/[escript]/trunk/finley/src/Assemble_PDE_Single2_2D.c
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Annotation of /trunk/finley/src/Assemble_PDE_Single2_2D.c

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Revision 853 - (hide annotations)
Wed Sep 20 05:56:36 2006 UTC (13 years, 5 months ago) by gross
File MIME type: text/plain
File size: 14738 byte(s)
some performance problems wit openmp fixed.
1 gross 798 /*
2     ************************************************************
3     * Copyright 2006 by ACcESS MNRF *
4     * *
5     * http://www.access.edu.au *
6     * Primary Business: Queensland, Australia *
7     * Licensed under the Open Software License version 3.0 *
8     * http://www.opensource.org/licenses/osl-3.0.php *
9     * *
10     ************************************************************
11     */
12    
13     /**************************************************************/
14    
15     /* assembles the system of numEq PDEs into the stiffness matrix S right hand side F */
16     /* the shape functions for test and solution must be identical */
17    
18    
19     /* -(A_{i,j} u_,j)_i-(B_{i} u)_i+C_{j} u_,j-D u_m and -(X_,i)_i + Y */
20    
21     /* in a 2D domain. The shape functions for test and solution must be identical */
22     /* and row_NS == row_NN */
23    
24     /* Shape of the coefficients: */
25    
26     /* A = 2 x 2 */
27     /* B = 2 */
28     /* C = 2 */
29     /* D = scalar */
30     /* X = 2 */
31     /* Y = scalar */
32    
33    
34     /**************************************************************/
35    
36     /* Author: gross@access.edu.au */
37     /* Version: $Id:$ */
38    
39     /**************************************************************/
40    
41    
42     #include "Assemble.h"
43     #include "Util.h"
44 gross 853 #ifdef _OPENMP
45     #include <omp.h>
46     #endif
47 gross 798
48 gross 853
49 gross 798 /**************************************************************/
50    
51     void Finley_Assemble_PDE_Single2_2D(Assemble_Parameters p, Finley_ElementFile* elements,
52     Paso_SystemMatrix* Mat, escriptDataC* F,
53     escriptDataC* A, escriptDataC* B, escriptDataC* C, escriptDataC* D, escriptDataC* X, escriptDataC* Y) {
54    
55     #define DIM 2
56     index_t color;
57     dim_t e;
58 gross 853 double *EM_S, *EM_F, *Vol, *DSDX, *A_p, *B_p, *C_p, *D_p, *X_p, *Y_p;
59     index_t *row_index;
60     register dim_t q, s,r;
61     register double rtmp00, rtmp01, rtmp10, rtmp11, rtmp, rtmp0, rtmp1;
62     bool_t add_EM_F, add_EM_S;
63    
64 gross 798 bool_t extendedA=isExpanded(A);
65     bool_t extendedB=isExpanded(B);
66     bool_t extendedC=isExpanded(C);
67     bool_t extendedD=isExpanded(D);
68     bool_t extendedX=isExpanded(X);
69     bool_t extendedY=isExpanded(Y);
70     double *F_p=getSampleData(F,0);
71     double *S=p.row_jac->ReferenceElement->S;
