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Re: isa-support -- exit strategy?



Bastian Blank <waldi@debian.org> writes:

> On Sun, Apr 03, 2022 at 02:17:15PM +0300, Adrian Bunk wrote:
>> SIMDe (or similar approaches) could be used to build variant(s) of the 
>> library that have compile-time emulation of SIMD instructions in the 
>> lower baseline builds of vectorscan.
>
> But why?  Who in their right mind would ever try to use those aweful
> slow implementations?

I don't know in this particular case, but somewhat analogously: Very few
people in their right minds do deep learning on CPUs. Yet, I'm extremely
happy that PyTorch is in Debian (thanks to the hard work of Mo Zhou!),
even if it's CPU-only. It means that I can develop and test-run code on
my machine using just Debian packages, before shipping it off to the
actual compute infrastructure where GPUs do the heavy lifting on a
GPU-enabled non-Debian PyTorch.

I can imagine that there are people who do the same with lacking SIMD
instructions.


 Best,
 Gard
 

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