Branch: refs/heads/master Home: https://github.com/Sbozzolo/kuibit Commit: 363b8d79acbca385a52c056128e42df7ef6fbed2 https://github.com/Sbozzolo/kuibit/commit/363b8d79acbca385a52c056128e42df7ef... Author: Max Rizzo maxrizzo99@gmail.com Date: 2026-05-20 (Wed, 20 May 2026)

Changed paths: M NEWS.md M docs/cactus_scalars.rst M kuibit/cactus_scalars.py M tests/test_cactus_scalars.py M tests/tov/output-0000/static_tov/admbase-curv.scalars.asc

Log Message: ----------- kuibit: Support `sum` scalar reductions (#54)

Add support for the `sum` scalar reduction for Carpet and CarpetX outputs.

Also tighten the all-reductions header mapping introduced in #53. Unknown header reduction names were previously registered in `_reduction_vars_columns`. This usually had no practical effect because they were not exposed by `ScalarsDir`, but ignoring them moves the code closer to a single source of truth for supported reductions for Carpet/CarpetX respectively.

The testsuite seemed to be lacking a test that looks asks if every supported reduction type is behaving for both Carpet/CarpetX. One test is addded which loops over every kuibit reduction type, for both Carpet and CarpetX, and checks that the kuibit read reductions match the data from a direct numpy read.

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