diff options
Diffstat (limited to 'src/gen_laplacian.c')
-rw-r--r-- | src/gen_laplacian.c | 137 |
1 files changed, 0 insertions, 137 deletions
diff --git a/src/gen_laplacian.c b/src/gen_laplacian.c deleted file mode 100644 index 1cc93a4..0000000 --- a/src/gen_laplacian.c +++ /dev/null @@ -1,137 +0,0 @@ - -#include "fracture.h" - -cholmod_sparse *gen_adjacency(const net_t *net, bool dual, bool use_gp, bool symmetric, cholmod_common *c) { - const graph_t *g = net->graph; - uint_t nv; - uint_t ne; - uint_t nre; - uint_t *ev; - - if (use_gp) { - nv = net->dim; - ne = net->nep; - nre = (int_t)net->nep - (int_t)net->num_broken; - ev = net->evp; - } else if (dual) { - nv = g->dnv; - ne = g->ne; - nre = net->num_broken; - ev = g->dev; - } else { - nv = g->nv; - ne = g->ne; - nre = (int_t)g->ne - (int_t)net->num_broken; - ev = g->ev; - } - - uint_t nnz = nre; - - cholmod_triplet *t = CHOL_F(allocate_triplet)(nv, nv, nnz, 1, CHOLMOD_REAL, c); - - int_t *ri = (int_t *)t->i; - int_t *ci = (int_t *)t->j; - double *ai = (double *)t->x; - - t->nnz = nnz; - - uint_t a = 0; - - for (uint_t i = 0; i < ne; i++) { - if ((net->fuses[i] && dual) || (!net->fuses[i] && !dual)) { - uint_t v1 = ev[2 * i]; - uint_t v2 = ev[2 * i + 1]; - - uint_t s1 = v1 < v2 ? v1 : v2; - uint_t s2 = v1 < v2 ? v2 : v1; - - ri[a] = s2; - ci[a] = s1; - ai[a] = 1; - - a++; - } - } - - cholmod_sparse *s = CHOL_F(triplet_to_sparse)(t, nnz, c); - CHOL_F(free_triplet)(&t, c); - - if (!symmetric) { - cholmod_sparse *tmp_s = CHOL_F(copy)(s, 0, 1, c); - CHOL_F(free_sparse)(&s, c); - s = tmp_s; - } - - return s; -} - -cholmod_sparse *gen_laplacian(const net_t *net, cholmod_common *c) { - const graph_t *g = net->graph; - uint_t nv = net->dim; - uint_t ne = net->nep; - uint_t *ev = net->evp; - - uint_t nnz = nv; - - cholmod_triplet *temp_m = CHOL_F(allocate_triplet)(nv, nv, nnz, 1, CHOLMOD_REAL, c); - - int_t *rowind = (int_t *)temp_m->i; - int_t *colind = (int_t *)temp_m->j; - double *acoo = (double *)temp_m->x; - - temp_m->nnz = nnz; - - for (uint_t i = 0; i < nv; i++) { - rowind[i] = i; - colind[i] = i; - acoo[i] = 0; - } - - cholmod_sparse *adjacency = gen_adjacency(net, false, true, true, c); - - for (uint_t i = 0; i < ne; i++) { - if (!net->fuses[i]){ - uint_t v1 = ev[2 * i]; - uint_t v2 = ev[2 * i + 1]; - - acoo[v1]++; - acoo[v2]++; - } - } - - if (net->voltage_bound && g->boundary != TORUS_BOUND) { - for (uint_t i = 0; i < net->dim; i++) { - uint_t v = g->nbi[i]; - for (uint_t j = 0; j < g->vei[v+1] - g->vei[v]; j++) { - uint_t e = g->ve[g->vei[v] + j]; - uint_t v0 = g->ev[2 * e]; - uint_t v1 = g->ev[2 * e + 1]; - - if (g->bq[v0] || g->bq[v1]) { - acoo[i]++; - } - } - } - } else { - acoo[0]++; - } - - for (uint_t i = 0; i < nv; i++) { - if (acoo[i] == 0) acoo[i]++; - } - - //assert(CHOL_F(check_triplet)(temp_m, c)); - - cholmod_sparse *t_out = CHOL_F(triplet_to_sparse)(temp_m, nnz, c); - //assert(CHOL_F(check_sparse)(t_out, c)); - - double alpha[2] = {1, 0}; - double beta[2] = {-1, 0}; - cholmod_sparse *laplacian = CHOL_F(add)(t_out, adjacency, alpha, beta, 1, 1, c); - - CHOL_F(free_sparse)(&t_out, c); - CHOL_F(free_sparse)(&adjacency, c); - CHOL_F(free_triplet)(&temp_m, c); - - return laplacian; -} |