A cost optimal parallel algorithm for balanced decomposition trees

A cost optimal parallel algorithm for balanced decomposition trees

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Article ID: iaor2001953
Country: Japan
Volume: J83-D-I
Issue: 1
Start Page Number: 90
End Page Number: 98
Publication Date: Jan 2000
Journal: Transactions of the Institute of Electronics, Information and Communication Engineers
Authors: , , ,
Keywords: graphs, computational analysis: parallel computers
Abstract:

If an edge is removed from a binary tree, the tree is partitioned into two subtrees. If we repeat the partition for each of subtrees recursively, the tree is partitioned into single nodes. A decomposition tree is a binary tree which shows the above partition process. In addition, the decomposition tree is called balanced if all recursive partitions are balanced. In the paper, the authors propose a cost optimal parallel algorithm for computing balanced decomposition trees on the CREW PRAM model. The algorithm runs in O(log n) time using O(n/log n) processors. Using the algorithm, we also propose a cost optimal algorithm for a geometric problem.

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