00001 // $Id: NOX_Petsc_SharedJacobian.H,v 1.5 2006/08/22 00:01:48 rppawlo Exp $ 00002 // $Source: /space/CVS/Trilinos/packages/nox/src-petsc/NOX_Petsc_SharedJacobian.H,v $ 00003 00004 //@HEADER 00005 // ************************************************************************ 00006 // 00007 // NOX: An Object-Oriented Nonlinear Solver Package 00008 // Copyright (2002) Sandia Corporation 00009 // 00010 // LOCA: Library of Continuation Algorithms Package 00011 // Copyright (2005) Sandia Corporation 00012 // 00013 // Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive 00014 // license for use of this work by or on behalf of the U.S. Government. 00015 // 00016 // This library is free software; you can redistribute it and/or modify 00017 // it under the terms of the GNU Lesser General Public License as 00018 // published by the Free Software Foundation; either version 2.1 of the 00019 // License, or (at your option) any later version. 00020 // 00021 // This library is distributed in the hope that it will be useful, but 00022 // WITHOUT ANY WARRANTY; without even the implied warranty of 00023 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00024 // Lesser General Public License for more details. 00025 // 00026 // You should have received a copy of the GNU Lesser General Public 00027 // License along with this library; if not, write to the Free Software 00028 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 00029 // USA 00030 // 00031 // Questions? Contact Roger Pawlowski (rppawlo@sandia.gov) or 00032 // Eric Phipps (etphipp@sandia.gov), Sandia National Laboratories. 00033 // ************************************************************************ 00034 // CVS Information 00035 // $Source: /space/CVS/Trilinos/packages/nox/src-petsc/NOX_Petsc_SharedJacobian.H,v $ 00036 // $Author: rppawlo $ 00037 // $Date: 2006/08/22 00:01:48 $ 00038 // $Revision: 1.5 $ 00039 // ************************************************************************ 00040 //@HEADER 00041 00042 #ifndef NOX_PETSC_SHARED_JACOBIAN_H 00043 #define NOX_PETSC_SHARED_JACOBIAN_H 00044 00045 #include "petscmat.h" 00046 00047 namespace NOX { 00048 namespace Petsc { 00049 00050 class Group; // forward declaration 00051 00063 class SharedJacobian { 00064 00065 public: 00066 00068 SharedJacobian(Mat& j); 00069 00071 SharedJacobian(Mat& j, Mat& p); 00072 00074 ~SharedJacobian(); 00075 00077 Mat& getJacobian(const Group* newowner); 00078 00080 const Mat& getJacobian() const; 00081 00083 bool isOwner(const Group* grp) const; 00084 00086 Mat& getPrec(const Group* newowner); 00087 00089 const Mat& getPrec() const; 00090 00091 protected: 00092 00094 Mat* jacobian; 00095 00097 Mat* prec; 00098 00100 const Group* owner; 00101 }; 00102 } // namespace Petsc 00103 } // namespace NOX 00104 00105 #endif