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

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Revision 2750 - (hide annotations)
Tue Nov 17 23:39:20 2009 UTC (9 years, 5 months ago) by caltinay
File MIME type: text/plain
File size: 15279 byte(s)
Fixed some compilation errors with OpenMP introduced in last commit.

1 jgs 82
2 ksteube 1312 /*******************************************************
3 ksteube 1811 *
4 jfenwick 2548 * Copyright (c) 2003-2009 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     /* #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 2748
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    
81     /* check if all function spaces are the same */
82    
83 gross 2748 if (! numSamplesEqual(D,p.numQuadSub,elements->numElements) ) {
84     sprintf(error_msg,"Assemble_LumpedSystem: sample points of coefficient D don't match (%d,%d)",p.numQuadSub,elements->numElements);
85 jgs 150 Finley_setError(TYPE_ERROR,error_msg);
86 jgs 82 }
87    
88     /* check the dimensions: */
89    
90 gross 1204 if (p.numEqu==1) {
91 jgs 82 if (!isEmpty(D)) {
92     if (!isDataPointShapeEqual(D,0,dimensions)) {
93 gross 1204 Finley_setError(TYPE_ERROR,"Assemble_LumpedSystem: coefficient D, rank 0 expected.");
94 jgs 82 }
95 gross 1204
96 jgs 82 }
97     } else {
98     if (!isEmpty(D)) {
99     dimensions[0]=p.numEqu;
100 gross 1204 if (!isDataPointShapeEqual(D,1,dimensions)) {
101     sprintf(error_msg,"Assemble_LumpedSystem: coefficient D, expected shape (%d,)",dimensions[0]);
102 jgs 150 Finley_setError(TYPE_ERROR,error_msg);
103 jgs 82 }
104     }
105     }
106 gross 1204
107 jgs 150 if (Finley_noError()) {
108 jfenwick 2271 void* buffer=allocSampleBuffer(D);
109     requireWrite(lumpedMat);
110     lumpedMat_p=getSampleDataRW(lumpedMat,0);
111 gross 2748 len_EM_lumpedMat=p.row_numShapesTotal*p.numEqu;
112 gross 1204 len_EM_lumpedMat_size=len_EM_lumpedMat*sizeof(double);
113 gross 2748
114 gross 1204 expandedD=isExpanded(D);
115 gross 2748 S=p.row_jac->BasisFunctions->S;
116 caltinay 2750
117     #ifdef NEW_LUMPING
118 gross 2748 #pragma omp parallel private(color, EM_lumpedMat, row_index, Vol, D_p, s, q, k, rtmp, diagS, m_t)
119 caltinay 2750 #else
120     #pragma omp parallel private(color, EM_lumpedMat, row_index, Vol, D_p, s, q, k, rtmp)
121     #endif
122 gross 1204 {
123     EM_lumpedMat=THREAD_MEMALLOC(len_EM_lumpedMat,double);
124 gross 2748 row_index=THREAD_MEMALLOC(p.row_numShapesTotal,index_t);
125 gross 1204 if ( !Finley_checkPtr(EM_lumpedMat) && !Finley_checkPtr(row_index) ) {
126     if (p.numEqu == 1) {
127     if (expandedD) {
128 gross 2748
129 gross 1204 for (color=elements->minColor;color<=elements->maxColor;color++) {
130     /* open loop over all elements: */
131     #pragma omp for private(e) schedule(static)
132     for(e=0;e<elements->numElements;e++){
133 gross 2748
134     if (elements->Color[e]==color) {
135     for (isub=0; isub<p.numSub; isub++) {
136     Vol=&(p.row_jac->volume[INDEX3(0,isub,e, p.numQuadSub,p.numSub)]);
137     memset(EM_lumpedMat,0,len_EM_lumpedMat_size);
138    
139     D_p=getSampleDataRO(D,e,buffer);
140     #ifdef NEW_LUMPING /* HRZ lumping */
141     m_t=0; /* mass of the element: m_t */
142     for (q=0;q<p.numQuadSub;q++) m_t+=Vol[q]*D_p[INDEX2(q, isub,p.numQuadSub) ];
143    
144     diagS=0; /* diagonal sum: S */
145     for (s=0;s<p.row_numShapes;s++) {
146     rtmp=0;
