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Posted to jira@arrow.apache.org by "Antoine Pitrou (Jira)" <ji...@apache.org> on 2020/11/10 16:54:00 UTC

[jira] [Created] (ARROW-10548) [C++] Use native PEXT on AMD Zen 3

Antoine Pitrou created ARROW-10548:
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             Summary: [C++] Use native PEXT on AMD Zen 3
                 Key: ARROW-10548
                 URL: https://issues.apache.org/jira/browse/ARROW-10548
             Project: Apache Arrow
          Issue Type: Improvement
          Components: C++
            Reporter: Antoine Pitrou
            Assignee: Antoine Pitrou


According to various sources, BMI2 instructions PDEP and PEXT are not microcoded anymore on AMD Zen 3 CPUs, meaning we don't need the software emulation there.



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