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

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Revision 1645 - (show annotations)
Tue Jul 15 05:26:38 2008 UTC (11 years, 1 month ago) by phornby
File MIME type: text/plain
File size: 14865 byte(s)
unused vars.
1
2 /* $Id$ */
3
4 /*******************************************************
5 *
6 * Copyright 2003-2007 by ACceSS MNRF
7 * Copyright 2007 by University of Queensland
8 *
9 * http://esscc.uq.edu.au
10 * Primary Business: Queensland, Australia
11 * Licensed under the Open Software License version 3.0
12 * http://www.opensource.org/licenses/osl-3.0.php
13 *
14 *******************************************************/
15
16 /**************************************************************/
17
18 /* assembles the mass matrix in lumped form */
19
20 /* The coefficient D has to be defined on the integration points or not present. */
21
22 /* lumpedMat has to be initialized before the routine is called. */
23
24 /**************************************************************/
25
26 #include "Assemble.h"
27 #include "Util.h"
28 #ifdef _OPENMP
29 #include <omp.h>
30 #endif
31
32
33 /* Disabled until the tests pass */
34 /* #define NEW_LUMPING */ /* */
35
36 /**************************************************************/
37
38 void Finley_Assemble_LumpedSystem(Finley_NodeFile* nodes,Finley_ElementFile* elements, escriptDataC* lumpedMat, escriptDataC* D)
39 {
40
41 bool_t reducedIntegrationOrder=FALSE, expandedD;
42 char error_msg[LenErrorMsg_MAX];
43 Assemble_Parameters p;
44 dim_t dimensions[ESCRIPT_MAX_DATA_RANK], k, e, len_EM_lumpedMat, q, s;
45 type_t funcspace;
46 index_t color,*row_index=NULL;
47 double *S=NULL, *EM_lumpedMat=NULL, *Vol=NULL, *D_p=NULL, *lumpedMat_p=NULL;
48 register double rtmp;
49 size_t len_EM_lumpedMat_size;
50
51 #ifdef NEW_LUMPING
52 register double m_t, diagS;
53 #endif
54
55 Finley_resetError();
56
57 if (nodes==NULL || elements==NULL) return;
58 if (isEmpty(lumpedMat) || isEmpty(D)) return;
59 if (isEmpty(lumpedMat) && !isEmpty(D)) {
60 Finley_setError(TYPE_ERROR,"Assemble_LumpedSystem: coefficients are non-zero but no lumped matrix is given.");
61 return;
62 }
63 funcspace=getFunctionSpaceType(D);
64 /* check if all function spaces are the same */
65 if (funcspace==FINLEY_ELEMENTS) {
66 reducedIntegrationOrder=FALSE;
67 } else if (funcspace==FINLEY_FACE_ELEMENTS) {
68 reducedIntegrationOrder=FALSE;
69 } else if (funcspace==FINLEY_REDUCED_ELEMENTS) {
70 reducedIntegrationOrder=TRUE;
71 } else if (funcspace==FINLEY_REDUCED_FACE_ELEMENTS) {
72 reducedIntegrationOrder=TRUE;
73 } else {
74 Finley_setError(TYPE_ERROR,"Assemble_LumpedSystem: assemblage failed because of illegal function space.");
75 }
