# The geometry.xml of OpenMC can be calculated and run normally in the CPU version, but it cannot be run in the GPU version. 

**URL:** <https://openmc.discourse.group/t/the-geometry-xml-of-openmc-can-be-calculated-and-run-normally-in-the-cpu-version-but-it-cannot-be-run-in-the-gpu-version/5490>\
**Category:** User Support\
**Created:** [May 7, 2025, 8:46pm UTC](https://openmc.discourse.group/t/the-geometry-xml-of-openmc-can-be-calculated-and-run-normally-in-the-cpu-version-but-it-cannot-be-run-in-the-gpu-version/5490 "2025-05-07T20:46:43Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![chen](https://avatars.discourse-cdn.com/v4/letter/c/3d9bf3/32.png) [@chen](https://openmc.discourse.group/u/chen)\
**Post date:** [May 7, 2025, 8:46pm UTC](https://openmc.discourse.group/t/the-geometry-xml-of-openmc-can-be-calculated-and-run-normally-in-the-cpu-version-but-it-cannot-be-run-in-the-gpu-version/5490/1 "2025-05-07T20:46:43Z")

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The geometry.xml of OpenMC can be calculated and run normally in the CPU version, but it cannot be run in the GPU version.

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**Author:** ![cro](https://avatars.discourse-cdn.com/v4/letter/c/e5b9ba/32.png) [@cro](https://openmc.discourse.group/u/cro)\
**Post date:** [May 21, 2025, 7:53am UTC](https://openmc.discourse.group/t/the-geometry-xml-of-openmc-can-be-calculated-and-run-normally-in-the-cpu-version-but-it-cannot-be-run-in-the-gpu-version/5490/2 "2025-05-21T07:53:39Z")

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Hi, chen, I have encountered similar problems before. Could you provide specific error information or which GPU version you have?