/[escript]/trunk/finley/src/Assemble_PDE_Single2_C.c
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Contents of /trunk/finley/src/Assemble_PDE_Single2_C.c

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Revision 1811 - (show annotations)
Thu Sep 25 23:11:13 2008 UTC (10 years, 11 months ago) by ksteube
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Copyright updated in all files

1
2 /*******************************************************
3 *
4 * Copyright (c) 2003-2008 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
15 /**************************************************************/
16
17 /* assembles a single PDEs into the stiffness matrix S right hand side F */
18
19 /* D u_m and Y */
20
21 /* in a 3D domain. The shape functions for test and solution must be identical */
22 /* and 2* row_NS == row_NN (contact elements) */
23
24 /* Shape of the coefficients: */
25
26 /* D = scalar */
27 /* Y = scalar */
28
29
30 /**************************************************************/
31
32
33 #include "Assemble.h"
34 #include "Util.h"
35 #ifdef _OPENMP
36 #include <omp.h>
37 #endif
38
39
40 /**************************************************************/
41
42 void Finley_Assemble_PDE_Single2_C(Assemble_Parameters p, Finley_ElementFile* elements,
43 Paso_SystemMatrix* Mat, escriptDataC* F, escriptDataC* D, escriptDataC* Y) {
44
45 index_t color;
46 dim_t e;
47 double *EM_S, *EM_F, *Vol, *D_p, *Y_p;
48 index_t *row_index;
49 register dim_t q, s,r;
50 register double rtmp, rtmp_D;
51 bool_t add_EM_F, add_EM_S;
52
53 bool_t extendedD=isExpanded(D);
54 bool_t extendedY=isExpanded(Y);
55 double *F_p=getSampleData(F,0);
56 double *S=p.row_jac->ReferenceElement->S;
57
58
59 #pragma omp parallel private(color,EM_S, EM_F, Vol, D_p, Y_p,row_index,q, s,r,rtmp, rtmp_D,add_EM_F, add_EM_S)
60 {
61 EM_S=THREAD_MEMALLOC(p.row_NN*p.col_NN,double);
62 EM_F=THREAD_MEMALLOC(p.row_NN,double);
63 row_index=THREAD_MEMALLOC(p.row_NN,index_t);
64
65 if (!Finley_checkPtr(EM_S) && !Finley_checkPtr(EM_F) && !Finley_checkPtr(row_index) ) {
66
67 for (color=elements->minColor;color<=elements->maxColor;color++) {
68 /* open loop over all elements: */
69 #pragma omp for private(e) schedule(static)
70 for(e=0;e<elements->numElements;e++){
71 if (elements->Color[e]==color) {
72 Vol=&(p.row_jac->volume[INDEX2(0,e,p.numQuad)]);
73 add_EM_F=FALSE;
74 add_EM_S=FALSE;
75 /************************************************************* */
76 /* process D */
77 /**************************************************************/
78 D_p=getSampleData(D,e);
79 if (NULL!=D_p) {
80 add_EM_S=TRUE;
81 if (extendedD) {
82 for (s=0;s<p.row_NS;s++) {
83 for (r=0;r<p.col_NS;r++) {
84 rtmp=0;
85 for (q=0;q<p.numQuad;q++) rtmp+=Vol[q]*S[INDEX2(s,q,p.row_NS)]*D_p[q]*S[INDEX2(r,q,p.row_NS)];
86 EM_S[INDEX4(0,0,s ,r ,p.numEqu,p.numComp,p.row_NN)]= rtmp;
87 EM_S[INDEX4(0,0,s ,r+p.col_NS,p.numEqu,p.numComp,p.row_NN)]=-rtmp;
88 EM_S[INDEX4(0,0,s+p.row_NS,r ,p.numEqu,p.numComp,p.row_NN)]=-rtmp;
89 EM_S[INDEX4(0,0,s+p.row_NS,r+p.col_NS,p.numEqu,p.numComp,p.row_NN)]= rtmp;
90 }
91 }
92 } else {
93 for (s=0;s<p.row_NS;s++) {
94 for (r=0;r<p.col_NS;r++) {
95 rtmp=0;
96 for (q=0;q<p.numQuad;q++) rtmp+=Vol[q]*S[INDEX2(s,q,p.row_NS)]*S[INDEX2(r,q,p.row_NS)];
97 rtmp_D=rtmp*D_p[0];
98 EM_S[INDEX4(0,0,s ,r ,p.numEqu,p.numComp,p.row_NN)]= rtmp_D;
99 EM_S[INDEX4(0,0,s ,r+p.col_NS,p.numEqu,p.numComp,p.row_NN)]=-rtmp_D;
100 EM_S[INDEX4(0,0,s+p.row_NS,r ,p.numEqu,p.numComp,p.row_NN)]=-rtmp_D;
101 EM_S[INDEX4(0,0,s+p.row_NS,r+p.col_NS,p.numEqu,p.numComp,p.row_NN)]= rtmp_D;
102 }
103 }
104 }
105 }
106 /**************************************************************/
107 /* process Y: */
108 /**************************************************************/
109 Y_p=getSampleData(Y,e);
110 if (NULL!=Y_p) {
111 add_EM_F=TRUE;
112 if (extendedY) {
113 for (s=0;s<p.row_NS;s++) {
114 rtmp=0;
115 for (q=0;q<p.numQuad;q++) rtmp+=Vol[q]*S[INDEX2(s,q,p.row_NS)]*Y_p[q];
116 EM_F[INDEX2(0,s ,p.numEqu)]=-rtmp;
117 EM_F[INDEX2(0,s+p.row_NS,p.numEqu)]= rtmp;
118 }
119 } else {
120 for (s=0;s<p.row_NS;s++) {
121 rtmp=0;
122 for (q=0;q<p.numQuad;q++) rtmp+=Vol[q]*S[INDEX2(s,q,p.row_NS)];
123 rtmp_D=rtmp*Y_p[0];
124 EM_F[INDEX2(0,s ,p.numEqu)]=-rtmp_D;
125 EM_F[INDEX2(0,s+p.row_NS,p.numEqu)]= rtmp_D;
126 }
127 }
128 }
129 /***********************************************************************************************/
130 /* add the element matrices onto the matrix and right hand side */
131 /***********************************************************************************************/
132 for (q=0;q<p.row_NN;q++) row_index[q]=p.row_DOF[elements->Nodes[INDEX2(p.row_node[q],e,p.row_NN)]];
133
134 if (add_EM_F) Finley_Util_AddScatter(p.row_NN,row_index,p.numEqu,EM_F,F_p, p.row_DOF_UpperBound);
135 if (add_EM_S) Finley_Assemble_addToSystemMatrix(Mat,p.row_NN,row_index,p.numEqu,p.col_NN,row_index,p.numComp,EM_S);
136
137 } /* end color check */
138 } /* end element loop */
139 } /* end color loop */
140
141 THREAD_MEMFREE(EM_S);
142 THREAD_MEMFREE(EM_F);
143 THREAD_MEMFREE(row_index);
144
145 } /* end of pointer check */
146 } /* end parallel region */
147 }
148 /*
149 * $Log$
150 */

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