From: Dave Love <fx@gnu.org>
To: Ricardo Wurmus <rekado@elephly.net>
Cc: guix-devel@gnu.org
Subject: Re: OpenBLAS and performance
Date: Fri, 22 Dec 2017 12:24:32 +0000 [thread overview]
Message-ID: <87wp1f0x33.fsf@albion.it.manchester.ac.uk> (raw)
In-Reply-To: <87k1xhxwuu.fsf@elephly.net> (Ricardo Wurmus's message of "Wed, 20 Dec 2017 16:06:17 +0100")
Ricardo Wurmus <rekado@elephly.net> writes:
>> I was confused. I see the only version of the library shipped is built
>> with pthreads. I think there should be serial, pthreads, and OpenMP
>> versions, as for Fedora.
>
> Do these library variants have the same binary interface, so that a user
> could simply preload one of them to override the default variant we use
> in the input graph of a given package?
Yes. You can use LD_LIBRARY_PATH as normal if you have variants with
the right soname, like the trivial shims in the example I referenced.
You probably want versions with the implementation-specific names too.
next prev parent reply other threads:[~2017-12-22 12:24 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 [this message]
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
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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