[Dip-tickets] [Dip] #63: False "Problem infeasible"
Dip
coin-trac at coin-or.org
Thu Jan 13 10:21:27 EST 2011
#63: False "Problem infeasible"
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Reporter: vejlin | Owner:
Type: defect | Status: new
Priority: major | Version: trunk
Resolution: | Keywords:
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Comment (by vejlin):
The block file puts the 10 embedded disjoint knapsack problems in separate
blocks.
The error can be circumvented by artificially bounding all columns in the
parameter file:
ColumnLB = -1.0e4
ColumnUB = 1.0e4
This is not related to the issue with artificial bounds being needed for
unbounded pricing problems, since these knapsack problems are all bounded.
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Ticket URL: <https://projects.coin-or.org/Dip/ticket/63#comment:1>
Dip <https://projects.coin-or.org/Dip>
An extensible software framework for implementing decompositon-based bounding algorithms for use in solving large-scale discrete optimization problems.
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