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[Rust] packed_simd requires nightly #23061
Description
See rust-lang/rfcs#2366 for more info on stabilization of this crate.
error[E0554]: `#![feature]` may not be used on the stable release channel
--> /home/andy/.cargo/registry/src/github.com-1ecc6299db9ec823/packed_simd-0.3.3/src/lib.rs:202:1
|
202 | / #![feature(
203 | | repr_simd,
204 | | const_fn,
205 | | platform_intrinsics,
... |
215 | | custom_inner_attributes
216 | | )]
| |__^
Reporter: Andy Grove / @andygrove
Related issues:
PRs and other links:
Note: This issue was originally created as ARROW-6718. Please see the migration documentation for further details.
Activity
asfimport commentedon Dec 23, 2019
Neville Dipale / @nevi-me:
If everyone's happy with the performance of arithmetic and compute kernels after the improvements to the non-SIMD functions (ARROW-7460), I'd like to propose removing packed_simd @paddyhoran
asfimport commentedon Dec 24, 2019
Paddy Horan / @paddyhoran:
I would love to get back on stable. I added a feature to disable explicit SIMD to try and make progress toward this goal. Although the main thing we need is specialization on stable.
If we can get the same level of performance then I'm all for removing packed_simd. At the time we adopted it, the author was trying to get it adopted into std. Since then he has stopped driving this forward until other features land.
I'll take a look in the next few days to compare performance, etc.
asfimport commentedon Sep 30, 2020
Kyle Strand:
There is now a portable-SIMD Rust language working group: https://blog.rust-lang.org/inside-rust/2020/09/29/Portable-SIMD-PG.html
Their goal is to make "a portable SIMD API available to stable Rust users." We should follow their progress and adopt their recommendations.
asfimport commentedon Apr 26, 2021
Andrew Lamb / @alamb:
Migrated to github: apache/arrow-rs#54