#16490: Create a linear programming backend for cvxopt
-------------------------------------+-------------------------------------
Reporter: ingolfured | Owner: ingolfured
Type: enhancement | Status: new
Priority: minor | Milestone: sage-6.3
Component: linear | Resolution:
programming | Merged in:
Keywords: | Reviewers:
Authors: | Work issues:
Report Upstream: N/A | Commit:
Branch: | 2fc6f054ae7f6faa36782ba85829540c15e3720b
u/ingolfured/create_a_linear_programming_backend_for_cvxopt| Stopgaps:
Dependencies: |
-------------------------------------+-------------------------------------
Comment (by dimpase):
Replying to [comment:20 ncohen]:
> You put cvxopt before gurobi in the ordering of LP solvers: this list is
meant to be "use the fastest solver available installed on this computer".
Is CVXOPT faster than Gurobi ?
This list for making the most suitable for the task solver the default.
For the duration of a Sage session. E.g. it can be PPL, if you need to
solve badly conditioned LPs with huge coefficients, or it can be CVXOPT,
if you need an interior point solver as opposed to a simplex algorithm
solver.
>
> Besides:
>
> 1) It is useless to put anything after a solver which is installed by
default
huh?
>
> 2) PPL cannot really be a "default solver" as it misses the important
feature of being able to solve integer linear programs.
We have discussed this in April:
let me quote your email dated 22.04.14:
> > DP 1) I'd like this:
> > DP sage:
sage.numerical.backends.generic_backend.default_mip_solver(solver='PPL')
> > DP to work...
> NC Well. PPL is just missing from the list of keywords, it should only
be
> NC added there. Can you write the patch ? I will review it, it takes ten
> NC seconds.
--
Ticket URL: <http://trac.sagemath.org/ticket/16490#comment:21>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
--
You received this message because you are subscribed to the Google Groups
"sage-trac" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To post to this group, send email to [email protected].
Visit this group at http://groups.google.com/group/sage-trac.
For more options, visit https://groups.google.com/d/optout.
