Support 3D attention mask #5887
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wangyems
previously approved these changes
Nov 21, 2020
wangyems
approved these changes
Nov 21, 2020
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Description:
Provide flexible for testing different attention mask (like sliding window in longformer).
Also move some kernel API from attention_impl.cu to attention_impl.h, so that it could be used by Longformer attention operator in the future.
Motivation and Context