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Hard  data_clique_70.dimacs

Problem typegraphpart
DescriptionQuadratic model for graph partitioning instance data_clique_70.dimacs
Objective sensemin
Variables211  (210 binary, 0 general integer, 1 continuous)
Nonlinear variables1
Nonlinear constraints1
Linear nonzeros141
Nonlinear nonzeros7246
Download data_clique_70.dimacs.pip.gz data_clique_70.dimacs.gms.gz data_clique_70.dimacs.mod.gz data_clique_70.dimacs.zpl.gz
Best known solution
Best known objective6348
Best known bound6348
OriginatorBissan Ghaddar, Miguel Anjos, and Frauke Liers
FormulatorMarc Pfetsch
DonatorMarc Pfetsch
References GhaddarAnjosLiers09
Additional informationThis is a quadratic model for the graph partitioning problem. The graphs are taken from the publication of Ghaddar et al. We used 3 parts of the partition to generate the quadratic instances. The model assigns each node to one of the three parts. Hence, the model is symmetric, which should probably be used in a solution algorithm.

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