[Cbc-tickets] [COIN-OR Branch-and-Cut MIP Solver] #62: Reading small factors from "mps-files"

COIN-OR Branch-and-Cut MIP Solver coin-trac at coin-or.org
Sat Nov 22 13:07:36 EST 2008


#62: Reading small factors from "mps-files"
-------------------------+--------------------------------------------------
 Reporter:  mserg        |       Owner:  somebody
     Type:  enhancement  |      Status:  new     
 Priority:  minor        |   Milestone:          
Component:  component1   |     Version:  2.0     
 Keywords:               |  
-------------------------+--------------------------------------------------
 I was surprised when cbcSolve.exe (2.1 stable release) reports about error
 on reading file "brandyx.mps" (see attached). Of course, small factor is
 not part of real model. This is the result of myself-design constraint
 propagation bounds tightener (my application use CBC as exe-program).

 From my point of view CBC has useless limitation on small factors. At
 worst CBC may set it to zero.

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Ticket URL: <https://projects.coin-or.org/Cbc/ticket/62>
COIN-OR Branch-and-Cut MIP Solver <http://projects.coin-or.org/Cbc>
An LP-based branch-and-cut MIP solver.



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