#10151: Update calls to MixedIntegerLinearProgram and its solve function to
follow
the new interface
----------------------------------+-----------------------------------------
Reporter: ncohen | Owner: ncohen
Type: defect | Status: needs_review
Priority: major | Milestone: sage-4.6
Component: linear programming | Keywords:
Author: Nathann Cohen | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
----------------------------------+-----------------------------------------
Changes (by ncohen):
* status: new => needs_review
Old description:
New description:
Right now, the followinjg is happening
{{{
#!python
sage: g = graphs.PetersenGraph()
sage: g.dominating_set()
IBM ILOG License Manager: "IBM ILOG Optimization Suite for Academic
Initiative" is accessing CPLEX 12 with option(s): "e m b q ".
[4, 6, 7]
sage: g.dominating_set(solver = "GLPK")
---------------------------------------------------------------------------
ValueError Traceback (most recent call
last)
/auto/sop-nas2a/u/sop-nas2a/vol/home_mascotte/ncohen/<ipython console> in
<module>()
/home/ncohen/sage/local/lib/python2.6/site-
packages/sage/graphs/generic_graph.pyc in dominating_set(self,
independent, value_only, solver, verbose)
5666 return p.solve(objective_only=True, solver=solver,
log=verbose)
5667 else:
-> 5668 p.solve(solver=solver, log=verbose)
5669 b=p.get_values(b)
5670 return [v for v in g.vertices() if b[v]==1]
/home/ncohen/sage/local/lib/python2.6/site-packages/sage/numerical/mip.so
in sage.numerical.mip.MixedIntegerLinearProgram.solve
(sage/numerical/mip.c:5813)()
ValueError: Solver argument deprecated. This parameter now has to be set
when calling the class' constructor
}}}
The new interface between Sage and the LP solvers requires the solver's
name to be given when the constructor is called.
This patch applied, all is fine :
{{{
#!python
sage: g = graphs.PetersenGraph()
sage: g.dominating_set()
IBM ILOG License Manager: "IBM ILOG Optimization Suite for Academic
Initiative" is accessing CPLEX 12 with option(s): "e m b q ".
[4, 6, 7]
sage: g.dominating_set(solver = "GLPK")
[0, 2, 6]
}}}
Apply first :
* #10043
* #10101
* #9698
* #9581
* #10150
This long list of undeserved dependencies is here to prevent this patch
from having to be rebased, as it touches many files almost everywhere.
--
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/10151#comment:1>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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