11944

On the Parallelization of Integer Polynomial Multiplication

Farnam Mansouri
The University of Western Ontario, London, Ontario, Canada
The University of Western Ontario

@article{mansouri2014parallelization,

   title={ON THE PARALLELIZATION OF INTEGER POLYNOMIAL MULTIPLICATION},

   author={Mansouri, Farnam},

   year={2014}

}

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With the advent of hardware accelerator technologies, multi-core processors and GPUs, much effort for taking advantage of those architectures by designing parallel algorithms has been made. To achieve this goal, one needs to consider both algebraic complexity and parallelism, plus making efficient use of memory traffic, cache, and reducing overheads in the implementations. Polynomial multiplication is at the core of many algorithms in symbolic computation such as real root isolation which will be our mainly application for now. In this thesis, we first, investigate the multiplication of dense univariate polynomials with integer coefficients targeting multi-core processors. Some of the proposed methods are based on well-known serial classical algorithms, whereas a novel algorithm is designed to make efficient use of the targeted hardware. Experimentation confirms our theoretical analysis. Second, we report on the first the implementation of subproduct tree techniques on many-core architectures. These techniques are basically another application of polynomial multiplication, but over a prime field. This technique is used in multi-point evaluation and interpolation of polynomials with coefficients over a prime field.
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