NDLI: JavaSymphony: a system for development of locality-oriented distributed and parallel Java applications

Content Provider	IEEE Xplore Digital Library
Author	Fahringer, T.
Copyright Year	2000
Description	Author affiliation: Inst. for Software Sci., Wien Univ., Austria (Fahringer, T.)
Abstract	Most Java-based systems that support portable parallel and distributed computing either require the programmer to deal with intricate low-level details of Java which can be a tedious, time-consuming and error-prone task, or prevent the programmer from controlling locality of data. In this paper we describe JavaSymphony, a programming paradigm for distributed and parallel computing that provides a software infrastructure for wide classes of heterogeneous systems ranging from small-scale cluster computing to large scale wide-area meta-computing. The software infrastructure is written entirely in Java and runs on any standard compliant Java virtual machine. In contrast to most existing systems, JavaSymphony provides the programmer with the flexibility to control data locality and load balancing by explicit mapping of objects to computing nodes. Virtual architectures are specified to impose a virtual hierarchy on a distributed system of physical computing nodes. Objects can be mapped and dynamically migrated to arbitrary components of virtual architectures. A high-level API to hardware/software system parameters is provided to control mapping, migration, and load balancing of objects. Objects can interact through synchronous asynchronous and one-sided method invocation. Selective remote class loading may reduce the overall memory requirement of an application. Moreover; objects can be made persistent by explicitly storing and loading objects to/from external storage. A prototype of the JavaSymphony software infrastructure has been implemented. Preliminary experiments on a heterogeneous cluster of workstations are described that demonstrate reasonable performance values.
Starting Page	145
Ending Page	152
File Size	881717
Page Count	8
File Format	PDF
ISBN	0769508960
DOI	10.1109/CLUSTR.2000.889023
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-12-01
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Java Distributed computing Programming profession Control systems Load management Computer architecture Error correction Parallel programming Parallel processing Concurrent computing
Content Type	Text
Resource Type	Article

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