[PyTorch][JIT] Don't refcount Type singletons #69579
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This should help us avoid reference counting overhead on singleton Type subclasses without a major rewrite of the Type subsystem. Differential Revision: [D32923880](https://our.internmc.facebook.com/intern/diff/D32923880/) [ghstack-poisoned]
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This should help us avoid reference counting overhead on singleton Type subclasses without a major rewrite of the Type subsystem. Differential Revision: [D32923880](https://our.internmc.facebook.com/intern/diff/D32923880/) [ghstack-poisoned]
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Dec 8, 2021
Pull Request resolved: #69579 This should help us avoid reference counting overhead on singleton Type subclasses without a major rewrite of the Type subsystem. ghstack-source-id: 145056617 Differential Revision: [D32923880](https://our.internmc.facebook.com/intern/diff/D32923880/)
This should help us avoid reference counting overhead on singleton Type subclasses without a major rewrite of the Type subsystem. Differential Revision: [D32923880](https://our.internmc.facebook.com/intern/diff/D32923880/) [ghstack-poisoned]
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Dec 8, 2021
Pull Request resolved: #69579 This should help us avoid reference counting overhead on singleton Type subclasses without a major rewrite of the Type subsystem. ghstack-source-id: 145145357 Differential Revision: [D32923880](https://our.internmc.facebook.com/intern/diff/D32923880/)
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Should I review? Tests look sadge |
you can still review for broad direction. blocking on tests slows down the process. |
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Looks like there's some kind of CUDA build failure I don't understand (can we not do explicit destructor calls in CUDA? why is this code getting built for CUDA anyway?), and I have to patch the Python bridging stuff for the new classes. |
This should help us avoid reference counting overhead on singleton Type subclasses without a major rewrite of the Type subsystem. Differential Revision: [D32923880](https://our.internmc.facebook.com/intern/diff/D32923880/) [ghstack-poisoned]
swolchok
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Dec 14, 2021
Pull Request resolved: #69579 This should help us avoid reference counting overhead on singleton Type subclasses without a major rewrite of the Type subsystem. ghstack-source-id: 145671620 Differential Revision: [D32923880](https://our.internmc.facebook.com/intern/diff/D32923880/)
This should help us avoid reference counting overhead on singleton Type subclasses without a major rewrite of the Type subsystem. Differential Revision: [D32923880](https://our.internmc.facebook.com/intern/diff/D32923880/) [ghstack-poisoned]
swolchok
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Dec 15, 2021
Pull Request resolved: #69579 This should help us avoid reference counting overhead on singleton Type subclasses without a major rewrite of the Type subsystem. ghstack-source-id: 145771095 Differential Revision: [D32923880](https://our.internmc.facebook.com/intern/diff/D32923880/)
This should help us avoid reference counting overhead on singleton Type subclasses without a major rewrite of the Type subsystem. Differential Revision: [D32923880](https://our.internmc.facebook.com/intern/diff/D32923880/) [ghstack-poisoned]
This should help us avoid reference counting overhead on singleton Type subclasses without a major rewrite of the Type subsystem. Differential Revision: [D32923880](https://our.internmc.facebook.com/intern/diff/D32923880/) [ghstack-poisoned]
swolchok
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Dec 16, 2021
Pull Request resolved: #69579 This should help us avoid reference counting overhead on singleton Type subclasses without a major rewrite of the Type subsystem. ghstack-source-id: 145793691 Differential Revision: [D32923880](https://our.internmc.facebook.com/intern/diff/D32923880/)
This should help us avoid reference counting overhead on singleton Type subclasses without a major rewrite of the Type subsystem. Differential Revision: [D32923880](https://our.internmc.facebook.com/intern/diff/D32923880/) [ghstack-poisoned]
swolchok
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Dec 16, 2021
Pull Request resolved: #69579 This should help us avoid reference counting overhead on singleton Type subclasses without a major rewrite of the Type subsystem. ghstack-source-id: 145813052 Differential Revision: [D32923880](https://our.internmc.facebook.com/intern/diff/D32923880/)
