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Parallel Computing Hits the Power Wall

Part of the SpringerBriefs in Computer Science Book Series

DOI: 10.1007/978-3-030-28719-1

ISBN: 978-3-030-28718-4

Publisher: Springer International Publishing - Springer Journals

Nov 6, 2019

Available

Runtime Adaptability: The Key for Improving Parallel Applications

Lorenzon, Arthur Francisco; Schneider Beck Filho, Antonio Carlos

Pages: 1 –8

[With the increasing complexity of parallel applications, which require more computing power, energy consumption has become an important issue. The power consumption of high-performance computing (HPC) systems is expected to significantly grow (up to 100 MW) in the next years (Dutot et al.,...
Available

Fundamental Concepts

Lorenzon, Arthur Francisco; Schneider Beck Filho, Antonio Carlos

Pages: 9 –16

[This chapter presents the fundamental concepts to understand the remaining of this book. Therefore, in Sect. 2.1, we first discuss the concepts of parallel programming, as well as the communication models and parallel programming interfaces widely used nowadays. Also, this section highlights the...
Available

The Impact of Parallel Programming Interfaces on Energy

Lorenzon, Arthur Francisco; Schneider Beck Filho, Antonio Carlos

Pages: 17 –40

[Thread-level parallelism exploitation is being widely used to make the best use of hardware resources and improve performance. However, as discussed in Chap. 1, energy consumption has become an important issue. Therefore, the objective when designing parallel applications is not to simply...
Available

Tuning Parallel Applications

Lorenzon, Arthur Francisco; Schneider Beck Filho, Antonio Carlos

Pages: 41 –54

[This chapter presents a comprehensive study of the techniques used to improve the performance, energy, or EDP of parallel applications. They are discussed considering the following: Adaptability: when the adaptation of the number of threads and processor operating frequency happens and whether...
Available

Case Study: DCT with Aurora

Lorenzon, Arthur Francisco; Schneider Beck Filho, Antonio Carlos

Pages: 55 –78

[This chapter presents Aurora as a case study to optimize the execution of parallel applications. Aurora is an OpenMP framework that is completely transparent to both the designer and end user. Without any code transformation or recompilation, it is capable of automatically finding, at runtime...
Available

Conclusions

Lorenzon, Arthur Francisco; Schneider Beck Filho, Antonio Carlos

Pages: 79 –80

[Efficiently exploiting thread-level parallelism has been challenging for software developers. As many parallel applications do not scale with the number of cores, not always using the maximum number of available cores running at the highest possible operating frequency will deliver the best...

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