
Book contents
- Frontmatter
- Contents
- Preface
- Distributed Ada – the Issues
- Distributed Ada – a Case Study
- Parallel Ada for Symmetrical Multiprocessors
- The York Distributed Ada Project
- From DIADEM to DRAGOON
- Honeywell Distributed Ada – Approach
- Honeywell Distributed Ada – Implementation
- Ada for Tightly Coupled Systems
- A Pragmatic Approach to Distributed Ada for Transputers
- Distributed Ada on Shared Memory Multiprocessors
- The MUMS Multiprocessor Ada Project
- A Portable Common Executable Environment for Ada
- Supporting Reliable Distributed Systems in Ada 9X
The York Distributed Ada Project
Published online by Cambridge University Press: 13 October 2009
- Frontmatter
- Contents
- Preface
- Distributed Ada – the Issues
- Distributed Ada – a Case Study
- Parallel Ada for Symmetrical Multiprocessors
- The York Distributed Ada Project
- From DIADEM to DRAGOON
- Honeywell Distributed Ada – Approach
- Honeywell Distributed Ada – Implementation
- Ada for Tightly Coupled Systems
- A Pragmatic Approach to Distributed Ada for Transputers
- Distributed Ada on Shared Memory Multiprocessors
- The MUMS Multiprocessor Ada Project
- A Portable Common Executable Environment for Ada
- Supporting Reliable Distributed Systems in Ada 9X
Summary
ABSTRACT
This paper presents the current position of the York Distributed Ada Project. The project has developed an approach to the programming of loosely coupled distributed systems in Ada, this being based on a single Ada program consisting of virtual nodes which communicate by message passing. A prototype development environment has been produced to support this approach, and an example distributed embedded system has been built. Preliminary work has been undertaken on mechanisms to support the construction of fault-tolerant systems within the approach.
INTRODUCTION
The Ada programming language, together with an appropriate support environment, is well suited to the development of large software engineering applications. Many such projects involve programming embedded computer systems, which often include loosely coupled distributed processing resources — collections of processing elements which are connected by some communication system but which share no common memory. It is now a commonly accepted view (Wellingsl987) that the Ada language by itself does not provide adequate support for the programming of these systems. The York Distributed Ada (YDA) Project has addressed this problem and developed an approach which allows Ada programs to be constructed for execution on distributed systems. (The YDA project was originally funded through the UK's Alvey Software Engineering Directorate as part of the ASPECT(Hall1985) project. It is currently funded by the Admiralty Research Establishment.) The current position of the project is presented in this paper.
- Type
- Chapter
- Information
- Distributed Ada: Developments and ExperiencesProceedings of the Distributed Ada '89 Symposium, University of Southampton, 11–12 December 1989, pp. 67 - 104Publisher: Cambridge University PressPrint publication year: 1990
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