# Motivation
If we would like to reinitialize DDP with a different PG with `torch.compile`, we need to do the following:
```
del old_ddp
del old_pg
pg = init_pg(...)
ddp = DDP(pg)
model = torch.compile(DDP)
```
This results in recompilation of the entire model and is very expensive. Since the only thing we need to update is the PG, we should be able to do this without having to compile the model again.
# Proposal
As a result, in this PR I've introduced an `_update_process_group` API which can dynamically update the underlying ProcessGroup used by DDP without needing to reinitialize DDP again.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/113580
Approved by: https://github.com/fduwjj
Fixes#112604
Fixes docstring by following `pydocstyle` outputs.
- torch/nn/parallel/distributed.py
Before: 84
```
torch/nn/parallel/distributed.py:1 at module level:
D100: Missing docstring in public module
torch/nn/parallel/distributed.py:92 in private function `_cast_buffers`:
D200: One-line docstring should fit on one line with quotes (found 3)
torch/nn/parallel/distributed.py:103 in private function `_setup_mixed_precision_params`:
D200: One-line docstring should fit on one line with quotes (found 3)
torch/nn/parallel/distributed.py:103 in private function `_setup_mixed_precision_params`:
D401: First line should be in imperative mood (perhaps 'Create', not 'Creates')
torch/nn/parallel/distributed.py:143 in private function `_find_tensors`:
D200: One-line docstring should fit on one line with quotes (found 3)
torch/nn/parallel/distributed.py:273 in private method `__init__`:
D200: One-line docstring should fit on one line with quotes (found 3)
torch/nn/parallel/distributed.py:273 in private method `__init__`:
D401: First line should be in imperative mood (perhaps 'Set', not 'Sets')
torch/nn/parallel/distributed.py:287 in private method `main_hook`:
D205: 1 blank line required between summary line and description (found 0)
torch/nn/parallel/distributed.py:287 in private method `main_hook`:
D400: First line should end with a period (not 'd')
torch/nn/parallel/distributed.py:324 in private method `post_hook`:
D205: 1 blank line required between summary line and description (found 0)
torch/nn/parallel/distributed.py:324 in private method `post_hook`:
D400: First line should end with a period (not 'l')
torch/nn/parallel/distributed.py:324 in private method `post_hook`:
D401: First line should be in imperative mood (perhaps 'Sync', not 'Syncs')
torch/nn/parallel/distributed.py:332 in public class `DistributedDataParallel`:
D205: 1 blank line required between summary line and description (found 0)
torch/nn/parallel/distributed.py:332 in public class `DistributedDataParallel`:
D400: First line should end with a period (not 'n')
torch/nn/parallel/distributed.py:633 in public method `__init__`:
D107: Missing docstring in __init__
torch/nn/parallel/distributed.py:960 in private method `_fire_reducer_autograd_hook`:
D205: 1 blank line required between summary line and description (found 0)
torch/nn/parallel/distributed.py:960 in private method `_fire_reducer_autograd_hook`:
D401: First line should be in imperative mood (perhaps 'Fire', not 'Fires')
torch/nn/parallel/distributed.py:969 in private method `_root_copy_hook`:
D205: 1 blank line required between summary line and description (found 0)
torch/nn/parallel/distributed.py:969 in private method `_root_copy_hook`:
D400: First line should end with a period (not 's')
torch/nn/parallel/distributed.py:1012 in private method `_module_wait_for_copy_hook`:
D205: 1 blank line required between summary line and description (found 0)
torch/nn/parallel/distributed.py:1012 in private method `_module_wait_for_copy_hook`:
D400: First line should end with a period (not 'e')
torch/nn/parallel/distributed.py:1050 in private method `_ddp_init_helper`:
D205: 1 blank line required between summary line and description (found 0)
torch/nn/parallel/distributed.py:1050 in private method `_ddp_init_helper`:
D400: First line should end with a period (not ':')
torch/nn/parallel/distributed.py:1050 in private method `_ddp_init_helper`:
D401: First line should be in imperative mood (perhaps 'Initialize', not 'Initialization')
torch/nn/parallel/distributed.py:1146 in public method `__getstate__`:
D105: Missing docstring in magic method
