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

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Revision 1363 - (show annotations)
Mon Dec 17 03:42:03 2007 UTC (12 years, 2 months ago) by gross
File MIME type: text/plain
File size: 4921 byte(s)
initialization for FCT solver added.
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->lumped_mass_matrix);
43 MEMFREE(in->row_sum_flux_matrix);
44 MEMFREE(in->colorOf);
45 MEMFREE(in->main_iptr);
46 MEMFREE(in);
47 }
48 }
49 }
50
51 Paso_FCTransportProblem* Paso_FCTransportProblem_getReference(Paso_FCTransportProblem* in) {
52 if (in!=NULL) {
53 ++(in->reference_counter);
54 }
55 }
56
57 Paso_SystemMatrix* Paso_FCTransportProblem_borrowTransportMatrix(Paso_FCTransportProblem* in) {
58 return in->transport_matrix;
59 }
60
61 Paso_SystemMatrix* Paso_FCTransportProblem_borrowFluxMatrix(Paso_FCTransportProblem* in) {
62 return in->flux_matrix;
63 }
64
65 double* Paso_FCTransportProblem_borrowLumpedMassMatrix(Paso_FCTransportProblem* in) {
66 return in->lumped_mass_matrix;
67 }
68
69 dim_t Paso_FCTransportProblem_getTotalNumRows(Paso_FCTransportProblem* in) {
70 return Paso_SystemMatrix_getTotalNumRows(in->transport_matrix);
71 }
72
73 Paso_FCTransportProblem* Paso_FCTransportProblem_alloc(double theta, Paso_SystemMatrixPattern *pattern, int block_size
74
75
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 return NULL;
85 }
86
87 out=MEMALLOC(1,Paso_FCTransportProblem);
88 if (Paso_checkPtr(out)) return NULL;
89
90 out->theta=theta;
91 out->valid_matrices=FALSE;
92 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
97 out->colorOf=NULL;
98 out->main_iptr=NULL;
99 out->lumped_mass_matrix=NULL;
100 out->row_sum_flux_matrix=NULL;
101
102 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 out->row_sum_flux_matrix=MEMALLOC(n,double);
109
110 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
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 }
137 if (Paso_noError()) {
138 return out;
139 } else {
140 Paso_FCTransportProblem_free(out);
141 return NULL;
142 }
143 }

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