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/* testSmooth4.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[] )
/*
------------------------------------------
(1) read in a Graph,
(2) read in a 2-set partition
(3) smooth the separator
(4) optionally write out new partition
created -- 96oct21, cca
------------------------------------------
*/
{
char *inGraphFileName, *inIVfileName,
*msgFileName, *outIVfileName ;
double alpha, cost, t1, t2 ;
FILE *msgFile ;
GPart *gpart ;
Graph *graph ;
int ierr, msglvl, option, nvtx, rc ;
IV *tagsIV ;
if ( argc != 8 ) {
fprintf(stdout,
"\n\n usage : %s msglvl msgFile inGraphFile inIVfile "
"\n option alpha outIVfile"
"\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 option -- smoothing option"
"\n 1 --> bipartite 2-layers"
"\n 2 --> non-bipartite 2-layers"
"\n k > 2 --> k/2 layers on each side"
"\n alpha -- cost function 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] ;
option = 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 option -- %d"
"\n alpha -- %f"
"\n outIVfile -- %s"
"\n", argv[0], msglvl,
msgFileName, inGraphFileName, inIVfileName,
option, 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) ;
tagsIV = IV_new() ;
IV_setDefaultFields(tagsIV) ;
if ( (rc = IV_readFromFile(tagsIV, inIVfileName)) != 1 ) {
fprintf(msgFile, "\n return value %d from IV_readFromFile(%p,%s)",
rc, tagsIV, inIVfileName) ;
exit(-1) ;
}
MARKTIME(t2) ;
fprintf(msgFile, "\n CPU %9.5f : read in tagsIV from file %s",
t2 - t1, inIVfileName) ;
nvtx = IV_size(tagsIV) ;
if ( msglvl < 4 ) {
IV_writeStats(tagsIV, msgFile) ;
fflush(msgFile) ;
} else {
IV_writeForHumanEye(tagsIV, msgFile) ;
fflush(msgFile) ;
}
/*
-----------------------
create the GPart object
-----------------------
*/
MARKTIME(t1) ;
gpart = GPart_new() ;
GPart_init(gpart, graph) ;
GPart_setMessageInfo(gpart, msglvl, msgFile) ;
IV_copy(&gpart->compidsIV, tagsIV) ;
GPart_setCweights(gpart) ;
MARKTIME(t2) ;
fprintf(msgFile, "\n CPU %9.5f : GPart initialized", t2 - t1) ;
fprintf(msgFile, "\n cweights : ") ;
IVfp80(msgFile, 1 + gpart->ncomp, IV_entries(&gpart->cweightsIV),
30, &ierr) ;
fflush(msgFile) ;
if ( msglvl > 0 ) {
int wB, wS, wW ;
int *cweights = IV_entries(&gpart->cweightsIV) ;
fprintf(msgFile, "\n initial component weights :") ;
IVfp80(msgFile, 1+gpart->ncomp, cweights, 20, &ierr) ;
wS = cweights[0] ;
wB = cweights[1] ;
wW = cweights[2] ;
if ( wB < wW ) {
wB = wW ;
wW = cweights[1] ;
}
cost = wS*(1. + (alpha*wB)/wW) ;
fprintf(msgFile,
"\n initial |S| = %d , balance = %6.3f , cpu = %8.3f , cost = %8.1f\n",
wS, ((double) wB)/wW, t2 - t1, cost) ;
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) ;
}
/*
--------------------
smooth the separator
--------------------
*/
MARKTIME(t1) ;
if ( option <= 2 ) {
if ( msglvl > 1 ) {
fprintf(msgFile,
"\n calling GPart_smoothBy2layers with option %d",
option) ;
fflush(stdout) ;
}
GPart_smoothBy2layers(gpart, option, alpha) ;
} else {
if ( msglvl > 1 ) {
fprintf(msgFile,
"\n calling GPart_smoothBisector with option %d",
option/2) ;
fflush(stdout) ;
}
GPart_smoothBisector(gpart, option/2, alpha) ;
}
MARKTIME(t2) ;
fprintf(msgFile, "\n\n CPU %9.5f : improve bisector", t2 - t1) ;
if ( msglvl > 0 ) {
int wB, wS, wW ;
int *cweights = IV_entries(&gpart->cweightsIV) ;
fprintf(msgFile, "\n final component weights :") ;
IVfp80(msgFile, 1+gpart->ncomp, cweights, 20, &ierr) ;
wS = cweights[0] ;
wB = cweights[1] ;
wW = cweights[2] ;
if ( wB < wW ) {
wB = wW ;
wW = cweights[1] ;
}
cost = wS*(1. + (alpha*wB)/wW) ;
fprintf(msgFile,
"\n final |S| = %d , balance = %6.3f , cpu = %8.3f , cost = %8.1f\n",
wS, ((double) wB)/wW, t2 - t1, cost) ;
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 tags file out to disk
------------------------------------------
*/
if ( strcmp(outIVfileName, "none") != 0 ) {
IV_writeToFile(&gpart->compidsIV, outIVfileName) ;
}
/*
------------------------
free the data structures
------------------------
*/
GPart_free(gpart) ;
Graph_free(graph) ;
IV_free(tagsIV) ;
fclose(msgFile) ;
return(1) ; }
/*--------------------------------------------------------------------*/
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