/[escript]/trunk/finley/src/Mesh.h
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Contents of /trunk/finley/src/Mesh.h

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Revision 793 - (show annotations)
Sat Jul 29 19:40:22 2006 UTC (13 years, 2 months ago) by dhawcroft
File MIME type: text/plain
File size: 6643 byte(s)
Preliminary MPI version of saveVTK. Needs testers. Works for point data and should work for cell centered data.
1 /*
2 ************************************************************
3 * Copyright 2006 by ACcESS MNRF *
4 * *
5 * http://www.access.edu.au *
6 * Primary Business: Queensland, Australia *
7 * Licensed under the Open Software License version 3.0 *
8 * http://www.opensource.org/licenses/osl-3.0.php *
9 * *
10 ************************************************************
11 */
12 /* Version: $Id$ */
13
14
15 #ifndef INC_FINLEY_MESH
16 #define INC_FINLEY_MESH
17
18 /**************************************************************/
19
20 /* Finley: Mesh */
21
22 /* A mesh is built from nodes and elements which are describing the
23 domain, the surface and point sources. (the latter are needed to
24 establish links with other codes, in particular to particle
25 codes). The nodes are stored a Finley_NodeFile and elements in a
26 Finley_ElementFile. A Finley_NodeFile and three Finley_ElementFile
27 containing the elements describing the domain, surface and point
28 sources respectively. Notice that the surface elements do not
29 necessaryly cover the entire surface of the domain. */
30
31 /* The element type is fixed by the reference element, see
32 ReferenceElement.h. The numbering of the nodes starts with 0. */
33
34 /* Important: it is assumed that every node is appearing in at least
35 one element or surface element and that any node used in an
36 element, surface element or as a point is specified in the
37 Finley_Node, see also Finley_resolveNodeIds. */
38
39 /* In some cases it is useful to refer to a mesh entirly built from
40 order 1 (=linear) elements. The linear version of the mesh can be
41 accessed by referning to the first few nodes of each element
42 (thanks to the way the nodes are ordered). As the numbering of
43 these nodes is not continuous a relabeling vectors are introduced
44 in the Finley_NodeFile. This feature is not fully implemented
45 yet. */
46
47 /* allnodes and elements are tagged. the tag allows to group nodes and
48 elements. A typical application is to mark surface elements on a
49 certain portion of the domain with the same tag. All these surface
50 elements can then assigned the same value eg. for the pressure. */
51
52 /* Thespacial dimension is determined by the type of elements
53 used. The spacial dimension should be accessed by the function
54 Finley_Mesh_getDim. Notice that the element type also determines
55 the type of surface elements to be used. */
56
57 /**************************************************************/
58
59 #include "Finley.h"
60 #include "NodeFile.h"
61 #include "ElementFile.h"
62 #include "paso/SystemMatrixPattern.h"
63 #include "escript/DataC.h"
64
65 #ifdef PASO_MPI
66 #include "paso/Paso_MPI.h"
67
68 #endif
69
70 /**************************************************************/
71
72 /* this struct holds a mesh: */
73
74 struct Finley_Mesh {
75 char* Name; /* the name of the mesh */
76 index_t order; /* integration order */
77 dim_t reference_counter; /* counts the number of references to the mesh; */
78 Finley_NodeFile* Nodes; /* the table of the nodes */
79 Finley_ElementFile* Elements; /* the table of the elements */
