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.
47 lines
1.3 KiB
47 lines
1.3 KiB
/*
|
|
* Copyright(C) 1999-2020 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 "structs.h" // for vtx_data
|
|
#include <math.h> // for sqrt
|
|
|
|
void makevwsqrt(double *vwsqrt, struct vtx_data **graph, int nvtxs)
|
|
/* Make vector of square roots of vertex weights. */
|
|
/* vector returned */
|
|
/* graph data structure */
|
|
/* number of vertices in graph */
|
|
{
|
|
extern int NSQRTS; /* number of sqrts already computed */
|
|
extern double *SQRTS; /* values computed */
|
|
int vwgt; /* vertex weight */
|
|
int i; /* loop counter */
|
|
|
|
for (i = 1; i <= nvtxs; i++) {
|
|
vwgt = graph[i]->vwgt;
|
|
if (vwgt <= NSQRTS) {
|
|
vwsqrt[i] = SQRTS[vwgt];
|
|
}
|
|
else {
|
|
vwsqrt[i] = sqrt((double)vwgt);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Extract the subgraph vwsqrt values */
|
|
void make_subvector(double *vec, double *subvec, int subnvtxs, int *loc2glob)
|
|
/* vector for all vertices */
|
|
/* vector for vertices in subgraph */
|
|
/* number of vtxs in subgraph */
|
|
/* subgraph -> graph numbering map */
|
|
{
|
|
int i;
|
|
|
|
for (i = 1; i <= subnvtxs; i++) {
|
|
++subvec;
|
|
(*subvec) = vec[loc2glob[i]];
|
|
}
|
|
}
|
|
|