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

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Revision 2991 - (hide annotations)
Mon Mar 22 05:42:48 2010 UTC (9 years ago) by gross
File MIME type: text/plain
File size: 14724 byte(s)
isub as private added
1 jgs 82
2 ksteube 1312 /*******************************************************
3 ksteube 1811 *
4 jfenwick 2881 * Copyright (c) 2003-2010 by University of Queensland
5 ksteube 1811 * 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 ksteube 1312
14 ksteube 1811
15 jgs 82 /**************************************************************/
16    
17 gross 1204 /* assembles the mass matrix in lumped form */
18 jgs 82
19 gross 1204 /* The coefficient D has to be defined on the integration points or not present. */
20 jgs 82
21 gross 1204 /* lumpedMat has to be initialized before the routine is called. */
22 jgs 82
23     /**************************************************************/
24    
25     #include "Assemble.h"
26     #include "Util.h"
27     #ifdef _OPENMP
28     #include <omp.h>
29     #endif
30    
31    
32 ksteube 1221 /* Disabled until the tests pass */
33 gross 2989 /* #define NEW_LUMPING */
34 btully 1220
35 jgs 82 /**************************************************************/
36    
37 gross 1204 void Finley_Assemble_LumpedSystem(Finley_NodeFile* nodes,Finley_ElementFile* elements, escriptDataC* lumpedMat, escriptDataC* D)
38     {
39 jgs 82
40 gross 1204 bool_t reducedIntegrationOrder=FALSE, expandedD;
41 jgs 150 char error_msg[LenErrorMsg_MAX];
42 gross 798 Assemble_Parameters p;
43 gross 2748 dim_t dimensions[ESCRIPT_MAX_DATA_RANK], k, e, len_EM_lumpedMat, q, s, isub;
44 gross 1028 type_t funcspace;
45 gross 1204 index_t color,*row_index=NULL;
46 jfenwick 2271 __const double *D_p=NULL;
47     double *S=NULL, *EM_lumpedMat=NULL, *Vol=NULL, *lumpedMat_p=NULL;
48 phornby 1628 register double rtmp;
49 gross 1204 size_t len_EM_lumpedMat_size;
50 caltinay 2750 #ifdef NEW_LUMPING
51 gross 2748 register double m_t=0., diagS=0.;
52 caltinay 2750 #endif
53 gross 2989
54 jgs 150 Finley_resetError();
55 jgs 82
56     if (nodes==NULL || elements==NULL) return;
57 gross 1204 if (isEmpty(lumpedMat) || isEmpty(D)) return;
58     if (isEmpty(lumpedMat) && !isEmpty(D)) {
59     Finley_setError(TYPE_ERROR,"Assemble_LumpedSystem: coefficients are non-zero but no lumped matrix is given.");
60     return;
61 gross 798 }
62 gross 1204 funcspace=getFunctionSpaceType(D);
63 jgs 82 /* check if all function spaces are the same */
64 gross 798 if (funcspace==FINLEY_ELEMENTS) {
65     reducedIntegrationOrder=FALSE;
66     } else if (funcspace==FINLEY_FACE_ELEMENTS) {
67     reducedIntegrationOrder=FALSE;
68 gross 1072 } else if (funcspace==FINLEY_REDUCED_ELEMENTS) {
69     reducedIntegrationOrder=TRUE;
70     } else if (funcspace==FINLEY_REDUCED_FACE_ELEMENTS) {
71     reducedIntegrationOrder=TRUE;
72 gross 798 } else {
73 gross 1204 Finley_setError(TYPE_ERROR,"Assemble_LumpedSystem: assemblage failed because of illegal function space.");
74 gross 798 }
75     if (! Finley_noError()) return;
76 jgs 82
77 gross 798 /* set all parameters in p*/
78 gross 1204 Assemble_getAssembleParameters(nodes,elements,NULL,lumpedMat, reducedIntegrationOrder, &p);
79 gross 798 if (! Finley_noError()) return;
80 gross 2989
81 gross 798 /* check if all function spaces are the same */
