On the use of Java to make Software Tools Accessible on the Web (original) (raw)
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Java offers the basic infrastructure needed to integrate computers connected to the Internet into a seamless parallel computational resource: a flexible, easily-installed infrastructure for running coarse grained parallel applications on numerous, anonymous machines. Ease of participation is seen as a key property for such a resource to realize the vision of a multiprocessing environment comprising thousands of computers. We present Javelin, a Java-based infrastructure for global computing. The system is based on Internet software technology that is essentially ubiquitous: Web technology. Its architecture and implementation require participants to have access only to a Java-enabled Web browser. The security constraints implied by this, the resulting architecture, and current implementation are presented. The Javelin architecture is intended to be a substrate on which various programming models may be implemented. Several such models are presented: A Linda Tuple Space, an SPMD programming model with barriers, as well as support for message passing. Experimental results are given in the form of micro-benchmarks and a Mersenne Prime application that runs on a heterogeneous network of several parallel machines, workstations, and PCs.
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Java offers the basic infrastructure needed to integrate computers connected to the Internet into a seamless parallel computational resource: a flexible, easily-installed infrastructure for running coarsegrained parallel applications on numerous, anonymous machines. Ease of participation is seen as a key property for such a resource to realize the vision of a multiprocessing environment comprising thousands of computers. We present Javelin, a Java-based infrastructure for global computing. The system is based on Internet software technology that is essentially ubiquitous: Web technology. Its architecture and implementation require participants to have access only to a Java-enabled Web browser. The security constraints implied by this, the resulting architecture, and current implementation are presented. The Javelin architecture is intended to be a substrate on which various programming models may be implemented. Several such models are presented: A Linda Tuple Space, an SPMD programming model with barriers, as well as support for message passing. Experimental results are given in the form of micro-benchmarks and a Mersenne Prime application that runs on a heterogeneous network of several parallel machines, workstations, and PCs.
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The World Wide Web is now lhe de/acto environment for providing (electronic) informalion 10 the worldwide user community. With the availability of programming languages like Java, Web browsers now can handle documents with programs embedded in them. This new functionality presents opportunities for scientific computing on the World Wide Web while its realization requires addressing several new research issues including user inteiface alld prorocol design, legacy software encapsulation, security, software delivery in directly usable form, alld networked compll1ationo{ servers. In this paper we address these issues in the context ofPDE (panial Differential Equation) network computing supported by the well known problem solving environment (PSE) IIELLPACK and its networked, Web accessible, counterpart which is referred throughout as the Net /IELLPACK PSE. Using Net IIELLPACK one can solve complex PDE problems using any Web browser thal supports Java applets. The design of Net IIELLPACK...