#10879: add optional SCIP integer constraint solver
-------------------------------+--------------------------------------------
Reporter: malb | Owner: tbd
Type: enhancement | Status: new
Priority: major | Milestone: sage-5.0
Component: packages | Keywords: mip, mixed integer programming
Author: Martin Albrecht | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
-------------------------------+--------------------------------------------
Changes (by malb):
* cc: ncohen (removed)
* cc: ncohenm, schilly (added)
Old description:
> "SCIP is currently one of the fastest non-commercial mixed integer
> programming (MIP) solvers. It is also a framework for Constraint Integer
> Programming and branch-cut-and-price. It allows total control of the
> solution process and the access of detailed information down to the guts
> of the solver." -- http://scip.zib.de/
>
> Features interesting to Sage:
>
> * SCIP is pretty fast for Mixed Integer Programming
> * SCIP is a Constraint Integer Programming solver and allows non-linear
> constraints
> * SCIP's source code is available
>
> However, we don't have the right to redistribute the SCIP source code.
> Thus, the attached SPKG is empty except for the spkg-install script etc.
>
> To build a SCIP for Sage do:
> * download the ZIB Optmisation Suite from
> http://zibopt.zib.de/download.php?fname=ziboptsuite-2.0.1.tgz
> * place the files `scip-2.0.1.tgz` and `soplex-1.5.0.tgz` in the `src/`
> subdirectory of the attached SPKG
> * install the SPKG
> * apply the attached patch and `sage -b`
New description:
"SCIP is currently one of the fastest non-commercial mixed integer
programming (MIP) solvers. It is also a framework for Constraint Integer
Programming and branch-cut-and-price. It allows total control of the
solution process and the access of detailed information down to the guts
of the solver." -- http://scip.zib.de/
Features interesting to Sage:
* SCIP is pretty fast for Mixed Integer Programming
* SCIP is a Constraint Integer Programming solver and allows non-linear
constraints
* SCIP's source code is available
However, we don't have the right to redistribute the SCIP source code.
Thus, the attached SPKG is empty except for the spkg-install script etc.
To build a SCIP for Sage do:
* download the ZIB Optmisation Suite from
http://zibopt.zib.de/download.php?fname=ziboptsuite-2.0.1.tgz
* place the files `scip-2.0.1.tgz` and `soplex-1.5.0.tgz` in the `src/`
subdirectory of the attached SPKG
* install the SPKG
* apply the attached patch and `sage -b`
'''KNOWN ISSUES'''
* Sage crashes when SCIP variables are printed with SIGSEGV on OSX. It
works fine under Linux.
* the following doctests fail
{{{
sage -t -long -force_lib
devel/sage/doc/en/thematic_tutorials/linear_programming.rst # 9 doctests
failed
sage -t -long -force_lib devel/sage/sage/graphs/digraph.py # 1 doctests
failed
sage -t -long -force_lib devel/sage/sage/graphs/graph_coloring.py # 3
doctests failed
sage -t -long -force_lib devel/sage/sage/graphs/graph_generators.py # 2
doctests failed
sage -t -long -force_lib devel/sage/sage/numerical/knapsack.py # 4
doctests failed
sage -t -long -force_lib devel/sage/sage/numerical/mip.pyx # 11 doctests
failed
sage -t -long -force_lib devel/sage/sage/graphs/generic_graph.py # 18
doctests failed
}}}
--
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/10879#comment:2>
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 post to this group, send email to [email protected].
To unsubscribe from this group, send email to
[email protected].
For more options, visit this group at
http://groups.google.com/group/sage-trac?hl=en.