72     dim_t len_EM_S=p.row_NN*p.col_NN;
73     dim_t len_EM_F=p.row_NN;
74    
75    
76 gross 853 #pragma omp parallel private(color,EM_S, EM_F, Vol, DSDX, A_p, B_p, C_p, D_p, X_p, Y_p,row_index,q, s,r,rtmp00, rtmp01, rtmp10, rtmp11, rtmp, rtmp0, rtmp1,add_EM_F, add_EM_S)
77 gross 798 {
78 gross 853 EM_S=THREAD_MEMALLOC(len_EM_S,double);
79     EM_F=THREAD_MEMALLOC(len_EM_F,double);
80     row_index=THREAD_MEMALLOC(p.row_NN,index_t);
81    
82     if (!Finley_checkPtr(EM_S) && !Finley_checkPtr(EM_F) && !Finley_checkPtr(row_index) ) {
83    
84     #ifndef PASO_MPI
85     for (color=elements->minColor;color<=elements->maxColor;color++) {
86     /* open loop over all elements: */
87     #pragma omp for private(e) schedule(static)
88     for(e=0;e<elements->numElements;e++){
89     if (elements->Color[e]==color) {
90     #else
91     {
92     for(e=0;e<elements->numElements;e++) {
93     {
94     #endif
95     Vol=&(p.row_jac->volume[INDEX2(0,e,p.numQuad)]);
96     DSDX=&(p.row_jac->DSDX[INDEX4(0,0,0,e,p.row_NN,DIM,p.numQuad)]);
97     for (q=0;q<len_EM_S;++q) EM_S[q]=0;
98     for (q=0;q<len_EM_F;++q) EM_F[q]=0;
99     add_EM_F=FALSE;
100     add_EM_S=FALSE;
101     /**************************************************************/
102     /* process A: */
103     /**************************************************************/
104     A_p=getSampleData(A,e);
105     if (NULL!=A_p) {
106     add_EM_S=TRUE;
107     if (extendedA) {
108     for (s=0;s<p.row_NS;s++) {
109     for (r=0;r<p.col_NS;r++) {
110     rtmp=0;
111     for (q=0;q<p.numQuad;q++) {
112     rtmp+=Vol[q]*(DSDX[INDEX3(s,0,q,p.row_NN,DIM)]*A_p[INDEX3(0,0,q,DIM,DIM)]*DSDX[INDEX3(r,0,q,p.row_NN,DIM)]
113     + DSDX[INDEX3(s,0,q,p.row_NN,DIM)]*A_p[INDEX3(0,1,q,DIM,DIM)]*DSDX[INDEX3(r,1,q,p.row_NN,DIM)]
114     + DSDX[INDEX3(s,1,q,p.row_NN,DIM)]*A_p[INDEX3(1,0,q,DIM,DIM)]*DSDX[INDEX3(r,0,q,p.row_NN,DIM)]
115     + DSDX[INDEX3(s,1,q,p.row_NN,DIM)]*A_p[INDEX3(1,1,q,DIM,DIM)]*DSDX[INDEX3(r,1,q,p.row_NN,DIM)] );
116     }
117     EM_S[INDEX4(0,0,s,r,p.numEqu,p.numComp,p.row_NN)]+=rtmp;
118     }
119     }
120     } else {
121     for (s=0;s<p.row_NS;s++) {
122     for (r=0;r<p.col_NS;r++) {
123     rtmp00=0;
124     rtmp01=0;
125     rtmp10=0;
126     rtmp11=0;
127     for (q=0;q<p.numQuad;q++) {
128     rtmp0=Vol[q]*DSDX[INDEX3(s,0,q,p.row_NN,DIM)];
129     rtmp1=Vol[q]*DSDX[INDEX3(s,1,q,p.row_NN,DIM)];
130     rtmp00+=rtmp0*DSDX[INDEX3(r,0,q,p.row_NN,DIM)];
131     rtmp01+=rtmp0*DSDX[INDEX3(r,1,q,p.row_NN,DIM)];
132     rtmp10+=rtmp1*DSDX[INDEX3(r,0,q,p.row_NN,DIM)];
133     rtmp11+=rtmp1*DSDX[INDEX3(r,1,q,p.row_NN,DIM)];
134     }
135     EM_S[INDEX4(0,0,s,r,p.numEqu,p.numComp,p.row_NN)]+= rtmp00*A_p[INDEX2(0,0,DIM)]
136     + rtmp01*A_p[INDEX2(0,1,DIM)]
137     + rtmp10*A_p[INDEX2(1,0,DIM)]
138     + rtmp11*A_p[INDEX2(1,1,DIM)];
139     }
140     }
141     }
142     }