torch/nn/parallel/distributed.py:1154 in public method `__setstate__`:
D105: Missing docstring in magic method
torch/nn/parallel/distributed.py:1222 in private method `_assign_modules_buffers`:
D205: 1 blank line required between summary line and description (found 0)
torch/nn/parallel/distributed.py:1222 in private method `_assign_modules_buffers`:
D400: First line should end with a period (not 'o')
torch/nn/parallel/distributed.py:1222 in private method `_assign_modules_buffers`:
D401: First line should be in imperative mood (perhaps 'Assign', not 'Assigns')
torch/nn/parallel/distributed.py:1277 in private method `_get_parameters`:
D200: One-line docstring should fit on one line with quotes (found 3)
torch/nn/parallel/distributed.py:1277 in private method `_get_parameters`:
D400: First line should end with a period (not 's')
torch/nn/parallel/distributed.py:1277 in private method `_get_parameters`:
D401: First line should be in imperative mood (perhaps 'Return', not 'Returns')
torch/nn/parallel/distributed.py:1312 in public method `no_sync`:
D205: 1 blank line required between summary line and description (found 0)
torch/nn/parallel/distributed.py:1312 in public method `no_sync`:
D400: First line should end with a period (not 'P')
torch/nn/parallel/distributed.py:1312 in public method `no_sync`:
D401: First line should be in imperative mood; try rephrasing (found 'A')
torch/nn/parallel/distributed.py:1340 in private method `_get_active_ddp_module`:
D200: One-line docstring should fit on one line with quotes (found 3)
torch/nn/parallel/distributed.py:1340 in private method `_get_active_ddp_module`:
D403: First word of the first line should be properly capitalized ('Torchdynamo', not 'TorchDynamo')
torch/nn/parallel/distributed.py:1517 in public method `forward`:
D102: Missing docstring in public method
torch/nn/parallel/distributed.py:1527 in public method `scatter`:
D102: Missing docstring in public method
torch/nn/parallel/distributed.py:1530 in public method `to_kwargs`:
D102: Missing docstring in public method
torch/nn/parallel/distributed.py:1539 in public method `gather`:
D102: Missing docstring in public method
torch/nn/parallel/distributed.py:1542 in public method `train`:
D102: Missing docstring in public method
torch/nn/parallel/distributed.py:1617 in public method `join`:
D205: 1 blank line required between summary line and description (found 0)
torch/nn/parallel/distributed.py:1617 in public method `join`:
D400: First line should end with a period (not 'f')
torch/nn/parallel/distributed.py:1617 in public method `join`:
D401: First line should be in imperative mood; try rephrasing (found 'A')
torch/nn/parallel/distributed.py:1723 in public method `join_hook`:
D205: 1 blank line required between summary line and description (found 0)
torch/nn/parallel/distributed.py:1723 in public method `join_hook`:
D400: First line should end with a period (not 'y')
torch/nn/parallel/distributed.py:1723 in public method `join_hook`:
D401: First line should be in imperative mood (perhaps 'Return', not 'Returns')
torch/nn/parallel/distributed.py:1752 in public method `join_device`:
D102: Missing docstring in public method
torch/nn/parallel/distributed.py:1756 in public method `join_process_group`:
D102: Missing docstring in public method
torch/nn/parallel/distributed.py:1765 in private method `_register_buffer_comm_hook`:
D205: 1 blank line required between summary line and description (found 0)
torch/nn/parallel/distributed.py:1765 in private method `_register_buffer_comm_hook`:
D400: First line should end with a period (not 'e')
torch/nn/parallel/distributed.py:1765 in private method `_register_buffer_comm_hook`:
D401: First line should be in imperative mood (perhaps 'Allow', not 'Allows')
torch/nn/parallel/distributed.py:1805 in public method `register_comm_hook`:
D205: 1 blank line required between summary line and description (found 0)
torch/nn/parallel/distributed.py:1805 in public method `register_comm_hook`:
D400: First line should end with a period (not 'a')
torch/nn/parallel/distributed.py:1805 in public method `register_comm_hook`:
D401: First line should be in imperative mood (perhaps 'Register', not 'Registers')
torch/nn/parallel/distributed.py:1887 in private method `_register_builtin_comm_hook`:
D205: 1 blank line required between summary line and description (found 0)
