EpetraExt Package Browser (Single Doxygen Collection) Development
Poisson2dOperator.h
Go to the documentation of this file.
00001 
00002 //@HEADER
00003 // ***********************************************************************
00004 //
00005 //     EpetraExt: Epetra Extended - Linear Algebra Services Package
00006 //                 Copyright (2011) Sandia Corporation
00007 //
00008 // Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
00009 // the U.S. Government retains certain rights in this software.
00010 //
00011 // Redistribution and use in source and binary forms, with or without
00012 // modification, are permitted provided that the following conditions are
00013 // met:
00014 //
00015 // 1. Redistributions of source code must retain the above copyright
00016 // notice, this list of conditions and the following disclaimer.
00017 //
00018 // 2. Redistributions in binary form must reproduce the above copyright
00019 // notice, this list of conditions and the following disclaimer in the
00020 // documentation and/or other materials provided with the distribution.
00021 //
00022 // 3. Neither the name of the Corporation nor the names of the
00023 // contributors may be used to endorse or promote products derived from
00024 // this software without specific prior written permission.
00025 //
00026 // THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "AS IS" AND ANY
00027 // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00028 // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
00029 // PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SANDIA CORPORATION OR THE
00030 // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
00031 // EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
00032 // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
00033 // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
00034 // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
00035 // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
00036 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00037 //
00038 // Questions? Contact Michael A. Heroux (maherou@sandia.gov)
00039 //
00040 // ***********************************************************************
00041 //@HEADER
00042 
00043 #ifndef _POISSON2DOPERATOR_H_
00044 #define _POISSON2DOPERATOR_H_
00045 
00046 class Epetra_MultiVector;
00047 class Epetra_CrsMatrix;
00048 class Epetra_Map;
00049 class Epetra_Import;
00050 class Epetra_BlockMap;
00051 class Epetra_Comm;
00052 #include "Epetra_Operator.h"
00053 
00055 
00059 class Poisson2dOperator: public virtual Epetra_Operator {
00060       
00061  public:
00062 
00064 
00065 
00069   Poisson2dOperator(int nx, int ny, const Epetra_Comm & comm);
00071 
00072   ~Poisson2dOperator();
00074   
00076 
00078 
00087   int SetUseTranspose(bool UseTranspose){useTranspose_ = UseTranspose; return(0);};
00089   
00091 
00093 
00101   int Apply(const Epetra_MultiVector& X, Epetra_MultiVector& Y) const;
00102 
00104 
00115   int ApplyInverse(const Epetra_MultiVector& X, Epetra_MultiVector& Y) const {return(Apply(X,Y));};
00116   
00118   /* Returns the quantity \f$ \| A \|_\infty\f$ such that
00119      \f[\| A \|_\infty = \max_{1\lei\lem} \sum_{j=1}^n |a_{ij}| \f].
00120      
00121      \warning This method must not be called unless HasNormInf() returns true.
00122   */ 
00123   double NormInf() const {return(8.0);};
00125   
00127 
00129   const char * Label() const{return(Label_);};
00130   
00132   bool UseTranspose() const {return(useTranspose_);};
00133   
00135   bool HasNormInf() const{return(true);};
00136   
00138   const Epetra_Comm & Comm() const{return(comm_);};
00139   
00141   const Epetra_Map & OperatorDomainMap() const {return(*map_);};
00142   
00144   const Epetra_Map & OperatorRangeMap() const {return(*map_);};
00146   
00148 
00149 
00150   Epetra_CrsMatrix * GeneratePrecMatrix() const;
00152 
00153 
00154   int nx_, ny_, myny_;
00155   bool useTranspose_;
00156   const Epetra_Comm & comm_;
00157   Epetra_Map * map_;
00158   int numImports_;
00159   int * importIDs_;
00160   Epetra_Map * importMap_;
00161   Epetra_Import * importer_;
00162   mutable Epetra_MultiVector * importX_;
00163   char * Label_;
00164 };
00165 
00166 #endif /* _POISSON2DOPERATOR_H_ */
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Defines