#16490: Create a linear programming backend for cvxopt
-------------------------------------+-------------------------------------
Reporter: ingolfured | Owner: ingolfured
Type: enhancement | Status: needs_review
Priority: minor | Milestone: sage-6.3
Component: linear | Resolution:
programming | Merged in:
Keywords: | Reviewers:
Authors: | Work issues:
Report Upstream: N/A | Commit:
Branch: | 470d0cb5193d7d7f4118a20ea45791ddaef1aa9b
u/ingolfured/create_a_linear_programming_backend_for_cvxopt| Stopgaps:
Dependencies: |
-------------------------------------+-------------------------------------
Changes (by dimpase):
* commit: 6d17e0014dd4cb7c9ac4888af2c7966aad3d612d =>
470d0cb5193d7d7f4118a20ea45791ddaef1aa9b
Comment:
I'm trying to finish this off now, and I get
{{{
sage -t src/sage/numerical/backends/cvxopt_backend.pyx
**********************************************************************
File "src/sage/numerical/backends/cvxopt_backend.pyx", line 467, in
sage.numerical.backends.cvxopt_backend.CVXOPTBackend.solve
Failed example:
round(p.solve(), 2)
Expected:
pcost dcost gap pres dres k/t
0: -7.3165e+00 -2.3038e+01 6e+00 0e+00 2e+00 1e+00
1: -7.8209e+00 -1.0635e+01 1e+00 1e-16 3e-01 2e-01
2: -8.4714e+00 -1.0546e+01 1e+00 4e-16 2e-01 2e-01
3: -8.7876e+00 -8.8459e+00 3e-02 1e-16 6e-03 4e-03
4: -8.7999e+00 -8.8005e+00 3e-04 2e-16 6e-05 4e-05
5: -8.8000e+00 -8.8000e+00 3e-06 2e-16 6e-07 4e-07
6: -8.8000e+00 -8.8000e+00 3e-08 1e-16 6e-09 4e-09
Optimal solution found.
8.8
Got:
pcost dcost gap pres dres k/t
0: -7.3165e+00 -2.3038e+01 6e+00 0e+00 2e+00 1e+00
1: -7.8209e+00 -1.0635e+01 1e+00 1e-16 3e-01 2e-01
2: -8.4714e+00 -1.0546e+01 1e+00 3e-16 2e-01 2e-01
3: -8.7876e+00 -8.8459e+00 3e-02 6e-17 6e-03 4e-03
4: -8.7999e+00 -8.8005e+00 3e-04 2e-16 6e-05 4e-05
5: -8.8000e+00 -8.8000e+00 3e-06 2e-16 6e-07 4e-07
6: -8.8000e+00 -8.8000e+00 3e-08 1e-16 6e-09 4e-09
Optimal solution found.
8.8
**********************************************************************
1 item had failures:
1 of 53 in sage.numerical.backends.cvxopt_backend.CVXOPTBackend.solve
[201 tests, 1 failure, 0.11 s]
}}}
when I merge with the latest version, 6.3.beta6. Any idea why? (It's of
course easy to fix, looks like spacing has changed for some reason).
----
New commits:
||[http://git.sagemath.org/sage.git/commit/?id=470d0cb5193d7d7f4118a20ea45791ddaef1aa9b
470d0cb]||{{{Refactored the tests for solve in cvxopt_backend}}}||
--
Ticket URL: <http://trac.sagemath.org/ticket/16490#comment:29>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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