occam for multi-processor DEC alphas

Welch, Peter H. and Poole, Michael D. (1997) occam for multi-processor DEC alphas. In: Bakkers, A.W.P., ed. Parallel Programming and Java. Concurrent Systems Engineering Series, 50 . I O S Press, Amsterdam, pp. 152-174. ISBN 90-5199-336-6. (The full text of this publication is not available from this repository)

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Abstract

A multi-processor implementation of occam2.1 for interconnected DEC Alpha processors has been derived from the Kent Retargetable occam Compiler. Each Alpha processor is supported over a PCI bus by a T425 transputer, whose links complete the communications fabric. This paper reports on the software mechanisms for supporting these platforms from occam so that they appear just like any transputer system - a collection of processing nodes connected by channels placed on links. Advantage was taken of a proprietary multi-threading kernel, supplied as part of 3L Parallel C/AXP, to support parallel inter-node communication. occam multiprocessing is supported by the KRoC kernel running within one of the 3L threads. The performance of generated code and networked systems has been benchmarked, with particular care being taken to measure tile interaction overheads between the Alpha and its communication fabric. An image analysis program was also used in the benchmarking as an example of a real multi-processor application.

Item Type: Book section
Subjects: T Technology > T Technology (General)
Divisions: Faculties > Science Technology and Medical Studies > School of Computing
Depositing User: T.J. Sango
Date Deposited: 29 Apr 2009 13:58
Last Modified: 23 Jun 2014 14:50
Resource URI: http://kar.kent.ac.uk/id/eprint/18034 (The current URI for this page, for reference purposes)
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