@InProceedings{Grimsdale88, title = "{CDL} -- {A} distribution language for {HELIOS}", author= "Grimsdale, C. H. R.", editor= "Askew, Charlie", pages = "7--12", booktitle= "{OUG}-9: {O}ccam and the {T}ransputer -- {R}esearch and {A}pplications", isbn= "90 5199 010 3", year= "1988", month= "sep", abstract= "Helios is an Operating System designed to exploit highly distributed systems. The central goal of such a distributed system, is not only to provide increased fault tolerance, but also increased performance. This necessitates adequate support for parallelism at the application level. It is proposed that instead of extending an existing language, or producing a completely new language, parallelism can be defined at the distribution phase. A high level Component Distribution Language has been designed, which allows simple sequential components to be combined by simple parallel constructors to form more complex parallel structures. The implementation language is irrelevant thus providing consistent support for standard sequential languages in a distributed environment." }