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enable windows arm64 #1940
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@zooba I added a few TODOs above if you or someone else want to help. |
@finnagin is looking at the conda-build changes, and will probably have some Qs about any user visible changes (such as how best to inform conda-build it should be doing a cross-compile). Hopefully that will unblock us to start looking at recipe/feedstock changes and figuring out the best way to automatically migrate existing ones (if needed). |
Task 4 is definitely first, yeah, and part of that seems to be plugging in the |
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See conda-forge/zlib-feedstock#72
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Ah neat, it's using CMake's support. I guess that means the env variables needed were already being set? Or did those get slipped in recently without me noticing? |
No, we should add support for an env variable like CMAKE_ARGS which we use in Linux/macOS. The two systems are so similar that even if cmake is not told that it is cross compiling, things just work because the correct compiler is used. |
Oh cool, I didn't see where the compiler was being picked. Just a vcvarsall call? That should work for anything with MSBuild or setuptools (if relatively up to date) too. |
Yes.
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Thanks @isuruf! This is very helpful! |
There should be a |
Can someone with hardware access check the zstd package?
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Hey @isuruf I can try running that for you! However, I'm currently waiting for access to the network that the machine I would use is on so I likely won't be able to do it until tomorrow. |
yes, I download it, but how to run it? I get the error ">conda build -t zstd-1.5.2-h45ec737_7.conda |
You need to have |
Looking at
I think it should be possible to stub out |
Just install an x86_64 version of conda and conda-build (and windows 11 for x86_64 emulation) and run the command. |
@isuruf when I run
looks like |
(base) C:\Users\shijunz\Downloads>conda build -t zstd-1.5.2-h45ec737_7.conda Leaving build/test directories: TESTS FAILED: zstd-1.5.2-h45ec737_7.tar.bz2 (base) C:\Users\shijunz\Downloads> |
cmake should be ok, I build a lot windows on arm64 app using the x64 version cmake. it support crossing build. maybe we should not check the it? or just tell the cmake -A arm64. but the pkg-config I have no idea. |
llecting package metadata (repodata.json): ...working... done yes, I run it on the windows 11 for x86-64 emulation mode) and get the similar error. |
If it's relevant, in addition to cross-compiling with the x64 version cmake also has arm64 Windows releases. |
We'll need to disable those tests for now. In the meantime, can you do,
and then try |
Sure!
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(arm64) C:\Windows\System32>conda install zstd PackagesNotFoundError: The following packages are not available from current channels:
Current channels:
To search for alternate channels that may provide the conda package you're
and use the search bar at the top of the page. |
(env_win-arm64) C:>conda install -c conda-forge zstd Package Planenvironment location: C:\Users\shijunz\AppData\Local\miniconda3\envs\env_win-arm64 added / updated specs: The following packages will be downloaded:
The following NEW packages will be INSTALLED: libzlib conda-forge/win-arm64::libzlib-1.2.13-h50ba5a6_5 Proceed ([y]/n)? y Downloading and Extracting Packages Preparing transaction: done |
but, in window on arm, I can NOT run ' conda build -t /path/to/zstd-1.5.2-h45ec737_7.conda', because I try to (env_win-arm64) C:\Users\shijunz\Downloads>conda install -c conda-forge conda-build PackagesNotFoundError: The following packages are not available from current channels:
Current channels:
To search for alternate channels that may provide the conda package you're
and use the search bar at the top of the page. |
I run conda install conda-build at the x64 env, and conda info show the conda-build is ok, but run : conda build -t zstd-1.5.2-h45ec737_7.tar.bz2n and get the same error. |
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I'm going to unpin this for now to make space for the numpy migration in the top bar, which is going to hit a lot of feedstocks now. We can repin it of course once things calm down there. |
Repinning this now that a slot opened up again, after the stdlib migration has been unpinned |
cc @arnabanimesh (as this context may also be useful in your efforts to rebuild for Windows ARM 🙂) |
For the item "Build a python entrypoint launcher (cli-arm64.exe) for conda-build", would it be sufficient to copy the current launcher |
How was the current entrypoint built? Presumably we could compile a new one given the source code |
It has a tricky backstory. It was compiled locally and committed directly to the repo(s) (conda and conda-build), then signed years later by Anaconda and resubmitted. I tried to clear up the story in https://github.com/conda/conda-launchers but there has been little follow up. I'm not sure how to sign the executables within the conda-forge pipelines either, because it would require having the Anaconda certificates somewhere in the repo and that's probably a no-go. |
See conda/conda-launchers#4 for more details. |
Should we add this to next week's Conda community meeting? |
Added the PR for the notes next week and included this item in the agenda. I might not make it, though, so if someone is around, please feel free to discuss it! |
This is a tracking issue to enable windows arm64.
We think the path forward is to cross-compile and do out of band testing on native hardware.
Let's put todo items here:
win-arm64
launcher conda/conda#14401win-arm64
launchers conda/conda-build#5545linux-aarch64/linux-ppc64le
resp.osx-arm64
(c.f. this file).cc @zooba @isuruf @jakirkham @jezdez @chenghlee
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