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Cluster Computing and JCSP Networking

Welch, Peter H. and Vinter, Brian (2002) Cluster Computing and JCSP Networking. In: Pascoe, James and Welch, Peter H. and Loader, Roger and Sunderam, Vaidy, eds. Communicating Process Architectures 2002. Concurrent Systems Engineering . IOS Press, Amsterdam, Netherlands, pp. 203-222. ISBN 978-1-58603-268-5. (KAR id:13732)


Hoare's algebra of Communicating Sequential Processes (CSP) enables a view of systems as layered networks of concurrent components, generating and responding to events communicated to each other through channels, barriers and other formally defined synchronisation primitives. The resulting image and discipline is close to hardware design and correspondingly easy to visualise, reason about, compose and scale. JCSP is a library of Java packages providing an (occam) extended version of this model that may be used alongside, or as a replacement for, the very different threads-and-monitors concurrency mechanisms built into Java. The current release (JCSP 1.0) supports concurrency within a single Java Virtual Machine (which may be multi-processor). This paper reports early experiments with, an extension of JCSP for the dynamic construction of CSP networks across distributed environments. The aims of are to simplify the construction and programming of dynamically distributed and parallel systems. It provides high-level support for CSP architectures, unifying concurrency logic within and between processors. The experiments are on some classical HPC problems, an area of work for which was not primarily designed. However, low overheads in the supporting infrastructure were a primary consideration - along with an intuitive and high-level distributed programming model (based on CSP). Results reported show JCSP holding up well against - and often exceeding - the performance obtained from existing tools such as mpiJava and IBM's TSpaces. The experimental platform was a cluster of 16 dual-processor PIII Linux machines. It is expected that future optimisations in the pipeline for the infrastructure will improve the results presented here. JCSP and were developed at the University of Kent.

Item Type: Book section
Uncontrolled keywords: concurrency, shared channels, dynamic construction
Subjects: Q Science > QA Mathematics (inc Computing science) > QA 76 Software, computer programming,
Divisions: Divisions > Division of Computing, Engineering and Mathematical Sciences > School of Computing
Depositing User: Mark Wheadon
Date Deposited: 24 Nov 2008 17:59 UTC
Last Modified: 12 Jul 2022 10:39 UTC
Resource URI: (The current URI for this page, for reference purposes)

University of Kent Author Information

Welch, Peter H..

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