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/* writeAIJ.c */
#include "../Graph.h"
#include "../../Drand.h"
#include "../../timings.h"
/*--------------------------------------------------------------------*/
int
main ( int argc, char *argv[] )
/*
-------------------------------------------------
read in a Graph and write out an AIJ file
nrow ncol nent
row col entry
...
created -- 98dec05, cca
-------------------------------------------------
*/
{
char *inGraphFileName, *outFileName ;
double t1, t2 ;
Drand *drand ;
int ii, msglvl, nedges, nvtx, rc, v, vsize, w ;
int *vadj ;
Graph *graph ;
FILE *msgFile, *outFile ;
if ( argc != 5 ) {
fprintf(stdout,
"\n\n usage : %s msglvl msgFile inFile outFileName"
"\n msglvl -- message level"
"\n msgFile -- message file"
"\n inFile -- input file, must be *.graphf or *.graphb"
"\n outFile -- output file"
"\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) ;
}
inGraphFileName = argv[3] ;
outFileName = argv[4] ;
fprintf(msgFile,
"\n %s "
"\n msglvl -- %d"
"\n msgFile -- %s"
"\n inFile -- %s"
"\n outFile -- %s"
"\n",
argv[0], msglvl, argv[2], inGraphFileName, outFileName) ;
fflush(msgFile) ;
/*
----------------------
read in the Graph object
----------------------
*/
if ( strcmp(inGraphFileName, "none") == 0 ) {
fprintf(msgFile, "\n no file to read from") ;
exit(0) ;
}
graph = Graph_new() ;
MARKTIME(t1) ;
rc = Graph_readFromFile(graph, inGraphFileName) ;
MARKTIME(t2) ;
fprintf(msgFile, "\n CPU %9.5f : read in graph from file %s",
t2 - t1, inGraphFileName) ;
if ( rc != 1 ) {
fprintf(msgFile, "\n return value %d from Graph_readFromFile(%p,%s)",
rc, graph, inGraphFileName) ;
exit(-1) ;
}
fprintf(msgFile, "\n\n after reading Graph object from file %s",
inGraphFileName) ;
if ( msglvl > 2 ) {
Graph_writeForHumanEye(graph, msgFile) ;
} else {
Graph_writeStats(graph, msgFile) ;
}
fflush(msgFile) ;
/*
--------------------------------------
initialize the random number generator
--------------------------------------
*/
drand = Drand_new();
Drand_setSeed(drand, 47) ;
Drand_setUniform(drand, -1., 1.) ;
/*
--------------------------
write out the AIJ entries
--------------------------
*/
if ( strcmp(outFileName, "stdout") == 0 ) {
outFile = stdout ;
} else if ( (outFile = fopen(outFileName, "w")) == NULL ) {
fprintf(stderr, "\n fatal error in %s"
"\n unable to open file %s\n", argv[0], outFile) ;
return(-1) ;
}
nvtx = graph->nvtx ;
nedges = graph->nedges ;
fprintf(outFile, "\n %d %d %d", nvtx, nvtx, nvtx + (nedges-nvtx)/2) ;
for ( v = 0 ; v < nvtx ; v++ ) {
Graph_adjAndSize(graph, v, &vsize, &vadj) ;
for ( ii = 0 ; ii < vsize ; ii++ ) {
w = vadj[ii] ;
if ( v <= w ) {
fprintf(outFile,
"\n %8d %8d %20.12e", v, w, Drand_value(drand)) ;
}
}
}
fclose(outFile) ;
/*
---------------------
free the Graph object
---------------------
*/
Graph_free(graph) ;
fprintf(msgFile, "\n") ;
fclose(msgFile) ;
return(1) ; }
/*--------------------------------------------------------------------*/
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