Fifteen years after DSC and WLSS2 what parallel computations I do today: invited lecture at PASCO 2010

  • Authors:
  • Erich L. Kaltofen

  • Affiliations:
  • North Carolina State University, Raleigh, North Carolina

  • Venue:
  • Proceedings of the 4th International Workshop on Parallel and Symbolic Computation
  • Year:
  • 2010

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Abstract

A second wave of parallel and distributed computing research is rolling in. Today's multicore/multiprocessor computers facilitate everyone's parallel execution. In the mid 1990s, manufactures of expensive main-frame parallel computers faltered and computer science focused on the Internet and the computing grid. After a ten year hiatus, the Parallel Symbolic Computation Conference (PASCO) is awakening with new vigor. I shall look back on the highlights of my own research on theoretical and practical aspects of parallel and distributed symbolic computation, and forward to what is to come by example of several current projects. An important technique in symbolic computation is the evaluation/interpolation paradigm, and multivariate sparse polynomial parallel interpolation constitutes a keystone operation, for which we present a new algorithm. Several embarrassingly parallel searches for special polynomials and exact sum-of-squares certificates have exposed issues in even today's multiprocessor architectures. Solutions are in both software and hardware. Finally, we propose the paradigm of interactive symbolic supercomputing, a symbolic computation environment analog of the STAR-P Matlab platform.