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Distributed-OMAR:

By Nichael Cramer

Abstract

We describe our experience in converting OMAR, a large human-performance modeling simulation environment, originally written completely in Lisp, into Distributed OMAR [D-OMAR] a distributed, hybrid Lisp/Java system. In the resulting system: • The kernel simulation system (Core-OMAR) remains written purely in Common Lisp, and as such is able to take full advantage of the relevant features of Lisp. • Other modules of the system (e.g. the User Interface) are written in languages more appropriate to the requirements of those modules (typically Java). • The D-OMAR system presents itself to an external system as a fully functioning component in that system's embedded target language (e.g. JAVA or C++) and as such is able to take advantage of features in that language (for example, support for middle-ware or other mechanisms for inter-component communication). • The underlying technique (built on an internal socket-based, inter-process, message-passing serialization stream) is applicable to a broad range of Lisp-based systems. The result is a system that can be run nearly transparently in a range of external languages, with an assortment of middle-ware choices and on a variety of hardware platforms. 1

Year: 2008
OAI identifier: oai:CiteSeerX.psu:10.1.1.134.1409
Provided by: CiteSeerX
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