JKLU: A sparse LU factorization algorithm suited to circuit simulation.
Copyright (C) 2006-2012, Timothy A. Davis.
Copyright (C) 2011-2012, Richard Lincoln.
http://www.cise.ufl.edu/research/sparse/klu/

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JKLU is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.

JKLU 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
Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
License along with this Module; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301