pytorch/docs/cpp/source/notes/versioning.rst
Bowen Bao 02e35ce17b [ONNX] Update onnx function export with comments and clean up (#66817) (#67803)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/67803

* Addresses comments from #63589

[ONNX] remove torch::onnx::PRODUCER_VERSION (#67107)

Use constants from version.h instead.
This simplifies things since we no longer have to update
PRODUCER_VERSION for each release.

Also add TORCH_VERSION to version.h so that a string is available for
this purpose.

[ONNX] Set `ir_version` based on opset_version. (#67128)

This increases the odds that the exported ONNX model will be usable.
Before this change, we were setting the IR version to a value which may
be higher than what the model consumer supports.

Also some minor clean-up in the test code:
* Fix string replacement.
* Use a temporary file so as to not leave files around in the test
  current working directory.

Test Plan: Imported from OSS

Reviewed By: msaroufim

Differential Revision: D32181306

Pulled By: malfet

fbshipit-source-id: 02f136d34ef8f664ade0bc1985a584f0e8c2b663

Co-authored-by: BowenBao <bowbao@microsoft.com>
Co-authored-by: Gary Miguel <garymiguel@microsoft.com>
Co-authored-by: Nikita Shulga <nshulga@fb.com>
2021-11-05 10:35:35 -07:00

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Library Versioning
==================
We provide version number macros for identifying the version of LibTorch in use.
Example usage:
.. code-block:: cpp
#include <torch/torch.h>
#include <iostream>
int main() {
std::cout << "PyTorch version from parts: "
<< TORCH_VERSION_MAJOR << "."
<< TORCH_VERSION_MINOR << "."
<< TORCH_VERSION_PATCH << std::endl;
std::cout << "PyTorch version: " << TORCH_VERSION << std::endl;
}
This will output something like:
.. code-block:: text
PyTorch version from parts: 1.8.0
PyTorch version: 1.8.0
.. note::
These macros are only available in PyTorch >= 1.8.0.