Hierarchical memory with block transfer

  • Authors:
  • Alok Aggarwal;Ashok K. Chandra;Marc Snir

  • Affiliations:
  • -;-;-

  • Venue:
  • SFCS '87 Proceedings of the 28th Annual Symposium on Foundations of Computer Science
  • Year:
  • 1987

Quantified Score

Hi-index 0.00

Visualization

Abstract

In this paper we introduce a model of Hierarchical Memory with Block Transfer (BT for short). It is like a random access machine, except that access to location x takes time f(x), and a block of consecutive locations can be copied from memory to memory, taking one unit of time per element after the initial access time. We first study the model with f(x) = xα for 0 1. Finally, we study the model f(x) = log x and obtain optimal bounds of θ(n log*n) for simple problems mentioned above and of θ(n log n) for sorting, computing an FFT graph, and for some permutations.