int
main (
int argc,
char * argv[])
{
SCOTCH_Graph grafdat; /* Source graph */
int baseval;
int i;
errorProg ("gbase");
if ((argc >= 2) && (argv[1][0] == '?')) { /* If need for help */
usagePrint (stdout, C_usageList);
exit (0);
}
for (i = 0; i < C_FILENBR; i ++) /* Set default stream pointers */
C_fileTab[i].pntr = (C_fileTab[i].mode[0] == 'r') ? stdin : stdout;
for (i = 1; i < argc; i ++) { /* Loop for all option codes */
if ((argv[i][0] != '-') || (argv[i][1] == '\0') || (argv[i][1] == '.')) { /* If found a file name */
if (C_paraNum < 1) { /* If number of parameters not reached */
C_paraNum ++; /* One more parameter */
baseval = atoi (argv[i]); /* Get the base value */
if ((baseval < 0) || (baseval > 1)) {
errorPrint ("main: invalid base value '%s'", argv[i]);
return (1);
}
continue; /* Process the other parameters */
}
if (C_fileNum < C_FILEARGNBR) /* A file name has been given */
C_fileTab[C_fileNum ++].name = argv[i];
else {
errorPrint ("main: too many file names given");
exit (1);
}
}
else { /* If found an option name */
switch (argv[i][1]) {
case 'H' : /* Give the usage message */
case 'h' :
usagePrint (stdout, C_usageList);
exit (0);
case 'V' :
fprintf (stderr, "gbase, version " SCOTCH_VERSION_STRING "\n");
fprintf (stderr, "Copyright 2007,2008,2010-2012 IPB, Universite de Bordeaux, INRIA & CNRS, France\n");
fprintf (stderr, "This software is libre/free software under CeCILL-C -- see the user's manual for more information\n");
return (0);
default :
errorPrint ("main: unprocessed option '%s'", argv[i]);
exit (1);
}
}
}
fileBlockOpen (C_fileTab, C_FILENBR); /* Open all files */
SCOTCH_graphInit (&grafdat);
SCOTCH_graphLoad (&grafdat, C_filepntrsrcinp, (SCOTCH_Num) baseval, 0);
SCOTCH_graphSave (&grafdat, C_filepntrsrcout);
fileBlockClose (C_fileTab, C_FILENBR); /* Always close explicitely to end eventual (un)compression tasks */
SCOTCH_graphExit (&grafdat);
#ifdef COMMON_PTHREAD
pthread_exit ((void *) 0); /* Allow potential (un)compression tasks to complete */
#endif /* COMMON_PTHREAD */
return (0);
}
int
main (
int argc,
char * argv[])
{
SCOTCH_Graph * cgrfptr;
SCOTCH_Graph cgrfdat;
SCOTCH_Dgraph dgrfdat;
int procglbnbr;
int proclocnum;
int protglbnum; /* Root process */
int flagval;
int i;
int reduloctab[2];
int reduglbtab[2];
#ifdef SCOTCH_PTHREAD
int thrdlvlreqval;
int thrdlvlproval;
#endif /* SCOTCH_PTHREAD */
errorProg ("dggath");
#ifdef SCOTCH_PTHREAD
thrdlvlreqval = MPI_THREAD_MULTIPLE;
if (MPI_Init_thread (&argc, &argv, thrdlvlreqval, &thrdlvlproval) != MPI_SUCCESS)
errorPrint ("main: Cannot initialize (1)");
if (thrdlvlreqval > thrdlvlproval)
errorPrint ("main: MPI implementation is not thread-safe: recompile without SCOTCH_PTHREAD");
#else /* SCOTCH_PTHREAD */
if (MPI_Init (&argc, &argv) != MPI_SUCCESS)
errorPrint ("main: Cannot initialize (2)");
#endif /* SCOTCH_PTHREAD */
MPI_Comm_size (MPI_COMM_WORLD, &procglbnbr); /* Get communicator data */
MPI_Comm_rank (MPI_COMM_WORLD, &proclocnum);
protglbnum = 0; /* Assume root process is process 0 */
