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

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Revision 1363 - (hide annotations)
Mon Dec 17 03:42:03 2007 UTC (13 years, 7 months ago) by gross
File MIME type: text/plain
File size: 4921 byte(s)
initialization for FCT solver added.
1 gross 1361 /* $Id:$ */
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 gross 1362 /* Paso: FCTransportProblem */
17 gross 1361
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 gross 1362 /**************************************************************/
31 gross 1361
32 gross 1362 /* 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 gross 1361
38 gross 1362 Paso_SystemMatrix_free(in->transport_matrix);
39     Paso_SystemMatrix_free(in->flux_matrix);
40     Paso_MPIInfo_free(in->mpi_info);
41 gross 1361
42 gross 1362 MEMFREE(in->lumped_mass_matrix);
43 gross 1363 MEMFREE(in->row_sum_flux_matrix);
44 gross 1362 MEMFREE(in->colorOf);
45     MEMFREE(in->main_iptr);
46     MEMFREE(in);
47     }
48     }
49     }
50 gross 1361
51 gross 1362 Paso_FCTransportProblem* Paso_FCTransportProblem_getReference(Paso_FCTransportProblem* in) {
52 gross 1361 if (in!=NULL) {
53 gross 1362 ++(in->reference_counter);
54 gross 1361 }
55 gross 1362 }
56    
57     Paso_SystemMatrix* Paso_FCTransportProblem_borrowTransportMatrix(Paso_FCTransportProblem* in) {
58     return in->transport_matrix;
59 gross 1361 }
60    
61 gross 1362 Paso_SystemMatrix* Paso_FCTransportProblem_borrowFluxMatrix(Paso_FCTransportProblem* in) {
62     return in->flux_matrix;
63     }
64 gross 1361
65 gross 1362 double* Paso_FCTransportProblem_borrowLumpedMassMatrix(Paso_FCTransportProblem* in) {
66     return in->lumped_mass_matrix;
67     }
68 gross 1361
69 gross 1362 dim_t Paso_FCTransportProblem_getTotalNumRows(Paso_FCTransportProblem* in) {
70     return Paso_SystemMatrix_getTotalNumRows(in->transport_matrix);
71     }
72 gross 1361
73 gross 1362 Paso_FCTransportProblem* Paso_FCTransportProblem_alloc(double theta, Paso_SystemMatrixPattern *pattern, int block_size
74 gross 1361
75 gross 1362
76     ) {
77     Paso_SystemMatrixType matrix_type=MATRIX_FORMAT_DEFAULT+MATRIX_FORMAT_BLK1; /* at the moment only block size 1 is supported */
78     Paso_FCTransportProblem* out=NULL;
79     dim_t n,i;
80     index_t iptr,iptr_main,k;
81    
82     if ((theta<0.) || (theta >1.)) {
83     Paso_setError(TYPE_ERROR,"Paso_FCTransportProblem_alloc: theta needs to be between 0. and. 1.");
84 gross 1361 return NULL;
85 gross 1362 }
86 gross 1361
87 gross 1362 out=MEMALLOC(1,Paso_FCTransportProblem);
88     if (Paso_checkPtr(out)) return NULL;
89 gross 1361
90 gross 1362 out->theta=theta;
91 gross 1363 out->valid_matrices=FALSE;
92 gross 1362 out->transport_matrix=Paso_SystemMatrix_alloc(matrix_type,pattern,block_size,block_size);
93     Paso_SystemMatrix_allocBuffer(out->transport_matrix);
94     out->flux_matrix=Paso_SystemMatrix_alloc(matrix_type,pattern,block_size,block_size);
95     out->mpi_info=Paso_MPIInfo_getReference(pattern->mpi_info);
96 gross 1361
97 gross 1362 out->colorOf=NULL;
98     out->main_iptr=NULL;
99     out->lumped_mass_matrix=NULL;
100 gross 1363 out->row_sum_flux_matrix=NULL;
101 gross 1361
102 gross 1362 if (Paso_noError()) {
103     n=Paso_SystemMatrix_getTotalNumRows(out->transport_matrix);
104    
105     out->colorOf=MEMALLOC(n,index_t);
106     out->main_iptr=MEMALLOC(n,index_t);
107     out->lumped_mass_matrix=MEMALLOC(n,double);
108 gross 1363 out->row_sum_flux_matrix=MEMALLOC(n,double);
109 gross 1362
110 gross 1363 if ( ! (Paso_checkPtr(out->colorOf) || Paso_checkPtr(out->main_iptr) ||
111     Paso_checkPtr(out->lumped_mass_matrix) || Paso_checkPtr(out->row_sum_flux_matrix)) ) {
112 gross 1362
113     printf("Paso_SolverFCT_getFCTransportProblem: Revise coloring!!\n");
114     Paso_Pattern_color(pattern->mainPattern,&(out->num_colors),out->colorOf);
115    
116    
117     /* identify the main diagonals */
118     #pragma omp parallel for schedule(static) private(i,iptr,iptr_main,k)
119     for (i = 0; i < n; ++i) {
120     for (iptr=pattern->mainPattern->ptr[i];iptr<pattern->mainPattern->ptr[i+1]; ++iptr) {
121     iptr_main=pattern->mainPattern->ptr[0]-1;
122     for (iptr=pattern->mainPattern->ptr[i];iptr<pattern->mainPattern->ptr[i+1]; iptr++) {
123     if (pattern->mainPattern->index[iptr]==i) {
124     iptr_main=iptr;
125     break;
126     }
127     }
128     out->main_iptr[i]=iptr_main;
129     if (iptr_main==pattern->mainPattern->ptr[0]-1)
130     Paso_setError(VALUE_ERROR, "Paso_FCTransportProblem_alloc: no main diagonal");
131     }
132     }
133    
134     }
135    
136 gross 1361 }
137     if (Paso_noError()) {
138     return out;
139     } else {
140 gross 1362 Paso_FCTransportProblem_free(out);
141 gross 1361 return NULL;
142     }
143     }

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