# \#windows

**URL:** https://pyfr.discourse.group/tag/windows/14.md

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## [KeyError on 3D case running with WSL Ubuntu openMP](https://pyfr.discourse.group/t/keyerror-on-3d-case-running-with-wsl-ubuntu-openmp/404)

<div class="topic-metadata">

**Author:** [@jack](https://pyfr.discourse.group/u/jack)\
**Replies:** 28\
**Last updated:** [19 September 2021 14:25 UTC](https://pyfr.discourse.group/t/keyerror-on-3d-case-running-with-wsl-ubuntu-openmp/404 "2021-09-19T14:25:06Z")

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Hi All, I am running PyFr on Windows WSL Ubuntu with openMP. The 2D example cases work well. However, when I prepare my own 3D case and tried with the following command: mpiexec -n 2 pyfr run -b openmp -p building\_3d.p…