From: Eric Bavier <ericbavier@openmailbox.org>
To: ludo@gnu.org
Cc: guix-devel@gnu.org,
Guix-devel
<guix-devel-bounces+ericbavier=openmailbox.org@gnu.org>
Subject: Re: CPU-specific builds
Date: Mon, 03 Oct 2016 09:19:41 -0500 [thread overview]
Message-ID: <b091cb2858f70aaf9f001e95841bca3c@openmailbox.org> (raw)
In-Reply-To: <871szyho3h.fsf@gnu.org>
On 2016-10-02 08:33, ludo@gnu.org wrote:
> Hi Ben,
>
> Ben Woodcroft <b.woodcroft@uq.edu.au> skribis:
>
>> Currently, we build a single set of x86_64 packages assuming SSE but
>> not SSE2 instructions, but sometimes it would be nice to use more
>> recent instructions like AVX.
>
> Ideally, software for which using these CPU extensions makes a
> significant difference would do what glibc does, which is to provide
> several implementations of the relevant functions (one for SSE2, one
> for
> AVX, etc.) and have the right one be selected at load time via an IFUNC
> or similar mechanism.
Our openblas package does this, too.
--
`~Eric
next prev parent reply other threads:[~2016-10-03 14:20 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-01 10:43 CPU-specific builds Ben Woodcroft
2016-10-02 13:33 ` Ludovic Courtès
2016-10-03 14:19 ` Eric Bavier [this message]
2016-10-10 13:45 ` Ben Woodcroft
2016-10-11 21:20 ` Ludovic Courtès
2016-10-12 12:22 ` Ludovic Courtès
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