#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:71 drkirkby]:
> * Try an earlier release (i.e newer than 0.9, but not the latest)
I don't see any benefit in this. The only justification I can find
mentioned in this thread for updating cvxopt is that the current version
is "ancient". Unless someone comes up with a more compelling reason for
updating, I would suggest sticking to the current spkg until problems with
cvxopt-1.1.2 are resolved.
> * Contact the author, making him aware of the bug Peter found - i.e.
passing 64-bit pointers when the code is expecting 32-bit ones. Also point
out there are a lot of variables declared, which are never used.
To be precise, the code is passing pointers to 64-bit objects to functions
expecting pointers to 32-bit objects.
I started to look at how difficult it would be to fix this morning but ran
out of train journey before I got very far.
Also, whilst reading through the revision history for cvxopt, I notice
that there have been a couple of changes that don't appear to be backward
compatible: The `cvxopt.random` module was deleted in 0.9.2 and the
definition of `bool(A)` (where `A` is a matrix) was changed in 1.1. Are
these changes likely to impact other components of Sage?
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/6456#comment:72>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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