/[escript]/temp/finley/src/Assemble_setNormal.c
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Annotation of /temp/finley/src/Assemble_setNormal.c

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Revision 102 - (hide annotations)
Wed Dec 15 07:08:39 2004 UTC (14 years, 10 months ago) by jgs
Original Path: trunk/esys2/finley/src/finleyC/Assemble_setNormal.c
File MIME type: text/plain
File size: 3788 byte(s)
*** empty log message ***

1 jgs 82 /* $Id$ */
2    
3     /**************************************************************/
4    
5     /* assemblage routines: calculates the normal vector at quadrature points on face elements */
6    
7     /**************************************************************/
8    
9     /* Copyrights by ACcESS Australia, 2003,2004 */
10     /* author: gross@access.edu.au */
11     /* Version: $Id$ */
12    
13     /**************************************************************/
14    
15     #include "escript/Data/DataC.h"
16     #include "Finley.h"
17     #include "Assemble.h"
18     #include "NodeFile.h"
19     #include "ElementFile.h"
20     #include "Util.h"
21     #ifdef _OPENMP
22     #include <omp.h>
23     #endif
24    
25     /**************************************************************/
26    
27    
28     void Finley_Assemble_setNormal(Finley_NodeFile* nodes, Finley_ElementFile* elements, escriptDataC* normal) {
29     double *local_X=NULL, *dVdv=NULL,*normal_array;
30     int e,sign,q,node_offset;
31     if (nodes==NULL || elements==NULL) return;
32     int NN=elements->ReferenceElement->Type->numNodes;
33     int NS=elements->ReferenceElement->Type->numShapes;
34     int numDim=nodes->numDim;
35     int numQuad=elements->ReferenceElement->numQuadNodes;
36     int numDim_local=elements->ReferenceElement->Type->numDim;
37    
38     /* set some parameter */
39    
40     if (getFunctionSpaceType(normal)==FINLEY_CONTACT_ELEMENTS_2) {
41     node_offset=NN-NS;
42     sign=-1;
43     } else {
44     node_offset=0;
45     sign=1;
46     }
47     /* check the dimensions of normal */
48 jgs 102 if (! (numDim==numDim_local || numDim-1==numDim_local)) {
49 jgs 82 Finley_ErrorCode=TYPE_ERROR;
50     sprintf(Finley_ErrorMsg,"Cannot calculate normal vector");
51     } else if (! isDataPointShapeEqual(normal,1,&(numDim))) {
52     Finley_ErrorCode=TYPE_ERROR;
53     sprintf(Finley_ErrorMsg,"illegal number of samples of normal Data object");
54     } else if (! numSamplesEqual(normal,numQuad,elements->numElements)) {
55     Finley_ErrorCode=TYPE_ERROR;
56     sprintf(Finley_ErrorMsg,"illegal number of samples of normal Data object");
57     } else if (! isDataPointShapeEqual(normal,1,&(numDim))) {
58     Finley_ErrorCode=TYPE_ERROR;
59     sprintf(Finley_ErrorMsg,"illegal point data shape of normal Data object");
60     } else if (!isExpanded(normal)) {
61     Finley_ErrorCode=TYPE_ERROR;
62     sprintf(Finley_ErrorMsg,"expanded Data object is expected for normal.");
63     }
64    
65     /* now we can start */
66     if (Finley_ErrorCode==NO_ERROR) {
67     #pragma omp parallel private(local_X,dVdv)
68     {
69     local_X=dVdv=NULL;
70     /* allocation of work arrays */
71 jgs 102 local_X=THREAD_MEMALLOC(NS*numDim,double);
72     dVdv=THREAD_MEMALLOC(numQuad*numDim*numDim_local,double);
73 jgs 82 if (!(Finley_checkPtr(local_X) || Finley_checkPtr(dVdv) ) ) {
74     /* open the element loop */
75     #pragma omp for private(e,q,normal_array) schedule(static)
76     for(e=0;e<elements->numElements;e++) {
77     /* gather local coordinates of nodes into local_X: */
78     Finley_Util_Gather_double(NS,&(elements->Nodes[INDEX2(node_offset,e,NN)]),numDim,nodes->Coordinates,local_X);
79     /* calculate dVdv(i,j,q)=local_X(i,n)*DSDv(n,j,q) */
80     Finley_Util_SmallMatMult(numDim,numDim_local*numQuad,dVdv,NS,local_X,elements->ReferenceElement->dSdv);
81     /* get normalized vector: */
82     normal_array=getSampleData(normal,e);
83     Finley_NormalVector(numQuad,numDim,numDim_local,dVdv,normal_array);
84     for (q=0;q<numQuad*numDim;q++) normal_array[q]*=sign;
85     }
86     }
87     THREAD_MEMFREE(local_X);
88     THREAD_MEMFREE(dVdv);
89     }
90     }
91     }
92     /*
93     * $Log$
94 jgs 102 * Revision 1.4 2004/12/15 07:08:32 jgs
95 jgs 97 * *** empty log message ***
96 jgs 82 *
97 jgs 97 *
98 jgs 82 *
99     */

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