[https://nvbugs/5385987][fix] Fix Qwen2 quantization issue by pinning transformers version #6673
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tensorrt_llm/tools/multimodal_builder.py (1)
1392-1400: Good version-based compatibility handling.The conditional constructor logic properly addresses API changes between transformers versions. The implementation correctly handles different constructor signatures and head_dim calculations for versions before and after 4.53.0.
Consider using
packaging.version.Versionfor more robust version comparison:+from packaging import version + def __init__(self, config: Qwen2VLVisionConfig): - if transformers.__version__ >= '4.53.0': + if version.parse(transformers.__version__) >= version.parse('4.53.0'): super().__init__(config) self.head_dim = config.embed_dim // config.num_heads else: num_heads = config.num_heads dim = config.embed_dim super().__init__(dim, num_heads) self.head_dim = dim // num_headsThis would provide more reliable version comparison handling edge cases like pre-release versions or different version formats.
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tensorrt_llm/tools/multimodal_builder.py (1)
1325-1325: Import placement is acceptable.The local import of
transformerswithin the function is appropriate since it's only used for version checking in this specific function. This follows the principle of importing close to usage.
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quantize_by_modelopt.py (export_tensorrt_llm_checkpoint) Signed-off-by: Chang Liu <[email protected]>
Signed-off-by: Chang Liu <[email protected]>
Signed-off-by: Chang Liu <[email protected]>
Signed-off-by: Chang Liu <[email protected]>
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Signed-off-by: Chang Liu (Enterprise Products) <[email protected]>
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… pinning transformers version (NVIDIA#6673)" This reverts commit be9dd47.
With transformers 4.53,
export_tensorrt_llm_checkpoint(from modelopt) failed with certain models like qwen2.Summary by CodeRabbit
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