pytorch

5a8ad663 - Do not show cuda stats in autograd profiler when `use_cuda=False` (#29666)

Do not show cuda stats in autograd profiler when `use_cuda=False` (#29666) Summary: Example ```python import torch x = torch.randn(1) with torch.autograd.profiler.profile(use_cuda=False) as prof: x + x print(prof.key_averages().table(sort_by='cpu_time_total')) ``` Before: ``` ------- --------------- --------------- --------------- --------------- --------------- --------------- --------------- --------------- --------------- Name Self CPU total % Self CPU total CPU total % CPU total CPU time avg CUDA total % CUDA total CUDA time avg Number of Calls ------- --------------- --------------- --------------- --------------- --------------- --------------- --------------- --------------- --------------- add 100.00% 25.781ms 100.00% 25.781ms 25.781ms NaN 0.000us 0.000us 1 ------- --------------- --------------- --------------- --------------- --------------- --------------- --------------- --------------- --------------- Self CPU time total: 25.781ms CUDA time total: 0.000us ``` After: ``` ------- --------------- --------------- --------------- --------------- --------------- --------------- Name Self CPU total % Self CPU total CPU total % CPU total CPU time avg Number of Calls ------- --------------- --------------- --------------- --------------- --------------- --------------- add 100.00% 25.037ms 100.00% 25.037ms 25.037ms 1 ------- --------------- --------------- --------------- --------------- --------------- --------------- Self CPU time total: 25.037ms ``` Pull Request resolved: https://github.com/pytorch/pytorch/pull/29666 Differential Revision: D18458828 Pulled By: bddppq fbshipit-source-id: d96ef4cec8b1e85b77c211292a3099048882734d