GNU bug report logs - #67742
[PATCH] gnu: ci: Build tuned packages for common baselines.

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Package: guix-patches; Reported by: Efraim Flashner <efraim@HIDDEN>; Keywords: patch; dated Sun, 10 Dec 2023 07:54:02 UTC; Maintainer for guix-patches is guix-patches@HIDDEN.

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Date: Thu, 31 Oct 2024 15:03:38 +0000
From: Steve George <steve@HIDDEN>
To: 67742 <at> debbugs.gnu.org
Subject: RE: gnu: ci: Build tuned packages for common baselines
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Hi,

Bump ... did you'a'll you'a'll decide what to do here?

Futurile
Information forwarded to guix-patches@HIDDEN:
bug#67742; Package guix-patches. Full text available.

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From: =?utf-8?Q?Ludovic_Court=C3=A8s?= <ludo@HIDDEN>
To: guix-patches@HIDDEN
Subject: Re: [bug#67742] [PATCH] gnu: ci: Build tuned packages for common
 baselines.
In-Reply-To: <ZXhDlzHQOYTY-iw4@3900XT> (Efraim Flashner's message of "Tue, 12
 Dec 2023 13:27:19 +0200")
References: <7c09a597a23276e1987898022ff7f0e145c9fd8a.1702194739.git.efraim@HIDDEN>
 <87y1e02zft.fsf@HIDDEN> <ZXhDlzHQOYTY-iw4@3900XT>
Date: Mon, 18 Dec 2023 23:26:25 +0100
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Hello,

Efraim Flashner <efraim@HIDDEN> skribis:

> On Mon, Dec 11, 2023 at 10:37:26PM +0100, Ludovic Court=C3=A8s wrote:

[...]

>> >  (define %x86-64-micro-architectures
>> >    ;; Micro-architectures for which we build tuned variants.
>> > -  '("westmere" "ivybridge" "haswell" "skylake" "skylake-avx512"))
>> > +  '("x86-64-v2" "x86-64-v3" "x86-64-v4"))
>>=20
>> Right now, on my laptop, I get:
>>=20
>> --8<---------------cut here---------------start------------->8---
>> $ guix build gsl -n --tune
>> guix build: tuning gsl@HIDDEN for CPU skylake

[...]

> I'm not sure how we'd determine what would count as common.  I think if
> we added a '--tune=3Dclose-enough' and used cpu->micro-architecture-level
> or gcc-architecture->micro-architecture-level from (guix cpu) to choose
> x86_64-v[234] that would count more as common than the list above :P.

Sure, but that=E2=80=99s not the case yet:

--8<---------------cut here---------------start------------->8---
$ ./pre-inst-env guix build gsl --tune -n=20
guix build: tuning gsl@HIDDEN for CPU skylake
1.5 MB would be downloaded:
  /gnu/store/kx060kry6ka7khzganfcqk98agqp226i-gsl-2.7.1
--8<---------------cut here---------------end--------------->8---

So my suggestion was something like this:

  (define %x86-64-micro-architectures
    ;; Micro-architectures for which we build tuned variants.
    '("ivybridge" "haswell" "skylake" "skylake-avx512"
      "x86-64-v2" "x86-64-v3" "x86-64-v4"))

=E2=80=A6 so we don=E2=80=99t lose substitutes for =E2=80=9Ccommon=E2=80=9D=
 architectures.

Alternatively, we can go towards using x86-64-v* only, but in that case
we need to adjust the way =E2=80=98--tune=E2=80=99 (without arguments) gues=
ses the
target architecture.

WDYT?

Ludo=E2=80=99.
Information forwarded to guix-patches@HIDDEN:
bug#67742; Package guix-patches. Full text available.

Message received at submit <at> debbugs.gnu.org:


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Date: Tue, 12 Dec 2023 13:27:19 +0200
From: Efraim Flashner <efraim@HIDDEN>
To: Ludovic =?utf-8?Q?Court=C3=A8s?= <ludo@HIDDEN>
Subject: Re: [PATCH] gnu: ci: Build tuned packages for common baselines.
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 Content preview:  On Mon, Dec 11, 2023 at 10:37:26PM +0100, Ludovic Courtès
    wrote: > Hi, > > Efraim Flashner <efraim@HIDDEN> skribis: > > > *
    gnu/ci.scm (%x86-64-micro-architectures): Replace specific > > micr [...]
    
 
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On Mon, Dec 11, 2023 at 10:37:26PM +0100, Ludovic Court=C3=A8s wrote:
> Hi,
>=20
> Efraim Flashner <efraim@HIDDEN> skribis:
>=20
> > * gnu/ci.scm (%x86-64-micro-architectures): Replace specific
> > micro-architectures with generic ones.
> >
> > Change-Id: Iee2f65376a00ad2ee5fb393c2e64c07f866d8116
> > ---
> >  gnu/ci.scm | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/gnu/ci.scm b/gnu/ci.scm
> > index 279dd4d910..5c093ae135 100644
> > --- a/gnu/ci.scm
> > +++ b/gnu/ci.scm
> > @@ -372,7 +372,7 @@ (define package->job
> > =20
> >  (define %x86-64-micro-architectures
> >    ;; Micro-architectures for which we build tuned variants.
> > -  '("westmere" "ivybridge" "haswell" "skylake" "skylake-avx512"))
> > +  '("x86-64-v2" "x86-64-v3" "x86-64-v4"))
>=20
> Right now, on my laptop, I get:
>=20
> --8<---------------cut here---------------start------------->8---
> $ guix build gsl -n --tune
> guix build: tuning gsl@HIDDEN for CPU skylake
> substitute: updating substitutes from 'http://192.168.1.48:8123'... 100.0%
> substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0%
> 1.5 MB would be downloaded:
>   /gnu/store/kx060kry6ka7khzganfcqk98agqp226i-gsl-2.7.1
> $ guix describe
> Generation 284  Dec 10 2023 23:34:41    (current)
>   guix a90bc8b
>     repository URL: https://git.savannah.gnu.org/git/guix.git
>     branch: master
>     commit: a90bc8b6a82e094b10488030532cf4cd690ce57e
> --8<---------------cut here---------------end--------------->8---
>=20
> Which is nice!
>=20
> With the proposed change, I=E2=80=99d no longer get substitutes.
>=20
> So perhaps we could keep the common Intel variants in addition to the
> SysV psABI generic names?
>=20
> Maybe we can drop =E2=80=9Cwestmere=E2=80=9D now since it=E2=80=99s relat=
ively old.

