zgetPartialInv

  Copyright (C) 2016 Peter Rakyta, Ph.D.
  This program is free software: you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation, either version 3 of the License, or
  (at your option) any later version.
  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.
  You should have received a copy of the GNU General Public License
  along with this program.  If not, see http://www.gnu.org/licenses/.

Description

Single/multi threaded function to calculate the partial inverse of a double valued complex matrix. (zgetPartialInv can be also compiled with Intel MIC support) The input matrix A must be a structurally symmetric sparse matrix. The calculated partial inverse is of size sizeInv x sizeInv (measured from the right bottom corner of the matrix A).

Syntax

ret = zgetPartialInv(A, sizeInv)

Parameters
A A structurally symmetric complex valued sparse matrix.
sizeInv The dimension of the partial inverse to be calculated.


Return
ret The calculated partial inverse.