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/* $Id$ */ |
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/* |
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******************************************************************************** |
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* Copyright 2006 by ACcESS MNRF * |
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* * |
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* http://www.access.edu.au * |
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* Primary Business: Queensland, Australia * |
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* Licensed under the Open Software License version 3.0 * |
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* http://www.opensource.org/licenses/osl-3.0.php * |
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******************************************************************************** |
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*/ |
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/**************************************************************/ |
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/* Paso: SystemMatrix */ |
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/**************************************************************/ |
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/* Copyrights by ACcESS Australia 2003, 2004,2005 */ |
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/* Author: gross@access.edu.au */ |
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/**************************************************************/ |
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#include "Paso.h" |
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#include "SystemMatrix.h" |
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|
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/**************************************************************/ |
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|
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/* allocates a SystemMatrix of type type using the given matrix pattern |
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if type is UNKOWN CSR is used. |
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if CSC or CSC_BLK1 is used pattern has to give the CSC pattern. |
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if CSR or CSR_BLK1 is used pattern has to give the CSR pattern. |
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Values are initialized by zero. */ |
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|
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Paso_SystemMatrix* Paso_SystemMatrix_alloc(Paso_SystemMatrixType type,Paso_SystemMatrixPattern *pattern, int row_block_size, int col_block_size) { |
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double time0; |
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Paso_SystemMatrix*out=NULL; |
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dim_t n_norm,i; |
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|
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Paso_resetError(); |
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time0=Paso_timer(); |
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out=MEMALLOC(1,Paso_SystemMatrix); |
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if (! Paso_checkPtr(out)) { |
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out->pattern=NULL; |
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out->solver_package=PASO_PASO; |
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out->solver=NULL; |
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out->val=NULL; |
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out->reference_counter=1; |
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out->type=type; |
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if (type & MATRIX_FORMAT_CSC) { |
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if (type & MATRIX_FORMAT_SYM) { |
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Paso_setError(TYPE_ERROR,"Generation of matrix pattern for symmetric CSC is not implemented yet."); |
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return NULL; |
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} else { |
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if ((type & MATRIX_FORMAT_BLK1) || row_block_size!=col_block_size || col_block_size>3) { |
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if (type & MATRIX_FORMAT_OFFSET1) { |
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out->pattern=Paso_SystemMatrixPattern_unrollBlocks(pattern,PATTERN_FORMAT_OFFSET1,col_block_size,row_block_size); |
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} else { |
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out->pattern=Paso_SystemMatrixPattern_unrollBlocks(pattern,PATTERN_FORMAT_DEFAULT,col_block_size,row_block_size); |
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} |
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out->row_block_size=1; |
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out->col_block_size=1; |
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} else { |
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if ( (type & MATRIX_FORMAT_OFFSET1) ==(pattern->type & PATTERN_FORMAT_OFFSET1)) { |
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out->pattern=Paso_SystemMatrixPattern_reference(pattern); |
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} else { |
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out->pattern=Paso_SystemMatrixPattern_unrollBlocks(pattern,(type & MATRIX_FORMAT_OFFSET1)? PATTERN_FORMAT_OFFSET1: PATTERN_FORMAT_DEFAULT,1,1); |
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} |
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out->row_block_size=row_block_size; |
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out->col_block_size=col_block_size; |
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} |
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} |
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out->num_rows=out->pattern->n_index; |
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out->num_cols=out->pattern->n_ptr; |
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n_norm = out->num_cols * out->col_block_size; |
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} else { |
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if (type & MATRIX_FORMAT_SYM) { |
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Paso_setError(TYPE_ERROR,"Generation of matrix pattern for symmetric CSR is not implemented yet."); |
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return NULL; |
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} else { |
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if ((type & MATRIX_FORMAT_BLK1) || row_block_size!=col_block_size || col_block_size>3) { |
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if (type & MATRIX_FORMAT_OFFSET1) { |
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out->pattern=Paso_SystemMatrixPattern_unrollBlocks(pattern,PATTERN_FORMAT_OFFSET1,row_block_size,col_block_size); |
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} else { |
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out->pattern=Paso_SystemMatrixPattern_unrollBlocks(pattern,PATTERN_FORMAT_DEFAULT,row_block_size,col_block_size); |
