Unboxed kernels in c10 #23447
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Unboxed kernels in c10 #23447
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The c10 dispatcher now also stores a `void*` pointer to the unboxed kernel function and this kernel function can be called if the call site knows the exact kernel signature. It is not clear if this API will survive in the long term, but in the short term this allows an easier migration from ATen to c10 and is supposed to replace ATenDispatch. Differential Revision: [D16521939](https://our.internmc.facebook.com/intern/diff/D16521939/)
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The c10 dispatcher now also stores a `void*` pointer to the unboxed kernel function and this kernel function can be called if the call site knows the exact kernel signature. It is not clear if this API will survive in the long term, but in the short term this allows an easier migration from ATen to c10 and is supposed to replace ATenDispatch. Differential Revision: [D16521939](https://our.internmc.facebook.com/intern/diff/D16521939/) ghstack-source-id: 87262377 Pull Request resolved: #23447
dzhulgakov
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Jul 29, 2019
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| template<class Result, class... Args> | ||
| inline Result callOpUnboxed(const c10::OperatorHandle& op, c10::TensorTypeId dispatchKey, Args... args) { |
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I though the whole point of unboxed call was to figure out the dispatch key from arguments. Do you think it's doable with template magic to collect keys of arguemnts (I recall you had this code somewhere). If not - we can codegen it
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This is planned but a future PR. There's a mismatch between c10 and aten currently because c10 chooses "the first tensor argument" to dispatch on while aten looks for "the tensor argument named 'self'". The plan is to add this 'self' functionality to c10 and then use it.
dzhulgakov
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Jul 30, 2019
The c10 dispatcher now also stores a `void*` pointer to the unboxed kernel function and this kernel function can be called if the call site knows the exact kernel signature. It is not clear if this API will survive in the long term, but in the short term this allows an easier migration from ATen to c10 and is supposed to replace ATenDispatch. Differential Revision: [D16521939](https://our.internmc.facebook.com/intern/diff/D16521939/)
smessmer
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Jul 31, 2019
The c10 dispatcher now also stores a `void*` pointer to the unboxed kernel function and this kernel function can be called if the call site knows the exact kernel signature. It is not clear if this API will survive in the long term, but in the short term this allows an easier migration from ATen to c10 and is supposed to replace ATenDispatch. Pull Request resolved: #23447 ghstack-source-id: 87461228 Differential Revision: [D16521939](https://our.internmc.facebook.com/intern/diff/D16521939/)
The c10 dispatcher now also stores a `void*` pointer to the unboxed kernel function and this kernel function can be called if the call site knows the exact kernel signature. It is not clear if this API will survive in the long term, but in the short term this allows an easier migration from ATen to c10 and is supposed to replace ATenDispatch. Differential Revision: [D16521939](https://our.internmc.facebook.com/intern/diff/D16521939/)
smessmer
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Jul 31, 2019
The c10 dispatcher now also stores a `void*` pointer to the unboxed kernel function and this kernel function can be called if the call site knows the exact kernel signature. It is not clear if this API will survive in the long term, but in the short term this allows an easier migration from ATen to c10 and is supposed to replace ATenDispatch. Pull Request resolved: #23447 ghstack-source-id: 87508550 Differential Revision: [D16521939](https://our.internmc.facebook.com/intern/diff/D16521939/)
The c10 dispatcher now also stores a `void*` pointer to the unboxed kernel function and this kernel function can be called if the call site knows the exact kernel signature. It is not clear if this API will survive in the long term, but in the short term this allows an easier migration from ATen to c10 and is supposed to replace ATenDispatch. Differential Revision: [D16521939](https://our.internmc.facebook.com/intern/diff/D16521939/)
The c10 dispatcher now also stores a `void*` pointer to the unboxed kernel function and this kernel function can be called if the call site knows the exact kernel signature. It is not clear if this API will survive in the long term, but in the short term this allows an easier migration from ATen to c10 and is supposed to replace ATenDispatch. Differential Revision: [D16521939](https://our.internmc.facebook.com/intern/diff/D16521939/)
smessmer
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The c10 dispatcher now also stores a `void*` pointer to the unboxed kernel function and this kernel function can be called if the call site knows the exact kernel signature. It is not clear if this API will survive in the long term, but in the short term this allows an easier migration from ATen to c10 and is supposed to replace ATenDispatch. Pull Request resolved: #23447 ghstack-source-id: 87539686 Differential Revision: [D16521939](https://our.internmc.facebook.com/intern/diff/D16521939/)
