed":
Expand Down