GitLab

* fix dtypes in fused attn bwd for FP8
Signed-off-by: Charlene Yang <8636796+cyanguwa@users.noreply.github.com>

* add comments for dtypes
Signed-off-by: Charlene Yang <8636796+cyanguwa@users.noreply.github.com>

* remove redundant qkv_dtype in fwd
Signed-off-by: Charlene Yang <8636796+cyanguwa@users.noreply.github.com>

* remove Nones in bwd returns
Signed-off-by: Charlene Yang <8636796+cyanguwa@users.noreply.github.com>

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Signed-off-by: Charlene Yang <8636796+cyanguwa@users.noreply.github.com>