#12220: Updated CBC spkg
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Reporter: ncohen | Owner: ncohen
Type: enhancement | Status: needs_info
Priority: major | Milestone: sage-4.8
Component: linear programming | Keywords:
Work_issues: | Upstream: N/A
Reviewer: | Author: Nathann Cohen
Merged: | Dependencies:
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Comment(by john_perry):
Update: `assignSolver()` always segfaults when I pass it an
`OsiSolverInterface()`. I'll look through the examples to try & figure out
why, but here's an interesting comment in the Coin source:
> Note that CbcModel clones solvers with abandon. Unless you have a deep
understanding of the workings of CbcModel, the only time you want to claim
ownership [of a solver] is when you're about to delete the CbcModel object
but want the solver to continue to exist (as, for example, when
branchAndBound has finished and you want to hang on to the answer).
That happens to be our situation.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/12220#comment:32>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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