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From: Ricardo Wurmus <rekado@elephly.net>
To: Pjotr Prins <pjotr.public12@thebird.nl>
Cc: guix-devel@gnu.org, Dave Love <fx@gnu.org>
Subject: Re: OpenBLAS and performance
Date: Thu, 21 Dec 2017 00:02:55 +0100	[thread overview]
Message-ID: <878tdxxasg.fsf@elephly.net> (raw)
In-Reply-To: <20171220203215.GA8737@thebird.nl>


Pjotr Prins <pjotr.public12@thebird.nl> writes:

> On Wed, Dec 20, 2017 at 09:00:46PM +0100, Ricardo Wurmus wrote:
>> > I do think we need to default to a conservative openblas for general
>> > use. Question is how we make it fly on dedicated hardware.
>>
>> Have you tried preloading the special library with LD_PRELOAD?
>
> It is not a question of what I can do. It is a question of how we give
> other people the benefit of optimized libs in an elegant way.

I’m asking because preloading different BLAS libraries is a thing.  If
this works then we can ask people to just pick their favourite BLAS
library variant and preload it.  We don’t need to build all combinations
of library variants and applications.

> I think channels actually should make a difference if we don't cater
> in default Guix for such use cases.

I think channels (and really: alternative build farms) do make sense for
tuned builds.

--
Ricardo

GPG: BCA6 89B6 3655 3801 C3C6  2150 197A 5888 235F ACAC
https://elephly.net

  parent reply	other threads:[~2017-12-20 23:50 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-12-19 10:49 OpenBLAS and performance Pjotr Prins
2017-12-19 17:12 ` Ludovic Courtès
2017-12-20 11:50 ` Dave Love
2017-12-20 14:48   ` Dave Love
2017-12-20 15:06     ` Ricardo Wurmus
2017-12-22 12:24       ` Dave Love
2017-12-20 17:22     ` Pjotr Prins
2017-12-20 18:15       ` Ricardo Wurmus
2017-12-20 19:28         ` Pjotr Prins
2017-12-20 20:00           ` Ricardo Wurmus
2017-12-20 20:32             ` Pjotr Prins
2017-12-20 19:02               ` Eric Bavier
2017-12-21 16:38                 ` Dave Love
2017-12-20 23:02               ` Ricardo Wurmus [this message]
2017-12-21 10:36                 ` Pjotr Prins
2017-12-21 14:43           ` Ludovic Courtès
2017-12-22 14:35           ` Dave Love
2017-12-21 16:17         ` Dave Love
2017-12-21 16:46           ` Ricardo Wurmus
2017-12-21 14:55   ` Ludovic Courtès
2017-12-22 12:45     ` Dave Love
2017-12-22 15:10       ` Ludovic Courtès
2017-12-22 16:08         ` Pjotr Prins

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