Problem zib54--U-U-E-N-C-A-N-N


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Nodes 54
Links 81
Demands 1501
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Originator ZIB, http://www.zib.de
Contributor Roland Wessaely, atesio GmbH, Zuse-Institute Berlin
Submission date 17.10.2005
Submit new solution or dual bound go...

Solutions provided to SNDlib:

objective contributor submission date additional information
10776270.42 Christian Raack 06.11.2006 edge-flow formulation, CPLEX 10.0, time limit 1h
10510917.66 Sebastian Orlowski 20.12.2005 taken from zib54--U-U-E-N-I-A-N-N
10334015.82 Christian Raack 06.11.2006 edge-flow formulation, CPLEX 10.0 plus flow-cutset inequalities, 30 minutes to optimality

statistics about all solutions

Dual bounds provided to SNDlib:

dual bound contributor submission date additional information
10334015.82 Christian Raack 06.11.2006 edge-flow formulation, CPLEX 10.0 plus flow-cutset inequalities, 30 minutes to optimality
9550751.11 Christian Raack 06.11.2006 edge-flow formulation, CPLEX 10.0, time limit 1h
9198895.68 Sebastian Orlowski 17.08.2006 path-flow LP with column generation, B&C with metric inequalities, time limit 1h

Note: we encourage you to submit dual bounds to a problem if you have them. However, in contrast to primal solutions, we cannot check dual bounds for validity, which is why dual bounds are only listed here together with their contributor.



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