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https://issues.apache.org/jira/browse/SPARK-59563?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ruifeng Zheng updated SPARK-59563:
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Description: Use BLAS dasum and dnrm2 for ML and MLlib vector L1 and L2
norms, replacing the existing scalar loops with equivalent optimized routines.
(was: Use BLAS dasum and dnrm2 for ML and MLlib vector L1 and L2 norms.
Preserve numerically stable L2 results when the selected Java BLAS backend
overflows or underflows.)
> Use BLAS routines for vector L1 and L2 norms
> --------------------------------------------
>
> Key: SPARK-59563
> URL: https://issues.apache.org/jira/browse/SPARK-59563
> Project: Spark
> Issue Type: Improvement
> Components: ML
> Affects Versions: 5.0.0
> Reporter: Ruifeng Zheng
> Priority: Major
> Labels: pull-request-available
>
> Use BLAS dasum and dnrm2 for ML and MLlib vector L1 and L2 norms, replacing
> the existing scalar loops with equivalent optimized routines.
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