OPTIMAL VLSI SORTING WITH REDUCED NUMBER OF PROCESSORS
Academic Article
Overview
Research
Identity
Additional Document Info
Other
View All
Overview
abstract
This paper presents a new parallel architecture having p processors and N = n2 memory locations, each consisting of 2s bits. The proposed organization can sort N s -bit numbers, where s = O((1+ ) logN), e > 0, in time t = O for p in the range 1 to Nlog N. This result is optimal in the sense that the product of the number of processors and the parallel sorting time is equal to the sequential complexity of sorting. Also, the constant factors involved in the algorithm complexity are relatively small. When p = NlogN, the time required for sorting N numbers on the proposed organization is O(N), which is the same time required by a two-dimensional mesh array, a mesh of trees organization, or a pyramid computer, all with O(N) processors, to sort N numbers. 1991 IEEE