[Clp-tickets] [COIN-OR Linear Programming Solver] #81: Hitting assertion in threaded cbc run inside ClpSimplexDual

COIN-OR Linear Programming Solver coin-trac at coin-or.org
Tue Feb 14 05:47:39 EST 2017


#81: Hitting assertion in threaded cbc run inside ClpSimplexDual
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 Reporter:  Eberon      |      Owner:  somebody
     Type:  defect      |     Status:  new
 Priority:  major       |  Milestone:
Component:  component1  |    Version:
 Keywords:              |
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 Dear all,

 currently I try to test the Cbc solver as an replacement of mine old
 (commercial) MIP solver. A set of optimizations are done in row (always
 the same layout, but a different setup, using the Cbc threading feature),
 but currently I hit the following assertion in the ClpSimplexDual Method
 (that's why I post it to the Clp page):

 ClpSimplexDual.cpp:2403: int ClpSimplexDual::updateDualsInDual(CoinIndexed
 Vector*, CoinIndexedVector*, CoinIndexedVector*, double, double&, bool):
 Assertion `iStatus>0' failed.

 What's the reason to hit this assertion? Is there a way to fix this
 assertion on the Clp site or must the reason be fixed from the user point
 of view?

 I use the the current stable branch.

 Thank you very much for your help.

--
Ticket URL: <https://projects.coin-or.org/Clp/ticket/81>
COIN-OR Linear Programming Solver <http://projects.coin-or.org/Clp>
A linear programming solver.



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