#18871: MILP formulation for cutwidth
-------------------------+-------------------------------------------------
Reporter: | Owner:
dcoudert | Status: needs_info
Type: | Milestone: sage-6.8
enhancement | Resolution:
Priority: major | Merged in:
Component: graph | Reviewers: Nathann Cohen
theory | Work issues:
Keywords: | Commit:
cutwidth, MILP | 9ccfe02e0fa0f866c83b1db484dcb15a8786a512
Authors: David | Stopgaps:
Coudert |
Report Upstream: N/A |
Branch: |
public/18871 |
Dependencies: |
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Comment (by dcoudert):
Really sorry about that Volker. I forgot that my default solver is cplex
and the difference of timing is impressive (on my macbook air...)
{{{
confetti:sage dcoudert$ ./sage -btp
src/sage/graphs/graph_decompositions/cutwidth.pyx
...
Using --optional=cbc,gap_packages,gcc,mpir,python2,sage,scons
Doctesting 1 file using 4 threads.
sage -t src/sage/graphs/graph_decompositions/cutwidth.pyx
[56 tests, 2.28 s]
----------------------------------------------------------------------
All tests passed!
----------------------------------------------------------------------
Total time for all tests: 2.3 seconds
cpu time: 4.7 seconds
cumulative wall time: 2.3 seconds
}}}
I will simplify the tests and check with GLPK.
--
Ticket URL: <http://trac.sagemath.org/ticket/18871#comment:23>
Sage <http://www.sagemath.org>
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