Title
Synchronized sweep algorithms for scalable scheduling constraints
Abstract
This paper introduces a family of synchronized sweep-based filtering algorithms for handling scheduling problems involving resource and precedence constraints. The key idea is to filter all constraints of a scheduling problem in a synchronized way in order to scale better. In addition to normal filtering mode, the algorithms can run in greedy mode, in which case they perform a greedy assignment of start and end times. The filtering mode achieves a significant speed-up over the decomposition into independent cumulative and precedence constraints, while the greedy mode can handle up to 1 million tasks with 64 resource constraints and 2 million precedences. These algorithms were implemented in both CHOCO and SICStus.
Year
DOI
Venue
2015
10.1007/s10601-014-9172-8
Constraints
Keywords
Field
DocType
Global constraint,Cumulative,Scalability,Fixpoint,Sweep
Mathematical optimization,Job shop scheduling,Computer science,Scheduling (computing),Filter (signal processing),Algorithm,Fixed point,Scalability
Journal
Volume
Issue
ISSN
20
2
1383-7133
Citations 
PageRank 
References 
0
0.34
14
Authors
3
Name
Order
Citations
PageRank
Arnaud Letort1121.76
Mats Carlsson297579.24
Nicolas Beldiceanu354751.14