pytorch

f754d250 - Use custom AppendOnlyList for op_events to reduce the number of atomic operations (#78643)

Use custom AppendOnlyList for op_events to reduce the number of atomic operations (#78643) Summary: - Use atomic counter in Block storage constructor and offset within the block to calculate correlation_id. - Implicitly deduce correlation id, no need to store it when profiling. Test Plan: Added test_profiler_correlation_id() in test_profiler.py to check the uniqueness of correlation id. To run the test: python test_profiler.py Differential Revision: D36793803 Pull Request resolved: https://github.com/pytorch/pytorch/pull/78643 Approved by: https://github.com/robieta