[Symphony-tickets] [SYMPHONY] #131: Error (lower bound decrease)
SYMPHONY
coin-trac at coin-or.org
Fri May 23 10:29:10 EDT 2014
#131: Error (lower bound decrease)
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Reporter: anh509 | Owner: tkr
Type: defect | Status: new
Priority: normal | Milestone:
Component: TreeManager | Version: trunk (SVN)
Keywords: |
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I suspect the lower bound of a node gets updated in
select_branching_object function in lp_solver in (best_can->objval).
The following errors are thrown from tm_func.c for the attached file.
#######Error: Child's lower bound (-1773182048431.944) is less than
parent's (-227.215)
#######Error: Node's lower bound (-1773182048431.944) is less than root's
(-236.362)
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Ticket URL: <https://projects.coin-or.org/SYMPHONY/ticket/131>
SYMPHONY <http://projects.coin-or.org/SYMPHONY>
The SYMPHONY framework for parallel branch-and-cut algorithms.
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