Systolic designs for Aitken's root finding method

  • Authors:
  • G. M. Megson;O. Brudaru;D. Comish

  • Affiliations:
  • Computing Laboratory, University of Newcastle-Upon-Tyne, Claremont Tower, Claremont Rd, Newcastle-Upon-Tyne NE1 7RU, UK;Universitatea `Al.l. Cuza Iasi Seminarul Matematic `A. Myller, 6600- Iasi, Romania;Computing Laboratory, University of Newcastle-Upon-Tyne, Claremont Tower, Claremont Rd, Newcastle-Upon-Tyne NE1 7RU, UK

  • Venue:
  • Parallel Computing
  • Year:
  • 1992

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Abstract

1-D and 2-D systolic arrays for computing the roots of a transcendental function via table generating methods are considered. In particular we show how to derive systolic arrays systematically for a problem with an unbounded computation domain. A non-linear scheduling function is introduced to partition the domain into finite-sized blocks and normal synthesis techniques used to derive block arrays. A m x n block can be computed in at most 3n + m - 1 steps using O(n) cells in a 1-D array and O(mn + n^2) cells in a 2-D array. Different problem instances can be pipelined in the latter and the whole table can be produced by using the arrays iteratively.