torch/nn/parallel/distributed.py:1887 in private method `_register_builtin_comm_hook`:
D400: First line should end with a period (not 'P')
torch/nn/parallel/distributed.py:1887 in private method `_register_builtin_comm_hook`:
D401: First line should be in imperative mood (perhaps 'Register', not 'Registers')
torch/nn/parallel/distributed.py:1914 in private method `_register_fused_optim`:
D205: 1 blank line required between summary line and description (found 0)
torch/nn/parallel/distributed.py:1914 in private method `_register_fused_optim`:
D400: First line should end with a period (not 'a')
torch/nn/parallel/distributed.py:1914 in private method `_register_fused_optim`:
D401: First line should be in imperative mood (perhaps 'Register', not 'Registers')
torch/nn/parallel/distributed.py:2005 in public method `will_sync_module_buffers`:
D102: Missing docstring in public method
torch/nn/parallel/distributed.py:2060 in private method `_default_broadcast_coalesced`:
D205: 1 blank line required between summary line and description (found 0)
torch/nn/parallel/distributed.py:2060 in private method `_default_broadcast_coalesced`:
D400: First line should end with a period (not 'e')
torch/nn/parallel/distributed.py:2128 in private method `_get_data_parallel_params`:
D200: One-line docstring should fit on one line with quotes (found 3)
torch/nn/parallel/distributed.py:2128 in private method `_get_data_parallel_params`:
D401: First line should be in imperative mood (perhaps 'Return', not 'Returns')
torch/nn/parallel/distributed.py:2141 in private method `_set_params_and_buffers_to_ignore_for_model`:
D205: 1 blank line required between summary line and description (found 0)
torch/nn/parallel/distributed.py:2141 in private method `_set_params_and_buffers_to_ignore_for_model`:
D400: First line should end with a period (not 'r')
torch/nn/parallel/distributed.py:2141 in private method `_set_params_and_buffers_to_ignore_for_model`:
D401: First line should be in imperative mood (perhaps 'Set', not 'Sets')
torch/nn/parallel/distributed.py:2170 in private method `_get_ddp_logging_data`:
D205: 1 blank line required between summary line and description (found 0)
torch/nn/parallel/distributed.py:2170 in private method `_get_ddp_logging_data`:
D400: First line should end with a period (not 's')
torch/nn/parallel/distributed.py:2170 in private method `_get_ddp_logging_data`:
D401: First line should be in imperative mood; try rephrasing (found 'This')
torch/nn/parallel/distributed.py:2184 in private method `_set_ddp_runtime_logging_sample_rate`:
D205: 1 blank line required between summary line and description (found 0)
torch/nn/parallel/distributed.py:2184 in private method `_set_ddp_runtime_logging_sample_rate`:
D400: First line should end with a period (not 'g')
torch/nn/parallel/distributed.py:2184 in private method `_set_ddp_runtime_logging_sample_rate`:
D401: First line should be in imperative mood; try rephrasing (found 'This')
torch/nn/parallel/distributed.py:2202 in private method `_set_static_graph`:
D205: 1 blank line required between summary line and description (found 0)
torch/nn/parallel/distributed.py:2202 in private method `_set_static_graph`:
D400: First line should end with a period (not 'l')
torch/nn/parallel/distributed.py:2202 in private method `_set_static_graph`:
D401: First line should be in imperative mood; try rephrasing (found 'It')
torch/nn/parallel/distributed.py:2227 in private method `_remove_autograd_hooks`:
D200: One-line docstring should fit on one line with quotes (found 3)
torch/nn/parallel/distributed.py:2227 in private method `_remove_autograd_hooks`:
D401: First line should be in imperative mood (perhaps 'Remove', not 'Removes')
torch/nn/parallel/distributed.py:2233 in private method `_check_reducer_finalized`:
D205: 1 blank line required between summary line and description (found 0)
torch/nn/parallel/distributed.py:2233 in private method `_check_reducer_finalized`:
D400: First line should end with a period (not 'd')
torch/nn/parallel/distributed.py:2233 in private method `_check_reducer_finalized`:
D401: First line should be in imperative mood (perhaps 'Check', not 'Checks')
84
```
After: 12
```
torch/nn/parallel/distributed.py:1 at module level:
D100: Missing docstring in public module
torch/nn/parallel/distributed.py:618 in public method `__init__`:
