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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.
guix-patches@HIDDEN:bug#67742; Package guix-patches.
Full text available.
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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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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.
guix-patches@HIDDEN:bug#67742; Package guix-patches.
Full text available.
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From: Efraim Flashner <efraim@HIDDEN>
To: guix-patches@HIDDEN
Subject: [PATCH] gnu: ci: Build tuned packages for common baselines.
Date: Sun, 10 Dec 2023 09:52:42 +0200
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Content preview: * 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(-)
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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
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Efraim Flashner <efraim@HIDDEN>:guix-patches@HIDDEN.
Full text available.guix-patches@HIDDEN:bug#67742; Package guix-patches.
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