NDLI: Sensitivity analysis of knapsack-based task scheduling on the grid

Content Provider	ACM Digital Library
Author	Vanderster, Daniel C. Dimopoulos, Nikitas J.
Abstract	The knapsack-based task scheduler has been previously shown to provide Quality of Service to malleable tasks on computational grids. In this study, we measure the sensitivity of the knapsack-derived schedules to variations in the prescribed allocation policies and their corresponding utility functions. In particular, we explore the effects of varying the strengths of an external user-specified monetary metric, an intrinsic estimated response time mediated by nearness to completion time metric, and of varying the shape of a sigmoidal normalizing utility function. The results of our analyses show that the knapsack strategy results in schedules that are consistent with the defined allocation policies. We conclude by indicating the recommended metric weights, that is, those that produce desirable schedule characteristics.
Starting Page	317
Ending Page	323
Page Count	7
File Format	PDF
ISBN	1595932828
DOI	10.1145/1183401.1183446
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2006-06-28
Publisher Place	New York
Access Restriction	Subscribed
Content Type	Text
Resource Type	Article

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Sensitivity analysis of knapsack-based task scheduling on the grid