Fix failure on DeBERTa(base/v2/sew_d) fp16 training with ONNX Runtime #18585
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lewtun
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Aug 17, 2022
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lewtun
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Thanks a lot for fixing this @JingyaHuang - the changes also LGTM 🚀 !
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Context
It was reported in optimum huggingface/optimum#305 that the mixed-precision training on DeBERTa with optimum.onnxruntime.ORTTrainer is broken.
After investigation, the break comes from mismatched inputs dtype for some Matmul nodes. In #18272, some sqrt results are cast to fp32, and they need to be re-casted to fp16 before Matmul ops, and this PR is supposed to correct the dtype.
Besides, this PR also fix the tracing of DeBERTa which haven't been fixed in #18272
Fixes #huggingface/optimum#305
Fixes #18199
Who can review?
@michaelbenayoun @LysandreJik @sgugger