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Stamping it as a standalone change. But it'd be nice to see how it'd connect end-to-end (including boxing/unboxing and figuring out the dispatch keys) and what's the plan going forward
This was referenced Aug 1, 2019
The c10 dispatcher now also stores a `void*` pointer to the unboxed kernel function and this kernel function can be called if the call site knows the exact kernel signature. It is not clear if this API will survive in the long term, but in the short term this allows an easier migration from ATen to c10 and is supposed to replace ATenDispatch. Differential Revision: [D16521939](https://our.internmc.facebook.com/intern/diff/D16521939/)
This was referenced Aug 1, 2019
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The c10 dispatcher now also stores a `void*` pointer to the unboxed kernel function and this kernel function can be called if the call site knows the exact kernel signature. It is not clear if this API will survive in the long term, but in the short term this allows an easier migration from ATen to c10 and is supposed to replace ATenDispatch. Differential Revision: [D16521939](https://our.internmc.facebook.com/intern/diff/D16521939/)
The c10 dispatcher now also stores a `void*` pointer to the unboxed kernel function and this kernel function can be called if the call site knows the exact kernel signature. It is not clear if this API will survive in the long term, but in the short term this allows an easier migration from ATen to c10 and is supposed to replace ATenDispatch. Differential Revision: [D16521939](https://our.internmc.facebook.com/intern/diff/D16521939/)
The c10 dispatcher now also stores a `void*` pointer to the unboxed kernel function and this kernel function can be called if the call site knows the exact kernel signature. It is not clear if this API will survive in the long term, but in the short term this allows an easier migration from ATen to c10 and is supposed to replace ATenDispatch. Differential Revision: [D16521939](https://our.internmc.facebook.com/intern/diff/D16521939/)
This was referenced Aug 5, 2019
The c10 dispatcher now also stores a `void*` pointer to the unboxed kernel function and this kernel function can be called if the call site knows the exact kernel signature. It is not clear if this API will survive in the long term, but in the short term this allows an easier migration from ATen to c10 and is supposed to replace ATenDispatch. Differential Revision: [D16521939](https://our.internmc.facebook.com/intern/diff/D16521939/)
The c10 dispatcher now also stores a `void*` pointer to the unboxed kernel function and this kernel function can be called if the call site knows the exact kernel signature. It is not clear if this API will survive in the long term, but in the short term this allows an easier migration from ATen to c10 and is supposed to replace ATenDispatch. Differential Revision: [D16521939](https://our.internmc.facebook.com/intern/diff/D16521939/)
The c10 dispatcher now also stores a `void*` pointer to the unboxed kernel function and this kernel function can be called if the call site knows the exact kernel signature. It is not clear if this API will survive in the long term, but in the short term this allows an easier migration from ATen to c10 and is supposed to replace ATenDispatch. Differential Revision: [D16521939](https://our.internmc.facebook.com/intern/diff/D16521939/)
The c10 dispatcher now also stores a `void*` pointer to the unboxed kernel function and this kernel function can be called if the call site knows the exact kernel signature. It is not clear if this API will survive in the long term, but in the short term this allows an easier migration from ATen to c10 and is supposed to replace ATenDispatch. Differential Revision: [D16521939](https://our.internmc.facebook.com/intern/diff/D16521939/)
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This pull request has been merged in 9dbee5f. |
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Summary: The c10 dispatcher now also stores a `void*` pointer to the unboxed kernel function and this kernel function can be called if the call site knows the exact kernel signature. It is not clear if this API will survive in the long term, but in the short term this allows an easier migration from ATen to c10 and is supposed to replace ATenDispatch. Pull Request resolved: pytorch/pytorch#23447 ghstack-source-id: 88050435 Differential Revision: D16521939 fbshipit-source-id: 7e570df5a721defc677c3cc91758651dbe06ce1c
yf225
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This reverts commit 9dbee5f.
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Stack from ghstack:
The c10 dispatcher now also stores a
void*pointer to the unboxed kernel function and this kernel function can be called if the call site knows the exact kernel signature.It is not clear if this API will survive in the long term, but in the short term this allows an easier migration from ATen to c10 and is supposed to replace ATenDispatch.
Differential Revision: D16521939