Energy-efficient localised rollback via data flow analysis and frequency scaling
Energy-efficient localised rollback via data flow analysis and frequency scaling
复制标题
通过数据流分析和频率缩放实现节能的局部回滚
DOI:
10.1145/3236367.3236379
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发表时间:
2018
期刊:
影响因子:
--
通讯作者:
Dichev K
中科院分区:
文献类型:
--
作者:
Dichev K
Exascale systems will suffer failures hourly. HPC programmers rely mostly on application-level checkpoint and a global rollback to recover. In recent years, techniques reducing the number of rolling back processes have been implemented via message logging. However, the log-based approaches have weaknesses, such as being dependent on complex modifications within an MPI implementation, and the fact that a full restart may be required in the general case. To address the limitations of all log-based mechanisms, we return to checkpoint-only mechanisms, but advocate data flow rollback (DFR), a fundamentally different approach relying on analysis of the data flow of iterative codes, and the well-known concept of data flow graphs. We demonstrate the benefits of DFR for an MPI stencil code by localising rollback, and then reduce energy consumption by 10-12% on idling nodes via frequency scaling. We also provide large-scale estimates for the energy savings of DFR compared to global rollback, which for stencil codes increase as n2 for a process count n.
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DOI:
10.1177/1094342010391989
发表时间:
2011-02-01
影响因子:
3.1
作者:
Dongarra, Jack;Beckman, Pete;Yelick, Kathy
通讯作者:
Yelick, Kathy
DOI:
--
发表时间:
2008
期刊:
Modelling, Computation and Optimization in Information Systems and Management Sciences
影响因子:
--
作者:
Xavier Besseron;T. Gautier
通讯作者:
T. Gautier
DOI:
--
发表时间:
2013
期刊:
PMBS@SC
影响因子:
--
作者:
Scott Levy;Bryan Topp;Kurt B. Ferreira;D. Arnold;T. Hoefler;Patrick M. Widener
通讯作者:
Patrick M. Widener
DOI:
--
发表时间:
2017
期刊:
IEEE International Parallel and Distributed Processing Symposium
影响因子:
--
作者:
Gokcen Kestor;S. Krishnamoorthy;Wenjing Ma
通讯作者:
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DOI:
--
发表时间:
2013
期刊:
The international journal of high performance computing applications
影响因子:
--
作者:
Wesley Bland;A. Bouteiller;T. Hérault;G. Bosilca;J. Dongarra
通讯作者:
J. Dongarra