pytorch

bcbe0720 - Improve logic for S3 stats gathering. Uses automatic SLOW_TESTS. (#53549)

Improve logic for S3 stats gathering. Uses automatic SLOW_TESTS. (#53549) Summary: This PR: 1. refactors the logic for S3 stats gathering. 2. Renames SLOW_TESTS to TARGET_DET_LIST to disambiguate and remove confusion with slowTest 2. detects slow tests (tests with time > 5min) to add to the TARGET_DET_LIST based on results in S3 from the previous nightly. Pull Request resolved: https://github.com/pytorch/pytorch/pull/53549 Test Plan: Set CIRCLE_JOB to your favorite CI job (like `pytorch_linux_bionic_py3_8_gcc9_coverage_test1`). Run `python test/run_test.py --determine-from=<your fave pytorch files>` e.g., `python test/run_test.py --determine-from=test/run_test.py` Reviewed By: mrshenli Differential Revision: D26904478 Pulled By: janeyx99 fbshipit-source-id: 9576b34f4fee09291d60e36ff2631753a3925094