147     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)];
148     EM_lumpedMat[INDEX2(0,s,p.numEqu)]=rtmp;
149     diagS+=rtmp;
150     }
151     /* rescale diagonals by m_t/diagS to ensure consistent mass over element */
152     rtmp=m_t/diagS;
153     for (s=0;s<p.row_numShapes;s++) EM_lumpedMat[INDEX2(0,s,p.numEqu)]*=rtmp;
154    
155     #else /* row-sum lumping */
156     for (s=0;s<p.row_numShapes;s++) {
157     rtmp=0;
158     for (q=0;q<p.numQuadSub;q++) rtmp+=Vol[q]*S[INDEX2(s,q,p.row_numShapes)]*D_p[INDEX2(q, isub,p.numQuadSub)];
159     EM_lumpedMat[INDEX2(0,s,p.numEqu)]+=rtmp;
160     }
161     #endif
162     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)]];
163     Finley_Util_AddScatter(p.row_numShapesTotal,row_index,p.numEqu,EM_lumpedMat,lumpedMat_p, p.row_DOF_UpperBound);
164     } /* end of isub loop */
165 gross 1204 } /* end color check */
166 gross 2748
167 gross 1204 } /* end element loop */
168     } /* end color loop */
169 gross 2748 } else {
170 gross 1204 for (color=elements->minColor;color<=elements->maxColor;color++) {
171 gross 2748 /* open loop over all elements: */
172     #pragma omp for private(e) schedule(static)
173     for(e=0;e<elements->numElements;e++){
174    
175     if (elements->Color[e]==color) {
176     for (isub=0; isub<p.numSub; isub++) {
177    
178     Vol=&(p.row_jac->volume[INDEX3(0,isub,e, p.numQuadSub,p.numSub)]);
179     memset(EM_lumpedMat,0,len_EM_lumpedMat_size);
180    
181     D_p=getSampleDataRO(D,e,buffer);
182     #ifdef NEW_LUMPING /* HRZ lumping */
183     m_t=0; /* mass of the element: m_t */
184     for (q=0;q<p.numQuadSub;q++) m_t+=Vol[q];
185     m_t*=D_p[0];
186    
187     diagS=0; /* diagonal sum: S */
188     for (s=0;s<p.row_numShapes;s++) {
189     rtmp=0;
190     for (q=0;q<p.numQuadSub;q++) rtmp+=Vol[q]*S[INDEX2(s,q,p.row_numShapes)]*S[INDEX2(s,q,p.row_numShapes)];
191     rtmp*=D_p[0];
192     EM_lumpedMat[INDEX2(0,s,p.numEqu)]=rtmp;
193     diagS+=rtmp;
194     }
195     /* rescale diagonals by m_t/diagS to ensure consistent mass over element */
196     rtmp=m_t/diagS;
197     for (s=0;s<p.row_numShapes;s++) EM_lumpedMat[INDEX2(0,s,p.numEqu)]*=rtmp;
198    
199     #else /* row-sum lumping */
200     for (s=0;s<p.row_numShapes;s++) {
201     rtmp=0;
202     for (q=0;q<p.numQuadSub;q++) rtmp+=Vol[q]*S[INDEX2(s,q,p.row_numShapes)];
203     EM_lumpedMat[INDEX2(0,s,p.numEqu)]+=rtmp*D_p[0];
204     }
205     #endif
206     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)]];
207     Finley_Util_AddScatter(p.row_numShapesTotal,row_index,p.numEqu,EM_lumpedMat,lumpedMat_p, p.row_DOF_UpperBound);
208     } /* end of isub loop */
209     } /* end color check */
210 gross 1204 } /* end element loop */
211 gross 2748 } /* end color loop */
212    
213 gross 1204 }
214 gross 798 } else {
215 gross 1204 if (expandedD) {
216     for (color=elements->minColor;color<=elements->maxColor;color++) {
217     /* open loop over all elements: */
218     #pragma omp for private(e) schedule(static)
219     for(e=0;e<elements->numElements;e++){
220     if (elements->Color[e]==color) {
221 gross 2748 for (isub=0; isub<p.numSub; isub++) {
222     Vol=&(p.row_jac->volume[INDEX3(0,isub,e, p.numQuadSub,p.numSub)]);
223     memset(EM_lumpedMat,0,len_EM_lumpedMat_size);
224     D_p=getSampleDataRO(D,e,buffer);
225    
226     #ifdef NEW_LUMPING /* HRZ lumping */
227     for (k=0;k<p.numEqu;k++) {