D107: Missing docstring in __init__
torch/nn/parallel/distributed.py:1133 in public method `__getstate__`:
D105: Missing docstring in magic method
torch/nn/parallel/distributed.py:1141 in public method `__setstate__`:
D105: Missing docstring in magic method
torch/nn/parallel/distributed.py:1503 in public method `forward`:
D102: Missing docstring in public method
torch/nn/parallel/distributed.py:1513 in public method `scatter`:
D102: Missing docstring in public method
torch/nn/parallel/distributed.py:1516 in public method `to_kwargs`:
D102: Missing docstring in public method
torch/nn/parallel/distributed.py:1525 in public method `gather`:
D102: Missing docstring in public method
torch/nn/parallel/distributed.py:1528 in public method `train`:
D102: Missing docstring in public method
torch/nn/parallel/distributed.py:1734 in public method `join_device`:
D102: Missing docstring in public method
torch/nn/parallel/distributed.py:1738 in public method `join_process_group`:
D102: Missing docstring in public method
torch/nn/parallel/distributed.py:1986 in public method `will_sync_module_buffers`:
D102: Missing docstring in public method
12
```
- torch/nn/utils/_named_member_accessor.py
Before: 23
```
torch/nn/utils/_named_member_accessor.py:12 in public function `set_tensor`:
D103: Missing docstring in public function
torch/nn/utils/_named_member_accessor.py:29 in public function `swap_tensor`:
D103: Missing docstring in public function
torch/nn/utils/_named_member_accessor.py:85 in public function `swap_submodule`:
D103: Missing docstring in public function
torch/nn/utils/_named_member_accessor.py:109 in public class `NamedMemberAccessor`:
D205: 1 blank line required between summary line and description (found 0)
torch/nn/utils/_named_member_accessor.py:109 in public class `NamedMemberAccessor`:
D400: First line should end with a period (not 's')
torch/nn/utils/_named_member_accessor.py:115 in public method `__init__`:
D107: Missing docstring in __init__
torch/nn/utils/_named_member_accessor.py:122 in public method `get_submodule`:
D205: 1 blank line required between summary line and description (found 0)
torch/nn/utils/_named_member_accessor.py:155 in public method `swap_submodule`:
D205: 1 blank line required between summary line and description (found 0)
torch/nn/utils/_named_member_accessor.py:164 in public method `get_tensor`:
D205: 1 blank line required between summary line and description (found 0)
torch/nn/utils/_named_member_accessor.py:185 in public method `set_tensor`:
D205: 1 blank line required between summary line and description (found 0)
torch/nn/utils/_named_member_accessor.py:194 in public method `del_tensor`:
D205: 1 blank line required between summary line and description (found 0)
torch/nn/utils/_named_member_accessor.py:211 in public method `swap_tensor`:
D205: 1 blank line required between summary line and description (found 0)
torch/nn/utils/_named_member_accessor.py:224 in public method `get_tensors`:
D205: 1 blank line required between summary line and description (found 0)
torch/nn/utils/_named_member_accessor.py:233 in public method `set_tensors`:
D205: 1 blank line required between summary line and description (found 0)
torch/nn/utils/_named_member_accessor.py:249 in public method `set_tensors_dict`:
D205: 1 blank line required between summary line and description (found 0)
torch/nn/utils/_named_member_accessor.py:261 in public method `del_tensors`:
D205: 1 blank line required between summary line and description (found 0)
torch/nn/utils/_named_member_accessor.py:276 in public method `swap_tensors`:
D205: 1 blank line required between summary line and description (found 0)
torch/nn/utils/_named_member_accessor.py:296 in public method `swap_tensors_dict`:
D205: 1 blank line required between summary line and description (found 0)
torch/nn/utils/_named_member_accessor.py:325 in public method `check_keys`:
D200: One-line docstring should fit on one line with quotes (found 3)
torch/nn/utils/_named_member_accessor.py:340 in public method `named_parameters`:
D200: One-line docstring should fit on one line with quotes (found 3)
torch/nn/utils/_named_member_accessor.py:349 in public method `named_buffers`:
D200: One-line docstring should fit on one line with quotes (found 3)
torch/nn/utils/_named_member_accessor.py:358 in public method `named_tensors`:
