Atomic Power in Forks: A Super-Logarithmic Lower Bound for Implementing Butterfly Networks in the Nonatomic Binary Fork-Join Model
Atomic Power in Forks: A Super-Logarithmic Lower Bound for Implementing Butterfly Networks in the Nonatomic Binary Fork-Join Model
复制标题
分叉中的原子力:在非原子二元分叉连接模型中实现蝴蝶网络的超对数下界
DOI:
10.1137/1.9781611976465.128
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Sithinava, Nodari
中科院分区:
文献类型:
--
作者:
Goodrich, Michael T;Jacob, Riko;Sithinava, Nodari
We prove an Ω (lognlog logn) lower bound for the span of implementing theninput, logn-depth FFT circuit (also known as butterfly network) in the nonatomic binary fork-join model. In this model, memory-access synchronizations occur only through fork operations, which spawn two child threads, and join operations, which resume a parent thread when its child threads terminate. Our bound is asymptotically tight for the nonatomic binary fork-join model, which has been of interest of late, due to its conceptual elegance and ability to capture asynchrony. Our bound implies super-logarithmic lower bound in the nonatomic binary fork-join model for implementing the butterfly merging networks used, e.g., in Batcher's bitonic and odd-even mergesort networks. This lower bound also implies an asymptotic separation result for the atomic and nonatomic versions of the fork-join model, since, as we point out, FFT circuits can be implemented in the atomic binary fork-join model with span equal to their circuit depth.
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影响因子:
1.1
作者:
R. Cole;M. Goodrich
通讯作者:
M. Goodrich
DOI:
--
发表时间:
2012
期刊:
IEEE International Parallel and Distributed Processing Symposium
影响因子:
--
作者:
R. Cole;V. Ramachandran
通讯作者:
V. Ramachandran
DOI:
10.1109/sfcs.1991.185439
发表时间:
1991
期刊:
[1991] Proceedings 32nd Annual Symposium of Foundations of Computer Science
影响因子:
--
作者:
M. Goodrich
通讯作者:
M. Goodrich
DOI:
10.1145/3210377.3210381
发表时间:
2018-05
期刊:
Proceedings of the 30th on Symposium on Parallelism in Algorithms and Architectures
影响因子:
--
作者:
G. Blelloch;Phillip B. Gibbons;Yan Gu;Charles McGuffey;Julian Shun
通讯作者:
G. Blelloch;Phillip B. Gibbons;Yan Gu;Charles McGuffey;Julian Shun
影响因子:
0.6
作者:
A. Duda;T. Czachórski
通讯作者:
T. Czachórski