[RFC] Adding sliding window support (i.e. local attention) to Example 77 #2680
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Hi, trying to a review and some suggestions for further perf improvements.
tldr: Adding sliding window support. We can now pass in window_size_left and window_size_right to Example 77 FMHA.
For the most part, the implementation is pretty standard. In forward, when handling the mask -> unmask -> mask pattern, we adopt the dynamic dispatch mechanism, copied from the backward masking dynamic dispatch mechanism, instead of a 2-loop / 3-loop mechanism.
Features:
Does not support: