Abstract: "Stream-based concurrent object-oriented programming laguages (SCOOL) to date have been typically implemented in concurrent logic programming languages (CLL). However, CLLs have two drawbacks when used to implement message streams on parallel machines with distributed memory. One is t...

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Bibliographische Detailangaben

Format:	Buch
Sprache:	English
Veröffentlicht:	Tokyo, Japan 1991
Schriftenreihe:	Shin-Sedai-Konpyūta-Gijutsu-Kaihatsu-Kikō <Tōkyō>: ICOT technical memorandum 1125
Schlagworte:	Concurrent programming Distributed parameter systems Logic programming
Zusammenfassung:	Abstract: "Stream-based concurrent object-oriented programming laguages (SCOOL) to date have been typically implemented in concurrent logic programming languages (CLL). However, CLLs have two drawbacks when used to implement message streams on parallel machines with distributed memory. One is the lack of restriction on the number of readers of a shared variable. The other is a cascaded buffer representation of streams. These require many interprocessor communications, which can be avoided by language systems designed specially for SCOOLs. The authors have been developing such a language system named A'UM-90 for A'UM, a SCOOL with highly abstract stream communication This paper presents the optimized method used in A'UM-90 to implement streams on distributed memory. A stream is represented by a message queue, which migrates to its reader's processor after the processor becomes known. The improvement from using this method is estimated in terms of the number of required interprocessor communication, and is demonstrated by the result of a preliminary evaluation.
Beschreibung:	16 S.