D200: One-line docstring should fit on one line with quotes (found 3)
torch/nn/utils/_named_member_accessor.py:368 in public method `named_modules`:
D200: One-line docstring should fit on one line with quotes (found 3)
23
```
After: 4
```
torch/nn/utils/_named_member_accessor.py:12 in public function `set_tensor`:
D103: Missing docstring in public function
torch/nn/utils/_named_member_accessor.py:29 in public function `swap_tensor`:
D103: Missing docstring in public function
torch/nn/utils/_named_member_accessor.py:85 in public function `swap_submodule`:
D103: Missing docstring in public function
torch/nn/utils/_named_member_accessor.py:116 in public method `__init__`:
D107: Missing docstring in __init__
4
```
- torch/nn/utils/_per_sample_grad.py
Before: 3
```
torch/nn/utils/_per_sample_grad.py:12 in public function `call_for_per_sample_grads`:
D205: 1 blank line required between summary line and description (found 0)
torch/nn/utils/_per_sample_grad.py:12 in public function `call_for_per_sample_grads`:
D400: First line should end with a period (not ')')
torch/nn/utils/_per_sample_grad.py:12 in public function `call_for_per_sample_grads`:
D402: First line should not be the function's "signature"
3
```
After: 0
```
0
```
- torch/nn/utils/init.py
Before: 3
```
torch/nn/utils/init.py:1 at module level:
D100: Missing docstring in public module
torch/nn/utils/init.py:6 in public function `skip_init`:
D205: 1 blank line required between summary line and description (found 0)
torch/nn/utils/init.py:6 in public function `skip_init`:
D400: First line should end with a period (not 'g')
3
```
After: 1
```
torch/nn/utils/init.py:1 at module level:
D100: Missing docstring in public module
1
```
- torch/nn/utils/memory_format.py
Before: 4
```
torch/nn/utils/memory_format.py:1 at module level:
D100: Missing docstring in public module
torch/nn/utils/memory_format.py:5 in public function `convert_conv2d_weight_memory_format`:
D202: No blank lines allowed after function docstring (found 1)
torch/nn/utils/memory_format.py:5 in public function `convert_conv2d_weight_memory_format`:
D205: 1 blank line required between summary line and description (found 0)
torch/nn/utils/memory_format.py:5 in public function `convert_conv2d_weight_memory_format`:
D400: First line should end with a period (not '`')
4
```
After: 1
```
torch/nn/utils/memory_format.py:1 at module level:
D100: Missing docstring in public module
1
```
Pull Request resolved: https://github.com/pytorch/pytorch/pull/112657
Approved by: https://github.com/fduwjj
This updates ruff to 0.285 which is faster, better, and have fixes a bunch of false negatives with regards to fstrings.
I also enabled RUF017 which looks for accidental quadratic list summation. Luckily, seems like there are no instances of it in our codebase, so enabling it so that it stays like that. :)
Pull Request resolved: https://github.com/pytorch/pytorch/pull/107519
Approved by: https://github.com/ezyang
This updates ruff to 0.285 which is faster, better, and have fixes a bunch of false negatives with regards to fstrings.
I also enabled RUF017 which looks for accidental quadratic list summation. Luckily, seems like there are no instances of it in our codebase, so enabling it so that it stays like that. :)
Pull Request resolved: https://github.com/pytorch/pytorch/pull/107519
Approved by: https://github.com/ezyang
Adds support for multiple forward before bwd call for
static_graph=True.
There are 2 changes:
1) Change tracking of accounting of when to populate static grap related maps
from relying on forward iteration to backward calls
2) In DDP python, don't rely on num_forward iterations == 1 to enqueue the
delay allreduce. Instead use a flag.
Differential Revision: [D46673736](https://our.internmc.facebook.com/intern/diff/D46673736/)
Pull Request resolved: https://github.com/pytorch/pytorch/pull/103487
Approved by: https://github.com/awgu
Summary: In cases where DDP backward is not finalized, the error is raised only in the next forward iteration of DDP. However, if there are other collective calls between those two points, training scripts could potentially get stuck.
As a result, there should be a way to check if DDP finalized after calling `.backward()`. To address this, I've added a `_check_reducer_finalized` method to validate that DDP indeed did successfully finish reduction.