82 gross 2989 if (! numSamplesEqual(D,p.numQuadTotal,elements->numElements) ) {
83 gross 2748 sprintf(error_msg,"Assemble_LumpedSystem: sample points of coefficient D don't match (%d,%d)",p.numQuadSub,elements->numElements);
84 jgs 150 Finley_setError(TYPE_ERROR,error_msg);
85 jgs 82 }
86    
87     /* check the dimensions: */
88 gross 1204 if (p.numEqu==1) {
89 jgs 82 if (!isEmpty(D)) {
90     if (!isDataPointShapeEqual(D,0,dimensions)) {
91 gross 1204 Finley_setError(TYPE_ERROR,"Assemble_LumpedSystem: coefficient D, rank 0 expected.");
92 jgs 82 }
93 gross 1204
94 jgs 82 }
95     } else {
96     if (!isEmpty(D)) {
97     dimensions[0]=p.numEqu;
98 gross 1204 if (!isDataPointShapeEqual(D,1,dimensions)) {
99     sprintf(error_msg,"Assemble_LumpedSystem: coefficient D, expected shape (%d,)",dimensions[0]);
100 jgs 150 Finley_setError(TYPE_ERROR,error_msg);
101 jgs 82 }
102     }
103     }
104 jgs 150 if (Finley_noError()) {
105 jfenwick 2271 requireWrite(lumpedMat);
106     lumpedMat_p=getSampleDataRW(lumpedMat,0);
107 gross 2748 len_EM_lumpedMat=p.row_numShapesTotal*p.numEqu;
108 gross 1204 len_EM_lumpedMat_size=len_EM_lumpedMat*sizeof(double);
109 gross 2748
110 gross 1204 expandedD=isExpanded(D);
111 gross 2748 S=p.row_jac->BasisFunctions->S;
112 gross 2989
113 caltinay 2750 #ifdef NEW_LUMPING
114 gross 2991 #pragma omp parallel private(color, EM_lumpedMat, row_index, Vol, D_p, s, q, k, rtmp, diagS, m_t, isub)
115 caltinay 2750 #else
116 gross 2991 #pragma omp parallel private(color, EM_lumpedMat, row_index, Vol, D_p, s, q, k, rtmp, isub)
117 caltinay 2750 #endif
118 gross 1204 {
119     EM_lumpedMat=THREAD_MEMALLOC(len_EM_lumpedMat,double);
120 gross 2748 row_index=THREAD_MEMALLOC(p.row_numShapesTotal,index_t);
121 gross 1204 if ( !Finley_checkPtr(EM_lumpedMat) && !Finley_checkPtr(row_index) ) {
122 gross 2988 if (p.numEqu == 1) { /* single equation */
123     if (expandedD) { /* with expanded D */
124 gross 1204 for (color=elements->minColor;color<=elements->maxColor;color++) {
125     /* open loop over all elements: */
126     #pragma omp for private(e) schedule(static)
127 gross 2988 for(e=0;e<elements->numElements;e++){
128     if (elements->Color[e]==color) {
129 gross 2748 for (isub=0; isub<p.numSub; isub++) {
130 gross 2989 Vol=&(p.row_jac->volume[INDEX3(0,isub,e, p.numQuadSub,p.numSub)]);
131 jfenwick 2770 D_p=getSampleDataRO(D,e);
132 gross 2988 #ifdef NEW_LUMPING /* HRZ lumping */
133    
134 gross 2748 m_t=0; /* mass of the element: m_t */
135     for (q=0;q<p.numQuadSub;q++) m_t+=Vol[q]*D_p[INDEX2(q, isub,p.numQuadSub) ];
136 gross 2988
137 gross 2748 diagS=0; /* diagonal sum: S */
138     for (s=0;s<p.row_numShapes;s++) {
139     rtmp=0;
140     for (q=0;q<p.numQuadSub;q++) rtmp+=Vol[q]*D_p[INDEX2(q, isub,p.numQuadSub)]*S[INDEX2(s,q,p.row_numShapes)]*S[INDEX2(s,q,p.row_numShapes)];
141     EM_lumpedMat[INDEX2(0,s,p.numEqu)]=rtmp;
142     diagS+=rtmp;
143     }
144     /* rescale diagonals by m_t/diagS to ensure consistent mass over element */
145 gross 2988 rtmp=m_t/diagS;
146 gross 2748 for (s=0;s<p.row_numShapes;s++) EM_lumpedMat[INDEX2(0,s,p.numEqu)]*=rtmp;
147    
148     #else /* row-sum lumping */
149     for (s=0;s<p.row_numShapes;s++) {
150     rtmp=0;
151     for (q=0;q<p.numQuadSub;q++) rtmp+=Vol[q]*S[INDEX2(s,q,p.row_numShapes)]*D_p[INDEX2(q, isub,p.numQuadSub)];
