Compiler and Runtime Techniques to Identify and Optimize Atomic Blocks in Parallel Programs

Name: Compiler and Runtime Techniques to Identify and Optimize Atomic Blocks in Parallel Programs
Brand: Cuvillier Verlag
SKU: 9783954048403
Price: 175.25 RON
Availability: InStock

Autor: Stefan Kempf

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Legare: Carte broșată

Editura: Cuvillier Verlag

Disponibilitate: În depozitul extern

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Atomic blocks are a programming language construct that marks sections of code that multiple threads...

Informații despre carte

Autor

Stefan Kempf

Limbă

germană

Legare

Carte - Carte broșată

Publicat

2014

Pagini

184

EAN

9783954048403

ISBN

395404840X

Enbook ID

12828675

Editura

Cuvillier Verlag

Greutate

246

Dimensiuni

148 x 210 x 10

Descriere completă

Atomic blocks are a programming language construct that marks sections of code that multiple threads may not execute concurrently. The implementation of the mutual exclusion is left to the compiler or the runtime system. To avoid race conditions however, developers are still responsible to detect all places in the code where atomic blocks are needed. It is of course also important that mutual exclusion is implemented efficiently.This thesis therefore pursues two goals. First, we develop a data dependence analysis that identifies potential critical sections in a parallel program, presents them to the programmer, and then adds atomic blocks to the code. Second, we enhance existing techniques - software transactional memory (STM) and lock inference - to implement atomic blocks. Our approach combines the advantages of STM and lock inference, which allows atomic blocks to be implemented more efficiently.The evaluation shows that our approach identifies atomic blocks that closely match those atomic blocks that an expert would add to the code. Compared to a pure STM or lock inference implementation, our combined approach to implement atomic blocks speeds up execution times by a factor between 1.1 and 6.3.

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Compiler and Runtime Techniques to Identify and Optimize Atomic Blocks in Parallel Programs

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