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[Minor] Support init lazy storages with add #2028

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Merged
merged 1 commit into from
Mar 20, 2024
Merged

[Minor] Support init lazy storages with add #2028

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8 changes: 4 additions & 4 deletions torchrl/data/replay_buffers/writers.py
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Original file line number Diff line number Diff line change
Expand Up @@ -80,12 +80,12 @@ def _replicate_index(self, index):
# elements truly written when the storage is multidim
if self._storage.ndim == 1:
return index
device = (
index.device if isinstance(index, torch.Tensor) else torch.device("cpu")
)
mesh = torch.stack(
torch.meshgrid(
*(
torch.arange(dim, device=index.device)
for dim in self._storage.shape[1:]
)
*(torch.arange(dim, device=device) for dim in self._storage.shape[1:])
),
-1,
).flatten(0, -2)
Expand Down