University of Illinois Urbana-Champaign

The dependence analysis and synchronization of parallel programs

Midkiff, Samuel Pratt

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https://hdl.handle.net/2142/19333

Description

Title
The dependence analysis and synchronization of parallel programs
Author(s)
Midkiff, Samuel Pratt
Issue Date
1992
Doctoral Committee Chair(s)
Padua, David A.
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
  • The optimization of programs with explicit--i.e. user specified--parallelism requires the computation of the data dependence relation if optimizations performed by the compiler are to preserve sequential consistency. Shasha and Snir investigated the problem for straight-line code with data accesses performed on scalars. We extend their results to programs with sequential loops and cobegin or doall loop parallelism and data accesses performed on arrays. The array subscript information is used to increase the accuracy of the test in a way analogous to the data dependence tests for sequential programs.
  • Once data dependences have been identified synchronization can be used to enforce the orderings specified by the data dependence. The automatic generation of synchronization, and the optimization of synchronization, by a compiler is investigated. Experimental results comparing the effectiveness of different optimization techniques are presented.
Type of Resource
text
Permalink
http://hdl.handle.net/2142/19333
Copyright and License Information
Copyright 1992 Midkiff, Samuel Pratt

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Graduate Dissertations and Theses at Illinois PRIMARY
Graduate Theses and Dissertations at Illinois
Dissertations and Theses - Computer Science
Dissertations and Theses from the Dept. of Computer Science