[Libre-soc-dev] daily kan-ban update 20dec2021
Luke Kenneth Casson Leighton
lkcl at lkcl.net
Tue Dec 21 05:26:12 GMT 2021
On Tue, Dec 21, 2021 at 5:07 AM Jacob Lifshay <programmerjake at gmail.com> wrote:
> I attended the every-other-Monday Rust Project Portable-SIMD meeting
> earlier today; I mentioned how SimpleV is where you can have a
> 3-element vector with size 3*el-size and the same alignment as a
> single element, unlike x86 SIMD where you'd have to pack it into a
> 4-element vector and align to the size of the whole vector.
yeah there's an ARM instruction i forget which one specially for doing
3x4 4x3 transpose to "deal" with this. 75% utilisation is the sort of
thing that makes GPU end-users walk away from a product.
> After the meeting, I was busy with some stuff around the house...I'm
> planning on working on ternlog and grev tonight or (more likely)
star. should discuss on tuesday, to get some more done that are on
the PET Programme before the budgets expire, particularly some of
the 3D ones.
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