Title
Energy Efficiency Of Parallel Multicore Programs
Abstract
The increasing energy consumption of large-scale high performance resources raises technical and economical concerns. A reduction of consumed energy in multicore systems is possible to some extent with an optimized usage of computing and memory resources that is tailored to specific HPC applications. The essential step towards more sustainable consumption of energy is its reliable measurements for each component of the system and selection of optimally configured resources for specific applications. This paper briefly surveys the current approaches for measuring and profiling power consumption in large scale systems. Then, a practical case study of a real-time power measurement of multicore computing system is presented on two real HPC applications: maximum clique algorithm and numerical weather prediction model. We assume that the computing resources are allocated in a HPC cloud on a pay-per-use basis. The measurements demonstrate that the minimal energy is consumed when all available cores (up to the scaling limit for a particular application) are used on their maximal frequencies and with threads binded to the cores.
Year
Venue
Keywords
2015
SCALABLE COMPUTING-PRACTICE AND EXPERIENCE
Energy efficiency, high-performance, maximum clique, numerical weather prediction
Field
DocType
Volume
Clique,Efficient energy use,Profiling (computer programming),Computer science,Sustainable consumption,Thread (computing),Multi-core processor,Energy consumption,Distributed computing,Cloud computing
Journal
16
Issue
ISSN
Citations 
4
1895-1767
1
PageRank 
References 
Authors
0.39
15
5
Name
Order
Citations
PageRank
Davor Davidovic1548.53
Matjaž Depolli2508.70
Tomislav Lipic3254.98
Karolj Skala46412.13
Roman Trobec518038.90