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/*
* Copyright 1997, Regents of the University of Minnesota
*
* stat.c
*
* This file computes various statistics
*
* Started 7/25/97
* George
*
* $Id: stats.c,v 1.1 2003/03/13 06:33:20 karypis Exp $
*
*/
#include <metis.h>
/*************************************************************************
* This function computes the balance of the partitioning
**************************************************************************/
void Moc_ComputePartitionBalance(GraphType *graph, int nparts, idxtype *where, float *ubvec)
{
int i, j, nvtxs, ncon;
float *kpwgts, *nvwgt;
float balance;
nvtxs = graph->nvtxs;
ncon = graph->ncon;
nvwgt = graph->nvwgt;
kpwgts = fmalloc(nparts, "ComputePartitionInfo: kpwgts");
for (j=0; j<ncon; j++) {
sset(nparts, 0.0, kpwgts);
for (i=0; i<graph->nvtxs; i++)
kpwgts[where[i]] += nvwgt[i*ncon+j];
ubvec[j] = (float)nparts*kpwgts[samax(nparts, kpwgts)]/ssum(nparts, kpwgts);
}
free(kpwgts);
}
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