Cart (Loading....) | Create Account
Close category search window

A hierarchical approach to parallel multiquery scheduling

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
Wolf, J.L. ; Res. Div., IBM Thomas J. Watson Res. Center, Yorktown Heights, NY, USA ; Turek, J. ; Ming-Syan Chen ; Yu, P.S.

There has been a good deal of progress made recently toward the efficient parallelization of individual phases of single queries in multiprocessor database systems. In this paper we devise and experimentally evaluate a number of scheduling algorithms designed to handle multiple parallel queries. (Scheduling in this context implies the determination of both processor allotments and temporal processor assignments to individual queries and query phases.) One of these algorithms performs the best in our experiments. This algorithm is hierarchical in nature: In the first phase, a good quality precedence based schedule is created for each individual query and each possible number of processors. This component employs dynamic programming. In the second phase, the results of the first phase are used to create an overall schedule of the full set of queries. This component is based on previously published work on nonprecedence-based malleable scheduling. Even though the problem we are considering is NP-hard in the strong sense, the multiple query schedules generated by our hierarchical algorithm are seen experimentally to achieve high quality results

Published in:

Parallel and Distributed Systems, IEEE Transactions on  (Volume:6 ,  Issue: 6 )

Date of Publication:

Jun 1995

Need Help?

IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.