228     m_t=0; /* mass of the element: m_t */
229     for (q=0;q<p.numQuadSub;q++) m_t+=Vol[q]*D_p[INDEX3(k,q,isub,p.numEqu,p.numQuadSub)];
230    
231     diagS=0; /* diagonal sum: S */
232     for (s=0;s<p.row_numShapes;s++) {
233     rtmp=0;
234     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)];
235     EM_lumpedMat[INDEX2(k,s,p.numEqu)]=rtmp;
236     diagS+=rtmp;
237     }
238     /* rescale diagonals by m_t/diagS to ensure consistent mass over element */
239     rtmp=m_t/diagS;
240     for (s=0;s<p.row_numShapes;s++) EM_lumpedMat[INDEX2(k,s,p.numEqu)]*=rtmp;
241     }
242     #else /* row-sum lumping */
243     for (s=0;s<p.row_numShapes;s++) {
244     for (k=0;k<p.numEqu;k++) {
245     rtmp=0.;
246     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)];
247     EM_lumpedMat[INDEX2(k,s,p.numEqu)]+=rtmp;
248 btully 1220 }
249 gross 2748 }
250     #endif
251     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)]];
252     Finley_Util_AddScatter(p.row_numShapesTotal,row_index,p.numEqu,EM_lumpedMat,lumpedMat_p, p.row_DOF_UpperBound);
253     } /* end of isub loop */
254 gross 1204 } /* end color check */
255     } /* end element loop */
256     } /* end color loop */
257     } else {
258     for (color=elements->minColor;color<=elements->maxColor;color++) {
259 gross 2748 /* open loop over all elements: */
260 gross 1204 #pragma omp for private(e) schedule(static)
261     for(e=0;e<elements->numElements;e++){
262     if (elements->Color[e]==color) {
263 gross 2748 for (isub=0; isub<p.numSub; isub++) {
264     Vol=&(p.row_jac->volume[INDEX3(0,isub,e, p.numQuadSub,p.numSub)]);
265     memset(EM_lumpedMat,0,len_EM_lumpedMat_size);
266     D_p=getSampleDataRO(D,e,buffer);
267    
268     #ifdef NEW_LUMPING /* HRZ lumping */
269     for (k=0;k<p.numEqu;k++) {
270     m_t=0; /* mass of the element: m_t */
271     for (q=0;q<p.numQuadSub;q++) m_t+=Vol[q]*D_p[INDEX3(k,q,isub,p.numEqu,p.numQuadSub)];
272     m_t*=D_p[k];
273     diagS=0; /* diagonal sum: S */
274     for (s=0;s<p.row_numShapes;s++) {
275     rtmp=0;
276     for (q=0;q<p.numQuadSub;q++) rtmp+=Vol[q]*S[INDEX2(s,q,p.row_numShapes)]*S[INDEX2(s,q,p.row_numShapes)];
277     rtmp*=D_p[k];
278     EM_lumpedMat[INDEX2(k,s,p.numEqu)]=rtmp;
279     diagS+=rtmp;
280     }
281     /* rescale diagonals by m_t/diagS to ensure consistent mass over element */
282     rtmp=m_t/diagS;
283     for (s=0;s<p.row_numShapes;s++) EM_lumpedMat[INDEX2(k,s,p.numEqu)]*=rtmp;
284     }
285     #else /* row-sum lumping */
286     for (s=0;s<p.row_numShapes;s++) {
287     for (k=0;k<p.numEqu;k++) {
288     rtmp=0.;
289     for (q=0;q<p.numQuadSub;q++) rtmp+=Vol[q]*S[INDEX2(s,q,p.row_numShapes)];
290     EM_lumpedMat[INDEX2(k,s,p.numEqu)]+=rtmp*D_p[k];
291     }
292     }
293     #endif
294     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)]];
295     Finley_Util_AddScatter(p.row_numShapesTotal,row_index,p.numEqu,EM_lumpedMat,lumpedMat_p, p.row_DOF_UpperBound);
296     } /* end of isub loop */
297 gross 1204 } /* end color check */
298     } /* end element loop */
299     } /* end color loop */
300     }
301 gross 798 }
302 gross 1204 } /* end of pointer check */
303     THREAD_MEMFREE(EM_lumpedMat);
304     THREAD_MEMFREE(row_index);
305     } /* end parallel region */
306 jfenwick 2271 freeSampleBuffer(buffer);
307 jgs 82 }
308     }

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