This item is only available for download by members of the University of Illinois community. Students, faculty, and staff at the U of I may log in with your NetID and password to view the item. If you are trying to access an Illinois-restricted dissertation or thesis, you can request a copy through your library's Inter-Library Loan office or purchase a copy directly from ProQuest.
Permalink
https://hdl.handle.net/2142/81969
Description
Title
An Environment for Imprecise Computations
Author(s)
Hull, David Lawrence
Issue Date
2000
Doctoral Committee Chair(s)
Liu, Jane W.S.
Department of Study
Computer Science
Discipline
Computer Science
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Computer Science
Language
eng
Abstract
This thesis is concerned with the problem of providing operating system support to flexible real-time applications with end-to-end deadlines and of integrating checkpointing and rollback recovery with flexible applications as a means to increase the availability and dependability of real-time systems. This thesis makes the following contributions: (1) It describes a model for representing flexible real-time applications as a composition of components tasks, and characterizes how quality of service of a task depends on both the task's input quality and resource usage. (2) It introduces an architecture, called the Imprecise Computation Environment, for executing flexible applications based on this flexible application model. (3) It describes an efficient algorithm for quality of service management in flexible applications. This algorithm allocates the processor time available for an application to each task in the application to maximize the output quality of the application as a whole.
Use this login method if you
don't
have an
@illinois.edu
email address.
(Oops, I do have one)
IDEALS migrated to a new platform on June 23, 2022. If you created
your account prior to this date, you will have to reset your password
using the forgot-password link below.
