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Retry of https://github.com/pytorch/pytorch/pull/150957, which was reverted due to internal meta failures Credit to @mgmtea who wrote the initial version of this PR: https://github.com/pytorch/pytorch/pull/146604 Context: CUPTI is the NVIDIA library that Kineto uses for collecting GPU-side info during profiling. The intended usage is to register a callback while you want profiling to occur, and then unregister the callback when you want profiling to stop. But a bug would cause crashes if CUPTI callbacks were de-registered when used with cudagraphs. The workaround was to disable "CUPTI_LAZY_REINIT" and "CUPTI_TEARDOWN" in Kineto - which prevents crashes, but can result in slower execution after profiling has occurred and completed. This bug is believed to be fixed in CUDA >= 12.6, so this PR qualifies that DISABLE_CUPTI_LAZY_REINIT=1 and CUPTI_TEARDOWN=0 should only be applied if CUDA >= 12.6. Additionally, `profiler_allow_cudagraph_cupti_lazy_reinit_cuda12()` is added as an escape hatch so that we can add a killswitch in case we see more crashes related to this. Differential Revision: [D72842114](https://our.internmc.facebook.com/intern/diff/D72842114/) **NOTE FOR REVIEWERS**: This PR has internal Meta-specific changes or comments, please review them on [Phabricator](https://our.internmc.facebook.com/intern/diff/D72842114/)! Differential Revision: [D72842114](https://our.internmc.facebook.com/intern/diff/D72842114) Pull Request resolved: https://github.com/pytorch/pytorch/pull/151124 Approved by: https://github.com/sraikund16 |
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| .. | ||
| __init__.py | ||
| _memory_profiler.py | ||
| _pattern_matcher.py | ||
| _utils.py | ||
| itt.py | ||
| profiler.py | ||
| python_tracer.py | ||