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Posted to issues@lucene.apache.org by "Robert Muir (Jira)" <ji...@apache.org> on 2021/03/19 11:22:00 UTC

[jira] [Resolved] (LUCENE-9838) simd version of VectorUtil.dotProduct

     [ https://issues.apache.org/jira/browse/LUCENE-9838?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Robert Muir resolved LUCENE-9838.
---------------------------------
    Resolution: Won't Fix

Unfortunately, this vector api does not look to be something serious, e.g. coming out any time before we all retire.

> simd version of VectorUtil.dotProduct
> -------------------------------------
>
>                 Key: LUCENE-9838
>                 URL: https://issues.apache.org/jira/browse/LUCENE-9838
>             Project: Lucene - Core
>          Issue Type: Improvement
>            Reporter: Robert Muir
>            Priority: Major
>         Attachments: LUCENE-9838.patch, LUCENE-9838_standalone.patch
>
>          Time Spent: 6h 10m
>  Remaining Estimate: 0h
>
> Followup to LUCENE-9837
> Let's explore using JDK 16 vector API to speed this up more. It might be a hassle to try to MR-JAR/package up for users (adding commandline flags and stuff), but it gives good performance.



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