You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
74 lines
2.7 KiB
74 lines
2.7 KiB
/*
|
|
* Copyright(C) 1999-2020, 2023 National Technology & Engineering Solutions
|
|
* of Sandia, LLC (NTESS). Under the terms of Contract DE-NA0003525 with
|
|
* NTESS, the U.S. Government retains certain rights in this software.
|
|
*
|
|
* See packages/seacas/LICENSE for details
|
|
*/
|
|
|
|
#include "params.h" // for MAXSETS
|
|
#include "smalloc.h" // for sfree
|
|
#include "structs.h"
|
|
#include <stdio.h> // for printf
|
|
|
|
/* Free the space used in the bpmatch routines. */
|
|
static void free2d(double *vals[4][MAXSETS], int *indices[4][MAXSETS])
|
|
{
|
|
sfree(vals[0][1]);
|
|
sfree(vals[0][2]);
|
|
sfree(vals[0][3]);
|
|
sfree(vals[1][2]);
|
|
|
|
sfree(indices[0][1]);
|
|
sfree(indices[0][2]);
|
|
sfree(indices[0][3]);
|
|
sfree(indices[1][2]);
|
|
}
|
|
|
|
void map2d(struct vtx_data **graph, /* data structure with vertex weights */
|
|
double **xvecs, /* vectors to partition */
|
|
int nvtxs, /* number of vertices */
|
|
int *sets, /* set each vertex gets assigned to */
|
|
double *goal, /* desired set sizes */
|
|
int vwgt_max /* largest vertex weight */
|
|
)
|
|
{
|
|
extern int DEBUG_BPMATCH; /* turn on debugging for bipartite matching */
|
|
extern int N_VTX_MOVES; /* total number of vertex moves */
|
|
extern int N_VTX_CHECKS; /* total number of moves contemplated */
|
|
double *vals[4][MAXSETS]; /* values in sorted lists */
|
|
double dist[4]; /* trial separation point */
|
|
double size[4]; /* sizes of each set being modified */
|
|
int *indices[4][MAXSETS]; /* indices sorting lists */
|
|
int startvtx[4][MAXSETS]; /* indices defining separation */
|
|
int nsection = 2; /* number of xvectors */
|
|
int nsets = 4; /* number of sets being divided into */
|
|
|
|
N_VTX_CHECKS = N_VTX_MOVES = 0;
|
|
|
|
/* Generate all the lists of values that need to be sorted. */
|
|
genvals2d(xvecs, vals, nvtxs);
|
|
|
|
/* Sort the lists of values. */
|
|
sorts2d(vals, indices, nvtxs);
|
|
|
|
/* Now initialize dists and assign to sets. */
|
|
inits2d(graph, xvecs, vals, indices, nvtxs, dist, startvtx, size, sets);
|
|
|
|
/* Determine the largest and smallest allowed set sizes. */
|
|
/* (For now, assume all sets must be same size, but can easily change.) */
|
|
|
|
if (DEBUG_BPMATCH > 1) {
|
|
printf(" Calling check before movevtxs\n");
|
|
checkbp(graph, xvecs, sets, dist, nvtxs, nsection);
|
|
}
|
|
|
|
movevtxs(graph, nvtxs, nsets, dist, indices, vals, startvtx, sets, size, goal, vwgt_max);
|
|
|
|
if (DEBUG_BPMATCH > 0) {
|
|
printf(" N_VTX_CHECKS = %d, N_VTX_MOVES = %d\n", N_VTX_CHECKS, N_VTX_MOVES);
|
|
checkbp(graph, xvecs, sets, dist, nvtxs, nsection);
|
|
}
|
|
|
|
free2d(vals, indices);
|
|
}
|
|
|