152 gross 2989 EM_lumpedMat[INDEX2(0,s,p.numEqu)]=rtmp;
153 gross 2748 }
154 gross 2989
155 gross 2748 #endif
156     for (q=0;q<p.row_numShapesTotal;q++) row_index[q]=p.row_DOF[elements->Nodes[INDEX2(p.row_node[INDEX2(q,isub,p.row_numShapesTotal)],e,p.NN)]];
157     Finley_Util_AddScatter(p.row_numShapesTotal,row_index,p.numEqu,EM_lumpedMat,lumpedMat_p, p.row_DOF_UpperBound);
158     } /* end of isub loop */
159 gross 2988 } /* end color check */
160 gross 1204 } /* end element loop */
161     } /* end color loop */
162 gross 2988 } else { /* with constant D */
163 gross 2990
164 gross 1204 for (color=elements->minColor;color<=elements->maxColor;color++) {
165 gross 2748 /* open loop over all elements: */
166     #pragma omp for private(e) schedule(static)
167     for(e=0;e<elements->numElements;e++){
168 gross 2988 if (elements->Color[e]==color) {
169 gross 2748 for (isub=0; isub<p.numSub; isub++) {
170 gross 2988 Vol=&(p.row_jac->volume[INDEX3(0,isub,e, p.numQuadSub,p.numSub)]);
171 jfenwick 2770 D_p=getSampleDataRO(D,e);
172 gross 2988 #ifdef NEW_LUMPING /* HRZ lumping */
173 gross 2748 m_t=0; /* mass of the element: m_t */
174     for (q=0;q<p.numQuadSub;q++) m_t+=Vol[q];
175     diagS=0; /* diagonal sum: S */
176     for (s=0;s<p.row_numShapes;s++) {
177     rtmp=0;
178     for (q=0;q<p.numQuadSub;q++) rtmp+=Vol[q]*S[INDEX2(s,q,p.row_numShapes)]*S[INDEX2(s,q,p.row_numShapes)];
179     EM_lumpedMat[INDEX2(0,s,p.numEqu)]=rtmp;
180     diagS+=rtmp;
181     }
182     /* rescale diagonals by m_t/diagS to ensure consistent mass over element */
183 gross 2988 rtmp=m_t/diagS*D_p[0];
184 gross 2748 for (s=0;s<p.row_numShapes;s++) EM_lumpedMat[INDEX2(0,s,p.numEqu)]*=rtmp;
185     #else /* row-sum lumping */
186     for (s=0;s<p.row_numShapes;s++) {
187     rtmp=0;
188     for (q=0;q<p.numQuadSub;q++) rtmp+=Vol[q]*S[INDEX2(s,q,p.row_numShapes)];
189 gross 2988 EM_lumpedMat[INDEX2(0,s,p.numEqu)]=rtmp*D_p[0];
190 gross 2748 }
191     #endif
192     for (q=0;q<p.row_numShapesTotal;q++) row_index[q]=p.row_DOF[elements->Nodes[INDEX2(p.row_node[INDEX2(q,isub,p.row_numShapesTotal)],e,p.NN)]];
193     Finley_Util_AddScatter(p.row_numShapesTotal,row_index,p.numEqu,EM_lumpedMat,lumpedMat_p, p.row_DOF_UpperBound);
194     } /* end of isub loop */
195     } /* end color check */
196 gross 1204 } /* end element loop */
197 gross 2748 } /* end color loop */
198    
199 gross 1204 }
200 gross 2988 } else { /* system of equation */
201     if (expandedD) { /* with expanded D */
202 gross 1204 for (color=elements->minColor;color<=elements->maxColor;color++) {
203     /* open loop over all elements: */
204     #pragma omp for private(e) schedule(static)
205     for(e=0;e<elements->numElements;e++){
206     if (elements->Color[e]==color) {
207 gross 2988 for (isub=0; isub<p.numSub; isub++) {
208 gross 2748 Vol=&(p.row_jac->volume[INDEX3(0,isub,e, p.numQuadSub,p.numSub)]);
209 gross 2988 D_p=getSampleDataRO(D,e);
210    
211 gross 2748 #ifdef NEW_LUMPING /* HRZ lumping */
212     for (k=0;k<p.numEqu;k++) {
213     m_t=0; /* mass of the element: m_t */
214     for (q=0;q<p.numQuadSub;q++) m_t+=Vol[q]*D_p[INDEX3(k,q,isub,p.numEqu,p.numQuadSub)];
215    
216     diagS=0; /* diagonal sum: S */
217     for (s=0;s<p.row_numShapes;s++) {
218     rtmp=0;
219     for (q=0;q<p.numQuadSub;q++) rtmp+=Vol[q]*D_p[INDEX3(k,q,isub,p.numEqu,p.numQuadSub)]*S[INDEX2(s,q,p.row_numShapes)]*S[INDEX2(s,q,p.row_numShapes)];
