JESSICA: Java-enabled single-system-image computing architecture

doi:10.1006/jpdc.2000.1650

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JESSICA: Java-enabled single-system-image computing architecture

2000-10-01

Ma, MJM *

Francis C. M. Lau

DOI：10.1006/jpdc.2000.1650

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Abstract

En 中文

JESSICA stands for Java-enabled single-system-image computing architecture, a middleware that runs on top of the standard UNIX operating system to support parallel execution of multithreaded Java applications in a cluster of computers. JESSICA hides the physical boundaries between machines and makes the cluster appear as a single computer to applications a single system image. JESSICA supports preemptive thread migration, which allows a thread to freely move between machines during its execution, and global object sharing through the help of a distributed shared-memory subsystem. JESSICA implements location-transparency through a message-redirection mechanism. The result is a parallel execution environment where threads are automatically redistributed across the cluster for achieving the maximal possible parallelism. A JESSICA prototype that runs on a Linux cluster has been implemented and considerable speedups have been obtained for all the experimental applications tested. (C) 2000 Academic Press.

Keywords:

cluster computing

single system image

dynamic load balancing

thread migration

Java virtual machine

JESSICA

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