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

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Revision 2659 - (show annotations)
Thu Sep 10 03:54:50 2009 UTC (10 years, 1 month ago) by artak
File MIME type: text/plain
File size: 2152 byte(s)
first attempt of AMG on blocks
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: returns the matrix format requested by a particular linear solver */
18
19 /**************************************************************/
20
21 /* Copyrights by ACcESS Australia 2004,2005 */
22 /* Author: Lutz Gross, l.gross@uq.edu.au */
23
24 /**************************************************************/
25
26 #include "Paso.h"
27 #include "Options.h"
28 #include "SystemMatrix.h"
29
30 /**************************************************************/
31
32 index_t Paso_SystemMatrix_getSystemMatrixTypeId(const index_t solver,const index_t preconditioner, const index_t package,const bool_t symmetry, Paso_MPIInfo *mpi_info) {
33 index_t true_package;
34 index_t out=MATRIX_FORMAT_DEFAULT;
35 true_package=Paso_Options_getPackage(solver,package,symmetry, mpi_info);
36
37 switch(true_package) {
38
39 case PASO_PASO:
40 /* AMG on blocksize > 1 not supported yet */
41 /*if (preconditioner == PASO_AMG) {
42 out=MATRIX_FORMAT_DEFAULT + MATRIX_FORMAT_BLK1;
43 } else {
44 */
45 out=MATRIX_FORMAT_DEFAULT;
46 /*}*/
47 break;
48
49
50 case PASO_MKL:
51 out=MATRIX_FORMAT_BLK1 + MATRIX_FORMAT_OFFSET1;
52 /* if (solver == PASO_CHOLEVSKY) out+=MATRIX_FORMAT_SYM */
53 break;
54
55 case PASO_UMFPACK:
56 if (mpi_info->size > 1) {
57 Paso_setError(VALUE_ERROR,"The selected solver UMFPACK requires CSC format which is not supported with MPI.");
58 return -1;
59 }
60 out=MATRIX_FORMAT_CSC + MATRIX_FORMAT_BLK1;
61 break;
62
63 case PASO_TRILINOS:
64 out=MATRIX_FORMAT_TRILINOS_CRS + MATRIX_FORMAT_BLK1; /* Distributed CRS */
65 break;
66
67 default:
68 Paso_setError(VALUE_ERROR,"unknown package code");
69 }
70 return out;
71 }

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