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Author Noel, F. ♦ Hornof, L. ♦ Consel, C. ♦ Lawall, J.L.
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©1998
Language English
Subject Domain (in DDC) Computer science, information & general works ♦ Computer programming, programs & data
Subject Keyword Runtime ♦ Graphics ♦ Operating systems ♦ Program processors ♦ Contracts ♦ Telecommunication computing ♦ Information science ♦ Computer science ♦ Performance evaluation
Abstract Specializing programs with respect to run time values has been shown to drastically improve code performance on realistic programs ranging from operating systems to graphics. Recently, various approaches to specializing code at run time have been proposed. However, these approaches still suffer from shortcomings that limit their applicability: they are manual, too expensive, or require programs to be written in a dedicated language. We solve these problems by introducing new techniques to implement run time specialization. The key to our approach is the use of code templates. Templates are automatically generated from ordinary programs and are optimized before run time, allowing high quality code to be quickly generated at run time. Experimental results obtained on scientific and graphics code indicate that our approach is highly effective. Little run time overhead is introduced, since code generation primarily consists of copying instructions. Run time specialized programs run up to 10 times faster, and are nearly as fast as fully optimized programs (80% on average). The combination of low run time overhead and high code quality enables specialization to be amortized in as few as 3 runs. Although this approach is highly effective, its implementation is relatively simple since it exploits existing partial evaluation and compiler technologies.
Description Author affiliation: IRISA, Rennes, France (Noel, F.)
ISBN 0818684542
ISSN 10748970
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research ♦ Reading
Education Level UG and PG
Learning Resource Type Article
Publisher Date 1998-05-16
Publisher Place USA
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Size (in Bytes) 291.22 kB
Page Count 11
Starting Page 132
Ending Page 142

Source: IEEE Xplore Digital Library