Test Plan: Added unit tests.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/100773
Approved by: https://github.com/rohan-varma
Summary: Disable buffers sync in _sync_module_states(...) when broadcast_buffers is False. This change will memory usage when a model has huge buffers and does not need broadcast buffers.
Test Plan: .
Differential Revision: D45610709
Pull Request resolved: https://github.com/pytorch/pytorch/pull/100729
Approved by: https://github.com/mrshenli
Summary:
When creating a new DDP instance for the same model when an old DDP instance existed, the autograd hooks from the old DDP instance might not be cleared. Also, relying on python gc to clear out old autograd hooks is fragile and may not work 100% of the time.
As a result, in this PR I'm adding a way to explicitly remove these hooks from DDP
Test Plan:
Unit test added
Pull Request resolved: https://github.com/pytorch/pytorch/pull/96490
Approved by: https://github.com/zhaojuanmao, https://github.com/rohan-varma
Summary: Enable the functionality of delaying all reduce in DDP to specify the parameters whose all reduce will be hooked to a specific param. This prevents AllReduce blocking All2All in some recommendation models.
Test Plan: GitHub CI.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/96673
Approved by: https://github.com/zhaojuanmao
Implements native mixed precision support for DDP in a similar fashion to how it is enabled for FSDP. The implementation works as follows:
1. In DDP init, we save `_mp_param` and `_fp_param` variables to manage mixed precision parameter usage. In particular, _mp_param will represent the parameter in the reduced precision, while _fp_param will represent the param in regular precision. During forward/backward, we swap back and forth as needed.
2. The root module gets a root pre-forward hook that kicks off copies to the reduced precision for all submodules. An event is recorded for each submodule to allow for waiting, as we run these asynchronously.
3. Each module gets a pre-forward hook that waits on its corresponding event. note that modules might be reused during training, in this case the wait is only done for the first module. After this wait, the module's parameters are in reduced precision.
4. In the pre-forward hook, we register a backward hook on the lower precision parameters in order to run reduced precision allreduce + parameter upcast. We can't rely on the Reducer's constructor setting up these hooks because the gradient is accumulated on the low precision param, so we need to register them ourselves.
5. In the backward pass, when the hook runs, we first run allreduce + divide in the reduced precision. Next, we upcast parameters and gradients back to fp32 asynchronously. We also queue a callback at the end of backward to wait on these upcasts so that the upcast is complete before optim.step() runs.
6. Parameters that don't require grad are also cast since they may be used in computation, they are upcast back in the final autograd callback.
7. DDP Ignored parameters are not touched.
Follow-ups:
1. Unify comm hooks and make it work with apply optimizer in backward
2. implement keep_low_precision_grads,
3. allow BN, LN, or custom units to run in reduced precision,
4. support for cast_forward_inputs
5. Unify certain APIs / helpers with FSDP where possible, such as for _cast_forward_inputs
6. Integrate this with replicate() API.
7. The order in which we kick off copies and wait for them is set by the iteration order of module.modules(), but this might not be how the modules are used in the actual training. In the worst case, the last module in module.modules() could be used first which would result in waiting for all copies unnecessarily. For static graphs, we should record the module execution order and copy / wait in this order.
8. Entirely unused modules probably don't need to be cast.
Differential Revision: [D42515803](https://our.internmc.facebook.com/intern/diff/D42515803/)
Pull Request resolved: https://github.com/pytorch/pytorch/pull/92882
Approved by: https://github.com/zhaojuanmao
Applies the remaining flake8-comprehension fixes and checks. This changes replace all remaining unnecessary generator expressions with list/dict/set comprehensions which are more succinct, performant, and better supported by our torch.jit compiler. It also removes useless generators such as 'set(a for a in b)`, resolving it into just the set call.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/94676
Approved by: https://github.com/ezyang
Applies some more harmless pyupgrades. This one gets rid of deprecated aliases in unit_tests and more upgrades yield for loops into yield from generators which are more performance and propagates more information / exceptions from original generator. This is the modern recommended way of forwarding generators.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/94309
Approved by: https://github.com/albanD
removes this unused var, the overall buffer comm hook feature is also not being used, we should deprecate / remove it as it is still a private API.
Fixes #ISSUE_NUMBER
Pull Request resolved: https://github.com/pytorch/pytorch/pull/93128
Approved by: https://github.com/awgu