143     /**************************************************************/
144     /* process B: */
145     /**************************************************************/
146     B_p=getSampleData(B,e);
147     if (NULL!=B_p) {
148     add_EM_S=TRUE;
149     if (extendedB) {
150     for (s=0;s<p.row_NS;s++) {
151     for (r=0;r<p.col_NS;r++) {
152     rtmp=0.;
153     for (q=0;q<p.numQuad;q++) {
154     rtmp+=Vol[q]*S[INDEX2(r,q,p.row_NS)]*(DSDX[INDEX3(s,0,q,p.row_NN,DIM)]*B_p[INDEX2(0,q,DIM)]
155     + DSDX[INDEX3(s,1,q,p.row_NN,DIM)]*B_p[INDEX2(1,q,DIM)]);
156     }
157     EM_S[INDEX4(0,0,s,r,p.numEqu,p.numComp,p.row_NN)]+=rtmp;
158     }
159     }
160     } else {
161     for (s=0;s<p.row_NS;s++) {
162     for (r=0;r<p.col_NS;r++) {
163     rtmp0=0;
164     rtmp1=0;
165     for (q=0;q<p.numQuad;q++) {
166     rtmp=Vol[q]*S[INDEX2(r,q,p.row_NS)];
167     rtmp0+=rtmp*DSDX[INDEX3(s,0,q,p.row_NN,DIM)];
168     rtmp1+=rtmp*DSDX[INDEX3(s,1,q,p.row_NN,DIM)];
169     }
170     EM_S[INDEX4(0,0,s,r,p.numEqu,p.numComp,p.row_NN)]+=rtmp0*B_p[0]+rtmp1*B_p[1];
171     }
172     }
173 gross 798 }
174 gross 853 }
175     /**************************************************************/
176     /* process C: */
177     /**************************************************************/
178     C_p=getSampleData(C,e);
179     if (NULL!=C_p) {
180     add_EM_S=TRUE;
181     if (extendedC) {
182     for (s=0;s<p.row_NS;s++) {
183     for (r=0;r<p.col_NS;r++) {
184     rtmp=0;
185     for (q=0;q<p.numQuad;q++) {
186     rtmp+=Vol[q]*S[INDEX2(s,q,p.row_NS)]*(C_p[INDEX2(0,q,DIM)]*DSDX[INDEX3(r,0,q,p.row_NN,DIM)]
187     + C_p[INDEX2(1,q,DIM)]*DSDX[INDEX3(r,1,q,p.row_NN,DIM)]);
188     }
189     EM_S[INDEX4(0,0,s,r,p.numEqu,p.numComp,p.row_NN)]+=rtmp;
190     }
191     }
192     } else {
193     for (s=0;s<p.row_NS;s++) {
194     for (r=0;r<p.col_NS;r++) {
195     rtmp0=0;
196     rtmp1=0;
197     for (q=0;q<p.numQuad;q++) {
198     rtmp=Vol[q]*S[INDEX2(s,q,p.row_NS)];
199     rtmp0+=rtmp*DSDX[INDEX3(r,0,q,p.row_NN,DIM)];
200     rtmp1+=rtmp*DSDX[INDEX3(r,1,q,p.row_NN,DIM)];
201     }
202     EM_S[INDEX4(0,0,s,r,p.numEqu,p.numComp,p.row_NN)]+=rtmp0*C_p[0]+rtmp1*C_p[1];
203     }
204     }
205     }
206     }
207     /************************************************************* */
208     /* process D */
209     /**************************************************************/
210     D_p=getSampleData(D,e);
211     if (NULL!=D_p) {
212     add_EM_S=TRUE;
213     if (extendedD) {
214     for (s=0;s<p.row_NS;s++) {
215     for (r=0;r<p.col_NS;r++) {
216     rtmp=0;
217     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)];
218     EM_S[INDEX4(0,0,s,r,p.numEqu,p.numComp,p.row_NN)]+=rtmp;
219     }
220     }
221     } else {
222     for (s=0;s<p.row_NS;s++) {
223     for (r=0;r<p.col_NS;r++) {
224     rtmp=0;
