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ASME Press Select Proceedings

International Conference on Mechanical Engineering and Technology (ICMET-London 2011)

Editor
Garry Lee
Garry Lee
Information Engineering Research Institute
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ISBN:
9780791859896
No. of Pages:
906
Publisher:
ASME Press
Publication date:
2011

The continuous improving of semiconductor technology makes the ubiquity of multicore system. In order to understand the potential performance limitation of various multicore systems, we propose a performance metric, speedup resilience, to evaluate the potential possibility performance enhancement of a multicore system. Instead of theoretical metrics provided by vendors, this study evaluates five variant multicore systems by using four benchmarks with different computing characteristics. These benchmarks are parallelize by Pthread and OpenMP paradigms, then compiled by native compilers of the target machine with highest optimizing level. The speedup resilience of these architectures are provided and discussed later. The proposed results also illustrate that branch density and memory contention will largely degrade the performance. Wish this work will be the preliminary step of who want to explore the optimizing space of the software on multicore systems.

Abstract
Keywords
Introduction
Overview of Parallel Programming Paradigms
Multicore Architectures
Experimental Results
Comparison of Execution Time of PI Calculation
Conclusions
Acknowledgment
References
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