80 Finley_ElementFile* FaceElements; /* the table of the face elements */
81 Finley_ElementFile* ContactElements; /* the table of the contact elements */
82 Finley_ElementFile* Points; /* the table of points (treated as elements of dimension 0) */
83
84 /* pointer to the sparse matrix pattern */
85
86 Paso_SystemMatrixPattern *FullFullPattern;
87 Paso_SystemMatrixPattern *FullReducedPattern;
88 Paso_SystemMatrixPattern *ReducedFullPattern;
89 Paso_SystemMatrixPattern *ReducedReducedPattern;
90 #ifdef PASO_MPI
91 Paso_MPIInfo *MPIInfo;
92 #endif
93 };
94
95 typedef struct Finley_Mesh Finley_Mesh;
96
97 /* these structures are used for matching surfaces elements: */
98
99 struct Finley_Mesh_findMatchingFaces_center{
100 index_t refId;
101 double x[MAX_numDim];
102 };
103 typedef struct Finley_Mesh_findMatchingFaces_center Finley_Mesh_findMatchingFaces_center;
104
105 /**************************************************************/
106
107 /* interfaces: */
108 #ifndef PASO_MPI
109 Finley_Mesh* Finley_Mesh_alloc(char* name,dim_t numDim, index_t order);
110 #else
111 Finley_Mesh* Finley_Mesh_alloc(char* name,dim_t numDim, index_t order, Paso_MPIInfo *mpi_info);
112 void Finley_Mesh_resolveDegreeOfFreedomOrder( Finley_Mesh *in, bool_t doReduced );
113 void print_mesh_statistics( Finley_Mesh *out, bool_t reduced );
114 void Finley_Mesh_prepareElementDistribution( Finley_Mesh *in );
115 #endif
116 /*Finley_Mesh* Finley_Mesh_alloc(char*,int,int);*/
117 Finley_Mesh* Finley_Mesh_reference(Finley_Mesh*);
118 void Finley_Mesh_dealloc(Finley_Mesh*);
119 dim_t Finley_Mesh_getDim(Finley_Mesh*);
120 dim_t Finley_Mesh_getNumNodes(Finley_Mesh*);
121 dim_t Finley_Mesh_getNumDegreesOfFreedom(Finley_Mesh*);
122 dim_t Finley_Mesh_getReducedNumDegreesOfFreedom(Finley_Mesh*);
123 Paso_SystemMatrixPattern* Finley_getPattern(Finley_Mesh *mesh,bool_t reduce_row_order, bool_t reduce_col_order);
124 Paso_SystemMatrixPattern* Finley_makePattern(Finley_Mesh *mesh,bool_t reduce_row_order, bool_t reduce_col_order);
125 void Finley_Mesh_write(Finley_Mesh*,char*);
126 Finley_Mesh* Finley_Mesh_read(char*,index_t);
127 void Finley_Mesh_setCoordinates(Finley_Mesh*,escriptDataC*);
128
129 void Finley_Mesh_prepare(Finley_Mesh* in);
130 void Finley_Mesh_prepareNodes(Finley_Mesh* in);
131 void Finley_Mesh_improveColoring(Finley_Mesh* in);
132 void Finley_Mesh_optimizeElementDistribution(Finley_Mesh* in);
133 void Finley_Mesh_resolveNodeIds(Finley_Mesh*);
134 Finley_Mesh* Finley_Mesh_merge(dim_t, Finley_Mesh**);
135
136 void Finley_Mesh_relableElementNodes(int*,int,Finley_Mesh*);
137 void Finley_Mesh_markNodes(int*,int,Finley_Mesh*,int);
138
139 void Finley_Mesh_glueFaces(Finley_Mesh* self,double safety_factor,double tolerance);
140 void Finley_Mesh_joinFaces(Finley_Mesh* self,double safety_factor,double tolerance);
141
142 int Finley_Mesh_findMatchingFaces_compar(const void*,const void*);
143 void Finley_Mesh_findMatchingFaces(Finley_NodeFile*,Finley_ElementFile *,double,double, int*, int*,int*,int*);
144 void Finley_Mesh_print(Finley_Mesh *in);
145 void Finley_Mesh_saveDX(const char * filename_p, Finley_Mesh *mesh_p, const dim_t num_data,char* *names_p,escriptDataC* *data_pp);
146 #ifndef PASO_MPI
147 void Finley_Mesh_saveVTK(const char * filename_p, Finley_Mesh *mesh_p, const dim_t num_data,char* *names_p,escriptDataC* *data_pp);
148 #else
149 void Finley_Mesh_saveVTK_MPIO(const char * filename_p, Finley_Mesh *mesh_p, const dim_t num_data,char*
150 *names_p,escriptDataC* *data_pp);
151 #endif
152
153
154
155 #endif /* #ifndef INC_FINLEY_MESH */
156

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