ME57: Sparse Hermitian or complex symmetric: multifrontal method

To solve a sparse Hermitian or complex symmetric system of linear equations. Given a sparse Hermitian or complex symmetric matrix \(\mathbf{A} = {\{a _{ij}\}} _{n \times n}\) and an \(n\)-vector \(\mathbf{B}\) (or an \(n \times s\) matrix \(\mathbf{B}\)), this subroutine solves the system \(\mathbf{Ax}=\mathbf{b}\) (\(\mathbf{AX}=\mathbf{B}\)).

ME57 is a complex version of the code MA57 that is described in the technical report “MA57 - a new code for the solution of sparse symmetric indefinite systems” by Duff (RAL-TR-2002-024). This can be obtained from the web site

http://www.numerical.rl.ac.uk/reports/reports.html.