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

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Revision 2551 - (show annotations)
Thu Jul 23 09:19:15 2009 UTC (10 years, 3 months ago) by gross
File MIME type: text/plain
File size: 9316 byte(s)
a problem with the sparse matrix unrolling fixed.
1
2 /*******************************************************
3 *
4 * Copyright (c) 2003-2009 by University of Queensland
5 * Earth Systems Science Computational Center (ESSCC)
6 * http://www.uq.edu.au/esscc
7 *
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
17 /* Paso: SystemMatrix */
18
19 /**************************************************************/
20
21 /* Author: gross@access.edu.au */
22
23 /**************************************************************/
24
25 #include "SystemMatrix.h"
26
27 /**************************************************************/
28
29 /* allocates a SystemMatrix of type type using the given matrix pattern
30 Values are initialized by zero.
31 if patternIsUnrolled and type & MATRIX_FORMAT_BLK1, it is assumed that the pattern is allready unrolled to match the requested block size
32 and offsets otherwise unrolling and offset adjustment will be performed.
33 */
34
35 Paso_SystemMatrix* Paso_SystemMatrix_alloc(Paso_SystemMatrixType type,Paso_SystemMatrixPattern *pattern, int row_block_size, int col_block_size,
36 const bool_t patternIsUnrolled) {
37
38 Paso_SystemMatrix*out=NULL;
39 dim_t n_norm,i;
40 Paso_SystemMatrixType pattern_format_out;
41 bool_t unroll=FALSE;
42
43 pattern_format_out= (type & MATRIX_FORMAT_OFFSET1)? PATTERN_FORMAT_OFFSET1: PATTERN_FORMAT_DEFAULT;
44 Paso_resetError();
45 if (type & MATRIX_FORMAT_SYM) {
46 Paso_setError(TYPE_ERROR,"Paso_SystemMatrix_alloc: Symmetric matrix patterns are not supported.");
47 return NULL;
48 }
49 if (patternIsUnrolled) {
50 if ( (type & MATRIX_FORMAT_OFFSET1) != ( pattern->type & PATTERN_FORMAT_OFFSET1) ) {
51 Paso_setError(TYPE_ERROR,"Paso_SystemMatrix_alloc: requested offset and pattern offset does not match.");
52 return NULL;
53 }
54 }
55 /* do we need to apply unrolling ? */
56 unroll
57 /* we don't like non-square blocks */
58 = (row_block_size!=col_block_size)
59 /* or any block size bigger than 3 */
60 || (col_block_size>3)
61 /* or if lock size one requested and the block size is not 1 */
62 || ((type & MATRIX_FORMAT_BLK1) && (col_block_size>1) ) ;
63
64 out=MEMALLOC(1,Paso_SystemMatrix);
65 if (! Paso_checkPtr(out)) {
66 out->type=type;
67 out->pattern=NULL;
68 out->row_distribution=NULL;
69 out->col_distribution=NULL;
70 out->mpi_info=Paso_MPIInfo_getReference(pattern->mpi_info);
71 out->row_coupler=NULL;
72 out->col_coupler=NULL;
73 out->mainBlock=NULL;
74 out->row_coupleBlock=NULL;
75 out->col_coupleBlock=NULL;
76 out->normalizer_is_valid=FALSE;
77 out->normalizer=NULL;
78 out->solver_package=PASO_PASO;
79 out->solver=NULL;
80 out->trilinos_data=NULL;
81 out->reference_counter=1;
82 out->logical_row_block_size=row_block_size;
83 out->logical_col_block_size=col_block_size;
84
85
86 if (type & MATRIX_FORMAT_CSC) {
87 if (unroll) {
88 if (patternIsUnrolled) {
89 out->pattern=Paso_SystemMatrixPattern_getReference(pattern);
90 } else {
91 out->pattern=Paso_SystemMatrixPattern_unrollBlocks(pattern,pattern_format_out,col_block_size,row_block_size);
92 }
93 out->row_block_size=1;
94 out->col_block_size=1;
95 } else {
96 out->pattern=Paso_SystemMatrixPattern_unrollBlocks(pattern,pattern_format_out,1,1);
97 out->row_block_size=row_block_size;
98 out->col_block_size=col_block_size;
99 }
100 if (Paso_noError()) {
101 out->row_distribution=Paso_Distribution_getReference(out->pattern->input_distribution);
102 out->col_distribution=Paso_Distribution_getReference(out->pattern->output_distribution);
103 }
104 } else {
105 if (unroll) {
106 if (patternIsUnrolled) {
107 out->pattern=Paso_SystemMatrixPattern_getReference(pattern);
108 } else {
109 out->pattern=Paso_SystemMatrixPattern_unrollBlocks(pattern,pattern_format_out,row_block_size,col_block_size);
110 }
111 out->row_block_size=1;
112 out->col_block_size=1;
113 } else {
114 out->pattern=Paso_SystemMatrixPattern_unrollBlocks(pattern,pattern_format_out,1,1);
115 out->row_block_size=row_block_size;
116 out->col_block_size=col_block_size;
117 }
118 if (Paso_noError()) {
119 out->row_distribution=Paso_Distribution_getReference(out->pattern->output_distribution);
120 out->col_distribution=Paso_Distribution_getReference(out->pattern->input_distribution);
121 }
122 }
123 if (Paso_noError()) {
