Abstract
We study the class of networks which can be created in polylogarithmic parallel time by network constructors [O. Michail, P. Spirakis, Distributed Computing 29(3), 207–237 (2016)]. We prove that the class of trees where each node has any \(k \ge 2\) children can be constructed in \(O(\log {n})\) parallel time with high probability. We show that constructing networks which are k-regular is \(\varOmega (n)\) time, but a minimal relaxation to (l, k)-regular networks, where \(l = k - 1\) can be constructed in polylogarithmic parallel time for any fixed k, where \(k > 2\). We further demonstrate that when the finite-state assumption is relaxed and k is allowed to grow with n, then \(k = \log \log {n}\) acts as a threshold above which network construction is again polynomial time. We use this to provide a partial characterisation of the class of polylogarithmic time network constructors.
This reports on joint work with O. Michail and P. Spirakis which has appeared in [3].
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Michail, O., Spirakis, P.G.: Simple and efficient local codes for distributed stable network construction. Distrib. Comput.29(3), 207–237 (2016)
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Connor, M. (2021). Brief Announcement: On the Distributed Construction of Stable Networks in Polylogarithmic Parallel Time. In: D’Angelo, G., Michail, O. (eds) Algorithmic Aspects of Cloud Computing. ALGOCLOUD 2021. Lecture Notes in Computer Science(), vol 13084. Springer, Cham. https://doi.org/10.1007/978-3-030-93043-1_5
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DOI: https://doi.org/10.1007/978-3-030-93043-1_5
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