/[escript]/trunk/finley/src/Mesh_joinFaces.c
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Contents of /trunk/finley/src/Mesh_joinFaces.c

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Revision 123 - (show annotations)
Fri Jul 8 04:08:13 2005 UTC (14 years, 4 months ago) by jgs
Original Path: trunk/esys2/finley/src/finleyC/Mesh_joinFaces.c
File MIME type: text/plain
File size: 6145 byte(s)
Merge of development branch back to main trunk on 2005-07-08

1 /**************************************************************/
2
3 /* Finley: Mesh */
4
5 /* detects faces in the mesh that match and replaces it by step elements */
6
7 /**************************************************************/
8
9 /* Copyrights by ACcESS Australia 2003 */
10 /* Author: gross@access.edu.au */
11 /* Version: $Id$ */
12
13 /**************************************************************/
14
15 #include "Common.h"
16 #include "Finley.h"
17 #include "Mesh.h"
18
19 /**************************************************************/
20
21 void Finley_Mesh_joinFaces(Finley_Mesh* self,double safety_factor,double tolerance) {
22
23 index_t e0,e1,*elem1=NULL,*elem0=NULL,*elem_mask=NULL,*matching_nodes_in_elem1=NULL;
24 Finley_ElementFile *newFaceElementsFile=NULL,*newContactElementsFile=NULL;
25 dim_t e,i,numPairs;
26 if (self->FaceElements==NULL) return;
27
28 if (self->FaceElements->ReferenceElement->Type->numNodesOnFace<=0) {
29 Finley_ErrorCode=TYPE_ERROR;
30 sprintf(Finley_ErrorMsg,"joining faces cannot be applied to face elements of type %s",self->FaceElements->ReferenceElement->Type->Name);
31 return;
32 }
33 if (self->ContactElements==NULL) {
34 Finley_ErrorCode=TYPE_ERROR;
35 sprintf(Finley_ErrorMsg,"no contact element file present.");
36 return;
37 }
38
39 int NN=self->FaceElements->ReferenceElement->Type->numNodes;
40 int NN_Contact=self->ContactElements->ReferenceElement->Type->numNodes;
41
42 if (2*NN!=NN_Contact) {
43 Finley_ErrorCode=TYPE_ERROR;
44 sprintf(Finley_ErrorMsg,"contact element file for %s cannot hold elements created from face elements %s",
45 self->ContactElements->ReferenceElement->Type->Name,self->FaceElements->ReferenceElement->Type->Name);
46 return;
47 }
48
49 /* allocate work arrays */
50 elem1=TMPMEMALLOC(self->FaceElements->numElements,index_t);
51 elem0=TMPMEMALLOC(self->FaceElements->numElements,index_t);
52 elem_mask=TMPMEMALLOC(self->FaceElements->numElements,index_t);
53 matching_nodes_in_elem1=TMPMEMALLOC(self->FaceElements->numElements*NN,index_t);
54
55 if (!(Finley_checkPtr(elem1) || Finley_checkPtr(elem0) || Finley_checkPtr(elem_mask) || Finley_checkPtr(matching_nodes_in_elem1))) {
56 /* find the matching face elements */
57 Finley_Mesh_findMatchingFaces(self->Nodes,self->FaceElements,safety_factor,tolerance,&numPairs,elem0,elem1,matching_nodes_in_elem1);
58 if (Finley_ErrorCode==NO_ERROR) {
59 /* get a list of the face elements to be kept */
60 #pragma omp parallel for private(e) schedule(static)
61 for(e=0;e<self->FaceElements->numElements;e++) elem_mask[e]=1;
62 for(e=0;e<numPairs;e++) {
63 elem_mask[elem0[e]]=0;
64 elem_mask[elem1[e]]=0;
65 }
66 dim_t new_numFaceElements=0;
