/[escript]/trunk/escript/src/AbstractSystemMatrix.cpp
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Annotation of /trunk/escript/src/AbstractSystemMatrix.cpp

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Revision 97 - (hide annotations)
Tue Dec 14 05:39:33 2004 UTC (14 years, 10 months ago) by jgs
Original Path: trunk/esys2/escript/src/Data/AbstractSystemMatrix.cpp
File size: 4160 byte(s)
*** empty log message ***

1 jgs 97 // $Id$
2 jgs 82 /*
3     ******************************************************************************
4     * *
5     * COPYRIGHT ACcESS 2004 - All Rights Reserved *
6     * *
7     * This software is the property of ACcESS. No part of this code *
8     * may be copied in any form or by any means without the expressed written *
9     * consent of ACcESS. Copying, use or modification of this software *
10     * by any unauthorised person is illegal unless that person has a software *
11     * license agreement with ACcESS. *
12     * *
13     ******************************************************************************
14     */
15    
16     #include "escript/Data/AbstractSystemMatrix.h"
17     #include "escript/Data/FunctionSpace.h"
18     #include "escript/Data/DataException.h"
19     #include "escript/Data/DataArrayView.h"
20    
21     namespace escript {
22    
23     AbstractSystemMatrix::AbstractSystemMatrix() {
24     //std::cout << "Called default AbstractSystemMatrix constructor" << std::endl;
25     m_empty=1;
26     }
27    
28     AbstractSystemMatrix::AbstractSystemMatrix(const int row_blocksize,
29     const FunctionSpace& row_functionspace,
30     const int column_blocksize,
31     const FunctionSpace& column_functionspace)
32     {
33     if (row_blocksize<=0)
34     throw DataException("Error - negative row block size of system matrix.");
35     if (column_blocksize<=0)
36     throw DataException("Error - negative column block size of system matrix.");
37    
38     m_empty=0;
39     m_row_blocksize=row_blocksize;
40     m_column_blocksize=column_blocksize;
41     m_row_functionspace=row_functionspace;
42     m_column_functionspace=column_functionspace;
43     }
44    
45     AbstractSystemMatrix::~AbstractSystemMatrix() {
46     }
47    
48     int AbstractSystemMatrix::isEmpty() const {
49     return m_empty;
50     }
51    
52     Data operator*(const AbstractSystemMatrix& left, const Data& right)
53     {
54     return left.vectorMultiply(right);
55     }
56    
57     Data AbstractSystemMatrix::vectorMultiply(const Data& right) const
58     {
59     if (isEmpty())
60     throw SystemMatrixException("Error - Matrix is empty.");
61     if (right.getFunctionSpace()!=getColumnFunctionSpace())
62     throw SystemMatrixException("Error - column function space and function space of input data do not match.");
63     if (right.getDataPointSize()!=getColumnBlockSize())
64     throw SystemMatrixException("Error - column block size and input data size do not match.");
65     DataArrayView::ShapeType shape;
66     if (getRowBlockSize()>1) shape.push_back(getRowBlockSize());
67    
68     Data out=Data(0.,shape,getRowFunctionSpace(),true);
69     ypAx(out,right);
70     return out;
71     }
72    
73     void AbstractSystemMatrix::ypAx(Data& y,const Data& x) const
74     {
75     throw SystemMatrixException("Error - ypAx not available");
76     }
77    
78     Data AbstractSystemMatrix::solve(const Data& in,const boost::python::dict& options) const
79     {
80     if (isEmpty())
81     throw SystemMatrixException("Error - Matrix is empty.");
82     if (in.getFunctionSpace()!=getRowFunctionSpace())
83     throw SystemMatrixException("Error - row function space and function space of right hand side do not match.");
84     if (in.getDataPointSize()!=getRowBlockSize())
85     throw SystemMatrixException("Error - row block size and right hand side size do not match.");
86     DataArrayView::ShapeType shape;
87     if (getRowBlockSize()>1) shape.push_back(getColumnBlockSize());
88     Data out=Data(0.,shape,getColumnFunctionSpace(),true);
89     setToSolution(out,in,options);
90     return out;
91     }
92     void AbstractSystemMatrix::setToSolution(Data& out,const Data& in,const boost::python::dict& options) const
93     {
94     throw SystemMatrixException("Error - setToSolution not available");
95     }
96 jgs 97 void AbstractSystemMatrix::saveMM(const std::string& fileName) const
97     {
98     throw SystemMatrixException("Error - Matrix Market interface not available.");
99     }
100     void AbstractSystemMatrix:: setValue(const double value) const
101     {
102     }
103 jgs 82
104     } // end of namespace

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