# Contents of /trunk/paso/src/SparseMatrix_invMain.cpp

Revision 4803 - (show annotations)
Wed Mar 26 06:52:28 2014 UTC (5 years, 10 months ago) by caltinay
File size: 3272 byte(s)
```Removed obsolete wrappers for malloc and friends.
Paso_Pattern -> paso::Pattern

```
 1 2 /***************************************************************************** 3 * 4 * Copyright (c) 2003-2014 by University of Queensland 5 6 * 7 * Primary Business: Queensland, Australia 8 * Licensed under the Open Software License version 3.0 9 10 * 11 * Development until 2012 by Earth Systems Science Computational Center (ESSCC) 12 * Development 2012-2013 by School of Earth Sciences 13 * Development from 2014 by Centre for Geoscience Computing (GeoComp) 14 * 15 *****************************************************************************/ 16 17 18 /****************************************************************************/ 19 20 /* Paso: inverts the main diagonal of a SparseMatrix: */ 21 22 /****************************************************************************/ 23 24 /* Author: Lutz Gross, l.gross@uq.edu.au */ 25 26 /****************************************************************************/ 27 28 #include "Paso.h" 29 #include "SparseMatrix.h" 30 #include "Solver.h" 31 #include "BlockOps.h" 32 #include "PasoUtil.h" 33 34 namespace paso { 35 36 void SparseMatrix_invMain(const SparseMatrix* A_p, double* inv_diag, int* pivot) 37 { 38 index_t failed=0; 39 register double A11; 40 const dim_t n=A_p->numRows; 41 const dim_t n_block=A_p->row_block_size; 42 const dim_t m_block=A_p->col_block_size; 43 const dim_t block_size=A_p->block_size; 44 dim_t i; 45 register index_t iPtr; 46 index_t* main_ptr=Pattern_borrowMainDiagonalPointer(A_p->pattern); 47 /* check matrix is square */ 48 if (m_block != n_block) { 49 Esys_setError(TYPE_ERROR, "SparseMatrix_invMain: square block size expected."); 50 } 51 if (Esys_noError()) { 52 53 if (n_block==1) { 54 #pragma omp parallel for private(i, iPtr, A11) schedule(static) 55 for (i = 0; i < n; i++) { 56 iPtr= main_ptr[i]; 57 A11=A_p->val[iPtr]; 58 if ( ABS(A11) > 0.) { 59 inv_diag[i]=1./A11; 60 } else { 61 failed=1; 62 } 63 } 64 } else if (n_block==2) { 65 #pragma omp parallel for private(i, iPtr) schedule(static) 66 for (i = 0; i < n; i++) { 67 iPtr= main_ptr[i]; 68 Paso_BlockOps_invM_2(&inv_diag[i*4], &A_p->val[iPtr*4], &failed); 69 } 70 } else if (n_block==3) { 71 #pragma omp parallel for private(i, iPtr) schedule(static) 72 for (i = 0; i < n; i++) { 73 iPtr= main_ptr[i]; 74 Paso_BlockOps_invM_3(&inv_diag[i*9], &A_p->val[iPtr*9], &failed); 75 } 76 } else { 77 #pragma omp parallel for private(i, iPtr) schedule(static) 78 for (i = 0; i < n; i++) { 79 iPtr= main_ptr[i]; 80 Paso_BlockOps_Cpy_N(block_size, &inv_diag[i*block_size], &A_p->val[iPtr*block_size]); 81 Paso_BlockOps_invM_N(n_block, &inv_diag[i*block_size], &pivot[i*n_block], &failed); 82 } 83 } 84 } 85 if (failed > 0) { 86 Esys_setError(ZERO_DIVISION_ERROR, "SparseMatrix_invMain: non-regular main diagonal block."); 87 } 88 } 89 void SparseMatrix_applyBlockMatrix(const SparseMatrix* A_p, 90 double* block_diag, 91 int* pivot, double* x, 92 const double *b) 93 { 94 dim_t n=A_p->numRows; 95 dim_t n_block=A_p->row_block_size; 96 Paso_Copy(n_block*n, x,b); 97 Paso_BlockOps_solveAll(n_block,n,block_diag,pivot,x); 98 } 99 100 } // namespace paso 101

## Properties

Name Value
svn:mergeinfo /branches/amg_from_3530/paso/src/SparseMatrix_invMain.cpp:3531-3826 /branches/lapack2681/paso/src/SparseMatrix_invMain.cpp:2682-2741 /branches/pasowrap/paso/src/SparseMatrix_invMain.cpp:3661-3674 /branches/py3_attempt2/paso/src/SparseMatrix_invMain.cpp:3871-3891 /branches/restext/paso/src/SparseMatrix_invMain.cpp:2610-2624 /branches/ripleygmg_from_3668/paso/src/SparseMatrix_invMain.cpp:3669-3791 /branches/stage3.0/paso/src/SparseMatrix_invMain.cpp:2569-2590 /branches/symbolic_from_3470/paso/src/SparseMatrix_invMain.cpp:3471-3974 /branches/symbolic_from_3470/ripley/test/python/paso/src/SparseMatrix_invMain.cpp:3517-3974 /release/3.0/paso/src/SparseMatrix_invMain.cpp:2591-2601 /trunk/paso/src/SparseMatrix_invMain.cpp:4257-4344 /trunk/ripley/test/python/paso/src/SparseMatrix_invMain.cpp:3480-3515