/[escript]/trunk-mpi-branch/escript/src/AbstractSystemMatrix.cpp
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Contents of /trunk-mpi-branch/escript/src/AbstractSystemMatrix.cpp

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Revision 989 - (show annotations)
Wed Feb 21 00:26:26 2007 UTC (14 years, 3 months ago) by ksteube
File size: 3936 byte(s)
Branch for parallelization of implicit solutions.

This is a work in progress and should not yet be used by anyone.

The parallelization of explicit solutions was done by Ben and is
already incorporated into the main branch of trunk.


1 // $Id$
2 /*
3 ************************************************************
4 * Copyright 2006 by ACcESS MNRF *
5 * *
6 * http://www.access.edu.au *
7 * Primary Business: Queensland, Australia *
8 * Licensed under the Open Software License version 3.0 *
9 * http://www.opensource.org/licenses/osl-3.0.php *
10 * *
11 ************************************************************
12 */
13
14 #include "AbstractSystemMatrix.h"
15 #include "DataException.h"
16 #include "DataArrayView.h"
17 #include "Data.h"
18
19 namespace escript {
20
21 AbstractSystemMatrix::AbstractSystemMatrix() {
22 //std::cout << "Called default AbstractSystemMatrix constructor" << std::endl;
23 m_empty=1;
24 }
25
26 AbstractSystemMatrix::AbstractSystemMatrix(const int row_blocksize,
27 const FunctionSpace& row_functionspace,
28 const int column_blocksize,
29 const FunctionSpace& column_functionspace)
30 {
31 if (row_blocksize<=0)
32 throw DataException("Error - negative row block size of system matrix.");
33 if (column_blocksize<=0)
34 throw DataException("Error - negative column block size of system matrix.");
35
36 m_empty=0;
37 m_row_blocksize=row_blocksize;
38 m_column_blocksize=column_blocksize;
39 m_row_functionspace=row_functionspace;
40 m_column_functionspace=column_functionspace;
41 }
42
43 AbstractSystemMatrix::~AbstractSystemMatrix() {
44 }
45
46 int AbstractSystemMatrix::isEmpty() const {
47 return m_empty;
48 }
49
50 Data operator*(const AbstractSystemMatrix& left,const Data& right)
51 {
52 Data tmp=(Data) right;
53 return left.vectorMultiply(tmp);
54 }
55
56 Data AbstractSystemMatrix::vectorMultiply(Data& right) const
57 {
58 if (isEmpty())
59 throw SystemMatrixException("Error - Matrix is empty.");
60 if (right.getDataPointSize()!=getColumnBlockSize())
61 throw SystemMatrixException("Error - column block size and input data size do not match.");
62 DataArrayView::ShapeType shape;
63 if (getRowBlockSize()>1) shape.push_back(getRowBlockSize());
64
65 Data out=Data(0.,shape,getRowFunctionSpace(),true);
66 Data in=Data(right,getColumnFunctionSpace());
67 ypAx(out,in);
68 return out;
69 }
70
71 void AbstractSystemMatrix::ypAx(Data& y,Data& x) const
72 {
73 throw SystemMatrixException("Error - ypAx not available");
74 }
75
76 Data AbstractSystemMatrix::solve(Data& in,const boost::python::dict& options) const
77 {
78 printf("ksteube in escript/src/AbstractSystemMatrix.cpp : solve()\n");
79 if (isEmpty())
80 throw SystemMatrixException("Error - Matrix is empty.");
81 if (in.getFunctionSpace()!=getRowFunctionSpace())
82 throw SystemMatrixException("Error - row function space and function space of right hand side do not match.");
83 if (in.getDataPointSize()!=getRowBlockSize())
84 throw SystemMatrixException("Error - row block size and right hand side size do not match.");
85 DataArrayView::ShapeType shape;
86 if (getRowBlockSize()>1) shape.push_back(getColumnBlockSize());
87 Data out=Data(0.,shape,getColumnFunctionSpace(),true);
88 setToSolution(out,in,options);
89 return out;
90 }
91 void AbstractSystemMatrix::setToSolution(Data& out,Data& in,const boost::python::dict& options) const
92 {
93 throw SystemMatrixException("Error - setToSolution not available");
94 }
95 void AbstractSystemMatrix::saveMM(const std::string& fileName) const
96 {
97 throw SystemMatrixException("Error - Matrix Market interface not available.");
98 }
99 void AbstractSystemMatrix::saveHB(const std::string& fileName) const
100 {
101 throw SystemMatrixException("Error - Harwell-Boeing interface not available.");
102 }
103 void AbstractSystemMatrix::resetValues() const
104 {
105 throw SystemMatrixException("Error - setValue is not implemented.");
106 }
107
108 } // end of namespace

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