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[Misc] Update WeightsMapper for qwen2-vl/qwen2.5-vl (#19054)

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Signed-off-by: Isotr0py <2037008807@qq.com>
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Isotr0py 2025-06-03 17:08:20 +08:00 committed by GitHub
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2 changed files with 18 additions and 8 deletions
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13
vllm/model_executor/models/qwen2_5_vl.py
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@ -823,10 +823,15 @@ class Qwen2_5_VLForConditionalGeneration(nn.Module, SupportsMultiModal,
SupportsLoRA, SupportsPP): SupportsLoRA, SupportsPP):
# To ensure correct weight loading and mapping. # To ensure correct weight loading and mapping.
hf_to_vllm_mapper = WeightsMapper(orig_to_new_prefix={ hf_to_vllm_mapper = WeightsMapper(
"lm_head.": "language_model.lm_head.", orig_to_new_prefix={
"model.": "language_model.model.", # mapping for new names in checkpoint saved after transformers v4.52
}) "model.language_model.": "language_model.model.",
"model.visual.": "visual.",
# mapping for original checkpoint
"lm_head.": "language_model.lm_head.",
"model.": "language_model.model.",
})
def __init__(self, *, vllm_config: VllmConfig, prefix: str = ""): def __init__(self, *, vllm_config: VllmConfig, prefix: str = ""):
super().__init__() super().__init__()

13
vllm/model_executor/models/qwen2_vl.py
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@ -1071,10 +1071,15 @@ class Qwen2VLForConditionalGeneration(nn.Module, SupportsMultiModal,
SupportsLoRA, SupportsPP): SupportsLoRA, SupportsPP):
# To ensure correct weight loading and mapping. # To ensure correct weight loading and mapping.
hf_to_vllm_mapper = WeightsMapper(orig_to_new_prefix={ hf_to_vllm_mapper = WeightsMapper(
"lm_head.": "language_model.lm_head.", orig_to_new_prefix={
"model.": "language_model.model.", # mapping for new names in checkpoint saved after transformers v4.52
}) "model.language_model.": "language_model.model.",
"model.visual.": "visual.",
# mapping for original checkpoint
"lm_head.": "language_model.lm_head.",
"model.": "language_model.model.",
})
def __init__(self, *, vllm_config: VllmConfig, prefix: str = ""): def __init__(self, *, vllm_config: VllmConfig, prefix: str = ""):
super().__init__() super().__init__()