/[escript]/trunk/esys2/finley/src/CPPAdapter/SystemMatrixAdapter.h
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Contents of /trunk/esys2/finley/src/CPPAdapter/SystemMatrixAdapter.h

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Revision 82 - (show annotations)
Tue Oct 26 06:53:54 2004 UTC (14 years, 11 months ago) by jgs
File MIME type: text/plain
File size: 3551 byte(s)
Initial revision

1 /*
2 ******************************************************************************
3 * *
4 * COPYRIGHT ACcESS 2004 - All Rights Reserved *
5 * *
6 * This software is the property of ACcESS. No part of this code *
7 * may be copied in any form or by any means without the expressed written *
8 * consent of ACcESS. Copying, use or modification of this software *
9 * by any unauthorised person is illegal unless that person has a software *
10 * license agreement with ACcESS. *
11 * *
12 ******************************************************************************
13 */
14
15 #if !defined finley_SystemMatrixAdapter_20040610_H
16 #define finley_SystemMatrixAdapter_20040610_H
17
18 #include "finley/CPPAdapter/SystemMatrixAdapter.h"
19 #include "escript/Data/AbstractSystemMatrix.h"
20 #include "escript/Data/Data.h"
21 extern "C" {
22 #include "finley/finleyC/System.h"
23 }
24 #include <boost/python/dict.hpp>
25 #include <boost/shared_ptr.hpp>
26
27 namespace finley {
28
29 class SystemMatrixAdapter:public escript::AbstractSystemMatrix {
30
31 /**
32 \brief
33 Wrapper for Finley_SystemMatrix.
34
35 Description:
36 Wrapper for Finley_SystemMatrix.
37 */
38
39 public:
40
41 /**
42 /brief
43 Default Constructor for SystemMatrixAdapter.
44 NB: Only throws an exception.
45 */
46 SystemMatrixAdapter();
47
48 /**
49 /brief
50 Constructor for SystemMatrixAdapter.
51 */
52 SystemMatrixAdapter(const Finley_SystemMatrix* system_matrix,
53 const int row_blocksize,
54 const escript::FunctionSpace& row_functionspace,
55 const int column_blocksize,
56 const escript::FunctionSpace& colum_functionspace);
57
58 /**
59 \brief
60 Destructor for SystemMatrixAdapter. As specified in the constructor
61 this deallocates the pointer given to the constructor.
62 */
63 ~SystemMatrixAdapter();
64
65 /**
66 \brief
67 Returns the pointer to the system matrix.
68 */
69 Finley_SystemMatrix* getFinley_SystemMatrix() const;
70
71 /**
72 \brief
73 Returns the system matrix as a const AbstractSystemMatrix&.
74 */
75 inline const escript::AbstractSystemMatrix& asAbstractSystemMatrix() const
76 {
77 return dynamic_cast<const escript::AbstractSystemMatrix&>(*this);
78 }
79
80 /**
81 \brief
82 Returns a system matrix as a const SystemMatrixAdapter&.
83 */
84 inline static const SystemMatrixAdapter& asSystemMatrixAdapter(const AbstractSystemMatrix& systemmatrix)
85 {
86 return dynamic_cast<const SystemMatrixAdapter&>(systemmatrix);
87 }
88
89 /**
90 \brief
91 nullifyRowsAndCols - calls Finley_SystemMatrix_nullifyRowsAndCols.
92 */
93 void nullifyRowsAndCols(const escript::Data& row_q, const escript::Data& col_q, const double mdv) const;
94
95 protected:
96
97 private:
98
99 /**
100 \brief
101 solves the linear system this*out=in
102 */
103 virtual void setToSolution(escript::Data& out, const escript::Data& in, const boost::python::dict& options) const;
104
105 /**
106 \brief
107 performs y+=this*x
108 */
109 virtual void ypAx(escript::Data& y, const escript::Data& x) const;
110
111 //
112 // pointer to the externally created finley mesh - system_matrix.
113 //
114 boost::shared_ptr<Finley_SystemMatrix> m_system_matrix;
115
116 };
117
118 } // end of namespace
119 #endif

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