Extend forward fast layer_norm kernel to support more dimensions. #43118
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… add_fused_dropout_add_ln_layer
… rename_dropout_is_test
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… extend_fast_ln_kernel
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Jun 7, 2022
…ddlePaddle#43118) * extend forward fast_ln_kernel to support more column values.
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PR types
Function optimization
PR changes
OPs
Describe
Before, fast layer_norm kernel can only support cases when cols is 1024(#39167). To make full use of the fast kernel, , #42282 and this PR try to extend to more col values.
性能：
