A novel scheme for the parallel computation of SVDs

  • Authors:
  • Sanguthevar Rajasekaran;Mingjun Song

  • Affiliations:
  • Computer Science and Engineering, University of Connecticut, Storrs, CT;Computer Science and Engineering, University of Connecticut, Storrs, CT

  • Venue:
  • HPCC'06 Proceedings of the Second international conference on High Performance Computing and Communications
  • Year:
  • 2006

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Abstract

The Singular Value Decomposition (SVD) is a vital problem that finds a place in numerous application domains in science and engineering. As an example, SVDs are used in processing voluminous data sets. Many sequential and parallel algorithms have been proposed to compute SVDs. The best known sequential algorithms take cubic time. This amount of time may not be acceptable especially when the data size is large. Thus parallel algorithms are desirable. In this paper, we present a novel technique for the parallel computation of SVDs. This technique yields impressive speedups. We discuss implementation of our technique on parallel models of computing such as the mesh and the PRAM. We also present an experimental evaluation of our technique.