GNU bug report logs - #19805
Numpy failures

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Federico Beffa <beffa <at> ieee.org>
Subject: bug#19819: closed (Re: bug#19805: Numpy failures)
Date: Fri, 11 Sep 2015 19:41:05 +0000

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Your bug report

#19805: Numpy failures

which was filed against the guix package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 19819 <at> debbugs.gnu.org.

-- 
19805: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=19805
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Contact help-debbugs <at> gnu.org with problems

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From: ludo <at> gnu.org (Ludovic Courtès)
To: Mark H Weaver <mhw <at> netris.org>
Cc: 19805-done <at> debbugs.gnu.org, Federico Beffa <beffa <at> ieee.org>
Subject: Re: bug#19805: Numpy failures
Date: Fri, 11 Sep 2015 21:40:11 +0200

This bug is moot now that NumPy uses OpenBLAS instead of ATLAS (commit
dbdfe515), so closing it.

The suggestion about propagating the #:substitutable? flag at
<https://debbugs.gnu.org/cgi/bugreport.cgi?bug=19805#11> remains valid,
but it’s a separate issue.

Ludo’.

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From: Federico Beffa <beffa <at> ieee.org>
To: Andreas Enge <andreas <at> enge.fr>
Cc: Guix-devel <guix-devel <at> gnu.org>, bug-guix <at> gnu.org
Subject: Re: Numpy failures
Date: Mon, 9 Feb 2015 09:30:16 +0100

Andreas Enge <andreas <at> enge.fr> writes:

> python-numpy-bootstrap currently fails its tests on hydra, which entails a
> bunch of other failures. On my own x86_64 machines, the build succeeds,
> however.

We believe the reason being the fact that hydra doesn't handle the flag
'#:substitutable?' properly. As a result we have the following
situation:

1. hydra builds a version of ATLAS optimized for its CPU locally.

2. 'python-numpy-bootstrap' and co., on some architectures, probably get
an incompatible version of ATLAS and therefore fail to pass some tests.

You can check in the build log of 'python-numpy-bootstrap' that ATLAS,
despite the flas, is substituted (no local build on the slave).

At some point we should fix the support for '#:substitutable?' on hydra
(or the upcoming 'guix publish').

Regards,
Fede

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