PyTorch

[Cat7373]

The official name of the app
Pytorch

Is there a supported version available on a stable release channel?
Unknown

Proposed App Status
Unknown

Proposed App Category
Developer Tools

Related Issue Tracker Link or discussion
None

An Official App Download Page
https://pytorch.org

Additional context
None

Full Screenshot with the App and Activity Monitor(if self reporting) or Silicon Info
None

[liyucheng09]

There are several clues about the supports of pytorch on M1 chip.
Using ARM64 wheel and arm version of Conda: pytorch/pytorch#48145
Still cannot accelerate via neural engine: pytorch/pytorch#47702
It seems that pytorch cannot build from source via python3.9 (universal 2 version, latest release): pytorch/pytorch#44449

[liyucheng09]

BTW, although pytorch can work "just ok" via M1, many tools are still lack of supports, including Scipy, matplotlib and so on. And IDEs are also far from optimized like Pycharm.

[ThatGuySam]

@Cat7373 Thanks for the App Request!

It looks like it's not clear that it works well enough for production on Apple Silicon.

Next we'll need to see if it works via Rosetta 2.

[liyucheng09]

See: pytorch/pytorch#48524
We can currently install torch with arm version pip; or we can build torch from source nightly.

[ThatGuySam]

Honestly, I'm not super familiar with Pytorch.

Would you say that it can be installed and run as a Python developer would expect it to?

[jjbouza]

I can confirm that pytorch works well under Rosetta. It seems there are still some issues with installing it through pip (at least for me), so developers need to build it from source, which is possible but kind of tricky at the moment since some people are having issues with OpenMP linking. So probably should not be listed as "native" just yet depending on how strict you want to be with that designation

[liyucheng09]

I just try on my MacBook Air 13 with M1, and pip works greatly installing pytorch.

liyucheng@liyuchengdeMacBook-Air ~ % which pip3
/Library/Frameworks/Python.framework/Versions/3.9/bin/pip3
liyucheng@liyuchengdeMacBook-Air ~ % pip3 install torch
Looking in indexes: https://mirrors.aliyun.com/pypi/simple/
Collecting torch
  Downloading https://mirrors.aliyun.com/pypi/packages/79/c8/7f7843dcbaf2263918d257e8022770be577a3d7587dd0ddf8171947eabb4/torch-1.7.1-cp39-none-macosx_10_9_x86_64.whl (110.0 MB)
     |████████████████████████████████| 110.0 MB 142 kB/s 
Collecting typing-extensions
  Downloading https://mirrors.aliyun.com/pypi/packages/60/7a/e881b5abb54db0e6e671ab088d079c57ce54e8a01a3ca443f561ccadb37e/typing_extensions-3.7.4.3-py3-none-any.whl (22 kB)
Requirement already satisfied: numpy in /Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages (from torch) (1.19.4)
Installing collected packages: typing-extensions, torch
Successfully installed torch-1.7.1 typing-extensions-3.7.4.3
WARNING: You are using pip version 20.2.3; however, version 20.3.3 is available.
You should consider upgrading via the '/Library/Frameworks/Python.framework/Versions/3.9/bin/python3.9 -m pip install --upgrade pip' command.
liyucheng@liyuchengdeMacBook-Air ~ % python3
Python 3.9.0 (v3.9.0:9cf6752276, Oct  5 2020, 11:29:23) 
[Clang 6.0 (clang-600.0.57)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import torch
>>> 

[liyucheng09]

Note that you should use the latest version python on python.org rather than the python in the Apple CommandLineTools.

[liyucheng09]

Honestly, I'm not super familiar with Pytorch.

Would you say that it can be installed and run as a Python developer would expect it to?

Yes, but the speed is quite slow than the other neural network platform TensorFlow which is optimized on Apple M1. Therefore, it still needs further updates I think.

[ThatGuySam]

App is now live on the site!

https://doesitarm.com/app/pytorch/

We'll keep this issue open for when native Apple Silicon support drops via pip on the stable release channel