swolchok
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Dec 16, 2021
aten/src/ATen/core/type_ptr.h
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| // Without SharedPtrWrapper, this line would read | ||
| // `shared_.~shared_ptr()` and nvcc would complain with | ||
| // "error: expected primary-expression before '>' token" | ||
| // referring to the "t" in "shared_ptr". SharedPtrWrapper | ||
| // exists to work around this compiler bug. | ||
| shared_.~SharedPtrWrapper(); |
This should help us avoid reference counting overhead on singleton Type subclasses without a major rewrite of the Type subsystem. Differential Revision: [D32923880](https://our.internmc.facebook.com/intern/diff/D32923880/) [ghstack-poisoned]
This should help us avoid reference counting overhead on singleton Type subclasses without a major rewrite of the Type subsystem. Differential Revision: [D32923880](https://our.internmc.facebook.com/intern/diff/D32923880/) [ghstack-poisoned]
swolchok
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Dec 16, 2021
Pull Request resolved: #69579 This should help us avoid reference counting overhead on singleton Type subclasses without a major rewrite of the Type subsystem. ghstack-source-id: 145875239 Differential Revision: [D32923880](https://our.internmc.facebook.com/intern/diff/D32923880/) **NOTE FOR REVIEWERS**: This PR has internal Facebook specific changes or comments, please review them on [Phabricator](https://our.internmc.facebook.com/intern/diff/D32923880/)!
suo
approved these changes
Dec 20, 2021
This should help us avoid reference counting overhead on singleton Type subclasses without a major rewrite of the Type subsystem. Differential Revision: [D32923880](https://our.internmc.facebook.com/intern/diff/D32923880/) [ghstack-poisoned]
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Jan 4, 2022
Pull Request resolved: #69579 This should help us avoid reference counting overhead on singleton Type subclasses without a major rewrite of the Type subsystem. ghstack-source-id: 146468426 Differential Revision: [D32923880](https://our.internmc.facebook.com/intern/diff/D32923880/) **NOTE FOR REVIEWERS**: This PR has internal Facebook specific changes or comments, please review them on [Phabricator](https://our.internmc.facebook.com/intern/diff/D32923880/)!
This should help us avoid reference counting overhead on singleton Type subclasses without a major rewrite of the Type subsystem. Differential Revision: [D32923880](https://our.internmc.facebook.com/intern/diff/D32923880/) [ghstack-poisoned]
swolchok
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Jan 5, 2022
Pull Request resolved: #69579 This should help us avoid reference counting overhead on singleton Type subclasses without a major rewrite of the Type subsystem. ghstack-source-id: 146558363 Differential Revision: [D32923880](https://our.internmc.facebook.com/intern/diff/D32923880/) **NOTE FOR REVIEWERS**: This PR has internal Facebook specific changes or comments, please review them on [Phabricator](https://our.internmc.facebook.com/intern/diff/D32923880/)!
This should help us avoid reference counting overhead on singleton Type subclasses without a major rewrite of the Type subsystem. Differential Revision: [D32923880](https://our.internmc.facebook.com/intern/diff/D32923880/) [ghstack-poisoned]
swolchok
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Jan 6, 2022
Pull Request resolved: #69579 This should help us avoid reference counting overhead on singleton Type subclasses without a major rewrite of the Type subsystem. ghstack-source-id: 146643993 Differential Revision: [D32923880](https://our.internmc.facebook.com/intern/diff/D32923880/) **NOTE FOR REVIEWERS**: This PR has internal Facebook specific changes or comments, please review them on [Phabricator](https://our.internmc.facebook.com/intern/diff/D32923880/)!
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I've conservatively labeled this bc-breaking because it is possible for it to cause compile errors in downstream code that tried to use std::dynamic_pointer_cast on TypePtrs instead of going through the Type::cast API. I ran into one example of this internally and the fix was to just use Type::cast. |
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Stack from ghstack:
This should help us avoid reference counting overhead on singleton Type subclasses without a major rewrite of the Type subsystem.
Differential Revision: D32923880
cc @ezyang @gchanan