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A Distributed Object-Oriented Language for Heterogeneous Computer Networks

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Abstract

This paper presents an object-oriented distributed language, called CUBL++, that is a powerful tool for developing distributed applications on heterogeneous computer networks. CUBL++ is based on objects, called c_units, that communicate through synchronous and asynchronous message passing. A c_unit is an active object composed of data (state) and procedures as traditional (passive) objects, together with the capability of queueing incoming messages, when needed. C_units allow a programmer to implement an application on a heterogeneous architecture, as they communicate with each other without taking into account the physical characteristics of the actual node where they are located. We have experimented CUBL++ on a network where UNIX workstations, WindowsNT personal computers and transputers cooperate in order to perform a given task. In particular, this paper gives a brief description of a distributed system for image processing that has been implemented by using CUBL++.

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Authors and Affiliations

  1. Dipartimento di Ingegneria dell'Informazione, University of Parma, Viale delle Scienze, 43100, Parma, Italy

    Agostino Poggi

  2. Dipartimento di Ingegneria Elettrica ed Elettronica, University of Cagliari, Piazza D'Armi, 09123, Cagliari, Italy

    Giuliano Armano

Authors
  1. Agostino Poggi
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  2. Giuliano Armano
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Poggi, A., Armano, G. A Distributed Object-Oriented Language for Heterogeneous Computer Networks. The Journal of Supercomputing 14, 153–169 (1999). https://doi.org/10.1023/A:1008110925248

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