1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
|
/* testDM.c */
#include "../BPG.h"
#include "../../timings.h"
/*--------------------------------------------------------------------*/
int
main ( int argc, char *argv[] )
/*
---------------------------------------------------------------
read BPG from file and get the Dulmage-Mendelsohn decomposition
created -- 96mar08, cca
---------------------------------------------------------------
*/
{
char *inBPGFileName ;
double t1, t2 ;
int ierr, msglvl, rc ;
int *dmflags, *stats ;
BPG *bpg ;
FILE *msgFile ;
if ( argc != 4 ) {
fprintf(stdout,
"\n\n usage : %s msglvl msgFile inFile "
"\n msglvl -- message level"
"\n msgFile -- message file"
"\n inFile -- input file, must be *.bpgf or *.bpgb"
"\n", argv[0]) ;
return(0) ;
}
msglvl = atoi(argv[1]) ;
if ( strcmp(argv[2], "stdout") == 0 ) {
msgFile = stdout ;
} else if ( (msgFile = fopen(argv[2], "a")) == NULL ) {
fprintf(stderr, "\n fatal error in %s"
"\n unable to open file %s\n",
argv[0], argv[2]) ;
return(-1) ;
}
inBPGFileName = argv[3] ;
fprintf(msgFile,
"\n %s "
"\n msglvl -- %d"
"\n msgFile -- %s"
"\n inFile -- %s"
"\n",
argv[0], msglvl, argv[2], inBPGFileName) ;
fflush(msgFile) ;
/*
----------------------
read in the BPG object
----------------------
*/
if ( strcmp(inBPGFileName, "none") == 0 ) {
fprintf(msgFile, "\n no file to read from") ;
exit(0) ;
}
bpg = BPG_new() ;
MARKTIME(t1) ;
rc = BPG_readFromFile(bpg, inBPGFileName) ;
MARKTIME(t2) ;
fprintf(msgFile, "\n CPU %9.5f : read in graph from file %s",
t2 - t1, inBPGFileName) ;
if ( rc != 1 ) {
fprintf(msgFile, "\n return value %d from BPG_readFromFile(%p,%s)",
rc, bpg, inBPGFileName) ;
exit(-1) ;
}
fprintf(msgFile, "\n\n after reading BPG object from file %s",
inBPGFileName) ;
if ( msglvl > 2 ) {
BPG_writeForHumanEye(bpg, msgFile) ;
} else {
BPG_writeStats(bpg, msgFile) ;
}
fflush(msgFile) ;
/*
--------------------------------------------
test out the max flow DMdecomposition method
--------------------------------------------
*/
dmflags = IVinit(bpg->nX + bpg->nY, -1) ;
stats = IVinit(6, 0) ;
MARKTIME(t1) ;
BPG_DMviaMaxFlow(bpg, dmflags, stats, msglvl, msgFile) ;
MARKTIME(t2) ;
fprintf(msgFile, "\n\n CPU %9.5f : find DM via maxflow", t2 - t1) ;
if ( msglvl > 0 ) {
fprintf(msgFile,
"\n\n BPG_DMviaMaxFlow"
"\n |X_I| = %6d, |X_E| = %6d, |X_R| = %6d"
"\n |Y_I| = %6d, |Y_E| = %6d, |Y_R| = %6d",
stats[0], stats[1], stats[2],
stats[3], stats[4], stats[5]) ;
}
if ( msglvl > 1 ) {
fprintf(msgFile, "\n dmflags") ;
IVfp80(msgFile, bpg->nX + bpg->nY, dmflags, 80, &ierr) ;
fflush(msgFile) ;
}
/*
------------------------------------------
test out the matching DMcomposition method
------------------------------------------
*/
IVfill(bpg->nX + bpg->nY, dmflags, -1) ;
IVfill(6, stats, -1) ;
MARKTIME(t1) ;
BPG_DMdecomposition(bpg, dmflags, stats, msglvl, msgFile) ;
MARKTIME(t2) ;
fprintf(msgFile, "\n\n CPU %9.5f : find DM via matching", t2 - t1) ;
if ( msglvl > 0 ) {
fprintf(msgFile,
"\n\n BPG_DMdecomposition"
"\n |X_I| = %6d, |X_E| = %6d, |X_R| = %6d"
"\n |Y_I| = %6d, |Y_E| = %6d, |Y_R| = %6d",
stats[0], stats[1], stats[2],
stats[3], stats[4], stats[5]) ;
}
if ( msglvl > 1 ) {
fprintf(msgFile, "\n dmflags") ;
IVfp80(msgFile, bpg->nX + bpg->nY, dmflags, 80, &ierr) ;
fflush(msgFile) ;
}
/*
----------------
free the storage
----------------
*/
IVfree(dmflags) ;
IVfree(stats) ;
BPG_free(bpg) ;
fprintf(msgFile, "\n") ;
fclose(msgFile) ;
return(1) ; }
/*--------------------------------------------------------------------*/
|
