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Evaluation of partial factorization for reduction of finite element matrices

Jarzębski P., Wiśniewski K.

Engineering Transactions

2017

Vol. 65, iss. 1

163--170

In this paper, we present the concept of Partial Factorization [1] and discuss its possible applications to the Finite Element method. We consider: (1) reduction of the element tangent matrix, which is particularly important for mixed/enhanced elements and (2) reduction of the sub-domain matrices of the Domain Decomposition (DD) equation solvers run either sequentially on a single machine or in parallel on a cluster of computers. We demonstrate that Partial Factorization can be beneficial for these applications.