67 /* OMP */
68 for(e=0;e<self->FaceElements->numElements;e++) {
69 if (elem_mask[e]>0) {
70 elem_mask[new_numFaceElements]=e;
71 new_numFaceElements++;
72 }
73 }
74 /* allocate new face element and Contact element files */
75 newContactElementsFile=Finley_ElementFile_alloc(self->ContactElements->ReferenceElement->Type->TypeId,self->ContactElements->order);
76 newFaceElementsFile=Finley_ElementFile_alloc(self->FaceElements->ReferenceElement->Type->TypeId,self->FaceElements->order);
77 if (Finley_ErrorCode==NO_ERROR) {
78 Finley_ElementFile_allocTable(newContactElementsFile,numPairs+self->ContactElements->numElements);
79 Finley_ElementFile_allocTable(newFaceElementsFile,new_numFaceElements);
80 }
81 /* copy the old elements over */
82 if (Finley_ErrorCode==NO_ERROR) {
83 /* get the face elements which are still in use:*/
84 Finley_ElementFile_gather(elem_mask,self->FaceElements,newFaceElementsFile);
85 /* get the Contact elements which are still in use:*/
86 Finley_ElementFile_copyTable(0,newContactElementsFile,0,0,self->ContactElements);
87 dim_t c=self->ContactElements->numElements;
88 /* OMP */
89 for (e=0;e<numPairs;e++) {
90 e0=elem0[e];
91 e1=elem1[e];
92 newContactElementsFile->Id[c]=MIN(self->FaceElements->Id[e0],self->FaceElements->Id[e1]);
93 newContactElementsFile->Tag[c]=MIN(self->FaceElements->Tag[e0],self->FaceElements->Tag[e1]);
94 newContactElementsFile->Color[c]=e;
95 for (i=0;i<NN;i++) newContactElementsFile->Nodes[INDEX2(i,c,NN_Contact)]=self->FaceElements->Nodes[INDEX2(i,e0,NN)];
96 for (i=0;i<NN;i++) newContactElementsFile->Nodes[INDEX2(i+NN,c,NN_Contact)]=matching_nodes_in_elem1[INDEX2(i,e,NN)];
97 c++;
98 }
99 newContactElementsFile->minColor=0;
100 newContactElementsFile->maxColor=numPairs-1;
101 }
102 /* set new face and Contact elements */
103 if (Finley_ErrorCode==NO_ERROR) {
104
105 Finley_ElementFile_dealloc(self->FaceElements);
106 self->FaceElements=newFaceElementsFile;
107 Finley_ElementFile_prepare(&(self->FaceElements),self->Nodes->numNodes,self->Nodes->degreeOfFreedom);
108
109 Finley_ElementFile_dealloc(self->ContactElements);
110 self->ContactElements=newContactElementsFile;
111 Finley_ElementFile_prepare(&(self->ContactElements),self->Nodes->numNodes,self->Nodes->degreeOfFreedom);
112
113 Finley_Mesh_prepareNodes(self);
114
115 } else {
116 Finley_ElementFile_dealloc(newFaceElementsFile);
117 Finley_ElementFile_dealloc(newContactElementsFile);
118 }
119 }
120 }
121 TMPMEMFREE(elem1);
122 TMPMEMFREE(elem0);
123 TMPMEMFREE(matching_nodes_in_elem1);
124 TMPMEMFREE(elem_mask);
125 }
126
127 /*
128 * $Log$
129 * Revision 1.5 2005/07/08 04:07:52 jgs
130 * Merge of development branch back to main trunk on 2005-07-08
131 *
132 * Revision 1.4 2004/12/15 07:08:33 jgs
133 * *** empty log message ***
134 * Revision 1.1.1.1.2.2 2005/06/29 02:34:52 gross
135 * some changes towards 64 integers in finley
136 *
137 * Revision 1.1.1.1.2.1 2004/11/24 01:37:14 gross
138 * some changes dealing with the integer overflow in memory allocation. Finley solves 4M unknowns now
139 *
140 *
141 *
142 */
143

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