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Update faqs on pytorch compatibility on Windows avoiding to uninstall openmp #1722

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Sep 25, 2024
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Update faqs on pytorch compatibility on Windows avoiding to uninstall openmp #1722

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8 changes: 4 additions & 4 deletions doc/faqs.md
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Expand Up @@ -91,11 +91,11 @@ If you are on Windows and you obtain an error message like:
OSError: [WinError 182] The operating system cannot run %1. Error loading "D:\miniforge\envs\robsub\Lib\site-packages\torch\lib\fbgemm.dll" or one of its dependencies.
~~~

when trying to load `import torch`, then probably you have both `openmp` and `intel-openmp` installed in your conda environment. To fix your pytorch installation, just run:
when trying to load `import torch`, then probably you have both `openmp` and `intel-openmp` installed in your conda environment, and they both install files with the same name.
To fix your pytorch installation you need to ensure that the files from `intel-openmp` are used, to do so you can run:

~~~
conda uninstall openmp
conda install intel-openmp --forge-reinstall
conda install intel-openmp --force-reinstall
~~~

Note that this procedure can create problem when installing ipopt-related software. This will be probably be solved once conda-forge migrates to a modern fortran compiler on Windows, see https://github.com/conda-forge/conda-forge-pinning-feedstock/pull/1359 for more infomation.
This will be probably be solved once conda-forge migrates to a modern fortran compiler on Windows, see https://github.com/conda-forge/conda-forge-pinning-feedstock/pull/1359 for more infomation.
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