FiberSCIP - A shared memory parallelization of SCIP

Please always quote using this URN: urn:nbn:de:0297-zib-42595
  • Recently, parallel computing environments have become significantly popular. In order to obtain the benefit of using parallel computing environments, we have to deploy our programs for these effectively. This paper focuses on a parallelization of SCIP (Solving Constraint Integer Programs), which is a MIP solver and constraint integer programming framework available in source code. There is a parallel extension of SCIP named ParaSCIP, which parallelizes SCIP on massively parallel distributed memory computing environments. This paper describes FiberSCIP, which is yet another parallel extension of SCIP to utilize multi-threaded parallel computation on shared memory computing environments, and has the following contributions: First, the basic concept of having two parallel extensions and the relationship between them and the parallelization framework provided by UG (Ubiquity Generator) is presented, including an implementation of deterministic parallelization. Second, the difficulties to achieve a good performance that utilizes all resources on an actual computing environment and the difficulties of performance evaluation of the parallel solvers are discussed. Third, a way to evaluate the performance of new algorithms and parameter settings of the parallel extensions is presented. Finally, current performance of FiberSCIP for solving mixed-integer linear programs (MIPs) and mixed-integer non-linear programs (MINLPs) in parallel is demonstrated.

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Author:Yuji Shinano, Stefan Heinz, Stefan Vigerske, Michael Winkler
Document Type:ZIB-Report
Tag:MINLP; MIP; SCIP; branch-and-bound; constraint integer programming; deterministic parallelism; mixed integer nonlinear programming; mixed integer programming; parallel
MSC-Classification:68-XX COMPUTER SCIENCE (For papers involving machine computations and programs in a specific mathematical area, see Section -04 in that area)
90-XX OPERATIONS RESEARCH, MATHEMATICAL PROGRAMMING
CCS-Classification:D. Software
Date of first Publication:2013/09/27
Series (Serial Number):ZIB-Report (13-55)
ISSN:1438-0064
Licence (German):License LogoCreative Commons - Namensnennung

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