stOMP: A Specializing Threads Library for OpenMP

stOMP: A Specializing Threads Library for OpenMP

Runtime Compilation and Optimizations for OpenMP

LAP Lambert Academic Publishing ( 16.06.2009 )

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While runtime compilation has in practice been largely restricted to programming languages that execute on virtual machines, such as Java and C#, parallel OpenMP programs show many promising traits for efficient and effective runtime optimization. This work introduces stOMP: a specializing thread-library for OpenMP. Using a combined compile-time and run-time system, stOMP specializes OpenMP parallel regions for frequently-seen values and the configuration of the runtime system. We present a detailed description of the system, focusing on the optimizations implemented and techniques to minimize the runtime overhead: a context-based hot-spot detector; a pruning mechanism that eliminates poorly behaved variables as specialization targets; several runtime optimization policies; and several code optimizations and transformations that further allow performance improvement. We evaluate our work on the SPEC OMP benchmark suite, showing a performance increase of up to 7.8%.

Kitap detayları:

ISBN-13:

978-3-8383-0323-9

ISBN-10:

3838303237

EAN:

9783838303239

Kitabın dili:

English

Yazar:

Mihai Burcea

Sayfa sayısı:

96

Yayın tarihi:

16.06.2009

Kategori:

Programlama dilleri