#6456: Upgrade cvxopt in sage from 0.9 to 1.1.2
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Reporter: was | Owner: mabshoff
Type: defect | Status: needs_work
Priority: major | Milestone: sage-4.5.2
Component: packages | Keywords:
Author: schilly, dimpase | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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Comment(by pjeremy):
Replying to [comment:54 dimpase]:
> Replying to [comment:50 pjeremy]:
> > 6456-freebsd-spkg-install.patch adds support for FreeBSD (this is a
port of the patch in #9601). I have compile-tested this but not yet tried
to use the resultant module.
> >
> > Note that further changes are necessary for cvxopt-1.1.2.p1.spkg to
work on most 64-bit OSs.
>
> could it simply be that some -m64 or whatever flag settings to be added
to spkg-install?
No. The code is wrong/buggy/broken. The breakage is probably hidden in
32-bit builds.
> It can very well be that the standalone cvxopt does not work on that
fancy 64-bit systems anyway. If this is the case, I am not willing to do
anything on this at this ticket.
I do not consider an amd64/x86_64 system to be "fancy". I suspect that
anyone wanting to do serious work with Sage will be using a 64-bit system.
> Last but not least, I would object in strongest possible terms to call a
blocker an issue that is present in the current cvxopt (0.9) spkg. We must
upgrade, and then try to improve, and not sit endlessly here...
There is little point in upgrading to a package that is known to be
broken. This particular bug does not appear to be present in cvxopt-0.9
(at least I can't find the "incompatible pointer type" warnings in either
my own or boxen builds) so by upgrading, we would be introducing a
regression into Sage. I am very concerned at this "release it now, we'll
make it work later" mentality. If Sage is going to be a viable
alternative to the M's, it needs to be trustworthy - complaints of
"feature X is missing" are easily rectified, claims of "Sage gave me wrong
answers" can quickly turn into "you can't trust the output from Sage" and
are far more difficult to refute.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/6456#comment:67>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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