/[escript]/trunk/ripley/src/Rectangle.h
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Contents of /trunk/ripley/src/Rectangle.h

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Revision 3713 - (show annotations)
Tue Dec 6 04:43:29 2011 UTC (7 years, 9 months ago) by caltinay
Original Path: branches/ripleygmg_from_3668/ripley/src/Rectangle.h
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Integrals in 2D and 3D for rectangle & brick elements & face elements in
regular and reduced orders.

1
2 /*******************************************************
3 *
4 * Copyright (c) 2003-2011 by University of Queensland
5 * Earth Systems Science Computational Center (ESSCC)
6 * http://www.uq.edu.au/esscc
7 *
8 * Primary Business: Queensland, Australia
9 * Licensed under the Open Software License version 3.0
10 * http://www.opensource.org/licenses/osl-3.0.php
11 *
12 *******************************************************/
13
14 #ifndef __RIPLEY_RECTANGLE_H__
15 #define __RIPLEY_RECTANGLE_H__
16
17 #include <ripley/RipleyDomain.h>
18
19 struct Paso_Pattern;
20
21 namespace ripley {
22
23 /**
24 \brief
25 Rectangle is the 2-dimensional implementation of a RipleyDomain.
26 */
27 class Rectangle: public RipleyDomain
28 {
29 public:
30
31 /**
32 \brief creates a rectangular mesh with n0 x n1 elements over the
33 rectangle [0,l0] x [0,l1].
34 \param n0,n1 number of elements in each dimension
35 \param l0,l1 length of each side of rectangle
36 \param d0,d1 number of subdivisions in each dimension
37 */
38 RIPLEY_DLL_API
39 Rectangle(int n0, int n1, double l0, double l1, int d0, int d1);
40
41 /**
42 \brief
43 Destructor.
44 */
45 RIPLEY_DLL_API
46 ~Rectangle();
47
48 /**
49 \brief
50 returns a description for this domain
51 */
52 RIPLEY_DLL_API
53 virtual std::string getDescription() const;
54
55 /**
56 \brief equality operator
57 */
58 RIPLEY_DLL_API
59 virtual bool operator==(const escript::AbstractDomain& other) const;
60
61 /**
62 \brief
63 dumps the mesh to a file with the given name
64 \param filename The name of the output file
65 */
66 RIPLEY_DLL_API
67 void dump(const std::string& filename) const;
68
69 /**
70 \brief
71 returns the array of reference numbers for a function space type
72 \param fsType The function space type
73 */
74 RIPLEY_DLL_API
75 const int* borrowSampleReferenceIDs(int fsType) const;
76
77 /**
78 \brief
79 returns true if this rank owns the sample id.
80 */
81 RIPLEY_DLL_API
82 virtual bool ownSample(int fs_code, index_t id) const;
83
84 /**
85 \brief
86 copies the gradient of 'in' into 'out'. The actual function space to be
87 considered for the gradient is defined by 'in'. Both arguments have to
88 be defined on this domain.
89 */
90 RIPLEY_DLL_API
91 virtual void setToGradient(escript::Data& out, const escript::Data& in) const;
92
93 /**
94 \brief
95 copies the integrals of the function defined by arg into integrals.
96 arg has to be defined on this domain.
97 */
98 RIPLEY_DLL_API
99 virtual void setToIntegrals(std::vector<double>& integrals, const escript::Data& arg) const;
100
101 /**
102 \brief
103 returns the number of data points summed across all MPI processes
104 */
105 RIPLEY_DLL_API
106 virtual int getNumDataPointsGlobal() const { return (m_gNE0+1)*(m_gNE1+1); }
107
108 /**
109 \brief
110 writes information about the mesh to standard output
111 \param full whether to print additional data
112 */
113 RIPLEY_DLL_API
114 virtual void Print_Mesh_Info(const bool full=false) const;
115
116 /**
117 \brief
118 returns the number of nodes per MPI rank in each dimension
119 */
120 RIPLEY_DLL_API
121 virtual IndexVector getNumNodesPerDim() const;
122
123 /**
124 \brief
125 returns the number of elements per MPI rank in each dimension
126 */
127 RIPLEY_DLL_API
128 virtual IndexVector getNumElementsPerDim() const;
129
130 /**
131 \brief
132 returns the number of face elements in the order
133 (left,right,bottom,top,[front,back]) on current MPI rank
134 */
135 RIPLEY_DLL_API
136 virtual IndexVector getNumFacesPerBoundary() const;
137
138 /**
139 \brief
140 returns the node distribution vector
141 */
142 RIPLEY_DLL_API
143 virtual IndexVector getNodeDistribution() const { return m_nodeDistribution; }
144
145 /**
146 \brief
147 returns the first coordinate value and the node spacing along given
148 dimension as a pair
149 */
150 RIPLEY_DLL_API
151 virtual std::pair<double,double> getFirstCoordAndSpacing(dim_t dim) const;
152
153 /**
154 \brief
155 adds a PDE onto the stiffness matrix mat and rhs
156 */
157 RIPLEY_DLL_API
158 virtual void addPDEToSystem(escript::AbstractSystemMatrix& mat,
159 escript::Data& rhs, const escript::Data& A, const escript::Data& B,
160 const escript::Data& C, const escript::Data& D,
161 const escript::Data& X, const escript::Data& Y,
162 const escript::Data& d, const escript::Data& y,
163 const escript::Data& d_contact, const escript::Data& y_contact,
164 const escript::Data& d_dirac, const escript::Data& y_dirac) const;
165
166 protected:
167 virtual dim_t getNumNodes() const { return m_N0*m_N1; }
168 virtual dim_t getNumElements() const { return m_NE0*m_NE1; }
169 virtual dim_t getNumFaceElements() const;
170 virtual void assembleCoordinates(escript::Data& arg) const;
171 virtual Paso_SystemMatrixPattern* getPattern(bool reducedRowOrder, bool reducedColOrder) const;
172 virtual void interpolateNodesOnElements(escript::Data& out,
173 escript::Data& in, bool reduced) const;
174 virtual void interpolateNodesOnFaces(escript::Data& out, escript::Data& in,
175 bool reduced) const;
176
177 private:
178 void populateSampleIds();
179 int insertNeighbours(IndexVector& index, index_t node) const;
180 void generateCouplePatterns(Paso_Pattern** colPattern,
181 Paso_Pattern** rowPattern) const;
182
183 /// total number of elements in each dimension
184 dim_t m_gNE0, m_gNE1;
185
186 /// side lengths of domain
187 double m_l0, m_l1;
188
189 /// number of spatial subdivisions
190 int m_NX, m_NY;
191
192 /// number of elements for this rank in each dimension
193 dim_t m_NE0, m_NE1;
194
195 /// number of nodes for this rank in each dimension
196 dim_t m_N0, m_N1;
197
198 /// first node on this rank is at (offset0,offset1) in global mesh
199 dim_t m_offset0, m_offset1;
200
201 /// faceOffset[i]=-1 if face i is not an external face, otherwise it is
202 /// the index of that face (where i: 0=left, 1=right, 2=bottom, 3=top)
203 IndexVector m_faceOffset;
204
205 /// vector of sample reference identifiers
206 IndexVector m_nodeId;
207 IndexVector m_elementId;
208 IndexVector m_faceId;
209
210 // vector with first node id on each rank
211 IndexVector m_nodeDistribution;
212 };
213
214 } // end of namespace ripley
215
216 #endif // __RIPLEY_RECTANGLE_H__
217

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