#20406: get_solver should allow passing a function (a solver factory) as the 
solver
argument
-------------------------------------+-------------------------------------
       Reporter:  mkoeppe            |        Owner:
           Type:  enhancement        |       Status:  new
       Priority:  major              |    Milestone:  sage-7.2
      Component:  numerical          |   Resolution:
       Keywords:  lp                 |    Merged in:
        Authors:  Matthias Koeppe    |    Reviewers:
Report Upstream:  N/A                |  Work issues:
         Branch:                     |       Commit:
  u/mkoeppe/get_solver_factory       |  b4146a786814506fda760abd4dd25b5793c7ce68
   Dependencies:                     |     Stopgaps:
-------------------------------------+-------------------------------------
Changes (by {'newvalue': u'Matthias Koeppe', 'oldvalue': ''}):

 * cc: dimpase, vdelecroix (added)
 * commit:   => b4146a786814506fda760abd4dd25b5793c7ce68
 * author:   => Matthias Koeppe


Old description:

> For example, to use GLPK's exact simplex algorithm:
>
> {{{
> def glpk_exact_solver():
>     b = get_solver("GLPK")
>     b.solver_parameter("simplex_or_intopt", "exact_simplex_only")
>     return b
>
> delsarte_bound_additive_hamming_space(19,15,7,solver=glpk_exact_solver)
> }}}

New description:

 For example, to use GLPK's exact simplex algorithm:

 {{{
 from sage.numerical.backends.generic_backend import get_solver
 def glpk_exact_solver():
     b = get_solver("GLPK")
     b.solver_parameter("simplex_or_intopt", "exact_simplex_only")
     return b

 delsarte_bound_additive_hamming_space(19,15,7,solver=glpk_exact_solver)
 }}}

--

Comment:

 New commits:
 
||[http://git.sagemath.org/sage.git/commit/?id=b4146a786814506fda760abd4dd25b5793c7ce68
 b4146a7]||{{{get_solver: Allow a callable as the solver argument}}}||

--
Ticket URL: <http://trac.sagemath.org/ticket/20406#comment:2>
Sage <http://www.sagemath.org>
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