pytorch

6fd6fe0a - [PyTorch] [Model Tracer] Use c10::Synchronized<T> for kernel dtype tracer (#73723)

[PyTorch] [Model Tracer] Use c10::Synchronized<T> for kernel dtype tracer (#73723) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/73723 Currently, the kernel dtype tracer relies on the user to for advisory locking of the mutex when accessing shared data structures. This changes it to be mandatory locking using the `c10::Synchronized<T>` abstraction. ghstack-source-id: 150407247 Test Plan: Built model tracer successfully using: ``` buck build -c pt.disable_per_op_profiling=0 -c pt.enable_record_kernel_dtype=1 --show-output xplat/caffe2/fb/model_tracer:model_tracer ``` Reviewed By: JacobSzwejbka Differential Revision: D34604068 fbshipit-source-id: 1ec50ada81126927da7c13e16b331fb43b00e53b (cherry picked from commit 06c493c88e9af2845c364b5a3bff87f483f0fbfe)