From: Len Brown <lenb@kernel.org>
To: Willy Tarreau <w@1wt.eu>
Cc: Andy Lutomirski <luto@kernel.org>,
Florian Weimer <fweimer@redhat.com>,
"Bae, Chang Seok" <chang.seok.bae@intel.com>,
Dave Hansen <dave.hansen@intel.com>, X86 ML <x86@kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
linux-abi@vger.kernel.org,
"libc-alpha@sourceware.org" <libc-alpha@sourceware.org>,
Rich Felker <dalias@libc.org>, Kyle Huey <me@kylehuey.com>,
Keno Fischer <keno@juliacomputing.com>
Subject: Re: Candidate Linux ABI for Intel AMX and hypothetical new related features
Date: Tue, 13 Apr 2021 15:51:50 -0400 [thread overview]
Message-ID: <CAJvTdKmLth==ZPv7ygLs0jFX7JRPVhVT82ZDoT4xcQRABEVTvQ@mail.gmail.com> (raw)
In-Reply-To: <20210413034346.GA22861@1wt.eu>
Thanks for sharing your perspective, Willy.
I agree that if your application is so sensitive that you need to hand-code
your own memcmp, then linking with (any) new version of (any) dynamic library
is a risk you must consider carefully.
AMX does the type of matrix multiplication that AI algorithms use.
In the unlikely event that you or one of the libraries you call are
doing the same,
then you will be very happy with AMX. Otherwise, you'll probably not use it.
I acknowledge the issue with the toolchain transparently using AVX-512
for copying data, and how that approach impacted systems with
a poor AVX-512 hardware implementation. FWIW. I'm not aware of any
plans to implicitly use AMX this way, and I'm not aware of any non-Xeon
AMX implementations in the near future.
cheers,
Len Brown, Intel Open Source Technology Center
next prev parent reply other threads:[~2021-04-13 19:52 UTC|newest]
Thread overview: 130+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-26 23:12 Candidate Linux ABI for Intel AMX and hypothetical new related features Andy Lutomirski
2021-03-26 23:18 ` Andy Lutomirski
2021-03-27 3:39 ` Len Brown
2021-03-27 9:14 ` Borislav Petkov
2021-03-27 9:58 ` Greg KH
2021-03-29 15:47 ` Len Brown
2021-03-29 16:38 ` Len Brown
2021-03-29 16:48 ` Florian Weimer
2021-03-29 18:14 ` Andy Lutomirski
2021-03-29 18:16 ` Andy Lutomirski
2021-03-29 22:38 ` Len Brown
2021-03-30 5:08 ` Andy Lutomirski
2021-03-30 5:50 ` Noah Goldstein
2021-03-30 17:01 ` Len Brown
2021-03-30 17:05 ` Andy Lutomirski
2021-03-30 17:56 ` Len Brown
2021-03-30 19:12 ` Dave Hansen
2021-03-30 20:20 ` Andy Lutomirski
2021-03-30 20:42 ` Len Brown
2021-03-30 22:01 ` David Laight
2021-03-31 16:31 ` Len Brown
2021-03-31 16:53 ` Andy Lutomirski
2021-03-31 21:42 ` Robert O'Callahan
2021-03-31 22:11 ` Len Brown
2021-03-31 22:28 ` Len Brown
2021-03-31 22:45 ` Andy Lutomirski
2021-04-09 20:52 ` Len Brown
2021-04-09 21:44 ` Andy Lutomirski
2021-04-11 19:07 ` Len Brown
2021-04-12 7:59 ` David Laight
2021-04-12 12:19 ` Borislav Petkov
2021-04-12 17:14 ` Sean Christopherson
2021-03-31 22:52 ` Borislav Petkov
2021-04-09 20:55 ` Len Brown
2021-03-28 0:53 ` Thomas Gleixner
2021-03-29 7:27 ` Peter Zijlstra
2021-03-29 15:06 ` Dave Hansen
2021-03-31 8:24 ` Borislav Petkov
[not found] ` <87lf9nk2ku.fsf@oldenburg.str.redhat.com>
2021-04-12 14:31 ` Borislav Petkov
