[ARROW-1822] [C++] Add SSE4.2-accelerated hash kernels and use if host CPU supports - ASF JIRA

XML

Word

Printable

JSON

Details

Type: New Feature
Status: Closed
Priority: Major
Resolution: Duplicate
Affects Version/s: None
Fix Version/s: 0.12.0
Component/s: C++
Labels:
None

External issue URL:
https://github.com/apache/arrow/issues/17817

Description

SSE4.2 has CRC32 intrinsics that can be used to compute hash values. It seems it may be acceptable to use -msse4.2 on isolated compilation units, but if this object code is used on a machine without support for the SIMD instructions, then it will crash

Attachments

Issue Links

is superceded by

ARROW-2653 [C++] Refactor hash table support

Resolved

Activity

People

Assignee:: Antoine Pitrou

Reporter:: Wes McKinney

Votes:: 0 Vote for this issue

Watchers:: 3 Start watching this issue

Dates

Created:: 16/Nov/17 04:36

Updated:: 11/Jan/23 07:17

Resolved:: 22/Nov/18 13:41

Agile

View on Board

[C++] Add SSE4.2-accelerated hash kernels and use if host CPU supports