225     for (q=0;q<p.numQuad;q++) rtmp+=Vol[q]*S[INDEX2(s,q,p.row_NS)]*S[INDEX2(r,q,p.row_NS)];
226     EM_S[INDEX4(0,0,s,r,p.numEqu,p.numComp,p.row_NN)]+=rtmp*D_p[0];
227     }
228     }
229     }
230     }
231     /**************************************************************/
232     /* process X: */
233     /**************************************************************/
234     X_p=getSampleData(X,e);
235     if (NULL!=X_p) {
236     add_EM_F=TRUE;
237     if (extendedX) {
238     for (s=0;s<p.row_NS;s++) {
239     rtmp=0.;
240 gross 798 for (q=0;q<p.numQuad;q++) {
241 gross 853 rtmp+=Vol[q]*( DSDX[INDEX3(s,0,q,p.row_NN,DIM)]*X_p[INDEX2(0,q,DIM)]
242     + DSDX[INDEX3(s,1,q,p.row_NN,DIM)]*X_p[INDEX2(1,q,DIM)]);
243     }
244     EM_F[INDEX2(0,s,p.numEqu)]+=rtmp;
245 gross 798 }
246 gross 853 } else {
247     for (s=0;s<p.row_NS;s++) {
248     rtmp0=0.;
249     rtmp1=0.;
250 gross 798 for (q=0;q<p.numQuad;q++) {
251 gross 853 rtmp0+=Vol[q]*DSDX[INDEX3(s,0,q,p.row_NN,DIM)];
252     rtmp1+=Vol[q]*DSDX[INDEX3(s,1,q,p.row_NN,DIM)];
253 gross 798 }
254 gross 853 EM_F[INDEX2(0,s,p.numEqu)]+=rtmp0*X_p[0]+rtmp1*X_p[1];
255 gross 798 }
256 gross 853 }
257 gross 798 }
258 gross 853 /**************************************************************/
259     /* process Y: */
260     /**************************************************************/
261     Y_p=getSampleData(Y,e);
262     if (NULL!=Y_p) {
263     add_EM_F=TRUE;
264     if (extendedY) {
265     for (s=0;s<p.row_NS;s++) {
266     rtmp=0;
267     for (q=0;q<p.numQuad;q++) rtmp+=Vol[q]*S[INDEX2(s,q,p.row_NS)]*Y_p[q];
268     EM_F[INDEX2(0,s,p.numEqu)]+=rtmp;
269 gross 798 }
270 gross 853 } else {
271     for (s=0;s<p.row_NS;s++) {
272 gross 798 rtmp=0;
273 gross 853 for (q=0;q<p.numQuad;q++) rtmp+=Vol[q]*S[INDEX2(s,q,p.row_NS)];
274     EM_F[INDEX2(0,s,p.numEqu)]+=rtmp*Y_p[0];
275 gross 798 }
276     }
277 gross 853 }
278     /***********************************************************************************************/
279     /* add the element matrices onto the matrix and right hand side */
280     /***********************************************************************************************/
281     for (q=0;q<p.row_NN;q++) row_index[q]=p.row_DOF[elements->Nodes[INDEX2(p.row_node[q],e,p.NN)]];
282     if (add_EM_F) Finley_Util_AddScatter(p.row_NN,row_index,p.numEqu,EM_F,F_p, p.row_DOF_UpperBound);
283     if (add_EM_S) Finley_Assemble_addToSystemMatrix(Mat,p.row_NN,row_index,p.numEqu,p.col_NN,row_index,p.numComp,EM_S);
284    
285     } /* end color check */
286     } /* end element loop */
287     } /* end color loop */
288    
289     THREAD_MEMFREE(EM_S);
290     THREAD_MEMFREE(EM_F);
291     THREAD_MEMFREE(row_index);
292 gross 798
293 gross 853 } /* end of pointer check */
294 gross 798 } /* end parallel region */
295     }
296     /*
297     * $Log$
298     */

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