if ((argc >= 2) && (argv[1][0] == '?')) { /* If need for help */
usagePrint (stdout, C_usageList);
return (0);
}
flagval = C_FLAGNONE;
for (i = 0; i < C_FILENBR; i ++) /* Set default stream pointers */
C_fileTab[i].pntr = (C_fileTab[i].mode[0] == 'r') ? stdin : stdout;
for (i = 1; i < argc; i ++) { /* Loop for all option codes */
if ((argv[i][0] != '-') || (argv[i][1] == '\0') || (argv[i][1] == '.')) { /* If found a file name */
if (C_fileNum < C_FILEARGNBR) /* File name has been given */
C_fileTab[C_fileNum ++].name = argv[i];
else
errorPrint ("main: too many file names given");
}
else { /* If found an option name */
switch (argv[i][1]) {
case 'C' :
case 'c' :
flagval |= C_FLAGCHECK;
break;
#ifdef SCOTCH_DEBUG_ALL
case 'D' :
case 'd' :
flagval |= C_FLAGDEBUG;
break;
#endif /* SCOTCH_DEBUG_ALL */
case 'H' : /* Give the usage message */
case 'h' :
usagePrint (stdout, C_usageList);
return (0);
case 'R' : /* Root process (if necessary) */
case 'r' :
protglbnum = atoi (&argv[i][2]);
if ((protglbnum < 0) ||
(protglbnum >= procglbnbr) ||
((protglbnum == 0) && (argv[i][2] != '0'))) {
errorPrint ("main: invalid root process number");
}
break;
case 'V' :
case 'v' :
fprintf (stderr, "dggath, version " SCOTCH_VERSION_STRING "\n");
fprintf (stderr, "Copyright 2008,2010 ENSEIRB, INRIA & CNRS, France\n");
fprintf (stderr, "This software is libre/free software under CeCILL-C -- see the user's manual for more information\n");
return (0);
default :
errorPrint ("main: unprocessed option (\"%s\")", argv[i]);
}
}
}
#ifdef SCOTCH_DEBUG_ALL
if ((flagval & C_FLAGDEBUG) != 0) {
fprintf (stderr, "Proc %4d of %d, pid %d\n", proclocnum, procglbnbr, getpid ());
if (proclocnum == protglbnum) { /* Synchronize on keybord input */
char c;
printf ("Waiting for key press...\n");
scanf ("%c", &c);
}
MPI_Barrier (MPI_COMM_WORLD);
}
#endif /* SCOTCH_DEBUG_ALL */
fileBlockOpenDist (C_fileTab, C_FILENBR, procglbnbr, proclocnum, protglbnum); /* Open all files */
if (C_filepntrsrcout == NULL) {
cgrfptr = NULL;
reduloctab[0] =
reduloctab[1] = 0;
}
else {
cgrfptr = &cgrfdat;
reduloctab[0] = 1;
reduloctab[1] = proclocnum;
}
if (MPI_Allreduce (reduloctab, reduglbtab, 2, MPI_INT, MPI_SUM, MPI_COMM_WORLD) != MPI_SUCCESS)
errorPrint ("main: communication error");
if (reduglbtab[0] != 1)
errorPrint ("main: should have only one root");
if (reduglbtab[1] != protglbnum)
errorPrint ("main: root process mismatch");
SCOTCH_dgraphInit (&dgrfdat, MPI_COMM_WORLD);
SCOTCH_dgraphLoad (&dgrfdat, C_filepntrsrcinp, -1, 0);
if ((flagval & C_FLAGCHECK) != 0)
SCOTCH_dgraphCheck (&dgrfdat);
SCOTCH_graphInit (&cgrfdat);
SCOTCH_dgraphGather (&dgrfdat, cgrfptr);
if (cgrfptr != NULL)
SCOTCH_graphSave (cgrfptr, C_filepntrsrcout);
fileBlockClose (C_fileTab, C_FILENBR); /* Always close explicitely to end eventual (un)compression tasks */
SCOTCH_graphExit (&cgrfdat);
SCOTCH_dgraphExit (&dgrfdat);
MPI_Finalize ();
#ifdef COMMON_PTHREAD
pthread_exit ((void *) 0); /* Allow potential (un)compression tasks to complete */
#endif /* COMMON_PTHREAD */
return (0);
}