76 if (! Finley_noError()) return;
77
78 /* set all parameters in p*/
79 Assemble_getAssembleParameters(nodes,elements,NULL,lumpedMat, reducedIntegrationOrder, &p);
80 if (! Finley_noError()) return;
81
82 /* check if all function spaces are the same */
83
84 if (! numSamplesEqual(D,p.numQuad,elements->numElements) ) {
85 sprintf(error_msg,"Assemble_LumpedSystem: sample points of coefficient D don't match (%d,%d)",p.numQuad,elements->numElements);
86 Finley_setError(TYPE_ERROR,error_msg);
87 }
88
89 /* check the dimensions: */
90
91 if (p.numEqu==1) {
92 if (!isEmpty(D)) {
93 if (!isDataPointShapeEqual(D,0,dimensions)) {
94 Finley_setError(TYPE_ERROR,"Assemble_LumpedSystem: coefficient D, rank 0 expected.");
95 }
96
97 }
98 } else {
99 if (!isEmpty(D)) {
100 dimensions[0]=p.numEqu;
101 if (!isDataPointShapeEqual(D,1,dimensions)) {
102 sprintf(error_msg,"Assemble_LumpedSystem: coefficient D, expected shape (%d,)",dimensions[0]);
103 Finley_setError(TYPE_ERROR,error_msg);
104 }
105 }
106 }
107
108 if (Finley_noError()) {
109 lumpedMat_p=getSampleData(lumpedMat,0);
110 len_EM_lumpedMat=p.row_NN*p.numEqu;
111 len_EM_lumpedMat_size=len_EM_lumpedMat*sizeof(double);
112 expandedD=isExpanded(D);
113 S=p.row_jac->ReferenceElement->S;
114
115 #pragma omp parallel private(color, EM_lumpedMat, row_index, Vol, D_p, s, q, k, rtmp, m_t, diagS)
116 {
117 EM_lumpedMat=THREAD_MEMALLOC(len_EM_lumpedMat,double);
118 row_index=THREAD_MEMALLOC(p.row_NN,index_t);
119 if ( !Finley_checkPtr(EM_lumpedMat) && !Finley_checkPtr(row_index) ) {
120 if (p.numEqu == 1) {
121 if (expandedD) {
122 for (color=elements->minColor;color<=elements->maxColor;color++) {
123 /* open loop over all elements: */
124 #pragma omp for private(e) schedule(static)
125 for(e=0;e<elements->numElements;e++){
126 if (elements->Color[e]==color) {
127 Vol=&(p.row_jac->volume[INDEX2(0,e,p.numQuad)]);
128 memset(EM_lumpedMat,0,len_EM_lumpedMat_size);
129 D_p=getSampleData(D,e);
130 #ifdef NEW_LUMPING /* HRZ lumping */
131 /*
132 * Number of PDEs: 1
133 * D_p varies over element: True
134 */
135 m_t=0; /* mass of the element: m_t */
136 for (q=0;q<p.numQuad;q++) {
137 m_t+=Vol[q]*D_p[q];
138 }
139 diagS=0; /* diagonal sum: S */
140 for (s=0;s<p.row_NS;s++) {
141 rtmp=0;
142 for (q=0;q<p.numQuad;q++) {
143 rtmp+=Vol[q]*D_p[q]*S[INDEX2(s,q,p.row_NS)]*S[INDEX2(s,q,p.row_NS)];
144 }
145 EM_lumpedMat[INDEX2(0,s,p.numEqu)]+=rtmp;
146 diagS+=EM_lumpedMat[INDEX2(0,s,p.numEqu)];
147 }
148 /* rescale diagonals by m_t/diagS to ensure consistent mass over element */
149 for (s=0;s<p.row_NS;s++) {
150 EM_lumpedMat[INDEX2(0,s,p.numEqu)]*=m_t/diagS;
151 }
152 #else /* row-sum lumping */
153 for (s=0;s<p.row_NS;s++) {
154 rtmp=0;
155 for (q=0;q<p.numQuad;q++) rtmp+=Vol[q]*S[INDEX2(s,q,p.row_NS)]*D_p[q];
