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[Bug-glpk] [Fwd: Re: glpk prints warnings which lead to failing sagemath
[Bug-glpk] [Fwd: Re: glpk prints warnings which lead to failing sagemath tests]
Mon, 26 Feb 2018 22:21:48 +0300
-------- Forwarded Message --------
From: Tobias Hansen <address@hidden>
To: Andrew Makhorin <address@hidden>, Sébastien Villemot
Cc: address@hidden, address@hidden
Subject: Re: glpk prints warnings which lead to failing sagemath tests
Date: Mon, 26 Feb 2018 18:56:47 +0100
On 02/26/2018 04:46 PM, Andrew Makhorin wrote:
> On Mon, 2018-02-26 at 12:00 +0100, Sébastien Villemot wrote:
>> Dear GLPK maintainer,
>> I received the attached bug report and patch for the glpk package in Debian.
>> What’s your take on this? Should I apply the patch, or is this something that
>> should better be fixed at the sagemath level?
>> P.S.: please keep all addresses in CC when replying.
> Thank you for your bug report.
> Could you please explain in more details how glpk is tested? Both glpk
> lp and mip solvers issue many messages to the standard output, so it is
> unclear to me how some of the messages may affect the tests.
> Andrew Makhorin
one example that I checked was using the mip solver (not sure if other solvers
are affected) with msg_lev set to GLP_MSG_OFF. Normally there is no terminal
output, now there is the message "Long-step dual simplex will be used". GLPK is
used from a Python program which checks the terminal output in its test suite.
>> MHTML Document attachment (Bug#891465: glpk: prints warnings which
>> lead to failing sagemath tests)
>>> -------- Forwarded Message --------
>>> From: Tobias Hansen <address@hidden>
>>> Reply-to: Tobias Hansen <address@hidden>, address@hidden
>>> To: address@hidden
>>> Subject: Bug#891465: glpk: prints warnings which lead to failing
>>> sagemath tests
>>> Date: Sun, 25 Feb 2018 20:54:19 +0100
>>> Source: glpk
>>> Version: 4.65-1
>>> Severity: normal
>>> Tags: patch
>>> Hi there,
>>> since version 4.65 glpk started to frequently print the message "Long-step
>>> dual simplex will be used", leading to many failed tests for sagemath and
>>> sagemath failing to build. Not sure if it's a bug in glpk but it seems to
>>> me it shouldn't print this. Could you maybe deactivate the messages to
>>> allow sagemath to build?
- [Bug-glpk] [Fwd: Re: glpk prints warnings which lead to failing sagemath tests],
Andrew Makhorin <=