/[escript]/trunk/paso/src/SolverFCT.c
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Contents of /trunk/paso/src/SolverFCT.c

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Revision 1367 - (show annotations)
Wed Dec 19 02:45:07 2007 UTC (12 years, 2 months ago) by gross
File MIME type: text/plain
File size: 5564 byte(s)
finley can now assemble a transport problem.
1 /* $Id:$ */
2
3 /*******************************************************
4 *
5 * Copyright 2007 by University of Queensland
6 *
7 * http://esscc.uq.edu.au
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
14 /**************************************************************/
15
16 /* Paso: FCTransportProblem */
17
18 /**************************************************************/
19
20 /* Author: l.gross@uq.edu.au */
21
22 /**************************************************************/
23
24
25 #include "Paso.h"
26 #include "SolverFCT.h"
27 #include "PasoUtil.h"
28
29
30 /**************************************************************/
31
32 /* free all memory used by */
33 void Paso_FCTransportProblem_free(Paso_FCTransportProblem* in) {
34 if (in!=NULL) {
35 in->reference_counter--;
36 if (in->reference_counter<=0) {
37
38 Paso_SystemMatrix_free(in->transport_matrix);
39 Paso_SystemMatrix_free(in->flux_matrix);
40 Paso_MPIInfo_free(in->mpi_info);
41
42 MEMFREE(in->u);
43 MEMFREE(in->lumped_mass_matrix);
44 MEMFREE(in->row_sum_flux_matrix);
45 MEMFREE(in->colorOf);
46 MEMFREE(in->main_iptr);
47 MEMFREE(in);
48 }
49 }
50 }
51
52 Paso_FCTransportProblem* Paso_FCTransportProblem_getReference(Paso_FCTransportProblem* in) {
53 if (in!=NULL) {
54 ++(in->reference_counter);
55 }
56 return in;
57 }
58
59 Paso_SystemMatrix* Paso_FCTransportProblem_borrowTransportMatrix(Paso_FCTransportProblem* in) {
60 return in->transport_matrix;
61 }
62
63 Paso_SystemMatrix* Paso_FCTransportProblem_borrowFluxMatrix(Paso_FCTransportProblem* in) {
64 return in->flux_matrix;
65 }
66
67 double* Paso_FCTransportProblem_borrowLumpedMassMatrix(Paso_FCTransportProblem* in) {
68 return in->lumped_mass_matrix;
69 }
70
71 dim_t Paso_FCTransportProblem_getTotalNumRows(Paso_FCTransportProblem* in) {
72 return Paso_SystemMatrix_getTotalNumRows(in->transport_matrix);
73 }
74
75 Paso_FCTransportProblem* Paso_FCTransportProblem_alloc(double theta, double dt_max, Paso_SystemMatrixPattern *pattern, int block_size
76
77
78 ) {
79 Paso_SystemMatrixType matrix_type=MATRIX_FORMAT_DEFAULT+MATRIX_FORMAT_BLK1; /* at the moment only block size 1 is supported */
80 Paso_FCTransportProblem* out=NULL;
81 dim_t n,i;
82 index_t iptr,iptr_main,k;
83
84 if ((theta<0.) || (theta >1.)) {
85 Paso_setError(TYPE_ERROR,"Paso_FCTransportProblem_alloc: theta needs to be between 0. and. 1.");
86 return NULL;
87 }
88
89 out=MEMALLOC(1,Paso_FCTransportProblem);
90 if (Paso_checkPtr(out)) return NULL;
91
92 out->theta=theta;
93 out->valid_matrices=FALSE;
94 out->transport_matrix=Paso_SystemMatrix_alloc(matrix_type,pattern,block_size,block_size);
95 Paso_SystemMatrix_allocBuffer(out->transport_matrix);
96 out->flux_matrix=Paso_SystemMatrix_alloc(matrix_type,pattern,block_size,block_size);
97 out->mpi_info=Paso_MPIInfo_getReference(pattern->mpi_info);
98
99 out->colorOf=NULL;
100 out->main_iptr=NULL;
101 out->lumped_mass_matrix=NULL;
102 out->row_sum_flux_matrix=NULL;
103
104 if (Paso_noError()) {
105 n=Paso_SystemMatrix_getTotalNumRows(out->transport_matrix);
106
107 out->colorOf=MEMALLOC(n,index_t);
108 out->main_iptr=MEMALLOC(n,index_t);
109 out->lumped_mass_matrix=MEMALLOC(n,double);
110 out->row_sum_flux_matrix=MEMALLOC(n,double);
111 out->u=MEMALLOC(n,double);
112
113 if ( ! (Paso_checkPtr(out->colorOf) || Paso_checkPtr(out->main_iptr) ||
114 Paso_checkPtr(out->lumped_mass_matrix) || Paso_checkPtr(out->row_sum_flux_matrix) || Paso_checkPtr(out->u)) ) {
115
116 printf("Paso_SolverFCT_getFCTransportProblem: Revise coloring!!\n");
117 Paso_Pattern_color(pattern->mainPattern,&(out->num_colors),out->colorOf);
118
119
120 #pragma omp parallel for schedule(static) private(i)
121 for (i = 0; i < n; ++i) {
122 out->lumped_mass_matrix[i]=0.;
123 out->row_sum_flux_matrix[i]=0.;
124 out->u[i]=0.;
125 }
126
127 /* identify the main diagonals */
128 #pragma omp parallel for schedule(static) private(i,iptr,iptr_main,k)
129 for (i = 0; i < n; ++i) {
130 for (iptr=pattern->mainPattern->ptr[i];iptr<pattern->mainPattern->ptr[i+1]; ++iptr) {
131 iptr_main=pattern->mainPattern->ptr[0]-1;
132 for (iptr=pattern->mainPattern->ptr[i];iptr<pattern->mainPattern->ptr[i+1]; iptr++) {
133 if (pattern->mainPattern->index[iptr]==i) {
134 iptr_main=iptr;
135 break;
136 }
137 }
138 out->main_iptr[i]=iptr_main;
139 if (iptr_main==pattern->mainPattern->ptr[0]-1)
140 Paso_setError(VALUE_ERROR, "Paso_FCTransportProblem_alloc: no main diagonal");
141 }
142 }
143
144 }
145
146 }
147 if (Paso_noError()) {
148 return out;
149 } else {
150 Paso_FCTransportProblem_free(out);
151 return NULL;
152 }
153 }
154
155 void Paso_FCTransportProblem_checkinSolution(Paso_FCTransportProblem* in, double* u) {
156 dim_t i, n;
157
158 n=Paso_FCTransportProblem_getTotalNumRows(in);
159 #pragma omp parallel for schedule(static) private(i)
160 for (i = 0; i < n; ++i) {
161 in->u[i]=u[i];
162 }
163 }

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