#19219: MILP: Add CyLP backend
-------------------------------+------------------------
Reporter: mkoeppe | Owner:
Type: enhancement | Status: new
Priority: major | Milestone: sage-6.9
Component: numerical | Resolution:
Keywords: lp | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
Dependencies: | Stopgaps:
-------------------------------+------------------------
Description changed by mkoeppe:
Old description:
> CyLP is a Cython interface to COIN-OR’s Linear and mixed-integer program
> solvers (CLP, CBC, and CGL).
>
> We should add a MILP backend that goes through CyLP, because the
> interface is much more complete than Sage's current COIN interface. In
> particular, quoting from CyLP's README:
>
> "CyLP’s unique feature is that you can use it to alter the solution
> process of the solvers from within Python. For example, you may define
> cut generators, branch-and-bound strategies, and primal/dual Simplex
> pivot rules completely in Python."
>
> https://github.com/coin-or/CyLP
>
> Of course, CyLP has an incompatible license (CPL), but it does not matter
> because COIN has that license already.
New description:
CyLP is a Cython interface to COIN-OR’s Linear and mixed-integer program
solvers (CLP, CBC, and CGL).
We should add a MILP backend that goes through CyLP, because the interface
is much more complete than Sage's current COIN interface. In particular,
quoting from CyLP's README:
"CyLP’s unique feature is that you can use it to alter the solution
process of the solvers from within Python. For example, you may define cut
generators, branch-and-bound strategies, and primal/dual Simplex pivot
rules completely in Python."
https://github.com/coin-or/CyLP
Of course, CyLP has an incompatible license (CPL), but it does not matter
because COIN has that license already.
Update: CyLP has various outstanding issues (https://github.com/coin-
or/CyLP/issues) that need working around or fixing
--
--
Ticket URL: <http://trac.sagemath.org/ticket/19219#comment:3>
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 https://groups.google.com/group/sage-trac.
For more options, visit https://groups.google.com/d/optout.
