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Mark weights unbacked #2583

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Mark weights unbacked #2583

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5 changes: 4 additions & 1 deletion torchrec/pt2/utils.py
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Original file line number Diff line number Diff line change
Expand Up @@ -75,12 +75,15 @@ def kjt_for_pt2_tracing(

values = kjt.values().long()
torch._dynamo.decorators.mark_unbacked(values, 0)
weights = kjt.weights_or_none()
if weights is not None:
torch._dynamo.decorators.mark_unbacked(weights, 0)

return KeyedJaggedTensor(
keys=kjt.keys(),
values=values,
lengths=lengths,
weights=kjt.weights_or_none(),
weights=weights,
stride=stride if not is_vb else None,
stride_per_key_per_rank=kjt.stride_per_key_per_rank() if is_vb else None,
inverse_indices=inverse_indices,
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