KAYAASLAN, Enver; LAMBERT, Thomas; MARCHAL, Loris; UÇAR, Bora

doi:10.1016/j.tcs.2017.09.037

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KAYAASLAN, Enver
Optimisation des ressources : modèles, algorithmes et ordonnancement [ROMA]

LAMBERT, Thomas
Reformulations based algorithms for Combinatorial Optimization [Realopt]

MARCHAL, Loris
Optimisation des ressources : modèles, algorithmes et ordonnancement [ROMA]

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Article de revue

Ce document a été publié dans

Theoretical Computer Science. 2018-01, vol. 707, p. 1-23

Elsevier

Résumé en anglais

We consider a variant of the well-known, NP-complete problem of minimum cut linear arrangement for directed acyclic graphs. In this variant, we are given a directed acyclic graph and we are asked to find a topological ordering such that the maximum number of cut edges at any point in this ordering is minimum. In our variant, the vertices and edges have weights, and the aim is to minimize the maximum weight of cut edges in addition to the weight of the last vertex before the cut. There is a known, polynomial time algorithm [Liu, SIAM J. Algebra. Discr., 1987] for the cases where the input graph is a rooted tree. We focus on the instances where the input graph is a directed series-parallel graph, and propose a polynomial time algorithm, thus expanding the class of graphs for which a polynomial time algorithm is known. Directed acyclic graphs are used to model scientific applications where the vertices correspond to the tasks of a given application and the edges represent the dependencies between the tasks. In such models, the problem we address reads as minimizing the peak memory requirement in an execution of the application. Our work, combined with Liu's work on rooted trees addresses this practical problem in two important classes of applications.< Réduire

Mots clés en anglais

Peak memory minimization

Series-parallel graphs

Scheduling

URI

https://oskar-bordeaux.fr/handle/20.500.12278/193200

DOI

http://dx.doi.org/10.1016/j.tcs.2017.09.037

Project ANR

Solveurs pour architectures hétérogènes utilisant des supports d'exécution - ANR-13-MONU-0007

Origine

Importé de hal

Unités de recherche

Institut de Mathématiques de Bordeaux (IMB) - UMR 5251