Distribution of Ada tasks onto a heterogeneous environment

Abstract

This paper describes the design and implementation of an Ada system for heterogeneous distributed embedded targets. It permits a single Ada program to run in a loosely coupled, heterogeneous multi-processor environment, enabling the development of a distributed system with Ada's full checking facilities, The units of distribution are task objects, and we examine the impact of this decision on program design. The prototype consists of an Ada-to-C translator and run time routines (RTR) for distributed tasking support. The translator works on IJNIX 1 workstations, and its target program runs on VxWorks2. RTR uses socket facilities for inter-and intra-processor communication to implement Ada tasking. This paper also describes the task monitoring facility which monitors and visualizes interactions among tasks.

Automated conflict-free distributed implementation of component-based models

“…Most of the work in this area focuses on task distribution in heterogeneous multi-processor platforms [17] and client-server implementation of remote rendezvous [8], where the issue of distributed conflicts are unimportant.…”