| Summary: | Comparing parallel or distributed programming systems is, due to the variety of available flavors of paradigms, methods and solutions, not a task to be taken lightly. The Cowichan problem set aims to provide a collection of non-trivial problems of which the implementation can greatly help in assessing the usability of a particular system. The skyline matrix problem of this set can be used to test the ease with which a system is able to handle irregular matrix structures. This paper reports the development, experiences and results of the implementation of this problem using the Orca parallel programming language. 1 1 Introduction Parallelism, if it can be exploited, promises to offer much higher performance at a fraction of the cost compared to traditional sequential systems. If it can be exploited that is. The problem in many cases is that creating parallel programs is not at all a trivial task. Programming parallel systems usually implies more things to keep track of by the p.
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