#9617: Broken export of LP files....
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Reporter: ncohen | Owner: jason, jkantor
Type: defect | Status: needs_review
Priority: major | Milestone: sage-4.5.2
Component: numerical | Keywords: CPLEX, GLPK, glpsol, MPS, file
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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Comment(by ncohen):
By the way, why do you think the non-termination is a bug ?
It just takes ages to solve, that's all... Sometimes the solver use non-
deterministic methods, or detect a good cut for some reason... It would be
weird to find out that the same problem always takes ages to solve through
Sage, and is quickly done with through files, but other than this a LP
which takes ages to be solved happens quite often.
For example the pretty pictures displayed there :
http://www-sop.inria.fr/members/Nathann.Cohen/acyclicedgecoloring/
stop at step 10. The reason is that the LP I wrote for 12 was still
running after 4 days.
Nathann
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9617#comment:5>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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