Assembly explicit Schur complement for the given linear system. Provides method for resolution of the full original vector of unknowns. More...

#include <petscvec.h>
#include <algorithm>
#include <limits>
#include <petscmat.h>
#include <armadillo>
#include <petscis.h>
#include "la/distribution.hh"
#include "la/local_to_global_map.hh"
#include "system/system.hh"
#include "la/linsys.hh"
#include "la/linsys_BDDC.hh"
#include "la/schur.hh"

Detailed Description

Assembly explicit Schur complement for the given linear system. Provides method for resolution of the full original vector of unknowns.

Please make a following refer to Flow123d on your project site if you use the program for any purpose, especially for academic research: Flow123d, Research Centre: Advanced Remedial Technologies, Technical University of Liberec, Czech Republic

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License version 3 as published by the Free Software Foundation.

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, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 021110-1307, USA.

$Id$ $Revision$ $LastChangedBy$ $LastChangedDate$

Aim: Explicit schur should be faster then implicit, i.e.

Todo:

vyresit navaznost na lin sys - solve a export seq vektoru, redukce ... ?
inv_a - predava se pri konstrukci, ale neumoznuje jeji reuse - aktualizaci assemblace resp. nutno si na ni drzet ukazatel venku ... reseni ?
? remove old_4_new - just for LSView
automatic preallocation
eliminated block given by IS
in place Schur
? nemodifikovat puvodni system, leda skrze jeho metody

Definition in file schur.cc.