Applying Scheduling by Edge Reversal to Constraint Partitioning

— Scheduling by Edge Reversal (SER) is a fully distributed scheduling mechanism based on the manipulation of acyclic orientations of a graph. This work uses SER to perform constraint partitioning of Constraint Satisfaction Problems (CSP). In order to apply the SER mechanism, the graph representing the constraints must receive an acyclic orientation. Since obtaining an optimal acyclic orientation is an NP-hard problem, this work studies three non-deterministic strategies known in the literature: Alg-Neigh, Alg-Edges, and Alg-Colour. We implemented the three algorithms and the SER scheduling mechanism, applying them to the CSP constraint networks generated from 3 applications. Our results show that SER has a great potential to perform a good partitioning of the constraint graphs. Keywords—Distributed scheduling, Scheduling by Edge Reversal, partitioning, Constraint Satisfaction Problems

• Type: Conference
• Year: 2003
• Where: sbacpad
• Authors: Marluce Rodrigues Pereira, Patrícia Kayser Vargas, Felipe M. G. França, Maria Clicia Stelling de Castro, Inês de Castro Dutra
• Keywords: Acyclic Orientation, Computer Architecture, Constraint Satisfaction Problems, Hardware, SBACPAD 2003, Scheduling Mechanism