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https://issues.apache.org/jira/browse/SPARK-57951?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated SPARK-57951:
-----------------------------------
Labels: pull-request-available (was: )
> MLTest single-prediction checks should tolerate last-ULP FP differences
> (macOS arm64)
> -------------------------------------------------------------------------------------
>
> Key: SPARK-57951
> URL: https://issues.apache.org/jira/browse/SPARK-57951
> Project: Spark
> Issue Type: Bug
> Components: ML
> Affects Versions: 5.0.0
> Reporter: Hyukjin Kwon
> Priority: Major
> Labels: pull-request-available
>
> MLTest.testClassificationModelSingleRawPrediction and
> testProbClassificationModelSingleProbPrediction compare the DataFrame
> transform output against the scalar predictRaw/predictProbability output with
> exact === equality. On arm64 macOS the two paths can differ in the last ULP
> (e.g. 1.543502002724983 vs 1.5435020027249835), failing
> MultilayerPerceptronClassifierSuite and others on the Build / Maven (JDK 21,
> MacOS-26) lane while Linux stays bit-identical. Compare with a tight absolute
> tolerance (1e-9) instead.
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