Abstract
One of the most interesting challenges to the high-performance community is to exploit the existing computing resources for executing long-running number-crunching applications. Several important issues have to be addressed, like portability, robustness, security, heterogeneity, load-balancing and fault-tolerance. Java is an emerging language that is receiving an extraordinary enthusiasm and acceptance from several fields of programming. Interestingly, it presents some nice characteristics that partially solve some of those problems. This paper briefly describes JET, a parallel library implemented on Java that supports the execution of parallel applications over the Web. It is oriented to master/worker applications which present a coarse-grain task distribution. The library provides a high-level programming interface, support for fault-tolerance and some schemes to mask the latency of the communication. It can be used to execute massively distributed applications using several computers connected to the Internet. © 1997 John Wiley & Sons, Ltd.
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