Title
An efficient parallel strategy for high-cost prefix operation
Abstract
The prefix computation strategy is a fundamental technique used to solve many problems in computer science such as sorting, clustering, and computer vision. A large number of parallel algorithms have been introduced that are based on a variety of high-performance systems. However, these algorithms do not consider the cost of the prefix computation operation. In this paper, we design a novel strategy for prefix computation to reduce the running time for high-cost operations such as multiplication. The proposed algorithm is based on (1) reducing the size of the partition and (2) keeping a fixed-size partition during all the steps of the computation. Experiments on a multicore system for different array sizes and number sizes demonstrate that the proposed parallel algorithm reduces the running time of the best-known optimal parallel algorithm in the average range of 62.7–79.6%. Moreover, the proposed algorithm has high speedup and is more scalable than those in previous works.
Year
DOI
Venue
2021
10.1007/s11227-020-03473-x
The Journal of Supercomputing
Keywords
DocType
Volume
Prefix computation, Parallel algorithm, High-cost operation, Multicore
Journal
77
Issue
ISSN
Citations 
6
0920-8542
0
PageRank 
References 
Authors
0.34
14
2
Name
Order
Citations
PageRank
Hazem M. Bahig1247.61
Khaled A. Fathy200.34