情報処理学会 第86回全国大会 会期:2024年3月15日~17日

6K-04
拡張極大P-star分割に対する自己安定アルゴリズム
○茶円春希,江口僚太(奈良先端大),大下福仁(福井工大),井上美智子(奈良先端大)
This paper introduces a new problem extended maximal P -star partition where maximal p-star decompositions are concurrently constructed for p = 0, 1, . . . , P for a given P . We propose a self-stabilizing algorithm constructing the extended maximal P -star partition of a distributed network. The extended maximal P -star partition is a partition of nodes in a graph such that for any p (≤ P ), maximal p-star decomposition is constructed for a graph excluding nodes belonging to larger stars. Under the unfair distributed daemon, the most general scheduler model, our proposed algorithm converges in at most O(n) rounds with O(P log n)
space per process, where n is the number of nodes. Though the extended maximal P -star partition is achieved with a fair composition of maximal p-star decomposition algorithms for p = 0, 1, . . . , P , the proposed algorithm only requires the same space complexity as existing maximal P -star decompoition, that concludes, it drastically reduces space complexity with comparable round complexity compared to a fair composition of existing algorithms.