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arXiv 2103.12012cs.DC
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SP Async:MPI上异步模式下的单源最短路径

SP Async:Single Source Shortest Path in Asynchronous Mode on MPI

Sangeeta Yadav, Asif Khan

摘要:

寻找单源最短路径是一个非常普遍的问题。但随着大型数据集在重要应用(如社交网络数据挖掘)中的规模不断增加,需要对这些技术进行网络拓扑确定-有效的并行化,以满足真正大型图的需求。我们提出了一个新的节点间bellman和节点内Dijkstra技术在MPI中实现解决SSSP问题。我们已经使用了一个三角形为基础的边缘修剪空闲进程,和两种不同的终止检测技术。在每个节点内,该算法作为Dijkstra工作,对于外部通信,它表现为节点间的bellman ford。第一种终端检测技术是基于令牌环和计数器的。第二种是基于启发式的技术,其中从边间的数量和分区的数量计算超时。在这个项目中,使用了异步的消息传递模式。

英文摘要:

Finding single source shortest path is a very ubiquitous problem. But with the increasing size of large datasets in important application like social network data-mining, network topology determination-efficient parallelization of these techniques is needed to match the need of really large graphs. We present a new Inter node-bellman cum Intra node Dijkstra technique implemented in MPI to solve SSSP problem. We have used a triangle based edge pruning for idle processes, and two different techniques for termination detection. Within each node the algorithm works as Dijkstra and for outer communication it behaves as inter node bellman ford. First termination detection technique is based on the token ring and counter. Second is a heuristic based technique, in which the timeout is calculated from the number of inter-edges and number of partitions. In this project asynchronous mode of message passing is used.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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