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@JPXKQX JPXKQX commented Feb 2, 2026

Description

This PR introduces an additional option for masking the global dataset during cutouts, thereby optimising its memory footprint.

This functionality is currently implemented in anemoi-training through grid_indices, but making this small change would remove a significant amount of complexity from anemoi-core.

  • A test has been added for the cutout_mask() function.
  • Documentation has been updated for the cutout operation.

As a contributor to the Anemoi framework, please ensure that your changes include unit tests, updates to any affected dependencies and documentation, and have been tested in a parallel setting (i.e., with multiple GPUs). As a reviewer, you are also responsible for verifying these aspects and requesting changes if they are not adequately addressed. For guidelines about those please refer to https://anemoi.readthedocs.io/en/latest/

By opening this pull request, I affirm that all authors agree to the Contributor License Agreement.


📚 Documentation preview 📚: https://anemoi-datasets--522.org.readthedocs.build/en/522/

@github-project-automation github-project-automation bot moved this to To be triaged in Anemoi-dev Feb 2, 2026
@JPXKQX JPXKQX self-assigned this Feb 2, 2026
@github-actions github-actions bot added documentation Improvements or additions to documentation tests labels Feb 2, 2026
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