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Dynamic task scheduling and allocation for 3D torus multicomputer systems

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4 Author(s)
Hee Yong Youn ; Dept. of Comput. Sci. & Eng., Texas Univ., Arlington, TX, USA ; Hyunseung Choo ; Seong-Moo Yoo ; B. Shirazi

Multicomputer systems achieve high performance by utilizing a number of computing nodes. Multidimensional meshes have become popular as multicomputer architectures due to their simplicity and efficiency. In this paper we propose an efficient processor allocation scheme for 3D torus based on first-fit approach. The scheme minimizes the allocation time by effectively manipulating the 3D information as 2D information using CST (Coverage Status Table). Comprehensive computer simulation reveals that the allocation time of the proposed scheme is always smaller than the earlier scheme based on best-fit approach, while allowing comparable processor utilization. The difference gets more significant as the input load increases. To investigate the performance of the proposed scheme with different scheduling environment, non-FCFS scheduling policy along with the typical FCFS policy is also studied

Published in:

Parallel Processing, 1996. Vol.3. Software., Proceedings of the 1996 International Conference on  (Volume:3 )

Date of Conference:

12-16 Aug 1996