124 out->block_size=out->row_block_size*out->col_block_size;
125 out->col_coupler=Paso_Coupler_alloc(pattern->col_connector,out->col_block_size);
126 out->row_coupler=Paso_Coupler_alloc(pattern->row_connector,out->row_block_size);
127 /* this should be bypassed if trilinos is used */
128 if (type & MATRIX_FORMAT_TRILINOS_CRS) {
129 #ifdef TRILINOS
130 out->trilinos_data=Paso_TRILINOS_alloc();
131 #endif
132 } else {
133 out->solver_package=PASO_PASO;
134 out->mainBlock=Paso_SparseMatrix_alloc(type,out->pattern->mainPattern,row_block_size,col_block_size,TRUE);
135 out->col_coupleBlock=Paso_SparseMatrix_alloc(type,out->pattern->col_couplePattern,row_block_size,col_block_size,TRUE);
136 out->row_coupleBlock=Paso_SparseMatrix_alloc(type,out->pattern->row_couplePattern,row_block_size,col_block_size,TRUE);
137 if (Paso_noError()) {
138 /* allocate memory for matrix entries */
139 if (type & MATRIX_FORMAT_CSC) {
140 n_norm = out->mainBlock->numCols * out->col_block_size;
141 } else {
142 n_norm = out->mainBlock->numRows * out->row_block_size;
143 }
144 out->normalizer=MEMALLOC(n_norm,double);
145 out->normalizer_is_valid=FALSE;
146 if (! Paso_checkPtr(out->normalizer)) {
147 #pragma omp parallel for private(i) schedule(static)
148 for (i=0;i<n_norm;++i) out->normalizer[i]=0.;
149 }
150 }
151 }
152 }
153 }
154 /* all done: */
155 if (! Paso_noError()) {
156 Paso_SystemMatrix_free(out);
157 return NULL;
158 } else {
159 return out;
160 }
161 }
162
163 /* returns a reference to Paso_SystemMatrix in */
164
165 Paso_SystemMatrix* Paso_SystemMatrix_getReference(Paso_SystemMatrix* in) {
166 if (in!=NULL) ++(in->reference_counter);
167 return in;
168 }
169
170 /* deallocates a SystemMatrix: */
171
172 void Paso_SystemMatrix_free(Paso_SystemMatrix* in) {
173 if (in!=NULL) {
174 in->reference_counter--;
175 if (in->reference_counter<=0) {
176 Paso_SystemMatrixPattern_free(in->pattern);
177 Paso_Distribution_free(in->row_distribution);
178 Paso_Distribution_free(in->col_distribution);
179 Paso_MPIInfo_free(in->mpi_info);
180 Paso_Coupler_free(in->row_coupler);
181 Paso_Coupler_free(in->col_coupler);
182 Paso_SparseMatrix_free(in->mainBlock);
183 Paso_SparseMatrix_free(in->col_coupleBlock);
184 Paso_SparseMatrix_free(in->row_coupleBlock);
185 MEMFREE(in->normalizer);
186 Paso_solve_free(in);
187 #ifdef TRILINOS
188 Paso_TRILINOS_free(in->trilinos_data);
189 #endif
190 MEMFREE(in);
191 #ifdef Paso_TRACE
192 printf("Paso_SystemMatrix_free: system matrix as been deallocated.\n");
193 #endif
194 }
195 }
196 }
197 void Paso_SystemMatrix_startCollect(Paso_SystemMatrix* A,const double* in)
198 {
199 Paso_SystemMatrix_startColCollect(A,in);
200 }
201 double* Paso_SystemMatrix_finishCollect(Paso_SystemMatrix* A)
202 {
203 return Paso_SystemMatrix_finishColCollect(A);
204 }
205
206 void Paso_SystemMatrix_startColCollect(Paso_SystemMatrix* A,const double* in)
207 {
208 Paso_Coupler_startCollect(A->col_coupler, in);
209 }
210 double* Paso_SystemMatrix_finishColCollect(Paso_SystemMatrix* A)
211 {
212 Paso_Coupler_finishCollect(A->col_coupler);
213 return A->col_coupler->recv_buffer;
214 }
215 void Paso_SystemMatrix_startRowCollect(Paso_SystemMatrix* A,const double* in)
216 {
217 Paso_Coupler_startCollect(A->row_coupler, in);
218 }
219 double* Paso_SystemMatrix_finishRowCollect(Paso_SystemMatrix* A)
220 {
221 Paso_Coupler_finishCollect(A->row_coupler);
222 return A->row_coupler->recv_buffer;
223 }
224
225 dim_t Paso_SystemMatrix_getTotalNumRows(const Paso_SystemMatrix* A){
226 return A->mainBlock->numRows * A->row_block_size;
227 }
228
229 dim_t Paso_SystemMatrix_getTotalNumCols(const Paso_SystemMatrix* A){
230 return A->mainBlock->numCols * A->col_block_size;
231 }
232 dim_t Paso_SystemMatrix_getGlobalNumRows(Paso_SystemMatrix* A) {
233 if (A->type & MATRIX_FORMAT_CSC) {
234 return Paso_Distribution_getGlobalNumComponents(A->pattern->input_distribution);
235 } else {
236 return Paso_Distribution_getGlobalNumComponents(A->pattern->output_distribution);
237 }
238 }
239 dim_t Paso_SystemMatrix_getGlobalNumCols(Paso_SystemMatrix* A) {
240 if (A->type & MATRIX_FORMAT_CSC) {
241 return Paso_Distribution_getGlobalNumComponents(A->pattern->output_distribution);
242 } else {
243 return Paso_Distribution_getGlobalNumComponents(A->pattern->input_distribution);
244 }
245
246 }
247 dim_t Paso_SystemMatrix_getNumOutput(Paso_SystemMatrix* A) {
248 return Paso_SystemMatrixPattern_getNumOutput(A->pattern);
249 }
250

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