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/* $Id$ */ |
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|
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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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/**************************************************************/ |
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|
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/* Paso: SystemMatrixPatternPattern */ |
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|
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/**************************************************************/ |
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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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/**************************************************************/ |
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|
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#include "Paso.h" |
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#include "SystemMatrixPattern.h" |
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|
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/**************************************************************/ |
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|
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/* allocates a SystemMatrixPattern */ |
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|
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Paso_SystemMatrixPattern* Paso_SystemMatrixPattern_alloc(int type, int n_ptr, index_t* ptr,index_t* index) { |
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Paso_SystemMatrixPattern*out; |
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index_t index_offset=(type & PATTERN_FORMAT_OFFSET1 ? 1:0); |
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index_t loc_min_index,loc_max_index,min_index=index_offset,max_index=index_offset-1; |
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dim_t i; |
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Paso_resetError(); |
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|
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if (type & PATTERN_FORMAT_SYM) { |
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Paso_setError(TYPE_ERROR,"symmetric matrix pattern is not supported yet"); |
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return NULL; |
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} |
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#pragma omp parallel private(loc_min_index,loc_max_index,i) |
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{ |
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loc_min_index=index_offset; |
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loc_max_index=index_offset-1; |
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if (type & PATTERN_FORMAT_OFFSET1) { |
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#pragma omp for schedule(static) |
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for (i=0;i<n_ptr;++i) { |
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if (ptr[i]<ptr[i+1]) { |
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qsort(&(index[ptr[i]-1]),(size_t)(ptr[i+1]-ptr[i]),sizeof(index_t),Paso_comparIndex); |
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loc_min_index=MIN(loc_min_index,index[ptr[i]-1]); |
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loc_max_index=MAX(loc_max_index,index[ptr[i+1]-2]); |
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} |
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} |
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} else { |
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#pragma omp for schedule(static) |
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for (i=0;i<n_ptr;++i) { |
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if (ptr[i]<ptr[i+1]) { |
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#ifdef USE_QSORTG |
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qsortG(&(index[ptr[i]]),(size_t)(ptr[i+1]-ptr[i]),sizeof(index_t),Paso_comparIndex); |
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#else |
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qsort(&(index[ptr[i]]),(size_t)(ptr[i+1]-ptr[i]),sizeof(index_t),Paso_comparIndex); |
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#endif |
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loc_min_index=MIN(loc_min_index,index[ptr[i]]); |
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loc_max_index=MAX(loc_max_index,index[ptr[i+1]-1]); |
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} |
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} |
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} |
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#pragma omp critical |
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{ |
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min_index=MIN(loc_min_index,min_index); |
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max_index=MAX(loc_max_index,max_index); |
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} |
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} |
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if (min_index<index_offset) { |
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Paso_setError(TYPE_ERROR,"Matrix pattern index out of range."); |
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return NULL; |
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} |
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|
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out=MEMALLOC(1,Paso_SystemMatrixPattern); |
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if (Paso_checkPtr(out)) return NULL; |
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out->n_ptr=n_ptr; |
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out->n_index=max_index-index_offset+1; |
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out->ptr=ptr; |
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out->index=index; |
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out->len=out->ptr[out->n_ptr]-index_offset; |
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out->reference_counter=1; |
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out->type=type; |
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#ifdef Paso_TRACE |
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printf("Paso_SystemMatrixPattern_dealloc: system matrix pattern as been allocated.\n"); |
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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 in */ |
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|
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Paso_SystemMatrixPattern* Paso_SystemMatrixPattern_reference(Paso_SystemMatrixPattern* in) { |
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if (in!=NULL) { |
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++(in->reference_counter); |
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} |
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return in; |
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} |
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|
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/* deallocates a SystemMatrixPattern: */ |
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|
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void Paso_SystemMatrixPattern_dealloc(Paso_SystemMatrixPattern* 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->ptr); |
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MEMFREE(in->index); |
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MEMFREE(in); |
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#ifdef Paso_TRACE |
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printf("Paso_SystemMatrixPattern_dealloc: system matrix pattern 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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|
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/* some routines which help to get the matrix pattern from elements: */ |
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|
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/* this routine is used by qsort called in Paso_SystemMatrixPattern_alloc */ |
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|
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int Paso_comparIndex(const void *index1,const void *index2){ |
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index_t Iindex1,Iindex2; |
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Iindex1=*(index_t*)index1; |
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Iindex2=*(index_t*)index2; |
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if (Iindex1<Iindex2) { |
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return -1; |
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} else { |
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if (Iindex1>Iindex2) { |
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return 1; |
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} else { |
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return 0; |
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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 1.1.2.1 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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