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S. Shende, and A. D. Malony, "Performance Tools for Parallel Java Environments," Proc. Second Workshop on Java for High Performance Computing, ICS 2000, May 2000.

Keywords: parallel, mpiJava, TAU, performance profiling, tracing, MPI

Parallel Java environments present challenging problems for performance tools because of Java's rich language system and its multi-level execution platform combined with the integration of native-code application libraries and parallel runtime software. In addition to the desire to provide robust performance measurement and analysis capabilities for the Java language itself, the coupling of different software execution contexts under a uniform performance model needs careful consideration of how events of interest are observed and how cross-context parallel execution information is linked. This paper relates our experience in extending the TAU performance system to a parallel Java environment based on mpiJava. We describe the instrumentation model used, how performance measurements are made, and the overhead incurred. A parallel Java application simulating the game of life is used to show the performance system's capabilities.


Modified: Mon Mar 12 16:21:08 2001
Created: Mon Apr 24 14:38:42 2000

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