[Couenne-tickets] [Couenne] #36: Different ("optimal") solutions between 0.4.8. and 0.5.0/0.5.6

Couenne coin-trac at coin-or.org
Mon Jul 18 12:21:10 EDT 2016


#36: Different ("optimal") solutions between 0.4.8. and 0.5.0/0.5.6
-----------------------+----------------------
  Reporter:  coniglio  |      Owner:  pbelotti
      Type:  defect    |     Status:  new
  Priority:  major     |  Milestone:
 Component:  Couenne   |    Version:
Resolution:            |   Keywords:
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Comment (by coniglio):

 Extra bit of info: Baron 16.4.4 finds the same solution as Couenne 0.4.8:

 ===========================================================================
 BARON 16.4.4 (2016.04.04): 8687 iterations, optimal within tolerances.
 Objective 30.40816327
 Objective lower bound = 30.4081632654, upper bound = 30.4081936736
 barstatus = 1, modelstatus = 1
 max nodes in memory = 1498
 optimum found at node 8687
 Baron run time (excluding setup) = 50.02 seconds

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Ticket URL: <https://projects.coin-or.org/Couenne/ticket/36#comment:2>
Couenne <https://projects.coin-or.org/Couenne>
Couenne, a solver for non-convex MINLP



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