Fix specailization issue in keyed_jagged_index_select_dim1_forward_cuda #3578
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Summary:
lengths
is a tensor with symbolic shapes. Callinglen
on it will force specialization on it which will cause data dependent failure as shown below:{F1974383976}
tlparse: https://fburl.com/74rjmr8e
The fix is to replace
len
with equivalent operations which support symbolic shapes.Differential Revision: D67491452