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aireenmei
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NuojCheng
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thank you for the fix!
gobbleturk
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Is there a compile test using vocab tiling that should have caught this? Can we add some test protecting this?
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Added and updated PR decription |
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Awesome, thank you for the test!
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Description
Encountered this error when testing gemma4 with bfloat16 and
num_vocab_tiling=8.The root cause is the incompatibility of weight_dtype=bfloat16 and vocab_tiling. In my test, I was using
weight_dtype=float32 dtype=bfloat16, but gemma4 has a bug that uses config.dtype (should use config.weight_dtype) to initiate layer scalar, resulting in a bfloat16 weight that causes this error.This PR fix:
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