Fix loading models with mismatched sizes#36463
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qubvel
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Feb 27, 2025
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| mismatched_names = [name for name, _, _ in mismatched_keys] | ||
| fixed_state_dict = {k: v for k, v in state_dict.items() if k not in mismatched_names} | ||
| fixed_state_dict = model_to_load._fix_state_dict_keys_on_load(fixed_state_dict) | ||
| model_to_load.load_state_dict(fixed_state_dict, strict=False, assign=assign_to_params_buffers) |
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strict=False does not allow loading weights with mismatched sizes, filter those keys first
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muellerzr
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Feb 27, 2025
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Thanks! This is a much better solution than the try/catch I initially was doing.
ArthurZucker
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Feb 28, 2025
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Super nice fix merging to get this asap
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garrett361
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Mar 4, 2025
* Fix loading model with mismatched sizes * trigger tests
garrett361
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to garrett361/transformers
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Mar 4, 2025
* Fix loading model with mismatched sizes * trigger tests
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What does this PR do?
Fix loading model with mismatched sizes, the bug was introduced since:
Reported in
Fixes: #36464
Minimal reproducing example:
cc @ArthurZucker