Showing papers on "Distributed object published in 1982"
18 Aug 1982
TL;DR: An implementation of the large array concept as an ADA package (abstract data type) is described, as well as a particular tailoring of the concept for the NASA Finite Element Machine.
Abstract: A large array is an array whose storage is distributed among primary and secondary storage and whose processing may be distributed among several tasks in a distributed system. This paper presents a semantic model (set of language concepts) for representing large arrays in a distributed system in such a way that the performance realities inherent in the distributed storage and processing can be adequately represented. An implementation of the large array concept as an ADA package (abstract data type) is described, as well as a particular tailoring of the concept for the NASA Finite Element Machine. An example application program using the package is also described.
7 citations
01 Jan 1982
TL;DR: The major concepts and design issues are discussed, the alternative language mechanisms are described, and the different languages are compared.
Abstract: In response to the increasing interest in distributed systems, several high-level distributed programming languages have recently been developed. These languages contain message-passing based mechanisms for process interaction and support the execution of programs on distributed processors. This paper discusses the major concepts and design issues, describes the alternative language mechanisms, and compares the different languages.
7 citations
23 Jan 1982
TL;DR: Using this framework two particular approaches developed at Imperial College, Stable Modules and CONIC, are described as examples of a theoretical and a practical approach respectively to distributed computer systems for industrial real-time use.
Abstract: Two views, theoretical and practical, of distributed computer systems (DCS) for industrial real-time use are discussed. The mechanism required of the software for a DCS and the issues of interest in each of the major phases in a DCS lifecycle are presented. Using this framework two particular approaches developed at Imperial College, Stable Modules and CONIC, are described as examples of a theoretical and a practical approach respectively. Although they have much in common, the gulf between theory and practice is very wide. The difficulties of bridging this gulf is discussed.
1 citations
TL;DR: The concept of a dictory, a dictionary/directory facility, is developed as the focal point for extension into the distributed environment, and the impact of data models for distributed databases is considered.