Title
Constraint Programming Approach to Reconfigurable Processor Extension Generation and Application Compilation
Abstract
In this article, we present a constraint programming approach for solving hard design problems present when automatically designing specialized processor extensions. Specifically, we discuss our approach for automatic selection and synthesis of processor extensions as well as efficient application compilation for these newly generated extensions. The discussed approach is implemented in our integrated design framework, IFPEC, built using Constraint Programming (CP). In our framework, custom instructions, implemented as processor extensions, are defined as computational patterns and represented as graphs. This, along with the graph representation of an application, provides a way to use our CP framework equipped with subgraph isomorphism and connected component constraints for identification of processor extensions as well as their selection, application scheduling, binding, and routing. All design steps assume architectures composed of runtime reconfigurable cells, implementing selected extensions, tightly connected to a processor. An advantage of our approach is the possibility of combining different heterogeneous constraints to represent and solve all our design problems. Moreover, the flexibility and expressiveness of the CP framework makes it possible to solve simultaneously extension selection, application scheduling, and binding and improve the quality of the generated results. The article is largely illustrated with experimental results.
Year
DOI
Venue
2012
10.1145/2209285.2209289
TRETS
Keywords
Field
DocType
hard design problem,cp framework,application scheduling,constraint programming approach,reconfigurable processor extension generation,design problem,integrated design framework,efficient application compilation,design step,application compilation,specialized processor extension,processor extension,graph representation,constraint programming,connected component,scheduling
Graph,Scheduling (computing),Computer science,Constraint programming,Parallel computing,Real-time computing,Integrated design,Connected component,Subgraph isomorphism problem,Graph (abstract data type),Expressivity,Distributed computing
Journal
Volume
Issue
ISSN
5
2
1936-7406
Citations 
PageRank 
References 
14
0.65
35
Authors
5
Name
Order
Citations
PageRank
Kevin Martin1436.76
Christophe Wolinski229728.34
Krzysztof Kuchcinski377566.42
Antoine Floch4382.42
François Charot513615.93