I'm not sure how we'd determine what would count as common.  I think if
we added a '--tune=3Dclose-enough' and used cpu->micro-architecture-level
or gcc-architecture->micro-architecture-level from (guix cpu) to choose
x86_64-v[234] that would count more as common than the list above :P.

westmere and ivybridge didn't make the cut in (guix cpu), so they'd
never get chosen from '--tune'.

--=20
Efraim Flashner   <efraim@HIDDEN>   =D7=A8=D7=A0=D7=A9=D7=9C=D7=A4 =
=D7=9D=D7=99=D7=A8=D7=A4=D7=90
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Information forwarded to guix-patches@HIDDEN:
bug#67742; Package guix-patches. Full text available.

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From: =?utf-8?Q?Ludovic_Court=C3=A8s?= <ludo@HIDDEN>
To: Efraim Flashner <efraim@HIDDEN>
Subject: Re: [PATCH] gnu: ci: Build tuned packages for common baselines.
In-Reply-To: <7c09a597a23276e1987898022ff7f0e145c9fd8a.1702194739.git.efraim@HIDDEN>
 (Efraim Flashner's message of "Sun, 10 Dec 2023 09:52:42 +0200")
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Hi,

Efraim Flashner <efraim@HIDDEN> skribis:

> * gnu/ci.scm (%x86-64-micro-architectures): Replace specific
> micro-architectures with generic ones.
>
> Change-Id: Iee2f65376a00ad2ee5fb393c2e64c07f866d8116
> ---
>  gnu/ci.scm | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/gnu/ci.scm b/gnu/ci.scm
> index 279dd4d910..5c093ae135 100644
> --- a/gnu/ci.scm
> +++ b/gnu/ci.scm
> @@ -372,7 +372,7 @@ (define package->job
>=20=20
>  (define %x86-64-micro-architectures
>    ;; Micro-architectures for which we build tuned variants.
> -  '("westmere" "ivybridge" "haswell" "skylake" "skylake-avx512"))
> +  '("x86-64-v2" "x86-64-v3" "x86-64-v4"))

Right now, on my laptop, I get:

--8<---------------cut here---------------start------------->8---
$ guix build gsl -n --tune
guix build: tuning gsl@HIDDEN for CPU skylake
substitute: updating substitutes from 'http://192.168.1.48:8123'... 100.0%
substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0%
1.5 MB would be downloaded:
  /gnu/store/kx060kry6ka7khzganfcqk98agqp226i-gsl-2.7.1
$ guix describe
Generation 284  Dec 10 2023 23:34:41    (current)
  guix a90bc8b
    repository URL: https://git.savannah.gnu.org/git/guix.git
    branch: master
    commit: a90bc8b6a82e094b10488030532cf4cd690ce57e
--8<---------------cut here---------------end--------------->8---

Which is nice!

With the proposed change, I=E2=80=99d no longer get substitutes.

So perhaps we could keep the common Intel variants in addition to the
SysV psABI generic names?

Maybe we can drop =E2=80=9Cwestmere=E2=80=9D now since it=E2=80=99s relativ=
ely old.

WDYT?

Ludo=E2=80=99.
Information forwarded to guix-patches@HIDDEN:
bug#67742; Package guix-patches. Full text available.

Message received at submit <at> debbugs.gnu.org:


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From: Efraim Flashner <efraim@HIDDEN>
To: guix-patches@HIDDEN
Subject: [PATCH] gnu: ci: Build tuned packages for common baselines.
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 micro-architectures with generic ones. Change-Id:
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* gnu/ci.scm (%x86-64-micro-architectures): Replace specific
micro-architectures with generic ones.

Change-Id: Iee2f65376a00ad2ee5fb393c2e64c07f866d8116
---
 gnu/ci.scm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gnu/ci.scm b/gnu/ci.scm
index 279dd4d910..5c093ae135 100644
--- a/gnu/ci.scm
+++ b/gnu/ci.scm
@@ -372,7 +372,7 @@ (define package->job
 
 (define %x86-64-micro-architectures
   ;; Micro-architectures for which we build tuned variants.
-  '("westmere" "ivybridge" "haswell" "skylake" "skylake-avx512"))
+  '("x86-64-v2" "x86-64-v3" "x86-64-v4"))
 
 (define (tuned-package-jobs store package system)
   "Return a list of jobs for PACKAGE tuned for SYSTEM's micro-architectures."

base-commit: 9c30fb27a42bf10a733ef5165df7869588f0b27c
-- 
Efraim Flashner   <efraim@HIDDEN>   רנשלפ םירפא
GPG key = A28B F40C 3E55 1372 662D  14F7 41AA E7DC CA3D 8351
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Acknowledgement sent to Efraim Flashner <efraim@HIDDEN>:
New bug report received and forwarded. Copy sent to guix-patches@HIDDEN. Full text available.
Report forwarded to guix-patches@HIDDEN:
bug#67742; Package guix-patches. Full text available.
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