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/* testTwoSetViaBKL.c */
#include "../GPart.h"
#include "../../DSTree.h"
#include "../../MSMD.h"
#include "../../BKL.h"
#include "../../ETree.h"
#include "../../Perm.h"
#include "../../IV.h"
#include "../../timings.h"
/*--------------------------------------------------------------------*/
int
main ( int argc, char *argv[] )
/*
-----------------------------------------------
read in a Graph,
read in a components IV object
find the two set partition via BKL
created -- 96oct21, cca
-----------------------------------------------
*/
{
char *inGraphFileName, *inIVfileName, *msgFileName,
*outIVfileName ;
double alpha, t1, t2 ;
double cpus[3] ;
FILE *msgFile ;
GPart *gpart ;
Graph *graph ;
int ierr, msglvl, nvtx, rc, seed ;
IV *compidsIV ;
if ( argc != 8 ) {
fprintf(stdout,
"\n\n usage : %s msglvl msgFile inGraphFile inIVfileName "
"\n seed alpha outIVfileName"
"\n msglvl -- message level"
"\n msgFile -- message file"
"\n inGraphFile -- input file, must be *.graphf or *.graphb"
"\n inIVfile -- input file, must be *.ivf or *.ivb"
"\n seed -- random number seed"
"\n alpha -- partition cost parameter"
"\n outIVfile -- output file, must be *.ivf or *.ivb"
"\n", argv[0]) ;
return(0) ;
}
msglvl = atoi(argv[1]) ;
msgFileName = argv[2] ;
if ( strcmp(msgFileName, "stdout") == 0 ) {
msgFile = stdout ;
} else if ( (msgFile = fopen(msgFileName, "a")) == NULL ) {
fprintf(stderr, "\n fatal error in %s"
"\n unable to open file %s\n",
argv[0], msgFileName) ;
return(-1) ;
}
inGraphFileName = argv[3] ;
inIVfileName = argv[4] ;
seed = atoi(argv[5]) ;
alpha = atof(argv[6]) ;
outIVfileName = argv[7] ;
fprintf(msgFile,
"\n %s : "
"\n msglvl -- %d"
"\n msgFile -- %s"
"\n inGraphFile -- %s"
"\n inIVfile -- %s"
"\n seed -- %d"
"\n alpha -- %f"
"\n outIVfile -- %s"
"\n", argv[0], msglvl, msgFileName, inGraphFileName,
inIVfileName, seed, alpha, outIVfileName) ;
fflush(msgFile) ;
/*
------------------------
read in the Graph object
------------------------
*/
if ( strcmp(inGraphFileName, "none") == 0 ) {
fprintf(msgFile, "\n no file to read from") ;
exit(0) ;
}
MARKTIME(t1) ;
graph = Graph_new() ;
Graph_setDefaultFields(graph) ;
if ( (rc = Graph_readFromFile(graph, inGraphFileName)) != 1 ) {
fprintf(msgFile, "\n return value %d from Graph_readFromFile(%p,%s)",
rc, graph, inGraphFileName) ;
exit(-1) ;
}
MARKTIME(t2) ;
fprintf(msgFile, "\n CPU %9.5f : read in graph from file %s",
t2 - t1, inGraphFileName) ;
nvtx = graph->nvtx ;
if ( msglvl < 4 ) {
Graph_writeStats(graph, msgFile) ;
fflush(msgFile) ;
} else {
Graph_writeForHumanEye(graph, msgFile) ;
fflush(msgFile) ;
}
/*
---------------------
read in the IV object
---------------------
*/
if ( strcmp(inIVfileName, "none") == 0 ) {
fprintf(msgFile, "\n no file to read from") ;
exit(0) ;
}
MARKTIME(t1) ;
compidsIV = IV_new() ;
IV_setDefaultFields(compidsIV) ;
if ( (rc = IV_readFromFile(compidsIV, inIVfileName)) != 1 ) {
fprintf(msgFile, "\n return value %d from IV_readFromFile(%p,%s)",
rc, compidsIV, inIVfileName) ;
exit(-1) ;
}
MARKTIME(t2) ;
fprintf(msgFile, "\n CPU %9.5f : read in compidsIV from file %s",
t2 - t1, inIVfileName) ;
if ( msglvl < 4 ) {
IV_writeStats(compidsIV, msgFile) ;
fflush(msgFile) ;
} else {
IV_writeForHumanEye(compidsIV, msgFile) ;
fflush(msgFile) ;
}
/*
-----------------------
create the GPart object
-----------------------
*/
MARKTIME(t1) ;
gpart = GPart_new() ;
GPart_init(gpart, graph) ;
IV_copy(&gpart->compidsIV, compidsIV) ;
GPart_setMessageInfo(gpart, msglvl, msgFile) ;
MARKTIME(t2) ;
fprintf(msgFile, "\n CPU %9.5f : GPart initialized", t2 - t1) ;
/*
--------------------------------
find an initial bisector via BKL
--------------------------------
*/
MARKTIME(t1) ;
GPart_TwoSetViaBKL(gpart, alpha, seed, cpus) ;
MARKTIME(t2) ;
fprintf(msgFile, "\n CPU %9.5f : generate bisector",
t2 - t1) ;
fprintf(msgFile, "\n initial component weights :") ;
IVfp80(msgFile, 1+gpart->ncomp, IV_entries(&gpart->cweightsIV),
30, &ierr) ;
fflush(msgFile) ;
/*
-------------------------------------------
check that we have a valid vertex separator
-------------------------------------------
*/
if ( 1 != GPart_validVtxSep(gpart) ) {
fprintf(msgFile, "\n\n WHOA : separator is not valid"
"\n\n WHOA : separator is not valid\n\n") ;
fflush(msgFile) ;
}
/*
------------------------------------------------
optionally write the compids IV object to a file
------------------------------------------------
*/
if ( strcmp(outIVfileName, "none") != 0 ) {
IV_writeToFile(&gpart->compidsIV, outIVfileName) ;
}
/*
------------------------
free the data structures
------------------------
*/
GPart_free(gpart) ;
Graph_free(graph) ;
IV_free(compidsIV) ;
fclose(msgFile) ;
return(1) ; }
/*--------------------------------------------------------------------*/
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