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

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Revision 616 - (show annotations)
Wed Mar 22 02:46:56 2006 UTC (13 years, 6 months ago) by elspeth
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Copyright added to more source files.

1 /*
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 /* Updates the element matrices: */
16
17 /* assembles the system of numEq components right hand side F */
18
19 /* -div X + Y */
20
21 /* -(X_i)_i + Y */
22
23 /* Shape of the coefficients: */
24
25 /* X = numDim */
26 /* Y = 1 */
27
28 /**************************************************************/
29
30 /* Author: gross@access.edu.au */
31 /* Version: $Id$ */
32
33 /**************************************************************/
34
35 #include "Assemble.h"
36
37 /**************************************************************/
38
39 void Finley_Assemble_RHSMatrix_Single(dim_t NS,dim_t numDim,dim_t numQuad,
40 double* S,double* DSDX,double* Vol,
41 dim_t NN, double* EM_F,
42 double* X, bool_t extendedX,
43 double* Y, bool_t extendedY) {
44 dim_t s,q,i;
45 double rtmp;
46
47 for (s=0;s<NS;s++) {
48 /**************************************************************/
49 /* process X: */
50 /**************************************************************/
51 if (NULL!=X) {
52 if (extendedX) {
53 for (i=0;i<numDim;i++) {
54 for (q=0;q<numQuad;q++) {
55 EM_F[INDEX2(0,s,1)]+=Vol[q]*DSDX[INDEX3(s,i,q,NS,numDim)]*X[INDEX2(i,q,numDim)];
56 }
57 }
58 } else {
59 for (i=0;i<numDim;i++) {
60 if (X[i]!=0.) {
61 rtmp=0;
62 for (q=0;q<numQuad;q++) rtmp+=Vol[q]*DSDX[INDEX3(s,i,q,NS,numDim)];
63 EM_F[INDEX2(0,s,1)]+=rtmp*X[i];
64 }
65 }
66 }
67 }
68 /**************************************************************/
69 /* process Y: */
70 /**************************************************************/
71 if (NULL!=Y) {
72 if (extendedY) {
73 for (q=0;q<numQuad;q++) EM_F[INDEX2(0,s,1)]+=Vol[q]*S[INDEX2(s,q,NS)]*Y[q];
74 } else {
75 if (Y[0]!=0.) {
76 rtmp=0;
77 for (q=0;q<numQuad;q++) rtmp+=Vol[q]*S[INDEX2(s,q,NS)];
78 EM_F[INDEX2(0,s,1)]+=rtmp*Y[0];
79 }
80 }
81 }
82 }
83 }
84
85 /*
86 * $Log$
87 * Revision 1.3 2005/09/15 03:44:21 jgs
88 * Merge of development branch dev-02 back to main trunk on 2005-09-15
89 *
90 * Revision 1.2.2.1 2005/09/07 06:26:17 gross
91 * the solver from finley are put into the standalone package paso now
92 *
93 * Revision 1.2 2005/07/08 04:07:46 jgs
94 * Merge of development branch back to main trunk on 2005-07-08
95 *
96 * Revision 1.1.1.1.2.1 2005/06/29 02:34:47 gross
97 * some changes towards 64 integers in finley
98 *
99 * Revision 1.1.1.1 2004/10/26 06:53:57 jgs
100 * initial import of project esys2
101 *
102 * Revision 1.2 2004/07/30 04:37:06 gross
103 * escript and finley are linking now and RecMeshTest.py has been passed
104 *
105 * Revision 1.1 2004/07/02 04:21:13 gross
106 * Finley C code has been included
107 *
108 *
109 */

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