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https://issues.apache.org/jira/browse/ARROW-13619?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Antoine Pitrou closed ARROW-13619.
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Fix Version/s: (was: 6.0.0)
Resolution: Invalid
> [C++] Hash aggregation seems to ignore ARROW_USER_SIMD_LEVEL
> ------------------------------------------------------------
>
> Key: ARROW-13619
> URL: https://issues.apache.org/jira/browse/ARROW-13619
> Project: Apache Arrow
> Issue Type: Bug
> Components: C++
> Affects Versions: 5.0.0
> Reporter: Antoine Pitrou
> Priority: Major
>
> The {{ARROW_USER_SIMD_LEVEL}} environment variable allows to override the
> SIMD optimization level at runtime. For example
> {{ARROW_USER_SIMD_LEVEL=NONE}} is useful to benchmark a non-SIMD path.
> However, it seems the hash aggregation code doesn't react to this. Hence, on
> an AVX2-enabled machine (which is really the majority of high-end x86
> computers), it's cumbersome to run benchmarks for these code paths.
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