Support bfloat16 for adamw and adam optimizer. Fit the lr for pure bf16 training with tensor fusion. #48041
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sneaxiy
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FeixLiu
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* Fix scale kernel for low precision, cherry pick #50998. * Fix the FP16 precision problem of add_n. (#50129) * Change squared_l2_norm to reuse ReduceKernel, and register fp16 and bf16 kernel, which is cherry pick #48315. * Cherry-pick the fix of MPTypeTrait in KP, which is implemented in #50993. * Cherry-pick the multi-precision support of AdamW for bf16, #48041. * Fix compiling error. * Cherry-pick the fix of CubTensorReduceImpl for bfloat16 in #50993. * Fix unittest. --------- Co-authored-by: liuruyan <[email protected]>
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Support bfloat16 for adamw, and suit the lr for pure bf16 training.