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
|
/*
* Copyright 1997, Regents of the University of Minnesota
*
* mesh2nodal.c
*
* This file reads in the element node connectivity array of a mesh and writes
* out its dual in the format suitable for Metis.
*
* Started 9/29/97
* George
*
* $Id: mesh2nodal.c,v 1.1 1998/11/27 17:59:35 karypis Exp $
*
*/
#include <metis.h>
/*************************************************************************
* Let the game begin
**************************************************************************/
main(long argc, char *argv[])
{
long i, j, ne, nn, etype, numflag=0;
idxtype *elmnts, *xadj, *adjncy;
timer IOTmr, DUALTmr;
char fileout[256], etypestr[4][5] = {"TRI", "TET", "HEX", "QUAD"};
if (argc != 2) {
printf("Usage: %s <meshfile>\n",argv[0]);
exit(4);
}
cleartimer(IOTmr);
cleartimer(DUALTmr);
starttimer(IOTmr);
elmnts = ReadMesh(argv[1], &ne, &nn, &etype);
stoptimer(IOTmr);
printf("**********************************************************************\n");
printf("%s", METISTITLE);
printf("Mesh Information ----------------------------------------------------\n");
printf(" Name: %s, #Elements: %ld, #Nodes: %ld, Etype: %s\n\n", argv[1], ne, nn, etypestr[etype-1]);
printf("Forming Nodal Graph... ----------------------------------------------\n");
xadj = idxmalloc(nn+1, "main: xadj");
adjncy = idxmalloc(20*nn, "main: adjncy");
starttimer(DUALTmr);
METIS_MeshToNodal(&ne, &nn, elmnts, &etype, &numflag, xadj, adjncy);
stoptimer(DUALTmr);
printf(" Nodal Information: #Vertices: %ld, #Edges: %ld\n", nn, xadj[nn]/2);
sprintf(fileout, "%s.ngraph", argv[1]);
starttimer(IOTmr);
WriteGraph(fileout, nn, xadj, adjncy);
stoptimer(IOTmr);
printf("\nTiming Information --------------------------------------------------\n");
printf(" I/O: \t\t %7.3f\n", gettimer(IOTmr));
printf(" Nodal Creation:\t\t %7.3f\n", gettimer(DUALTmr));
printf("**********************************************************************\n");
GKfree(&elmnts, &xadj, &adjncy, LTERM);
}
|
