bug#58100: closed (cbqn currently targets AVX2)

[GNU bug Tracking System]

Your message dated Mon, 07 Nov 2022 22:03:25 +0100
with message-id <01c4d98fab0c6f58fcedab8fc7eb717161d15b5f.camel@gmail.com>
and subject line Re: bug#58100: cbqn currently targets AVX2
has caused the debbugs.gnu.org bug report #58100,
regarding cbqn currently targets AVX2
to be marked as done.

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58100: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=58100
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--- Begin Message --- Subject: cbqn currently targets AVX2 Date: Mon, 26 Sep 2022 15:03:54 -0400 User-agent: mu4e 1.8.9; emacs 28.1

Hey All,

Came to my attention today that cbqn (which I recently submitted the
package for) was assuming a CPU with AVX2 extensions when built as I had
originally packaged it.

I have a patch to fix this; cbqn now will target a generic CPU, and the
AVX2 optimizations have been moved to their own package, cbqn-singeli.

Let me know what I can improve!

-- 
Christopher Rodriguez
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> --- Begin Message ---
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> Subject: 
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> Re: bug#58100: cbqn currently targets AVX2
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> Date: 
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> Mon, 07 Nov 2022 22:03:25 +0100
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> User-agent: 
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> Evolution 3.46.0 
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> Am Montag, dem 07.11.2022 um 14:35 +0100 schrieb Ludovic Courtès:
> > Hi,
> > 
> > Liliana Marie Prikler <liliana.prikler@gmail.com> skribis:
> > 
> > > Am Sonntag, dem 06.11.2022 um 18:39 +0100 schrieb Ludovic Courtès:
> > > > Hi Liliana,
> > > > 
> > > > Liliana Marie Prikler <liliana.prikler@gmail.com> skribis:
> > > > 
> > > > > * gnu/packages/bqn.scm (cbqn)[inputs]: Remove singeli-sources.
> > > > > [arguments]<#:make-flags: Replace “o3n-singeli” with “o3”.
> > > > > <#:phases>: Remove “link-singeli”.
> > > > 
> > > > This series of patches that you sent LGTM!
> > > > 
> > > > However, how does it relate to AVX2-specific builds?  
> > > IIUC, singeli is some tool that emits avx2-specific opcodes and the
> > > singeli builds of cbqn use that somehw; I admit, I do not
> > > completely understand what's going on on their side.
> > 
> > Oh, I see.
> > 
> > > > Anyhow, as you suggested in the thread, it’d be a good idea to
> > > > add a ‘tunable?’ property.
> > > Will simply adding (tunable? . #t) as a property be enough?  Also
> > > related to the signeli thing, do we have the means to create
> > > special build flows for tuned packages?
> > 
> > Yes, ci.guix builds tunable packages for several x86_64 ISA variants,
> > which are listed in (gnu ci).
> Done and pushed.
>
> Cheers
>
>
> --- End Message ---