A cost effective graph-based partitioning algorithm for a system of linear equations
by Hiroaki Yui; Satoshi Nishimura
International Journal of Computational Science and Engineering (IJCSE), Vol. 16, No. 2, 2018

Abstract: There are many techniques for reducing the number of operations in directly solving a system of sparse linear equations. One such method is nested dissection (ND). In numerical analysis, the ND algorithm heuristically divides and conquers a system of linear equations, based on graph partitioning. In this article, we present a new algorithm for the first level of such graph partitioning, which splits a graph into two roughly equalised subgraphs. The algorithm runs in almost linear time. We evaluate and discuss the solving costs by applying the proposed algorithm to various matrices.

Online publication date: Mon, 19-Mar-2018

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