220     EM_lumpedMat[INDEX2(k,s,p.numEqu)]=rtmp;
221     diagS+=rtmp;
222 gross 2988 }
223     /* rescale diagonals by m_t/diagS to ensure consistent mass over element */
224     rtmp=m_t/diagS;
225     for (s=0;s<p.row_numShapes;s++) EM_lumpedMat[INDEX2(k,s,p.numEqu)]*=rtmp;
226     }
227     #else /* row-sum lumping */
228     for (s=0;s<p.row_numShapes;s++) {
229     for (k=0;k<p.numEqu;k++) {
230     rtmp=0.;
231     for (q=0;q<p.numQuadSub;q++) rtmp+=Vol[q]*S[INDEX2(s,q,p.row_numShapes)]*D_p[INDEX3(k,q,isub,p.numEqu,p.numQuadSub)];
232     EM_lumpedMat[INDEX2(k,s,p.numEqu)]=rtmp;
233     }
234     }
235     #endif
236     for (q=0;q<p.row_numShapesTotal;q++) row_index[q]=p.row_DOF[elements->Nodes[INDEX2(p.row_node[INDEX2(q,isub,p.row_numShapesTotal)],e,p.NN)]];
237     Finley_Util_AddScatter(p.row_numShapesTotal,row_index,p.numEqu,EM_lumpedMat,lumpedMat_p, p.row_DOF_UpperBound);
238     } /* end of isub loop */
239 gross 1204 } /* end color check */
240     } /* end element loop */
241     } /* end color loop */
242 gross 2988 } else { /* with constant D */
243 gross 1204 for (color=elements->minColor;color<=elements->maxColor;color++) {
244 gross 2748 /* open loop over all elements: */
245 gross 1204 #pragma omp for private(e) schedule(static)
246     for(e=0;e<elements->numElements;e++){
247     if (elements->Color[e]==color) {
248 gross 2988 for (isub=0; isub<p.numSub; isub++) {
249 gross 2748 Vol=&(p.row_jac->volume[INDEX3(0,isub,e, p.numQuadSub,p.numSub)]);
250 jfenwick 2770 D_p=getSampleDataRO(D,e);
251 gross 2748
252     #ifdef NEW_LUMPING /* HRZ lumping */
253     m_t=0; /* mass of the element: m_t */
254 gross 2988 for (q=0;q<p.numQuadSub;q++) m_t+=Vol[q];
255 gross 2748 diagS=0; /* diagonal sum: S */
256     for (s=0;s<p.row_numShapes;s++) {
257     rtmp=0;
258     for (q=0;q<p.numQuadSub;q++) rtmp+=Vol[q]*S[INDEX2(s,q,p.row_numShapes)]*S[INDEX2(s,q,p.row_numShapes)];
259 gross 2988 for (k=0;k<p.numEqu;k++) EM_lumpedMat[INDEX2(k,s,p.numEqu)]=rtmp;
260 gross 2748 diagS+=rtmp;
261     }
262 gross 2988 /* rescale diagonals by m_t/diagS to ensure consistent mass over element */
263     rtmp=m_t/diagS;
264     for (s=0;s<p.row_numShapes;s++) {
265     for (k=0;k<p.numEqu;k++) EM_lumpedMat[INDEX2(k,s,p.numEqu)]*=rtmp*D_p[k];
266     }
267     #else /* row-sum lumping */
268 gross 2748 for (s=0;s<p.row_numShapes;s++) {
269 gross 2988 for (k=0;k<p.numEqu;k++) {
270 gross 2748 rtmp=0.;
271     for (q=0;q<p.numQuadSub;q++) rtmp+=Vol[q]*S[INDEX2(s,q,p.row_numShapes)];
272 gross 2989 EM_lumpedMat[INDEX2(k,s,p.numEqu)]=rtmp*D_p[k];
273 gross 2748 }
274 gross 2988 }
275     #endif
276     for (q=0;q<p.row_numShapesTotal;q++) row_index[q]=p.row_DOF[elements->Nodes[INDEX2(p.row_node[INDEX2(q,isub,p.row_numShapesTotal)],e,p.NN)]];
277     Finley_Util_AddScatter(p.row_numShapesTotal,row_index,p.numEqu,EM_lumpedMat,lumpedMat_p, p.row_DOF_UpperBound);
278     } /* end of isub loop */
279 gross 1204 } /* end color check */
280     } /* end element loop */
281     } /* end color loop */
282     }
283 gross 798 }
284 gross 1204 } /* end of pointer check */
285     THREAD_MEMFREE(EM_lumpedMat);
286     THREAD_MEMFREE(row_index);
287     } /* end parallel region */
288 jgs 82 }
289     }

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