156 EM_lumpedMat[INDEX2(0,s,p.numEqu)]+=rtmp;
157 }
158 #endif
159 for (q=0;q<p.row_NN;q++) row_index[q]=p.row_DOF[elements->Nodes[INDEX2(p.row_node[q],e,p.NN)]];
160 Finley_Util_AddScatter(p.row_NN,row_index,p.numEqu,EM_lumpedMat,lumpedMat_p, p.row_DOF_UpperBound);
161 } /* end color check */
162 } /* end element loop */
163 } /* end color loop */
164 } else {
165 for (color=elements->minColor;color<=elements->maxColor;color++) {
166 /* open loop over all elements: */
167 #pragma omp for private(e) schedule(static)
168 for(e=0;e<elements->numElements;e++){
169 if (elements->Color[e]==color) {
170 Vol=&(p.row_jac->volume[INDEX2(0,e,p.numQuad)]);
171 memset(EM_lumpedMat,0,len_EM_lumpedMat_size);
172 D_p=getSampleData(D,e);
173 #ifdef NEW_LUMPING /* HRZ lumping */
174 /*
175 * Number of PDEs: 1
176 * D_p varies over element: False
177 */
178 m_t=0; /* mass of the element: m_t */
179 for (q=0;q<p.numQuad;q++) {
180 m_t+=Vol[q]*D_p[0];
181 }
182 diagS=0; /* diagonal sum: S */
183 for (s=0;s<p.row_NS;s++) {
184 rtmp=0;
185 for (q=0;q<p.numQuad;q++) {
186 rtmp+=Vol[q]*D_p[0]*S[INDEX2(s,q,p.row_NS)]*S[INDEX2(s,q,p.row_NS)];
187 }
188 EM_lumpedMat[INDEX2(0,s,p.numEqu)]+=rtmp;
189 diagS+=EM_lumpedMat[INDEX2(0,s,p.numEqu)];
190 }
191 /* rescale diagonals by m_t/diagS to ensure consistent mass over element */
192 for (s=0;s<p.row_NS;s++) {
193 EM_lumpedMat[INDEX2(0,s,p.numEqu)]*=m_t/diagS;
194 }
195 #else /* row-sum lumping */
196 for (s=0;s<p.row_NS;s++) {
197 rtmp=0;
198 for (q=0;q<p.numQuad;q++) rtmp+=Vol[q]*S[INDEX2(s,q,p.row_NS)];
199 EM_lumpedMat[INDEX2(0,s,p.numEqu)]+=rtmp*D_p[0];
200 }
201 #endif
202 for (q=0;q<p.row_NN;q++) row_index[q]=p.row_DOF[elements->Nodes[INDEX2(p.row_node[q],e,p.NN)]];
203 Finley_Util_AddScatter(p.row_NN,row_index,p.numEqu,EM_lumpedMat,lumpedMat_p, p.row_DOF_UpperBound);
204 } /* end color check */
205 } /* end element loop */
206 } /* end color loop */
207 }
208 } else {
209 if (expandedD) {
210 for (color=elements->minColor;color<=elements->maxColor;color++) {
211 /* open loop over all elements: */
212 #pragma omp for private(e) schedule(static)
213 for(e=0;e<elements->numElements;e++){
214 if (elements->Color[e]==color) {
215 Vol=&(p.row_jac->volume[INDEX2(0,e,p.numQuad)]);
216 memset(EM_lumpedMat,0,len_EM_lumpedMat_size);
217 D_p=getSampleData(D,e);
218 #ifdef NEW_LUMPING /* HRZ lumping */
219 /*
220 * Number of PDEs: Multiple
221 * D_p varies over element: True
222 */
223 for (k=0;k<p.numEqu;k++) {
224 m_t=0; /* mass of the element: m_t */
225 for (q=0;q<p.numQuad;q++) {
226 m_t+=Vol[q]*D_p[INDEX2(k,q,p.numEqu)];
227 }
228 diagS=0; /* diagonal sum: S */
229 for (s=0;s<p.row_NS;s++) {
230 rtmp=0;
231 for (q=0;q<p.numQuad;q++) {
