dgetPartialInv

  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 real matrix. (dgetPartialInv 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 = dgetPartialInv(A, sizeInv)