Title

An Evaluation of Java as a High Performance Computing Language through Jpetra: A Java Library for Distributed Memory Parallel Linear Algebra Computations

Document Type

Thesis

Publication Date

2005

Advisor

Michael Heroux, Computer Science

Abstract

The Java programming language and Sun Microsystems' Java Virtual Machine (JVM) provide a cross platform runtime environment that simplifies application development and deployment when compared to traditional natively compiled languages such as C++. Jpetra is a pure Java library for distributed memory parallel linear algebra computations that can be used to test the usefulness of Java as a high performance computing (HPC) language. Through my test results I will show that although Java does provide a promising platform for HPC computing, the way that Sun Microsystems' JVM is implemented makes optimizing Jpetra in a parallel environment challenging due to memory management issues. I will then provide recommendations for how I believe Jpetra should be modified to help alleviate the problems that hurt the performance of Jpetra caused by Sun Microsystems’ JVM’s memory management.

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