Performance analysis of asynchronous parallel Jacobi
Performance analysis of asynchronous parallel Jacobi
复制标题
异步并行雅可比性能分析
DOI:
10.1007/s11075-017-0342-9
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发表时间:
2017
影响因子:
2.1
通讯作者:
Hook J
中科院分区:
文献类型:
--
作者:
Hook J
The directed acyclic graph (DAG) associated with a parallel algorithm captures the partial order in which separaT.L.cal computations are completed and how their outputs are subsequently used in further computations. Unlike in a synchronous parallel algorithm, the DAG associated with an asynchronous parallel algorithm is not predetermined. Instead, it is a product of the asynchronous timing dynamics of the machine and cannot be known in advance, as such it is best thought of as a pseudorandom variable. In this paper, we present a formalism for analyzing the performance of asynchronous parallel Jacobi’s method in terms of its DAG. We use this app.roach to prove error bounds and bounds on the rate of convergence. The rate of convergence bounds is based on the statistical properties of the DAG and is valid for systems with a non-negative iteration matrix. We supp.ort our theoretical results with a suit of numerical examples, where we compare the performance of synchronous and asynchronous parallel Jacobi to certain statistical properties of the DAGs associated with the computations. We also present some examples of small matrices with elements of mixed sign, which demonstrate that determining whether a system will converge under asynchronous iteration in this more general setting is a far more difficult problem.
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DOI:
--
发表时间:
2008
期刊:
影响因子:
--
作者:
V. Blondel;M. Karow;V. Protassov;Fabian R. Wirth
通讯作者:
Fabian R. Wirth
影响因子:
1.1
作者:
Gharavi, R;Anantharam, V
通讯作者:
Anantharam, V
DOI:
--
发表时间:
2013
期刊:
arXiv.org
影响因子:
--
作者:
Jie Lu;Choon Yik Tang
通讯作者:
Choon Yik Tang
DOI:
--
发表时间:
2002
期刊:
影响因子:
--
作者:
N. Dingle;W. Knottenbelt
通讯作者:
W. Knottenbelt