2021-04-12 14:38 ` Florian Weimer
2021-04-12 15:08 ` Borislav Petkov
2021-04-12 15:10 ` Andy Lutomirski
2021-04-12 15:21 ` Andy Lutomirski
2021-04-12 23:46 ` Len Brown
2021-04-13 0:17 ` Thomas Gleixner
2021-04-13 1:25 ` Len Brown
2021-04-13 3:43 ` Willy Tarreau
2021-04-13 19:51 ` Len Brown [this message]
2021-04-14 9:58 ` Borislav Petkov
2021-04-14 10:06 ` Willy Tarreau
2021-04-14 10:08 ` Borislav Petkov
2021-04-14 21:57 ` Len Brown
2021-04-15 4:43 ` Borislav Petkov
2021-04-15 5:29 ` Willy Tarreau
2021-04-15 5:47 ` Borislav Petkov
2021-04-16 22:05 ` Len Brown
2021-04-19 14:14 ` Borislav Petkov
2021-04-19 18:18 ` Len Brown
2021-04-19 19:15 ` Borislav Petkov
2021-04-19 21:33 ` Len Brown
2021-04-19 21:58 ` Borislav Petkov
2021-04-23 19:35 ` Len Brown
2021-04-23 19:57 ` Borislav Petkov
2021-05-02 15:27 ` Len Brown
2021-05-03 5:18 ` Florian Weimer
2021-05-03 13:43 ` Dave Hansen
2021-05-03 13:47 ` Florian Weimer
2021-05-03 14:14 ` Dave Hansen
2021-05-07 18:44 ` Thomas Gleixner
2021-05-07 18:50 ` Andy Lutomirski
2021-05-07 19:22 ` Thomas Gleixner
2021-05-08 9:45 ` Thomas Gleixner
2021-05-18 20:39 ` Len Brown
2021-05-19 23:29 ` Andy Lutomirski
2021-05-20 19:16 ` Len Brown
2021-05-17 9:45 ` Thomas Gleixner
2021-05-17 9:56 ` Florian Weimer
2021-05-17 10:18 ` Thomas Gleixner
2021-05-21 16:29 ` Len Brown
2021-05-17 13:49 ` Arjan van de Ven
2021-05-20 15:35 ` Len Brown
2021-05-20 20:54 ` Thomas Gleixner
2021-05-20 21:13 ` Dave Hansen
2021-05-20 21:41 ` Len Brown
2021-05-20 22:53 ` Dave Hansen
2021-05-21 9:41 ` Thomas Gleixner
2021-05-21 14:44 ` Florian Weimer
2021-05-21 14:49 ` Peter Zijlstra
2021-06-23 15:06 ` Florian Weimer
2021-06-23 23:11 ` Len Brown
2021-06-28 10:14 ` Enrico Weigelt, metux IT consult
2021-06-28 12:49 ` Florian Weimer
2021-06-30 12:22 ` Enrico Weigelt, metux IT consult
2021-06-30 12:41 ` Willy Tarreau
2021-06-30 13:55 ` Arjan van de Ven
2021-06-30 15:20 ` Len Brown
2021-06-30 15:25 ` Enrico Weigelt, metux IT consult
2021-05-21 16:14 ` Dave Hansen
2021-05-21 16:19 ` Florian Weimer
2021-05-21 16:26 ` Len Brown
2021-05-21 16:28 ` Dave Hansen
2021-05-21 16:31 ` Andy Lutomirski
2021-05-21 19:10 ` Thomas Gleixner
2021-05-21 20:07 ` Andy Lutomirski
2021-05-21 21:43 ` Thomas Gleixner
2021-05-21 22:07 ` Len Brown
2021-05-21 22:46 ` Thomas Gleixner
2021-05-21 23:31 ` Len Brown
2021-05-22 7:16 ` Florian Weimer
2021-05-22 23:55 ` Andy Lutomirski
2021-05-21 23:06 ` Dave Hansen
2021-05-21 23:08 ` Len Brown
2021-05-21 19:05 ` Thomas Gleixner
2021-05-20 21:22 ` Len Brown
2021-05-20 21:41 ` Thomas Gleixner
2021-05-20 21:49 ` Len Brown
2021-05-21 9:26 ` Thomas Gleixner
2021-04-19 23:52 ` Paul Eggert
2021-04-13 20:16 ` Andy Lutomirski
2021-04-13 22:47 ` Len Brown
2021-04-13 22:58 ` Andy Lutomirski
2021-04-14 21:48 ` Len Brown
2021-04-15 16:24 ` Andy Lutomirski
2021-04-15 17:00 ` Dave Hansen
2021-04-15 17:38 ` Andy Lutomirski
2021-04-16 21:54 ` Len Brown
2021-04-16 22:03 ` Andy Lutomirski
2021-04-16 22:10 ` Len Brown
2021-04-16 22:14 ` Andy Lutomirski
2021-04-17 1:57 ` Len Brown
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