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From: zimoun <zimon.toutoune@gmail.com>
To: "Maxime Devos" <maximedevos@telenet.be>,
	"Ludovic Courtès" <ludo@gnu.org>,
	"Maxim Cournoyer" <maxim.cournoyer@gmail.com>
Cc: guix-devel@gnu.org, kiasoc5@tutanota.com
Subject: Re: Hardened toolchain
Date: Mon, 02 May 2022 19:41:58 +0200	[thread overview]
Message-ID: <87ilqn96hl.fsf@gmail.com> (raw)
In-Reply-To: <599c070e48d782c5edf1b2a209c09a0489b79bc2.camel@telenet.be>

Hi Maxime,

On Mon, 02 May 2022 at 18:25, Maxime Devos <maximedevos@telenet.be> wrote:
> zimoun schreef op vr 29-04-2022 om 12:31 [+0200]:
>> > Stack smashing protection (SSP) may incur measurable run-time
>> > overhead
>> > though so enabling that one by default may be less consensual.
>> 
>> That’s true and it could be an issue for HPC practitioners.  [...]
>
> I'm not sure if this wasn't already mentioned, but HPC practicioners
> can already use --tune.  Maybe HPC practicioners can have --without-
> hardening.  However, in the computing I do that needs to be high
> performance (*), it seems that the expensive computations are matrix
> multiplications, eigenvector decompositions and the like.  I wouldn't
> expect those kind of things to be hindered by hardening.
>
> (*) In my case, this is not about supercomputers or computer clusters,
> but about having software run fast enough on the hardware that is
> available.  In some situations, that's a fancy supercomputer, but often
> a simple laptop can do ... if the software is sufficiently optimised.

I agree that HPC practitioners can burn some CPU cycles and recompile the
world if they care so much about run-time performances.

To me, it is the same trade-off by HPC folks as custom / performance vs
portable / pre-built. :-)


Cheers,
simon


  reply	other threads:[~2022-05-02 18:10 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-03-21 13:34 Hardened toolchain zimoun
     [not found] ` <Mymdzxm--3-2@tutanota.com>
2022-03-22 19:06   ` zimoun
2022-03-22 20:02     ` kiasoc5--- via Development of GNU Guix and the GNU System distribution.
2022-03-25 19:39       ` kiasoc5--- via Development of GNU Guix and the GNU System distribution.
2022-03-25 22:54         ` zimoun
2022-03-26 19:33           ` kiasoc5--- via Development of GNU Guix and the GNU System distribution.
2022-03-26 22:02             ` kiasoc5--- via Development of GNU Guix and the GNU System distribution.
2022-03-27 20:06             ` zimoun
2022-03-27 20:22 ` Maxime Devos
2022-03-28  3:17   ` Maxim Cournoyer
2022-03-28  7:35     ` zimoun
2022-03-29  0:02     ` kiasoc5--- via Development of GNU Guix and the GNU System distribution.
2022-03-29 10:15     ` Ludovic Courtès
2022-04-14 18:59       ` kiasoc5--- via Development of GNU Guix and the GNU System distribution.
2022-04-15 15:18       ` jbranso
2022-04-15 16:04         ` Zhu Zihao
2022-04-15 16:34           ` raingloom
2022-04-26 11:07             ` Katherine Cox-Buday
2022-04-28 17:36               ` Aurora
2022-04-28 17:41                 ` Katherine Cox-Buday
2022-04-28 19:53                   ` Aurora
2022-04-28 17:50                 ` Vagrant Cascadian
2022-04-28 19:54                   ` Aurora
2022-04-29 10:31       ` zimoun
2022-04-29 15:51         ` kiasoc5--- via Development of GNU Guix and the GNU System distribution.
2022-05-02 14:55         ` Katherine Cox-Buday
2022-05-02 16:25         ` Maxime Devos
2022-05-02 17:41           ` zimoun [this message]
2022-05-02 21:10             ` Maxime Devos
  -- strict thread matches above, loose matches on Subject: below --
2022-04-15 20:36 Nathan Dehnel
2022-04-16  3:51 ` raingloom
2022-03-21  4:31 kiasoc5--- via Development of GNU Guix and the GNU System distribution.

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