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[Bug fixes] fix opt dtype up-casting #7699

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[Bug fixes] fix opt dtype up-casting #7699

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4 changes: 2 additions & 2 deletions paddlenlp/transformers/opt/modeling.py
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Original file line number Diff line number Diff line change
Expand Up @@ -81,10 +81,10 @@ def _expand_mask(mask, tgt_length):
tgt_length = tgt_length if tgt_length is not None else src_length

expanded_mask = ~(paddle.cast(mask[:, None, None, :], "bool"))
expanded_mask = paddle.cast(expanded_mask, dtype=paddle.float32)
expanded_mask = paddle.cast(expanded_mask, dtype=mask.dtype)

expanded_mask = expanded_mask.expand([batch_size, 1, tgt_length, src_length])
expanded_mask = expanded_mask * float(finfo(paddle.get_default_dtype()).min)
expanded_mask = expanded_mask * float(finfo(expanded_mask.dtype).min)
return expanded_mask


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