pytorch

a02c573a - Record view stacks if running anomaly mode (#103185)

Record view stacks if running anomaly mode (#103185) Now, when you do an inplace mutation and the view is naughty, you get this message: ``` RuntimeError: A view was created in no_grad mode and is being modified inplace with grad mode enabled. Given that this use case is ambiguous and error-prone, it is forbidden. You can clarify your code by moving both the view and the inplace either both inside the no_grad block (if you don't want the inplace to be tracked) or both outside (if you want the inplace to be tracked). To find out where this view was allocated, run your entire forward region under anomaly mode (torch.autograd.detect_anomaly(check_nan=False)). ``` When you run under anomaly mode, you get: ``` RuntimeError: A view was created in no_grad mode and is being modified inplace with grad mode enabled. Given that this use case is ambiguous and error-prone, it is forbidden. You can clarify your code by moving both the view and the inplace either both inside the no_grad block (if you don't want the inplace to be tracked) or both outside (if you want the inplace to be tracked). This view was allocated at: File "/data/users/ezyang/c/pytorch/test/test_autograd.py", line 4299, in arglebargle File "/data/users/ezyang/c/pytorch/test/test_autograd.py", line 4306, in test_anomaly_gives_view_stack File "/home/ezyang/local/c/pytorch-env/lib/python3.10/unittest/case.py", line 549, in _callTestMethod File "/home/ezyang/local/c/pytorch-env/lib/python3.10/unittest/case.py", line 591, in run File "/data/users/ezyang/c/pytorch/torch/testing/_internal/common_utils.py", line 2266, in _run_with_retry File "/data/users/ezyang/c/pytorch/torch/testing/_internal/common_utils.py", line 2337, in run File "/home/ezyang/local/c/pytorch-env/lib/python3.10/unittest/case.py", line 650, in __call__ File "/home/ezyang/local/c/pytorch-env/lib/python3.10/unittest/suite.py", line 122, in run File "/home/ezyang/local/c/pytorch-env/lib/python3.10/unittest/suite.py", line 84, in __call__ File "/home/ezyang/local/c/pytorch-env/lib/python3.10/unittest/suite.py", line 122, in run File "/home/ezyang/local/c/pytorch-env/lib/python3.10/unittest/suite.py", line 84, in __call__ File "/home/ezyang/local/c/pytorch-env/lib/python3.10/unittest/runner.py", line 184, in run File "/home/ezyang/local/c/pytorch-env/lib/python3.10/unittest/main.py", line 271, in runTests File "/home/ezyang/local/c/pytorch-env/lib/python3.10/unittest/main.py", line 101, in __init__ File "/data/users/ezyang/c/pytorch/torch/testing/_internal/common_utils.py", line 894, in run_tests File "/data/users/ezyang/c/pytorch/test/test_autograd.py", line 11209, in <module> ``` Signed-off-by: Edward Z. Yang <ezyang@meta.com> Pull Request resolved: https://github.com/pytorch/pytorch/pull/103185 Approved by: https://github.com/zdevito