COIN-OR::LEMON - Graph Library

source: glpk-cmake/src/glphbm.h @ 1:c445c931472f

Last change on this file since 1:c445c931472f was 1:c445c931472f, checked in by Alpar Juttner <alpar@…>, 10 years ago

Import glpk-4.45

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1/* glphbm.h (Harwell-Boeing sparse matrix format) */
2
3/***********************************************************************
4*  This code is part of GLPK (GNU Linear Programming Kit).
5*
6*  Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
7*  2009, 2010 Andrew Makhorin, Department for Applied Informatics,
8*  Moscow Aviation Institute, Moscow, Russia. All rights reserved.
9*  E-mail: <mao@gnu.org>.
10*
11*  GLPK is free software: you can redistribute it and/or modify it
12*  under the terms of the GNU General Public License as published by
13*  the Free Software Foundation, either version 3 of the License, or
14*  (at your option) any later version.
15*
16*  GLPK is distributed in the hope that it will be useful, but WITHOUT
17*  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
18*  or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
19*  License for more details.
20*
21*  You should have received a copy of the GNU General Public License
22*  along with GLPK. If not, see <http://www.gnu.org/licenses/>.
23***********************************************************************/
24
25#ifndef GLPHBM_H
26#define GLPHBM_H
27
28typedef struct HBM HBM;
29
30struct HBM
31{     /* sparse matrix in Harwell-Boeing format; for details see the
32         report: I.S.Duff, R.G.Grimes, J.G.Lewis. User's Guide for the
33         Harwell-Boeing Sparse Matrix Collection (Release I), 1992 */
34      char title[72+1];
35      /* matrix title (informative) */
36      char key[8+1];
37      /* matrix key (informative) */
38      char mxtype[3+1];
39      /* matrix type:
40         R.. real matrix
41         C.. complex matrix
42         P.. pattern only (no numerical values supplied)
43         .S. symmetric (lower triangle + main diagonal)
44         .U. unsymmetric
45         .H. hermitian (lower triangle + main diagonal)
46         .Z. skew symmetric (lower triangle only)
47         .R. rectangular
48         ..A assembled
49         ..E elemental (unassembled) */
50      char rhstyp[3+1];
51      /* optional types:
52         F.. right-hand sides in dense format
53         M.. right-hand sides in same format as matrix
54         .G. starting vector(s) (guess) is supplied
55         ..X exact solution vector(s) is supplied */
56      char ptrfmt[16+1];
57      /* format for pointers */
58      char indfmt[16+1];
59      /* format for row (or variable) indices */
60      char valfmt[20+1];
61      /* format for numerical values of coefficient matrix */
62      char rhsfmt[20+1];
63      /* format for numerical values of right-hand sides */
64      int totcrd;
65      /* total number of cards excluding header */
66      int ptrcrd;
67      /* number of cards for ponters */
68      int indcrd;
69      /* number of cards for row (or variable) indices */
70      int valcrd;
71      /* number of cards for numerical values */
72      int rhscrd;
73      /* number of lines for right-hand sides;
74         including starting guesses and solution vectors if present;
75         zero indicates no right-hand side data is present */
76      int nrow;
77      /* number of rows (or variables) */
78      int ncol;
79      /* number of columns (or elements) */
80      int nnzero;
81      /* number of row (or variable) indices;
82         equal to number of entries for assembled matrix */
83      int neltvl;
84      /* number of elemental matrix entries;
85         zero in case of assembled matrix */
86      int nrhs;
87      /* number of right-hand sides */
88      int nrhsix;
89      /* number of row indices;
90         ignored in case of unassembled matrix */
91      int nrhsvl;
92      /* total number of entries in all right-hand sides */
93      int nguess;
94      /* total number of entries in all starting guesses */
95      int nexact;
96      /* total number of entries in all solution vectors */
97      int *colptr; /* alias: eltptr */
98      /* column pointers (in case of assembled matrix);
99         elemental matrix pointers (in case of unassembled matrix) */
100      int *rowind; /* alias: varind */
101      /* row indices (in case of assembled matrix);
102         variable indices (in case of unassembled matrix) */
103      int *rhsptr;
104      /* right-hand side pointers */
105      int *rhsind;
106      /* right-hand side indices */
107      double *values;
108      /* matrix values */
109      double *rhsval;
110      /* right-hand side values */
111      double *sguess;
112      /* starting guess values */
113      double *xexact;
114      /* solution vector values */
115};
116
117#define hbm_read_mat _glp_hbm_read_mat
118HBM *hbm_read_mat(const char *fname);
119/* read sparse matrix in Harwell-Boeing format */
120
121#define hbm_free_mat _glp_hbm_free_mat
122void hbm_free_mat(HBM *hbm);
123/* free sparse matrix in Harwell-Boeing format */
124
125#endif
126
127/* eof */
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