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} |
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out->row_block_size=1; |
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out->col_block_size=1; |
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} else { |
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if ((type & MATRIX_FORMAT_OFFSET1)==(pattern->type & PATTERN_FORMAT_OFFSET1)) { |
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out->pattern=Paso_SystemMatrixPattern_reference(pattern); |
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} else { |
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out->pattern=Paso_SystemMatrixPattern_unrollBlocks(pattern,(type & MATRIX_FORMAT_OFFSET1)? PATTERN_FORMAT_OFFSET1: PATTERN_FORMAT_DEFAULT,1,1); |
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} |
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out->row_block_size=row_block_size; |
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out->col_block_size=col_block_size; |
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} |
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} |
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out->num_rows=out->pattern->n_index; |
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out->num_cols=out->pattern->n_ptr; |
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n_norm = out->num_cols * out->col_block_size; |
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out->num_rows=out->pattern->n_ptr; |
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out->num_cols=out->pattern->n_index; |
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n_norm = out->num_rows * out->row_block_size; |
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} |
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out->logical_row_block_size=row_block_size; |
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out->logical_col_block_size=col_block_size; |
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out->logical_block_size=out->logical_row_block_size*out->logical_block_size; |
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out->block_size=out->row_block_size*out->col_block_size; |
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out->len=(size_t)(out->pattern->len)*(size_t)(out->block_size); |
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/* allocate memory for matrix entries */ |
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out->val=MEMALLOC(out->len,double); |
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out->normalizer=MEMALLOC(n_norm,double); |
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out->normalizer_is_valid=FALSE; |
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if (! Paso_checkPtr(out->val)) { |
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Paso_SystemMatrix_setValues(out,DBLE(0)); |
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} |
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if (! Paso_checkPtr(out->normalizer)) { |
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#pragma omp parallel for private(i) schedule(static) |
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for (i=0;i<n_norm;++i) out->normalizer[i]=0.; |
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} |
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} |
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/* all done: */ |
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if (! Paso_noError()) { |
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Paso_SystemMatrix_dealloc(out); |
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return NULL; |
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} else { |
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#ifdef Paso_TRACE |
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printf("timing: system matrix %.4e sec\n",Paso_timer()-time0); |
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printf("Paso_SystemMatrix_alloc: %ld x %ld system matrix has been allocated.\n",(long)out->num_rows,(long)out->num_cols); |
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#endif |
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return out; |
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} |
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} |
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/* returns a reference to Paso_SystemMatrix in */ |
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Paso_SystemMatrix* Paso_SystemMatrix_reference(Paso_SystemMatrix* in) { |
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if (in!=NULL) ++(in->reference_counter); |
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return NULL; |
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} |
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/* deallocates a SystemMatrix: */ |
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void Paso_SystemMatrix_dealloc(Paso_SystemMatrix* in) { |
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if (in!=NULL) { |
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in->reference_counter--; |
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if (in->reference_counter<=0) { |
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MEMFREE(in->val); |
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MEMFREE(in->normalizer); |
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Paso_SystemMatrixPattern_dealloc(in->pattern); |
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Paso_solve_free(in); |
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MEMFREE(in); |
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#ifdef Paso_TRACE |
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printf("Paso_SystemMatrix_dealloc: system matrix as been deallocated.\n"); |
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#endif |
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} |
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} |
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} |
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/* |
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* $Log$ |
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* Revision 1.2 2005/09/15 03:44:38 jgs |
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* Merge of development branch dev-02 back to main trunk on 2005-09-15 |
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* |
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* Revision 1.1.2.2 2005/09/07 00:59:08 gross |
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* some inconsistent renaming fixed to make the linking work. |
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* |
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* Revision 1.1.2.1 2005/09/05 06:29:47 gross |
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* These files have been extracted from finley to define a stand alone libray for iterative |
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* linear solvers on the ALTIX. main entry through Paso_solve. this version compiles but |
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* has not been tested yet. |
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* |
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* |
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*/ |
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