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Solving Open MIP Instances with ParaSCIP on Supercomputers using up to 80,000 Cores

  • This paper describes how we solved 12 previously unsolved mixed-integer program- ming (MIP) instances from the MIPLIB benchmark sets. To achieve these results we used an enhanced version of ParaSCIP, setting a new record for the largest scale MIP computation: up to 80,000 cores in parallel on the Titan supercomputer. In this paper we describe the basic parallelization mechanism of ParaSCIP, improvements of the dynamic load balancing and novel techniques to exploit the power of parallelization for MIP solving. We give a detailed overview of computing times and statistics for solving open MIPLIB instances.
Author:Yuji ShinanoORCiD, Tobias AchterbergORCiD, Timo BertholdORCiD, Stefan Heinz, Thorsten KochORCiD, Michael Winkler
Document Type:In Proceedings
Parent Title (English):Proc. of 30th IEEE International Parallel & Distributed Processing Symposium
Year of first publication:2016
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