232 rtmp+=Vol[q]*D_p[INDEX2(k,q,p.numEqu)]*S[INDEX2(s,q,p.row_NS)]*S[INDEX2(s,q,p.row_NS)];
233 }
234 EM_lumpedMat[INDEX2(k,s,p.numEqu)]+=rtmp;
235 diagS+=EM_lumpedMat[INDEX2(k,s,p.numEqu)];
236 }
237 /* rescale diagonals by m_t/diagS to ensure consistent mass over element */
238 for (s=0;s<p.row_NS;s++) {
239 EM_lumpedMat[INDEX2(k,s,p.numEqu)]*=m_t/diagS;
240 }
241 }
242 #else /* row-sum lumping */
243 for (s=0;s<p.row_NS;s++) {
244 for (k=0;k<p.numEqu;k++) {
245 rtmp=0.;
246 for (q=0;q<p.numQuad;q++) rtmp+=Vol[q]*S[INDEX2(s,q,p.row_NS)]*D_p[INDEX2(k,q,p.numEqu)];
247 EM_lumpedMat[INDEX2(k,s,p.numEqu)]+=rtmp;
248 }
249 }
250 #endif
251 for (q=0;q<p.row_NN;q++) row_index[q]=p.row_DOF[elements->Nodes[INDEX2(p.row_node[q],e,p.NN)]];
252 Finley_Util_AddScatter(p.row_NN,row_index,p.numEqu,EM_lumpedMat,lumpedMat_p, p.row_DOF_UpperBound);
253 } /* end color check */
254 } /* end element loop */
255 } /* end color loop */
256 } else {
257 /* open loop over all elements: */
258 for (color=elements->minColor;color<=elements->maxColor;color++) {
259 #pragma omp for private(e) schedule(static)
260 for(e=0;e<elements->numElements;e++){
261 if (elements->Color[e]==color) {
262 Vol=&(p.row_jac->volume[INDEX2(0,e,p.numQuad)]);
263 memset(EM_lumpedMat,0,len_EM_lumpedMat_size);
264 D_p=getSampleData(D,e);
265 #ifdef NEW_LUMPING /* HRZ lumping */
266 /*
267 * Number of PDEs: Multiple
268 * D_p varies over element: False
269 */
270 for (k=0;k<p.numEqu;k++) {
271 m_t=0; /* mass of the element: m_t */
272 for (q=0;q<p.numQuad;q++) {
273 m_t+=Vol[q]*D_p[k];
274 }
275 diagS=0; /* diagonal sum: S */
276 for (s=0;s<p.row_NS;s++) {
277 rtmp=0;
278 for (q=0;q<p.numQuad;q++) {
279 rtmp+=Vol[q]*D_p[k]*S[INDEX2(s,q,p.row_NS)]*S[INDEX2(s,q,p.row_NS)];
280 }
281 EM_lumpedMat[INDEX2(k,s,p.numEqu)]+=rtmp;
282 diagS+=EM_lumpedMat[INDEX2(k,s,p.numEqu)];
283 }
284 /* rescale diagonals by m_t/diagS to ensure consistent mass over element */
285 for (s=0;s<p.row_NS;s++) {
286 EM_lumpedMat[INDEX2(k,s,p.numEqu)]*=m_t/diagS;
287 }
288 }
289 #else /* row-sum lumping */
290 for (s=0;s<p.row_NS;s++) {
291 rtmp=0;
292 for (q=0;q<p.numQuad;q++) rtmp+=Vol[q]*S[INDEX2(s,q,p.row_NS)];
293 for (k=0;k<p.numEqu;k++) EM_lumpedMat[INDEX2(k,s,p.numEqu)]+=rtmp*D_p[k];
294 }
295 #endif
296 for (q=0;q<p.row_NN;q++) row_index[q]=p.row_DOF[elements->Nodes[INDEX2(p.row_node[q],e,p.NN)]];
297 Finley_Util_AddScatter(p.row_NN,row_index,p.numEqu,EM_lumpedMat,lumpedMat_p, p.row_DOF_UpperBound);
298 } /* end color check */
299 } /* end element loop */
300 } /* end color loop */
301 }
302 }
303 } /* end of pointer check */
304 THREAD_MEMFREE(EM_lumpedMat);
305 THREAD_MEMFREE(row_index);
306 } /* end parallel region */
307 }
308 }

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