Efficient Support for Complex Numbers in Java

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Efficient Support for Complex Numbers in Java (1999)

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by Peng Wu , Sam Midkiff , José Moreira , Manish Gupta

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@MISC{Wu99efficientsupport,
    author = {Peng Wu and Sam Midkiff and José Moreira and Manish Gupta},
    title = {Efficient Support for Complex Numbers in Java},
    year = {1999}
}

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Abstract

One glaring weakness of Java for numerical programming is its lack of support for complex numbers. Simply creating a Complex number class leads to poor performance relative to Fortran. We show in this paper, however, that the combination of such a Complex class and a compiler that understands its semantics does indeed lead to Fortran-like performance. This performance gain is achieved while leaving the Java language completely unchanged and maintaining full compatibility with existing Java Virtual Machines. We quantify the effectiveness of our approach through experiments with linear algebra, electromagnetics, and computational fluid-dynamics kernels. 1 Introduction The Java Grande Forum has identified several critical issues related to the role of Java (TM)1 in numerical computing [14]. One of the key requirements is that Java must support efficient operations on complex numbers. Complex arithmetic and access to elements of complex arrays must be as efficient as the manipulation o...

Keyphrases

complex number efficient support java language numerical programming full compatibility complex class fortran-like performance complex array efficient operation linear algebra poor performance relative computational fluid-dynamics kernel performance gain several critical issue java virtual machine key requirement java grande forum complex number class

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